JP3310824B2 - Printing machine paper transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper transfer device for a printing press, and more particularly to a paper transfer device for a printing press that can be opened and closed.

[0002]

2. Description of the Related Art Sheet-fed printing presses are used for printing sheets. FIG. 6 shows the configuration of a general sheet-fed printing press 2. The sheets 6 stacked in the stacking unit 4 are sucked one by one by the suction device 8 and sent to the sheet feeding device 10. The sheet feeding device 10 transfers the fed sheet 6 to the printing unit 12.

The paper feeder 10 is generally constituted by a paper feed board frame 14 spanned between the paper stacking unit 4 and the printing unit 12 and a paper feed guide frame 16 arranged so as to overlap therewith. ,It is configured. A paper feed belt 18 driven by a motor (not shown) is mounted on the paper feed board frame 14. A pressing roller 20 is mounted on the paper feed guide frame 16.

[0004] The sheet 6 fed to the paper feeder 10 is
The paper is transferred to the printing unit 12 through the space between the paper feed belt 18 and the pressing roller 20. The transferred sheet 6 is
Printing is performed in the printing unit 12.

[0005] When printing is performed by such a sheet-fed printing press 2, a paper jam may occur in the sheet feeding device 10 or the printing unit 12. The printing unit 12
It is also necessary to adjust a pneumatic device (not shown) or the like built in the device. In such a case, it is necessary to open the sheet feeding device 10 so as not to hinder the maintenance work.

FIG. 7 shows an enlarged view of the conventional paper feeder 10 in a half-open state by a solid line. Note that the two-dot chain line in the figure indicates the position of the paper feed guide frame 16 and the like in the transfer state (normal operation state). In FIG. 7,
For simplicity, illustrations of the paper feed belt 18, the pressing roller 20, and the like are omitted.

The paper feed unit frame side end 14 a of the paper feed board frame 14 is rotatably supported by a fixing member 22 via a support shaft 24. The lower portion of the printing unit side end 14 b of the paper feed board frame 14 is placed on the fixing member 22. Printing unit side end 1 of paper feed guide frame 16
6 b is rotatably supported on a printing unit side end 14 b of the paper feed board frame 14 via a support shaft 26.

[0008] The operation of opening the paper feeding device 10 is performed as follows. First, as shown in FIG. 7, the paper feed guide frame 16 is raised from the state of the two-dot chain line to the state of the solid line (in the direction P1) with the support shaft 26 as a fulcrum. At this time, the engaging portion 28a of the stopper piece 28 whose one end is pivotally supported by the paper feed guide frame 16 is engaged with the stopper pin 30 provided on the paper feed board frame 14. For this reason, the paper feed guide frame 16 cannot rotate with respect to the paper feed board frame 14 in the P2 direction. This is a half-open state.

From this state, as shown in FIG. 8, the paper feed board frame 14 and the paper feed guide frame 16 are integrated, and are raised in the direction P3 about the support shaft 24 as a fulcrum. At this time, the engaging portion 32 a of the hook 32, one end of which is pivotally supported by the fixing member 22, engages with the hook pin 34 provided on the paper feed board frame 14. Therefore, the paper feed board frame 14 and the paper feed guide frame 16
Cannot rotate with respect to the fixing member 22 in the P4 direction.
This is the fully open state.

As described above, by setting the sheet feeding device 10 to the half-open state, it is possible to remove a sheet jammed in the sheet feeding device 10. In addition, maintenance work of the printing unit 12 (see FIG. 6) and the like can be performed by setting the fully open state.

[0011]

However, the conventional paper feeder 10 as described above has the following problems.
First, the operation of closing the sheet feeding device 10 is complicated. When the sheet feeding device 10 is opened, when shifting from the transfer state to the half-open state (see FIG. 7), the engaging portion 28 of the stopper piece 28 is used.
The engagement between the a and the stopper pin 30 is automatically performed by the action of the weight of the stopper piece 28. When shifting from the half-open state to the fully-open state (see FIG. 8), the hook 3
The engagement between the second engaging portion 32a and the hook pin 34 is automatically performed by the action of the weight of the hook 32. Therefore, when the sheet feeding device 10 is opened, an operation for engagement is not particularly required.

However, when the sheet feeding device 10 is closed, when the state is shifted from the fully open state to the half open state (see FIG. 8).
In order to release the engagement between the engaging portion 32a and the hook pin 34, the hook 32 must be rotated in the direction P5 against its own weight. When shifting from the half-open state to the transfer state (see FIG. 7), in order to disengage the engagement portion 28a and the stopper pin 30, the stopper piece 28 is turned in the P6 direction against its own weight. Must be moved.

Therefore, when closing the paper feeder 10,
Paper feed board frame 14 and paper feed guide frame 16
It was necessary to perform the operation of releasing the engagement while supporting the weight of the vehicle. For this reason, the operation becomes complicated, which is not preferable in terms of safety.

Second, the operation of opening the paper feeder 10 requires a great deal of force. If a spring for urging the paper feed guide frame 16 in the opening direction (P1 direction) is provided on the paper feed board frame 14, the force required to shift from the transfer state to the half-open state can be reduced.

On the other hand, when the spring is provided, the pressing force acting on the stopper piece 28 based on the weight of the guide frame 16 is offset by the biasing force of the spring, and becomes smaller. Therefore, in the half open state or the fully open state, the engaging portion 28
Since the engaging force between a and the stopper pin 30 becomes small, the engagement becomes unstable, which is not preferable for safety. For this reason, after all, the spring could not be provided, and the operation of opening the sheet feeding device 10 required a large force.

Third, maintenance work has been difficult. When the opening angle α of the paper feed board frame 14 in the fully opened state (see FIG. 8) is increased, the maintenance work is easily performed.

However, when the opening angle α is further increased from the state shown in FIG.
8 becomes negative (clockwise). Therefore, in the fully opened state, the engagement between the engagement portion 28a and the stopper pin 30 is easily released, which is not reliable, which is not preferable for safety.

In order to avoid such a situation, a method of moving the position of the stopper pin 30 toward the support shaft 24 may be considered. However, in this method, a large force is applied to the rotation axes of the stopper pin 30 and the stopper piece 28. Further, if this force is to be suppressed to a small value, it is necessary to lengthen the stopper piece 28, which causes inconvenience in terms of strength and the like. For this reason, the opening angle α of the paper feed board frame 14 in the fully opened state cannot be eventually increased, and it has been difficult to perform maintenance work.

The present invention relates to such a conventional paper feeder 1.
It is an object of the present invention to provide a paper transfer device for a printing press that solves the problems of a paper transfer device of a printing press, such as 0, and that is easy to open and close, safe, and easy to perform maintenance work.

[0020]

According to a first aspect of the present invention, there is provided a paper transfer apparatus for a printing press, wherein when a transfer state is shifted to a state near a half-open state, rotation of a second member in a second rotation direction with respect to a first member is performed. In the second rotation preventing state, the rotation operation of the second member in the first rotation direction with respect to the first member from the fully opened state is performed.
A second direction rotation preventing / releasing means for releasing the second direction rotation prevention state by the operation itself is provided.

