JP2001058392A - Ink supplying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance operability by providing an ink tray to enable labor-saving and shortening of a preparing time of a cleaning work in association with ink replacing or the like in a printer and satisfactorily attachably and detachably providing the tray. SOLUTION: A fixing unit 40 for fixing an ink tray 30 in an ink fountain by pressing a bracket of the tray 30 to a locking part provided at the fountain is provided at this side of the fountain. The unit 40 has a supporting member 47 provided under a placing surface for placing the bracket, a rotary member 42 supported at its one end by the member 47 to rotate in a plane substantially perpendicular to a width direction of the unit, a pressing means 41 provided at the member 42 to press the bracket in the state that the member 42 is rotated upward to fix the tray 30 in the fountain, and restraining means 43a, 44a, 43b, 44b, 46 for restricting rotation of the member 32 when the bracket is pressed by the means 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink supply device for a printing press such as a rotary printing press or a sheet-fed printing press, and more particularly, to an ink supply device having an ink fountain provided with a detachable ink tray.

[0002]

2. Description of the Related Art A printing machine such as a sheet-fed printing press or a rotary printing press includes an ink source roller 10 as shown in FIGS.
Ink supply device 10 in which ink fountain 102 is arranged in front of
0 is equipped. The ink fountain 102 includes a peripheral surface of the ink source roller 101, a plurality of ink keys (blades) 103 forming the bottom of the ink fountain 102, and an ink key 10.
3 has two side plates 104 (only the back side is shown in FIG. 12) whose front end is in sliding contact with the peripheral surface of the ink source roller 101. Then, the ink in the ink fountain 102 is supplied to the ink source roller 101 from the gap between the ink source roller 101 and the tip of the ink key 103,
The ink is transferred to a downstream ink roller group via a call roller (not shown).

As shown in FIG. 13, a plurality of ink keys 103 are arranged side by side in the lateral direction of the apparatus. The space between adjacent ink keys 103 and between the ink keys 103 at both ends and the side plate 104 are in sliding contact with each other. . Further, the ink keys 103 can swing independently about a fulcrum shaft 105, and an ink amount adjusting device 106 is provided below each ink key 103.

[0004] The ink amount adjusting device 106 includes a push-up fitting 106b that engages with the lower surface of the tip of each ink key 103, and a pusher 106a that contacts the push-up fitting 106b and swings the push-up fitting 106b by expansion and contraction. And
The tip of the ink key 103 is oscillated by moving the pusher 106b up and down by moving the pusher 106b up and down by appropriately expanding and contracting the pusher 106a, thereby adjusting the gap between the ink key 103 and the ink source roller 101. The thickness of the supplied ink film is adjusted.

[0005]

By the way, in the above-mentioned conventional ink supply device 100, the adjacent ink keys 10
Ink key 103 and side plate 10 between 3, 103 and both ends
4, a small gap is secured so that they can slide with each other. For this reason, there is a case where the ink penetrates into a small gap between the ink keys 103 due to a capillary phenomenon or the like. Thus, the ink keys 103, 10
If the ink that has penetrated from the gap 3 solidifies, the operation of the ink key 103 becomes unstable, or in the worst case, it does not work, so that accurate ink film thickness control becomes impossible. There were challenges.

[0006] After printing or when changing ink,
It is necessary to wipe off the remaining ink inside the ink fountain 102 with a rag or the like and wash it off with a cleaning liquid, but it is difficult to remove the ink due to its high viscosity.
In particular, it is difficult to remove the ink that has entered the gaps between the ink keys 103, 103, and the burden on the operator who performs cleaning is heavy.

Further, in order to improve the productivity, it is necessary to shorten the preparation time at the time of order change and to improve the operation rate of the apparatus, but as described above, the load associated with cleaning at the time of ink replacement is large. And end up spending a lot of cleaning time. Therefore, it has been desired to reduce the burden on the operator by saving labor in the cleaning work and to improve the operation rate of the apparatus by shortening the cleaning time.

In order to prevent the ink from directly adhering to the ink key and the side plate, the present applicant detachably mounts an insertion container (which is called an ink tray) for covering the upper surface of the ink key and the inner surface of the side plate in the ink fountain. I created a configuration to do. When such an ink tray is provided, one problem is how to easily attach and detach the ink tray.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been developed to reduce the labor required for cleaning work associated with ink replacement in a printing press and to improve productivity by shortening the preparation time. It is another object of the present invention to provide an ink supply device capable of satisfactorily attaching and detaching the ink tray and improving the operability.