According to a second aspect of the present invention, there is provided a paper transfer device for a printing press according to the first aspect of the invention, wherein the second direction rotation prevention and rotation is prevented.
A compression preventing piece having a release engaging means rotatably supported by the second member near one end and having a compression engagement portion near the other end;
It is formed on a member and engages with the compression engagement portion of the compression preventing piece when shifting from the transfer state to the vicinity of the half-open state.
A compression engagement projection provided at a position where the compression prevention piece is detached from the compression engagement portion of the compression preventing piece by the rotation of the second member relative to the member in the first rotation direction.

According to a third aspect of the present invention, there is provided a paper transfer device for a printing press according to the first or second aspect, wherein
When the angle between the member and the second member is equal to or less than the first angle,
When the angle between the first member and the second member is greater than or equal to the first angle, the angle between the first member and the second member is increased. And a restricting urging means that does not urge in a direction in which the pressure is increased.

According to a fourth aspect of the present invention, there is provided a paper transfer device for a printing press according to the third aspect, wherein the restricting urging means is rotatably supported by a second member near one end thereof, and is provided between the two ends. When the distance is equal to or less than the natural length, an elastic link that generates an expanding force between both ends, a portion near one end is rotatably supported by the first member, and a portion near the other end is rotatably supported near the other end of the elastic link. When the rotation angle of the second member with respect to the first member is the first angle in a state in which the distance between both ends of the elastic link and the elastic member is the natural length, And a second direction swing preventing means for preventing rotation of the link in the second rotation direction.

According to a fifth aspect of the present invention, in the paper transporting device of the second aspect, the rotation angle of the second member with respect to the first member is obtained by adding a predetermined play angle to the first angle. A member angle restricting means for restricting the angle from being equal to or more than the third angle is provided, and the compression engagement portion of the compression preventing piece has a first angle.
When the rotation angle of the second member with respect to the member is substantially the first angle, the side that engages with the compression engagement protrusion prevents rotation of the second member with respect to the first member in the second rotation direction. The edge and the rotation angle of the second member with respect to the first member are substantially the first angle.
When it is at an angle, by engaging with the compression engagement projection,
The rotation of the compression blocking piece in the first rotation direction with respect to the second member is prevented, and the first rotation of the compression blocking piece with respect to the second member is performed when the rotation angle of the second member with respect to the first member is the third angle. The lower edge portion which does not prevent the rotation in the moving direction, and engages with the compression engagement protrusion from when the rotation angle of the second member with respect to the first member is substantially the first angle to the third angle. Thereby, the compression preventing piece is formed in a U-shape having an upper edge portion that prevents the compression blocking piece from rotating in the second rotating direction with respect to the second member.
The compression engagement projection is such that the center of gravity of the compression blocking piece in the half-open state is located on the first rotation direction side with respect to the vertically lower half line starting from near the one end of the compression blocking piece, and the compression blocking piece in the fully open state is The center of gravity of the piece is disposed so as to be located on the second rotation direction side with respect to a vertically lower half line starting from near the one end of the compression preventing piece.

According to a sixth aspect of the present invention, there is provided a paper transfer device for a printing press according to the fifth aspect, wherein the member angle regulating means comprises:
An elastic link that is rotatably supported near the one end by the second member, and when the distance between both ends is less than the natural length, an expanding force is generated between both ends, and the elastic link does not extend beyond the natural length even when a pulling force is applied between both ends. A swinging link rotatably supported near the other end by the first member and rotatably supported near the other end near the other end of the elastic link; and both ends of the elastic link formed on the first member. A second direction for preventing the swing link from rotating in the second rotation direction when the rotation angle of the second member with respect to the first member is the first angle in a state where the distance between them is a natural length. A second member that is formed on the first member and that has a natural length between the two ends of the elastic link;
When the rotation angle of the member is the third angle, there is provided a first direction swing prevention means for preventing the swing link from rotating in the first rotation direction.

According to a seventh aspect of the present invention, there is provided a paper transfer device for a printing press, in which the first member is prevented from rotating in the first rotating direction with respect to the fixed member when the half member is moved from the half-open state to the vicinity of the full-open state. A first direction rotation blocking / releasing means for releasing the first direction rotation blocking state by a rotation operation of the second member in the first rotation direction with respect to the first member from the fully opened state and the first direction rotation blocking state. It is characterized by having.

The paper transport device for a printing press according to claim 8 is the paper transport device for a printing press according to claim 7, wherein the first direction rotation prevention and rotation is prevented.
The release means has a pull link rotatably supported at one end near the second member, a rotatable support at one end near the first member, and a rotatable near the other end near the other end of the pull link. A pivoting link supported on the pivot link, a tension blocking piece having one end near the other end rotatably supported by an extension extending from the vicinity of the other end of the pivot link, and having a tension engaging portion near the other end, and a fixing member. Is formed, and engages with the tension engagement portion of the tension blocking piece when shifting from the half-open state to the vicinity of the full-open state,
A tension engagement projection provided at a position separated from the tension engagement portion of the tension prevention piece by rotation of the second member in the first rotation direction with respect to the first member from the fully opened state. I do.

According to a ninth aspect of the present invention, in the paper transporting apparatus for a printing press according to the eighth aspect, the tension engagement portion of the tension preventing piece has a rotation angle of the first member with respect to the fixing member substantially equal to the first angle. When the rotation angle of the second member with respect to the first member is substantially the first angle, the first member engages with the pull engagement projection, thereby causing the first member to move toward the first member with respect to the fixed member.
The rotation angle of the first member with respect to the side edge portion that prevents rotation in the rotation direction and the fixed member is substantially the second angle, and the rotation angle of the second member with respect to the first member is substantially the first angle. At one time, an upper edge portion that engages with the tension engagement projection to prevent the tension blocking piece from rotating in the second rotation direction with respect to the swing link is formed in an L-shape. Between the link and the tension blocking piece, there is provided a tension blocking piece rotation blocking means for blocking the rotation of the tension blocking piece in the second rotation direction with respect to the swing link, and the pull engagement projection is fixed. When the rotation angle of the first member with respect to the member is substantially the second angle and the rotation angle of the second member with respect to the first member is substantially the first angle, the side edge and the upper edge of the pull engagement portion are And the rotation angle of the first member with respect to the fixed member is substantially the second angle. , And the time the rotational angle of the second member relative to the first member is substantially the third angle, is arranged so as not to contact with the side edges and the upper edge of the tensioning engagement portion, it is characterized.

According to a tenth aspect of the present invention, there is provided a paper transfer device for a printing press according to the sixth aspect, wherein the elastic link, the oscillating link, and one end thereof extend from near the other end of the oscillating link. A first direction rotation preventing / releasing means having a tension preventing piece rotatably supported by the extended portion and having a tension engaging portion near the other end, and a tension engaging projection formed on the fixing member. When the tension engaging portion of the tension preventing piece has a rotation angle of the first member with respect to the fixing member substantially equal to the second angle and a rotation angle of the second member with respect to the first member substantially equal to the first angle, A side edge that prevents the first member from rotating in the first rotation direction with respect to the fixed member by engaging with the tension engagement protrusion;
When the rotation angle of the member is substantially the second angle and the rotation angle of the second member with respect to the first member is substantially the first angle, the engagement with the tension engagement protrusion prevents the pulling of the swing link. An upper edge portion for preventing the piece from rotating in the second rotation direction, the second piece being formed in an L-shape with the second link between the swinging link and the tension blocking piece. A tension preventing piece rotation preventing means for preventing rotation in the rotation direction is provided, and the tension engagement projection is configured such that the rotation angle of the first member with respect to the fixing member is substantially equal to the second angle.
When the rotation angle of the second member with respect to the first member is substantially the first angle, the rotation angle of the first member with respect to the fixed member is in contact with the side edge and the upper edge of the pull engagement portion. When the rotation angle of the second member with respect to the first member is substantially the second angle and the rotation angle of the second member with respect to the first member is substantially the third angle, the pull engagement portion is disposed so as not to contact the side edge and the upper edge. And

[0030]

According to the first aspect of the present invention, when the paper transfer device of the printing machine shifts from the transfer state to the vicinity of the half-open state, the rotation of the second member in the second rotation direction with respect to the first member is prevented, and the fully-open state. times from the first rotational direction of the second member relative to the first member
A second direction rotation preventing / releasing means for releasing the rotation inhibition state by the moving operation itself is provided.

Therefore, when shifting from the transfer state to the half-open state, the rotation of the second member in the second rotation direction with respect to the first member can be automatically prevented. Further, when shifting from the fully open state to the transfer state via the half open state, the second member
The rotation-prevented state can be released only by rotating the same. For this reason, when opening and closing the paper transfer device,
There is no need to separately attach and detach the safety device that prevents the rotation of the second member with respect to the first member.

According to a second aspect of the present invention, there is provided a paper transport device for a printing press according to the first aspect of the present invention.
The release means includes a compression preventing piece provided with a compression engaging portion, and a compression engaging projection that engages with and separates from the compression engaging portion of the compression preventing piece.

Therefore, the first operation is automatically performed by the simple operation of engaging and disengaging the compression preventing piece and the compression engaging projection.
The rotation of the second member in the second rotation direction with respect to the member can be prevented, and the rotation prevention state can be automatically released.

According to a third aspect of the present invention, there is provided a paper transfer device for a printing press according to the first or second aspect.
When the angle between the member and the second member is equal to or less than the first angle,
A limiting urging unit that urges in a direction in which an angle between the first member and the second member is widened and does not urge in a direction in which the angle between the first member and the second member is widened when the angle is equal to or larger than the first angle; It is characterized by having.

Therefore, from the transfer state to the half-open state, an urging force acts between the first member and the second member in a direction to open them. Therefore, the operating force from the transfer state to the half-open state is small. Further, in the half-open state and the fully-open state, almost no urging force acts between the first member and the second member. For this reason, in the half open state and the fully open state, the rotation preventing state between the first member and the second member is not damaged.

Further, even when the second angle in the fully opened state is set to be large, the rotation preventing state between the first member and the second member is not damaged. Therefore, in the fully opened state, the paper transfer device can be opened greatly.

According to a fourth aspect of the present invention, there is provided a paper transport apparatus for a printing press according to the third aspect, wherein the restricting urging means includes an expansion force between the both ends when the distance between the both ends is less than the natural length. An elastic link, a swing link, and a second direction swing preventing means for preventing the swing link from rotating in the second rotation direction are provided. Therefore, the restriction urging means can be constituted by a simple link mechanism.

According to a fifth aspect of the present invention, there is provided a paper transfer device for a printing press according to the second aspect, wherein the member angle for restricting the rotation angle of the second member with respect to the first member from becoming more than the third angle. The restriction means is provided, and the compression engagement portion of the compression prevention piece is formed in a U-shape, and the compression engagement projection is positioned such that the center of gravity of the compression prevention piece in the half-open state is located on the first rotation direction side with respect to vertically below. , The center of gravity of the compression blocking piece in the fully opened state is the second
It is characterized by being arranged so as to be located on the rotation direction side.

Therefore, when shifting from the transfer state to the half-open state, the compression engagement portion of the compression preventing piece does not come off from the compression engagement projection. Further, when shifting from the transfer state to the half-open state, the compression preventing piece is urged by its own weight in a direction to engage with the compression engagement projection. When shifting from the fully open state to the half open state, the compression preventing piece is urged by its own weight in a direction to separate from the compression engagement projection. For this reason, the engagement and disengagement operations of the compression blocking piece and the compression engagement projection can be automatically performed by inexpensive and simple means of utilizing gravity.

According to a sixth aspect of the present invention, there is provided a paper transfer device for a printing press according to the fifth aspect, wherein the member angle regulating means comprises:
When the distance between both ends is less than the natural length, an expansion force is generated between both ends, and the elastic link which does not extend beyond the natural length even when a pulling force is applied between both ends, the swing link, and the second rotation of the swing link A second direction rocking preventing means for preventing rotation in the first direction, and a first direction rocking preventing means for preventing rotation of the rocking link in the first rotating direction.

Accordingly, the member angle can be regulated by the member angle regulating means, and the operating force from the transfer state to the half-open state is reduced, and the force between the first member and the second member in the half-open state and the fully-open state is reduced. The rotation preventing state can be secured, and the paper transfer device can be greatly opened in the fully opened state.

According to a seventh aspect of the present invention, there is provided a paper transfer device for a printing press, in which the first member is prevented from rotating in the first rotating direction with respect to the fixed member when the state is shifted from the half-open state to the vicinity of the full-open state. A first-direction rotation preventing / releasing means for releasing the first-direction rotation prevention state by a rotation operation of the second member in the first rotation direction with respect to the first member from the fully opened state and the full-open state; It is characterized by having.

Therefore, when shifting from the half-open state to the vicinity of the fully-open state, the rotation of the first member in the first rotation direction with respect to the fixing member can be automatically prevented. Further, when shifting from the fully open state to the half open state, the second member or the like is rotated.
By simply operating , the rotation inhibition state can be released. Therefore, when opening and closing the paper transfer device, it is not necessary to separately attach and detach the safety device for preventing the rotation of the first member with respect to the fixing member.

The paper transport device for a printing press according to claim 8 is the paper transport device for a printing press according to claim 7, wherein the first direction of rotation is prevented.
The release means includes a tension link, a swing link, a tension prevention piece having a tension engagement part, and a tension engagement projection that engages with and disengages from the tension engagement part of the tension prevention piece. I do.

Therefore, it is possible to automatically prevent the rotation of the first member in the first rotation direction with respect to the fixing member by a simple operation of engaging and disengaging the tension preventing piece and the tension engaging projection. It is also possible to automatically release the rotation blocking state.

According to a ninth aspect of the present invention, in the paper transporting apparatus for a printing press according to the eighth aspect, the tension engaging portion of the tension preventing piece is formed in an L shape, and the swing link and the tension inhibiting piece are formed. Between the first member and the second member with respect to the first member, wherein the tension engagement protrusion contacts the side edge and the upper edge of the tension engagement portion in the fully opened state. When the angle is substantially the third angle, the pull engagement portion is arranged so as not to contact the side edge and the upper edge.

Therefore, when the state is shifted from the half-open state to the fully-open state, the tension preventing piece engages with the tension engaging projection by its own weight without being prevented from rotating by the swing link. Further, when shifting from the fully-open state to the half-open state, the tension preventing piece is prevented from rotating by the swing link, and is detached from the tension engaging projection so as to be lifted. For this reason, the engagement and disengagement of the tension preventing piece and the tension engaging projection can be automatically performed by inexpensive and simple means of utilizing and not using the own weight of the tension preventing piece.