[0010]

According to a first aspect of the present invention, there is provided an ink supply apparatus for supplying ink from an ink fountain to an ink source roller. The bracket provided in the part,
The ink fountain is provided with an ink tray detachably mounted in the ink fountain by being placed on a side plate constituting left and right side walls of the ink fountain. A locking portion for locking the tray is provided, and a fixing device for fixing the ink tray in the ink fountain by pressing the bracket against the locking portion is provided on the front side of the ink fountain. The fixing device includes a support member provided below a mounting surface on which the bracket is mounted, and a rotating member supported at one end by the support member and configured to rotate in a plane substantially perpendicular to the device width direction. Pressing means for fixing the ink tray in the ink fountain by pressing the bracket in a state where the rotating member is turned upward provided by the turning member; and Rotation of the rotating member when pressed It is characterized by comprising a restraining means for restraining.

According to a second aspect of the present invention, there is provided the ink supply device according to the first aspect, wherein the restraining means includes a locking member provided on the rotating member and an upper portion of the rotating member. And a locking member provided on a turning locus of the rotating member. When the rotating member rotates upward, the locking member is locked to the locking member, thereby It is characterized in that the rotation is restricted.

According to a third aspect of the present invention, in the ink supply apparatus of the second aspect, an elongated hole is provided in the support member, and a support shaft provided at one end of the rotating member is provided with the support shaft. It is supported by a hole and has a claw as the latching member, a pin as the latched member, and slides along the slot while rotating the rotating member upward about the support shaft. The claw is thereby hooked on the pin.

According to a fourth aspect of the present invention, in the ink supply apparatus according to any one of the first to third aspects, a screw is provided as the pressing means, and the screw is tightened. The bracket is pressed by the tip of the screw.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 11 show an ink supply device according to an embodiment of the present invention. FIG. 1 is a side view showing a schematic configuration of the ink supply device.
FIG. 4 is a diagram showing a configuration of an ink tray according to the present ink supply device, FIGS. 5 and 6 are diagrams showing a configuration of a pressing tool according to the present ink supply device, and FIGS. 7 to 11 are operational effects of the present ink supply device. It is a figure for explaining.

First, the schematic configuration of the present ink supply device will be described. As shown in FIG. 1, the ink supply device 2 includes an ink fountain 23 formed by an ink source roller 20, an ink key 21, and a side plate 22. During printing, ink is stored in the ink fountain 23 and supplied to the ink source roller 20. A plurality of ink keys 21 are juxtaposed and closely arranged in the width direction of the apparatus, and the rear end is rotatably supported by a support shaft 18 provided on a support base 24. The side plate 22 is fixed to the support base 24 so as to sandwich the ink key 21 from both sides, and the front end thereof is in sliding contact with the peripheral surface of the ink source roller 20.

Below the ink fountain 23, a cross beam 5 for supporting each member constituting the ink fountain 23 is provided.
The cross beam 5 is provided with an ink amount adjusting device 25. The ink amount adjusting device 25 includes a push-up metal fitting 26 that engages with the lower surface of the tip of each ink key 21, and a pusher 27 that abuts the tip with the push-up metal fitting 26 and expands and contracts in the front-rear direction by turning the knob 28 or the motor 29. I have. Then, the tip of the ink key 21 is swung by moving the pusher 27 up and down about the fulcrum 26a by appropriately expanding and contracting the pusher 27.
The thickness of the supplied ink film is adjusted by adjusting the gap between the ink film and the ink. In addition, below the tip portion of the ink key 21, a first ink receiving the ink dropped from the ink key 21 is provided.
An ink receiver 6A and guides 6C and 6D for guiding the ink in the first ink receiver 6A to the second ink receiver 6B are provided.

The ink supply device 2 has a detachable ink tray 30 inside the ink fountain 23. The ink tray 30, as shown in FIGS.
Side wall 3 corresponding to left and right side plates 22, 22 of ink fountain 23
1, 3 and a bottom plate 3 whose tip side is inclined downward corresponding to the ink key 21 forming the bottom of the ink fountain 23.
It has two.