According to a tenth aspect of the present invention, there is provided a paper transporting device for a printing press according to the sixth aspect, wherein the elastic link, the swinging link, the tension preventing piece having the tension engaging portion, and the tension engaging member are provided. And a first direction rotation preventing / releasing means having a projection.

Therefore, many components can be used as both the member angle regulating means and the first direction rotation preventing / releasing means. For this reason, it is possible to have both the function of the member angle regulating means and the function of the first direction rotation preventing / releasing means while suppressing an increase in the number of parts.

[0050]

FIG. 2 is a front view of a sheet feeding device 40 of a sheet-fed printing press which is a paper transfer device of a printing press according to an embodiment of the present invention. FIG. 3 is a view of the sheet feeding device 40 viewed from V1 in FIG. The sheet feeding device 40 shown in FIGS. 2 and 3 is used for the general sheet-fed printing press 2 shown in FIG.
1, the paper feed board frame 44 as a first member spanned between the paper stacking unit 4 as the first functional unit and the printing unit 12 as the second functional unit.
, And a paper feed guide frame 46 as a second member arranged so as to overlap therewith.

The paper feed board frame 44 is provided with a paper feed belt (not shown) driven by a motor (not shown). A pressing roller (not shown) is mounted on the paper feed guide frame 46. Sheets (not shown) sent from the paper stacking unit 4 to the paper feeding device 40 are transferred to the printing unit 12 through a space between the paper feed belt and the pressing roller. The transported sheet is printed in the printing unit 12 (see FIG. 6).

As shown in FIG. 2, the right end 44a, which is the end of the paper feed board frame 44 on the paper stacking unit 4 (see FIG. 6) side, is supported on the paper feed frame 42 as a fixing member by a support shaft 48.
And is rotatably supported via the. The lower part of the left end 44b, which is the end of the paper feed board frame 44 on the printing unit 12 (see FIG. 6) side, is mounted on a part of the paper feed frame 42.

The left end 46 b of the paper feed guide frame 46, which is the end on the printing unit 12 side, is rotatably supported via a support shaft 50 above the left end 44 b of the paper feed board frame 44. The state shown by the solid line in FIG. 2, that is, the state (a) is the transfer state.

One end of a stopper piece 54, which is a compression preventing piece, is rotated with respect to the paper feed guide frame 46 from a left end 46b of the paper feed guide frame 46 via a support shaft 52 provided slightly rightward. Supported as possible.

The other end of the stopper piece 54 is provided with a U-shaped groove 56 which is a compression engagement portion. The U-shaped groove 56 is formed by continuously arranging the upper edge 56a, the side edge 56b, and the lower edge 56c in a U-shape, and the upper edge 56a is configured to be longer than the lower edge 56c. ing.

The paper feed board frame 44 is provided with a stopper pin 58 as a compression engagement projection at a position on the right side of the position of the support shaft 52 provided on the paper feed guide frame 46. In the transfer state, the stopper piece 54 is given a clockwise (clockwise) rotational moment in the second rotational direction around the support shaft 52 by its own weight. Therefore, the lower side 54a of the stopper side 54 is
8 abuts.

A support shaft 60 is provided slightly to the right of the support shaft 52 provided on the paper feed guide frame 46. One end of a gas spring 62 which is both an elastic link and a tension link is provided via the support shaft 60. Are rotatably supported by the paper feed guide frame 46.

A support shaft 64 is provided slightly to the right of the stopper pin 58 provided on the paper feed board frame 44, and one end of the swing link 66 is connected to the paper feed board frame 44 via the support shaft 64. On the other hand, it is rotatably supported.

The other end 66a of the swing link 66 has a support shaft 6
The other end of the gas spring 62 is rotatably supported via. In addition, one end of a hook 70, which is a tension preventing piece, is rotatably supported via a support shaft 68 on an extension 66 b extending from the other end 66 a of the swing link 66.

A notch 72 is provided near the other end of the hook 70.
Is provided. The notch 72 is formed by continuously arranging the side edge 72a, the upper edge 72b, and the side edge facing portion 72c in a U-shape. Among these, the side edge 72a and the upper edge 72b arranged in an L shape make
It constitutes a pull engagement portion. An inclined surface 70 a is provided at the tip of the hook 70.

Note that, as shown in FIG.
On the upper part of the hook 2, a hook pin 78, which is a pulling engagement projection that engages with the notch 72 of the hook 70, is provided.

As shown in FIG. 2, the support shaft 68 of the hook 70
Around the spring pin 74 is a tension blocking piece rotation preventing means for preventing the clockwise rotation of the hook 70.
And a spring pin 76 for preventing a counterclockwise (counterclockwise) rotation as a first rotation direction.

The paper feed board frame 44 is provided with a stopper 80 as a second direction swing preventing means for restricting the swing link 66 from turning clockwise. Also,
To restrict the counterclockwise rotation of the swing link 66, the first
A stopper 82, which is a direction fluctuation preventing means, is provided.

A handle 84 is provided at the center of the paper feed board frame 44 slightly to the left. A handle 86 is provided on the right side of the paper feed guide frame 46.

The handle 84 of the paper feed board frame 44
, A gas spring 88 rotatably supported at one end 88a and rotatably supported at the other end 88b below the support shaft 48 of the sheet feeding frame 42 is disposed.

Next, the operation for opening the paper feeder 40 will be described. First, as shown in FIG.
6, the paper feed guide frame 46 is raised (in the Q1 direction) from the transfer state to the state of the two-dot chain line, that is, the state (b), with the support shaft 50 as a fulcrum.

In the transfer state, the gas spring 62 is in a compressed state, and the swing link 66 is
Is in contact with Therefore, when shifting from the transfer state to the state (b), the restoring force of the gas spring 62
The paper feed guide frame 46 is used for the paper feed board frame 4.
4 is urged in the Q1 direction. Therefore, the paper feed guide frame 46 can be lifted with a small force.

When the gas spring 62 has fully extended and has reached its natural length (state (b)), the paper feed guide frame 4
The biasing force in the Q1 direction with respect to 6 becomes zero. In addition,
In the state (b), the rotation angle θ1 of the paper feed guide frame 46 with respect to the paper feed board frame 44 is the first angle.

On the other hand, when the paper feeding guide frame 46 is pulled up in the Q1 direction from the transfer state, the lower side 54a of the stopper piece 54 slides on the stopper pin 58 and reaches the state of the two-dot chain line. In this state, the U-shaped groove 56 of the stopper piece 54 has not yet been engaged with the stopper pin 58.

The paper feed guide frame 46 is slightly rotated in the Q1 direction from the state (b) shown in FIG. 2 to the state shown by the two-dot chain line in FIG. 4, that is, the state (c).
After that, it is returned to the Q2 direction to return to the state shown by the solid line in FIG. 4, that is, the state shown in (b). By this operation, the U-shaped groove 56 of the stopper piece 54 engages with the stopper pin 58. Therefore, the stopper pin 58 and the upper edge 56 of the U-shaped groove 56
a and the stopper piece 56
Cannot rotate around the support shaft 52 in either the left or right direction.

The engagement between the stopper pin 58 and the side edge 56b of the U-shaped groove 56 allows the paper feed board frame 4
The clockwise rotation of the paper feed guide frame 46 with respect to the rotation direction 4 is prevented (second direction rotation prevention state). The state shown in (b) of FIG. 4 is a half-open state.

As in this embodiment, the position of the stopper pin 80 is set so that a slight gap is formed between the side edge 56b of the U-shaped groove 56 and the stopper pin 58 in the half-open state. Good.

In the half-open state, since the gas spring 62 is fully extended, no force acts to increase the angle between the paper feed board frame 44 and the guide frame 46.
Therefore, the engagement between the U-shaped groove 56 and the stopper pin 58
It does not come off accidentally.

In the state shown in FIG. 4C, the swinging link 66 (indicated by a two-dot chain line) pulled by the extended gas spring 62 comes into contact with the stopper 82. It will not rotate further counterclockwise. On the other hand, the upper edge 56a of the U-shaped groove 56 is formed so as not to come off from the stopper pin 58 even in the state shown in FIG. Therefore, when shifting from the transfer state shown in FIG. 2 to the half-open state shown in FIG. 4, there is no possibility that the stopper piece 54 will rotate clockwise beyond the stopper pin 58.

The paper feed guide frame 4 with respect to the paper feed board frame 44 in the state shown in FIG.
The rotation angle θ3 of No. 6 is the third angle.

Next, the handle 84 (or the handle 84 and the handle 86) is held from the state shown in FIG. 4B, that is, from the half-open state, and the paper feed board frame 44 and the paper feed guide frame 46 are integrated to form FIG. As shown in the figure, the state shown in FIG.
Cause).

When shifting from the half-open state shown in FIG. 4 to the state shown in FIG. 5, the position of the spring pin 74 is set so that the inclined surface 70 a provided at the tip of the hook 70 abuts on the hook pin 78. ing. The hook 70
Pivots the support shaft 68 from the clockwise limit position determined by the spring pin 74 to the counterclockwise limit position (rotational position indicated by a two-dot chain line in FIG. 5) determined by the spring pin 76. And can freely rotate.

Therefore, when shifting to the state shown in FIG. 5, the inclined surface 70a of the hook 70 comes into contact with the hook pin 78, and then enters the Q3 direction so as to climb over the hook pin 78. In the state shown in FIG. The notch 72 of the hook 70 and the hook pin 78 engage. This allows
The counterclockwise rotation of the paper feed board frame 44 and the paper feed guide frame 46 with respect to the paper feed frame 42 is prevented (first direction rotation prevention state). The state of FIG. 5D is a fully open state.

The rotation angle θ2 of the paper feed board frame 44 with respect to the paper feed unit 42 (ie, the paper feed board frame 44 in the transport state (a) of FIG. 2) in the fully open state (d) of FIG. Two angles.

In the half-open state shown in FIG.
Is set so that a small gap is formed between the side end 56b of the paper feed guide frame 46 and the stopper pin 58. However, in the fully open state, the gas spring 6
2 is slightly pushed in, so that the side end 56 of the U-shaped groove 56 is
The gap between b and the stopper pin 58 is eliminated.

Therefore, the U-shaped groove 56 of the stopper piece 54
And the stopper pin 58 is more securely engaged with the stopper pin 58, and is not accidentally disengaged. Therefore, the clockwise rotation of the paper feed guide frame 46 with respect to the paper feed board frame 44 is also reliably prevented. As a result, the second angle θ2 can be increased.

In the transfer state shown in FIG. 2 or the half-open state shown in FIG. 4, the gas spring 88 is in a compressed state. Therefore, when shifting from the half open state (b) shown in FIG. 4 to the fully open state (d) shown in FIG. 5, the paper feed board frame 44 and the paper feed guide frame 46 are moved by the restoring force of the gas spring 88. 42 in the Q3 direction. Because of this, with a little force,
The paper feed board frame 44 and the paper feed guide frame 46 can be lifted.

Next, based on FIG. 1, the fully open state (d)
Now, the operation when the sheet feeding device 40 is closed will be described. First, as shown in FIG. 1, the handle 86 is held, and the paper feed guide frame 46 is set in the state of a two-dot chain line, that is, in the state of (e) with the support shaft 50 as a fulcrum (in the Q4 direction).
cause.

As described above, in this embodiment, in the fully opened state, the gas spring 62 is slightly compressed. Therefore, when shifting from the fully opened state to the state (e), the paper feed guide frame 46 is moved Q4 with respect to the paper feed board frame 44 by the restoring force of the gas spring 62 for a short time until the gas spring 62 is completely extended. Biased in the direction.

When the paper feed guide frame 46 is further rotated in the Q4 direction after the gas spring 62 has completely extended, the stopper piece 54 is also pulled upward, and the stopper piece 5
The engagement between the lower edge 56c of the U-shaped groove 56 and the stopper pin 58 is released. Therefore, the stopper piece 54 rotates counterclockwise with the support shaft 52 as a fulcrum due to its own weight, and is brought into a state shown by a two-dot chain line.

In this state, even if the hand is accidentally released from the handle 86, the paper feed guide frame 46 does not suddenly turn clockwise due to the action of the gas spring 62.

On the other hand, the paper feed guide frame 4
When the pivot 6 is rotated, the swing link 66 pivots counterclockwise about the support shaft 64 via the extended gas spring 62. As the swing link 66 rotates counterclockwise, the extension 66a of the swing link 66 and the spring pin 7
4 abuts, and the clockwise rotation of the hook 70 with respect to the swing link 66 is prevented.

Therefore, thereafter, when the paper feed guide frame 46 is further rotated in the Q4 direction, the hook 7
Numeral 0 is integrated with the swing link 66 and rotates counterclockwise about the support shaft 64 as a fulcrum. For this reason, the engagement between the notch 72 of the hook 70 and the hook pin 78 is released, and the state shown by the two-dot chain line is established. This is the state (e).

In this state, even if the hand is accidentally released from the handle 86, the paper feed board frame 44 does not suddenly turn counterclockwise due to the action of the gas spring 88.

In this embodiment, when shifting from the state (d) to the state (e), first, the engagement between the stopper piece 54 and the stopper pin 58 is released, and then the engagement between the hook 70 and the hook pin 78 is released. Although it is configured to disengage, the order of disengagement may be reversed. Moreover, you may make it disengage simultaneously.

Next, from the state (e), the paper feed guide frame 46 and the paper feed board frame 44 are rotated in the direction of Q5 with the support shaft 48 (see FIG. 2) as a fulcrum, and the state shown in FIG. Return to the state shown in b) (the state shown by the two-dot chain line). In this operation, the paper feed guide frame 46 and the paper feed board frame 44 do not suddenly rotate in the direction of Q5 due to the action of the gas spring 88.

In this state, the engagement between the stopper piece 54 and the stopper pin 58 remains released. Therefore, from the state (b), the paper feed guide frame 46 is
By rotating the support shaft 50 in the direction of Q6 using the support shaft 50 as a fulcrum, it is possible to return to the transfer state (a). Also in this operation, the paper feed guide frame 46 does not suddenly rotate in the direction of Q6 due to the action of the gas spring 62. In this way, the sheet feeding device 40 can be opened and closed by a simple operation.