The lower surface of the bottom plate 32 is reinforced by a reinforcing plate 33, and extends rearward and downward at the rear end of the bottom plate 32. This extended portion adheres ink to the support table 24. The cover 34 for preventing the occurrence of the above is formed. Then, on the lower surface of the boundary between the bottom plate 32 and the cover 34,
Fixing pins 35, 35 protrude toward the left-right width direction. At the upper ends of the side walls 31, 31 of the ink tray 30, brackets 36 are fixed outward, respectively, and a handle 37 is attached to the upper surface of the bracket 36.

The ink tray 30 covers most of each ink key 21 and each side plate 22 (this portion is referred to as a coated portion), so that it does not come into direct contact with the ink in the ink fountain 23. Ink base roller 20
The upper surface of the leading end of each ink key 21 and the inner surface of the leading end of each side plate 22 slidably in contact with the ink tray via the ink liquid film are provided on the ink tray 3.
It is exposed so as not to be covered with the ink 0 and directly in contact with the ink in the ink fountain 23 (this portion is called an exposed portion). That is, the inner peripheral surface of the ink fountain 23 is the inner surface of the ink tray 30 and the exposed portion (tip portion) 21A of each ink key 21.
, The exposed portion 22 </ b> A of each side surface 22, and the outer peripheral surface of the ink source roller 20.

The seam of the ink fountain 23 is formed between the ink tray 30 and the tip portion (exposed portion) 21A of each ink key 21 and between the ink tray 30 and the exposed portion 22A of each side plate 22. Requires a sealing process. Therefore, concave grooves 31c and 32c are formed on the outer surfaces of the end portions of the side walls 31 and 31 and the bottom plate 32, respectively.
A packing (seal member) 38 having a continuous seal surface is fitted in the concave grooves 31c and 32c.

When the ink tray 30 is mounted in the ink fountain 23, the portion of the packing 38 that is fitted in the concave groove 31 c on the outer surface of the tip of the side wall 31 is formed on the inner surface of the side plate 22 of the ink fountain 23. The portion of the packing 38 that is pressed against the upright wall portion of the step (locking portion) 22 a and that is fitted in the concave groove 32 c on the outer surface of the tip of the bottom plate 32 is formed on the top surface of the tip of the ink key 21. The stop portion 21a comes into pressure contact with the upright wall portion (see FIG. 1).

By the packing 38, the tip of the side wall 31 of the ink tray 30 and the side plate 22 of the ink fountain 23, and the tip of the bottom plate 32 of the ink tray 30 and the ink key 21 of the ink fountain 23 are formed. The space between the ink tray 30 and the ink key 21 or the side plate 2 is sealed.
Ink is prevented from leaking from the ink fountain 23 at the joint between the two.

Since the ink tray 30 is detachably provided inside the ink fountain 23 as described above, the contact area of the ink key 21 with the ink is greatly reduced, so that the ink can enter the gap between the ink keys 21 and 21. As a result, the operation of the ink key 21 is stabilized and the cleaning time of the ink fountain 23 is shortened, so that the operation rate of the apparatus can be improved and the productivity can be improved. Note that FIG.
The ink tray 30 shown in FIGS. 7 to 11 is different from the one shown in FIGS. 1 to 4 in the shape of the bracket 36 and the handle 37, but shows another example of a configuration that the present ink tray 30 can take. It does not change its function.

By the way, as described above, the ink tray 30
The gap between the ink key 21 and the side plate 22 is
The ink tray 30 must be securely and accurately fixed in the ink fountain 23 in order to securely seal and prevent ink leakage. Further, in order to improve the workability and the productivity at the time of ink replacement, it is necessary that the ink tray 30 can be easily attached and detached. It is necessary to adopt a configuration that does not hinder the attachment and detachment of the 30.

Therefore, in the present ink supply device 2,
The fixing of the ink tray 30 to the ink fountain 23 is performed by a pressing tool (fixing device) 40 having a configuration as described below. The pusher 40 is a device that fixes the ink tray 30 by pressing a rear inclined surface 36 a of the bracket 36 of the ink tray 30, and is provided at both left and right ends of the support base 24 corresponding to the left and right brackets 36, 36. Have been. The specific configuration of the pusher 40 will be described. The pusher 40 supports a lever (rotating member) 42 having a fixing screw (pressing means) 41 as shown in FIGS. It mainly comprises a bracket (support member) 47 to be fixed and a pin (locked member) 46 used for fixing the lever 42. In addition,
Here, the pusher 40 on the right side as viewed from the operator is shown.