In this embodiment, the stopper piece 54 and the stopper pin 58 are used as the second direction rotation preventing / releasing means. However, the shapes of the stopper piece 54 and the stopper pin 58 and the positions where these are provided are as follows. It is not limited to this embodiment. In addition, the stopper piece 54 and the stopper pin 58 serve as second direction rotation prevention / release means.
Other than these can also be used.

Although the gas spring 62 is used as the elastic link, a coil spring or the like may be used as the elastic link.

Further, the link mechanism using the gas spring 62, the oscillating link 66 and the stopper 80 is employed as the restricting urging means. The shapes of the gas spring 62, the oscillating link 66 and the stopper 80, and the positions where these are provided Is not limited to this embodiment. Further, a mechanism other than the link mechanism can be used as the restriction urging means. Further, it may be configured not to use the restriction urging means.

Further, by adopting a link mechanism using the gas spring 62, the swing link 66, the stopper 80 and the stopper 82 as the member angle restricting means, the restricting urging means and the components are shared. The member angle regulating means may be provided without using the restricting urging means and the component parts. Further, the shapes of these members and the positions at which they are provided are not limited to those in this embodiment. Also, a mechanism other than the link mechanism can be used as the member angle regulating means. Furthermore, it is also possible to configure so that the member angle regulating means is not used.

The first direction rotation preventing / releasing means includes a gas spring 62, a swing link 66, and a hook 70.
By adopting the link mechanism using the hook pin 78 and using the limiting biasing means and the member angle regulating means as constituent elements, the limiting biasing means and the member angle regulating means also serve as components. No rotation in the first direction
Release means may be provided. Further, the shapes of these members and the positions at which they are provided are not limited to those in this embodiment. Further, a mechanism other than the link mechanism can be used as the first direction rotation preventing / releasing means.

In this embodiment, both the second direction rotation preventing / releasing means and the first direction rotation preventing / releasing means are used. It is also possible to use one of the one-way rotation preventing / releasing means.

In this embodiment, as shown in FIG. 6, a paper feeding device 40 provided between the paper stacking unit 4 and the printing unit 12 of the sheet-fed printing press is used as a paper transfer device of the printing press. However, the present invention is not limited to a paper feeding device, and for example, in a printing press having a plurality of printing units, the present invention can be applied to a paper transfer device between printing units. it can. Further, the present invention can be applied to a paper transfer device provided between a printing unit and a functional unit for a post-processing step of a printing step. Further, the present invention can be applied to a paper transfer device of a printing press other than a paper transfer device of a sheet-fed printing press, such as a paper transfer device of a printing press for printing continuous paper.

[0100]

According to the first aspect of the present invention, the paper transfer device for a printing press prevents rotation of the second member in the second rotation direction with respect to the first member when shifting from the transfer state to the vicinity of the half-open state.
A second direction rotation preventing / releasing means for releasing the rotation inhibition state by a rotation operation itself of the second member in the first rotation direction with respect to the first member from the fully opened state is provided.

Therefore, when shifting from the transfer state to the half-open state, the rotation of the second member in the second rotation direction with respect to the first member can be automatically prevented. Further, when shifting from the fully open state to the transfer state via the half open state, the second member
The rotation-prevented state can be released only by rotating the same. For this reason, when opening and closing the paper transfer device,
There is no need to separately attach and detach the safety device that prevents the rotation of the second member with respect to the first member. That is, the opening and closing work of the paper transfer device can be easily and safely performed.

According to a second aspect of the present invention, there is provided a paper transfer device for a printing press according to the first aspect, wherein
The release means includes a compression preventing piece provided with a compression engaging portion, and a compression engaging projection that engages with and separates from the compression engaging portion of the compression preventing piece.

Therefore, the first operation is automatically performed by the simple operation of engaging and disengaging the compression preventing piece and the compression engaging projection.
The rotation of the second member in the second rotation direction with respect to the member can be prevented, and the rotation prevention state can be automatically released. That is, the opening and closing operation of the paper transfer device can be easily and safely performed with a simple structure.

According to a third aspect of the present invention, there is provided a paper transporting apparatus for a printing press according to the first or second aspect.
When the angle between the member and the second member is equal to or less than the first angle,
A limiting urging unit that urges in a direction in which an angle between the first member and the second member is widened and does not urge in a direction in which the angle between the first member and the second member is widened when the angle is equal to or larger than the first angle; It is characterized by having.

Therefore, from the transfer state to the half-open state, an urging force acts between the first member and the second member in a direction to open them. Therefore, the operating force from the transfer state to the half-open state is small. Further, in the half-open state and the fully-open state, almost no urging force acts between the first member and the second member. For this reason, in the half open state and the fully open state, the rotation preventing state between the first member and the second member is not damaged.

Further, even when the second angle in the fully opened state is set to be large, the rotation preventing state between the first member and the second member is not impaired. Therefore, in the fully opened state, the paper transfer device can be opened greatly.
That is, opening and closing work of the paper transfer device can be easily and safely performed, and furthermore, maintenance work can be easily performed.

According to a fourth aspect of the present invention, there is provided a paper transfer device for a printing press according to the third aspect of the present invention, wherein the limiting urging means includes an extension force between the both ends when the distance between the both ends is less than the natural length. An elastic link, a swing link, and a second direction swing preventing means for preventing the swing link from rotating in the second rotation direction are provided.

Therefore, the restriction urging means can be constituted by a simple link mechanism. That is, with a simple structure, opening and closing operations of the paper transfer device can be performed easily and safely, and further, maintenance operations can be performed easily.

According to a fifth aspect of the present invention, there is provided a paper transfer device for a printing press according to the second aspect, wherein the member angle for restricting the rotation angle of the second member with respect to the first member from becoming more than the third angle. The restriction means is provided, and the compression engagement portion of the compression prevention piece is formed in a U-shape, and the compression engagement projection is positioned such that the center of gravity of the compression prevention piece in the half-open state is located on the first rotation direction side with respect to vertically below. , The center of gravity of the compression blocking piece in the fully opened state is the second
It is characterized by being arranged so as to be located on the rotation direction side.

Therefore, when shifting from the transfer state to the half-open state, the compression engagement portion of the compression preventing piece does not come off from the compression engagement projection. Further, when shifting from the transfer state to the half-open state, the compression preventing piece is urged by its own weight in a direction to engage with the compression engagement projection. When shifting from the fully open state to the half open state, the compression preventing piece is urged by its own weight in a direction to separate from the compression engagement projection. For this reason, the engagement and disengagement operations of the compression blocking piece and the compression engagement projection can be automatically performed by inexpensive and simple means of utilizing gravity. That is, with a simpler structure, the opening and closing operation of the paper transfer device can be easily and safely performed.

According to a sixth aspect of the present invention, there is provided a paper transfer device for a printing press, wherein the member angle regulating means comprises:
When the distance between both ends is less than the natural length, an expansion force is generated between both ends, and the elastic link which does not extend beyond the natural length even when a pulling force is applied between both ends, the swing link, and the second rotation of the swing link A second direction rocking preventing means for preventing rotation in the first direction, and a first direction rocking preventing means for preventing rotation of the rocking link in the first rotating direction.

Therefore, the member angle can be regulated by the member angle regulating means, and the operating force from the transfer state to the half-open state is reduced, and the half-open state and the fully-open state cause a gap between the first member and the second member. The rotation preventing state can be secured, and the paper transfer device can be greatly opened in the fully opened state. In other words, by providing the member angle regulating means with other functions, the opening / closing operation of the paper transfer device can be easily and safely performed with a simpler structure, and the maintenance operation can be easily performed. Can be configured.

According to a seventh aspect of the present invention, there is provided a paper transfer device for a printing press, in which the first member is prevented from rotating in the first rotating direction with respect to the fixed member when the half-open state is shifted to the vicinity of the fully opened state. A first-direction rotation preventing / releasing means for releasing the first-direction rotation prevention state by a rotation operation of the second member in the first rotation direction with respect to the first member from the fully opened state and the full-open state; It is characterized by having.

Therefore, when shifting from the half-open state to the vicinity of the fully-open state, the rotation of the first member in the first rotation direction with respect to the fixing member can be automatically prevented. Further, when shifting from the fully open state to the half open state, the second member or the like is rotated.
By simply operating , the rotation inhibition state can be released. Therefore, when opening and closing the paper transfer device, it is not necessary to separately attach and detach the safety device for preventing the rotation of the first member with respect to the fixing member. That is, the opening and closing work of the paper transfer device can be easily and safely performed.

The paper transfer device for a printing press according to claim 8 is the paper transfer device for a printing press according to claim 7, wherein the first direction rotation prevention and rotation are prevented.
The release means includes a tension link, a swing link, a tension prevention piece having a tension engagement part, and a tension engagement projection that engages with and disengages from the tension engagement part of the tension prevention piece. I do.

Therefore, it is possible to automatically prevent the first member from rotating in the first rotating direction with respect to the fixing member by a simple operation of engaging and disengaging the tension preventing piece and the tension engaging projection. It is also possible to automatically release the rotation blocking state. That is, the opening and closing operation of the paper transfer device can be easily and safely performed with a simple structure.

According to a ninth aspect of the present invention, there is provided the paper transporting device for a printing press according to the eighth aspect, wherein the tension engaging portion of the tension preventing piece is formed in an L shape, and the swing link and the pulling inhibiting piece are formed. Between the first member and the second member with respect to the first member, wherein the tension engagement protrusion contacts the side edge and the upper edge of the tension engagement portion in the fully opened state. When the angle is substantially the third angle, the pull engagement portion is arranged so as not to contact the side edge and the upper edge.

Therefore, when the state is shifted from the half-open state to the fully-open state, the tension preventing piece engages with the tension engaging projection by its own weight without being prevented from rotating by the swing link. Further, when shifting from the fully-open state to the half-open state, the tension preventing piece is prevented from rotating by the swing link, and is detached from the tension engaging projection so as to be lifted. For this reason, the engagement and disengagement of the tension preventing piece and the tension engaging projection can be automatically performed by inexpensive and simple means of utilizing and not using the own weight of the tension preventing piece. That is, with a simpler structure, the opening and closing operation of the paper transfer device can be easily and safely performed.

According to a tenth aspect of the present invention, there is provided the paper transporting device for a printing press according to the sixth aspect, wherein the elastic link, the oscillating link, the tension preventing piece having the tension engaging portion, and the tension engaging member. And a first direction rotation preventing / releasing means having a projection.

Therefore, many parts can be used as both the member angle regulating means and the first direction rotation preventing / releasing means. For this reason, it is possible to have both the function of the member angle regulating means and the function of the first direction rotation preventing / releasing means while suppressing an increase in the number of parts. That is,
With a simpler structure, the opening and closing work of the paper transfer device can be easily and safely performed, and further, the maintenance work can be easily performed.

[Brief description of the drawings]

FIG. 1 is a diagram showing an operation when a sheet feeding device of a sheet-fed printing press according to an embodiment of the present invention is closed from a fully opened state.

FIG. 2 is a diagram illustrating a transfer state of a sheet feeding device of a sheet-fed printing press according to an embodiment of the present invention.

FIG. 3 is a view of a sheet feeding device of a sheet-fed printing press according to an embodiment of the present invention, as viewed from a transfer state V1.

FIG. 4 is a view showing a sheet feeding device of a sheet-fed printing press according to an embodiment of the present invention in a half-open state.

FIG. 5 is a drawing showing a sheet feeding device of a sheet-fed printing press according to an embodiment of the present invention in a fully opened state.

FIG. 6 is a diagram illustrating a configuration of a general sheet-fed printing press.

FIG. 7 is a view showing a transfer state and a half-open state of a conventional sheet feeding device of a sheet-fed printing press.

FIG. 8 is a drawing showing a sheet feeding device of a conventional sheet-fed printing press in a fully opened state.

[Explanation of symbols]

 40 paper feeder 44 paper feed board frame 46 paper feed guide frame 50 spindle 52 ········ Support shaft 54 ······· Stopper piece 56 ········· U-shaped groove 58 ········· Stopper pin 62 ····· ... Gas spring 64 ... Support shaft 66 ... Swing link 70 ... Hook 72 ... Notch 78 ・ ・ ・ ・ ・ ・ ・ ・ Hook pin

Claims (10)