First, the bracket 47 is fixed to the back surface (the surface facing the operator) 24a of the support base 24 with a bolt 49 or the like, and is provided with an elongated hole (slit) 47a penetrating in the device width direction. ing. The long hole 47a is provided on the bracket 3 of the ink tray 30 on the extension of the longitudinal direction of the oval.
The position and the direction of the rear inclined surface 36a are set so that the rear inclined surface 36a comes.

Further, the bolt 49 is disposed below the elongated hole 47a on the outer side in the width direction of the apparatus, and is located on the rotation locus of the lever 42 to be described later.
It functions as a stopper. Pin 46
Is a bracket 4 fixed to the back surface 24a of the support base 24.
8, the center of which is supported by both ends 46a, 46b.
Are projected in the width direction of the device. The bracket 48 is disposed above the bracket 47 and outside in the device width direction, and is positioned so as to be sandwiched between rotation trajectories of arms 43 and 44 provided on a lever 42 described later. I have. The length of the pin 46 is
The inner side (end 46b side) has a length that does not interfere with the ink tray, and the outer side (end 46a side) has the same length as the fixing pin 35 of the ink tray 30.

Next, the structure of the lever 42 will be described. The lever 42 has a pin 45 at one end thereof.
The other end has two parallel arms 43 and 44. The pin 45 is disposed at right angles to the lever 42, and the arms 43 and 44 are provided in parallel with the rotation surface of the lever 42 around the pin 45 as a rotation axis. Arm 43,
Reference numeral 44 denotes a shape curved inward, and a claw (hook member) 4 is provided on the inner end portion and the intermediate portion, respectively.
3a, 44a, 43b and 44b are provided. The width of the space between the arms 43 and 44 is the same as that of the bracket 4 described above.
8 is set to be slightly wider than the width of the bracket 8, and when the ink tray 30 is fixed, the bracket 48 is inserted into the space between the arms 43 and 44.

A bracket 42a for supporting the fixing screw 41 is provided at the joint between the arm 44 and the lever 42 on the side where the pin 45 is provided. A screw hole 41b is formed in the bracket 42a, and the fixing screw 41 has its tip (screw portion) 41a facing inward (on the side where the arms 43 and 44 extend).
Is screwed into.

Each component (the lever 42, the bracket 47, the pin 46, etc.) of the pusher 40 has the above-described configuration, and the engagement relationship between them will be described below. First,
The engagement relationship between the lever 42 and the bracket 47 will be described. The lever 42 is disposed outside the bracket 47 in the width direction of the apparatus, and a pin 45 provided at an end thereof is inserted into the slot 4.
7a. The pin 45 is rotatably supported in the elongated hole 47a, so that the lever 42
5, and can be moved in parallel along the elongated hole 47a.

When the lever 42 is turned, the bolt 49 and the bracket 48 are present in the turning locus as described above. First, when the lever 42 is turned counterclockwise to the lower side, the back surface 42b of the lever 42 comes into contact with the bolt 49, and further rotation is restricted. That is, the bolt 49 functions as a stopper for stopping the rotation of the lever 42. At this time, the lever 42 is moved to the arm 43,
44 is inclined downward with the upward direction, and also functions as a hook for hanging the fixing pin 35 of the ink tray 30 (see FIGS. 9 to 11).

On the other hand, from the state shown in FIG.
When the arm 2 is rotated clockwise upward, the arms 43 and 44 interfere with the fixing pins 35 and the pins 46 as they are. Are engaged by the elongated holes 47a, and by operating the lever 42 to slide the pin 45 upward with respect to the elongated holes 47a, as shown in FIG. 8, interference with these can be avoided. It has become. That is, the claws 43a at the tips of the arms 43 and 44,
The distance between the pin 44a and the pin 45 should be at least
5 and the distance between the pin 46 and the upper end of the elongated hole 47a.