(57) [Claims] A first function unit for performing processing relating to printing and a second function unit
In a paper transfer device of a printing press provided between a first function unit and a second function unit for transferring paper between the first function unit and the second function unit, the paper transfer device is provided fixed to the first function unit or the second function unit. A fixed member, a first member rotatably supported at one end near the fixed member, and a second member rotatably supported near one end near the other end of the first member. Are located at a pivot end in the first pivot direction with respect to the fixed member, the second member is at a pivot end in the second pivot direction with respect to the first member, and the first member and the second member are substantially parallel to each other. From the transfer state, the transfer state, the half-open state in which the second member is rotated by the first angle in the first rotation direction from the transfer state, and from the half-open state, the first member and the second member are moved in the second rotation direction in the second rotation direction. A fully opened state rotated by an angle, and when the state shifts from the transfer state to the vicinity of the half open state, the first member With a second direction rotation preventing state to prevent the rotation in the second rotational direction of the member, the turning operation itself from the fully open state to the first rotational direction of the second member relative to the first member
A second-direction rotation preventing / releasing means for releasing the second-direction rotation inhibition state. 2. A paper transfer device for a printing press according to claim 1, wherein said second direction rotation preventing / releasing means is rotatably supported at one end near said second member and at a compression engagement portion near said other end. And a compression blocking piece formed on the first member, which is engaged with the compression engaging portion of the compression blocking piece when moving from the transfer state to the vicinity of the half-open state, and the second member with respect to the first member from the fully opened state. A compression engagement projection provided at a position where the compression engagement piece is separated from the compression blocking piece by rotation in one rotation direction. 3. A paper transfer device for a printing press according to claim 1, wherein the angle between the first member and the second member is equal to or less than the first angle. Limiting urging means for urging in the direction of increasing the angle and not energizing in the direction of increasing the angle between the first member and the second member when the angle between the first member and the second member is greater than or equal to the first angle Characterized by having,. 4. A paper transfer device for a printing press according to claim 3, wherein the restricting urging means is rotatably supported by a second member near one end, and between both ends when the distance between both ends is less than a natural length. An elastic link that generates an expansion force on the first member; an oscillating link that is rotatably supported at one end near the first member and rotatably supported near the other end near the other end of the elastic link; When the rotation angle of the second member with respect to the first member is the first angle in a state in which the distance between both ends of the elastic link is a natural length, the swing link rotates in the second rotation direction. And a second direction swing preventing means for preventing movement. 5. A paper transfer device for a printing press according to claim 2, wherein the rotation angle of the second member with respect to the first member is restricted to be not more than a third angle obtained by adding a predetermined play angle to the first angle. The angle regulating means is provided, and the compression engagement portion of the compression blocking piece engages with the compression engagement protrusion when the rotation angle of the second member with respect to the first member is substantially the first angle. A side edge for preventing rotation of the second member in the second rotation direction with respect to the first member; and a compression engagement angle projection when the rotation angle of the second member with respect to the first member is substantially the first angle. The engagement prevents the compression blocking piece from rotating in the first rotation direction with respect to the second member, and compresses the second member with respect to the second member when the rotation angle of the second member with respect to the first member is the third angle. A lower edge that does not prevent the blocking piece from rotating in the first rotating direction; Engagement with the compression engagement protrusions from when the rotation angle of the second member to the second member is substantially the first angle to when the rotation angle of the second member is the third angle, in the second rotation direction of the compression blocking piece with respect to the second member. The compression engagement protrusion is formed in a U-shape, and the center of gravity of the compression blocking piece in a half-open state is vertically downward starting from the vicinity of the one end of the compression blocking piece. The center of gravity of the compression blocking piece in the fully opened state is located on the first rotation direction side with respect to the half line, and is located in the second rotation direction side with respect to the vertically lower half line starting from near the one end of the compression blocking piece. Characterized by being arranged to be located. 6. A paper transfer device for a printing press according to claim 5, wherein the member angle regulating means is rotatably supported by a second member near one end, and between both ends when a distance between both ends is less than a natural length. An elastic link that does not extend beyond its natural length even when a tensile force is applied between both ends, and an end near one end is rotatably supported by the first member, and the other end is near the other end of the elastic link. A swing link rotatably supported, formed in the first member, and in a state where the distance between both ends of the elastic link is a natural length, the rotation angle of the second member with respect to the first member is the first angle. In some cases, a second direction swing preventing means for preventing the swing link from rotating in the second rotating direction, and a state in which the distance between both ends of the elastic link is a natural length formed on the first member. And when the rotation angle of the second member with respect to the first member is the third angle, Which is characterized by comprising a first direction rocking preventing means for preventing the rotation of the first rotation direction of the click, the. 7. A first functional unit for performing processing relating to printing and a second functional unit
A paper transfer device for a printing press provided between a first function unit and a second function unit for transferring paper between the first function unit and the second function unit, wherein the paper transfer device is fixed to the first function unit or the second function unit. A fixed member, a first member rotatably supported at one end near the fixed member, and a second member rotatably supported near one end near the other end of the first member. Are located at a pivot end in the first pivot direction with respect to the fixed member, the second member is at a pivot end in the second pivot direction with respect to the first member, and the first member and the second member are substantially parallel to each other. From the transfer state, the transfer state, the half-open state in which the second member is rotated by the first angle in the first rotation direction from the transfer state, and from the half-open state, the first member and the second member are moved in the second rotation direction in the second rotation direction. It has a fully open state rotated by an angle. With the first direction rotation preventing state to prevent the rotation in the first rotational direction of the first member, the turning operation itself from the fully open state to the first rotational direction of the second member relative to the first member
A first direction rotation preventing / releasing means for releasing the first direction rotation preventing state. 8. A paper transfer device for a printing press according to claim 7, wherein said first direction rotation preventing / releasing means comprises: a pulling link rotatably supported by a second member near one end; One member is pivotally supported, and the other end is pivotally supported near the other end of the pulling link, and the one end is pivoted to an extension extending from the vicinity of the other end of the swing link. A tension blocking piece movably supported, the other end of which has a pull engaging portion, and a fixing member formed on the fixing member, which engages with the pull engaging portion of the pull blocking piece when shifting from the half-open state to the vicinity of the fully open state; A tension engagement projection provided at a position separated from the tension engagement portion of the tension prevention piece by rotation of the second member in the first rotation direction with respect to the first member from the fully opened state. What to do. 9. The paper transfer device for a printing press according to claim 8, wherein the tension engagement portion of the tension preventing piece has a rotation angle of the first member with respect to the fixed member substantially equal to the second angle, and a rotation angle of the first member with respect to the first member. The rotation angle of the two members is almost the first
When the angle is the angle, a side edge portion that engages with the pull engagement projection to prevent the first member from rotating in the first rotation direction with respect to the fixing member; and a rotation angle of the first member with respect to the fixing member. Is substantially the second angle, and the rotation angle of the second member with respect to the first member is substantially the first angle.
When the angle is an angle, the upper edge portion that engages with the tension engagement projection to prevent the tension blocking piece from rotating with respect to the swing link in the second rotation direction is formed in an L-shape. Between the rocking link and the tension blocking piece, a tension blocking piece rotation blocking means for blocking the rotation of the tension blocking piece in the second rotation direction with respect to the rocking link is provided, and the pull engagement projection is provided. The rotation angle of the first member with respect to the fixing member is substantially the second angle, and the rotation angle of the second member with respect to the first member is substantially the first angle.
When the angle is the angle, the rotation angle of the first member with respect to the fixed member is substantially the second angle, and the rotation angle of the second member with respect to the first member is substantially the second angle. When substantially at the third angle, it is arranged so as not to contact the side edge and the upper edge of the pulling engagement portion. 10. A paper transfer device for a printing press according to claim 6, wherein said elastic link, said swinging link, and an extension near one end thereof extend from near the other end of said swinging link so as to be rotatable. And a first-direction rotation preventing / releasing means having a tension blocking piece having a pulling engagement portion near the other end and a pulling engagement projection formed on the fixing member, wherein the pulling engagement portion of the tension blocking piece is provided. However, the rotation angle of the first member with respect to the fixing member is substantially the second angle, and the rotation angle of the second member with respect to the first member is substantially the first angle.
When the angle is the angle, a side edge portion that engages with the pull engagement projection to prevent the first member from rotating in the first rotation direction with respect to the fixing member; and a rotation angle of the first member with respect to the fixing member. Is substantially the second angle, and the rotation angle of the second member with respect to the first member is substantially the first angle.
When the angle is an angle, the upper edge portion that engages with the tension engagement projection to prevent the tension blocking piece from rotating with respect to the swing link in the second rotation direction is formed in an L-shape. Between the rocking link and the tension blocking piece, a tension blocking piece rotation blocking means for blocking the rotation of the tension blocking piece in the second rotation direction with respect to the rocking link is provided, and the pull engagement projection is provided. The rotation angle of the first member with respect to the fixing member is substantially the second angle, and the rotation angle of the second member with respect to the first member is substantially the first angle.
When the angle is the angle, the rotation angle of the first member with respect to the fixed member is substantially the second angle, and the rotation angle of the second member with respect to the first member is substantially the second angle. When substantially at the third angle, it is arranged so as not to contact the side edge and the upper edge of the pulling engagement portion.