On the other hand, with respect to the distance between the pin 46 and the lower end of the elongated hole 47a, the distance between the claws 43a and 44a and the pin 45 is set to be substantially equal or slightly shorter. The bracket 48 is located between the rotation trajectories of the arms 43 and 44 as described above. Therefore, the pin 45 is
If the pin 45 is slid downward along the elongated hole 47a again after the pin 45a is slid upward along the long hole 47a after avoiding interference between the claws 43a, 44a and the fixing pin 35 and the pin 46 by sliding upward. a), as shown in FIG.
The respective ends 46a and 46b of the pins 46 are loosely fitted in the grooves between the claw 43b and the claw 43b and in the grooves between the claw 44a and the claw 44b. At this time, the fixing pin 35 is set in a curved portion between the claws 43b and 44b and the lever 42.

As described above, the claws 43a and 43b of the arm 43
When the claws 44a and 44b of the arm 44 are engaged with the pin 46, the rear part of the bracket 36 of the ink tray 30 is tilted on the axis of the fixing screw 41 as shown in FIGS. The surface 36a is located. Then, when the fixing screw 41 is tightened, the distal end portion 41a comes into contact with the rear inclined surface 36a, and when further tightened, the claw 43a and the claw 44a are hooked on the pin 46. As a result, the rotation of the lever 42 is restrained, and by further tightening the fixing screw 41, the rear inclined surface 36a is pressed by the distal end 41a of the fixing screw 41. The screw hole 41b into which the fixing screw 41 is inserted is bored so that the fixing screw 41 and the rear inclined surface 36a are in vertical contact.

The pusher 40 according to the present ink supply device 2 has the above-described configuration, and the right and left pushers 40, 4
By tightening the fixing screws 41, 41, the rear inclined surfaces 36a, 36a of the left and right brackets 36, 36 are directed toward the tip of the ink tray 30 (the direction of the gap between the ink key 21 and the ink source roller 20). The seal member 38 of the ink tray 30 is pushed and the step portion 22 of the ink fountain 23 is pressed.
a, 21a so that the ink tray 30 is fixed.

The front ends 36 of the left and right brackets 36
The positioning bolts 39 of the ink tray 30 are respectively provided at b. The positioning bolt 39 is brought into contact with the protrusion 22 b provided on the upper surface of the side plate 22, thereby defining the mounting position of the ink tray 30 in the front-rear direction. The position of the ink tray 30 in the front-rear direction can be adjusted by adjusting the amount of tightening of the positioning bolt 39, and the position in the height direction is adjusted by the height adjusting screw 19 provided on the bracket 36. I can do it.

Since the ink supply device 2 according to one embodiment of the present invention is configured as described above, the attachment and detachment of the ink tray 30 to and from the ink fountain 23 are performed as follows. First, when removing the ink tray 30 from the ink fountain 23, as shown in FIG. 7, the fixing screw 41 is loosened, and the tip 41a is fixed to the rear inclined surface 36 of the bracket 36.
Separate a certain distance from a. Then, as shown in FIG. 8, the lever 42 is pulled upward with the fixing screw 41. At this time, the lever 42 slides upward by the length of the elongated hole 47a, and the pin 46 and the claw 43 of the arm 43 are moved.
a, 43b and the engagement of the arm 44 with the claws 44a, 44b are released.

When the engagement with the pin 46 is released, next,
As shown in FIG.
While rotating downward (in the counterclockwise direction in FIG. 9),
It is lowered downward along the elongated hole 47a. The rotation of the lever 42 stops when its back surface abuts the bolt 49 and the pin 45 descends to the lower end of the elongated hole 47a, and its own weight, that is, the arms 43 and 44 are tilted downward with their own weight. Posture is maintained.

By performing the above operation on the left and right pushers 40, the fixing of the ink tray 30 to the ink fountain 23 is released. Then, as shown in FIG. 10, the ink tray 30 is taken out from the ink fountain 23 by pulling it out with the left and right handles 37. At this time, as described above, the lever 42 is pivoted downward, and there is no obstacle in the direction in which the ink tray 30 is pulled out, so that the ink tray 30 can be pulled out easily.

The lever 42 can be used as a hook for hooking the fixing pin 35 of the ink tray 30 because the levers 43 and 44 are kept in a posture inclined downward with the arms 43 and 44 facing upward. As shown, the ink tray 3 pulled out from the ink fountain 23 by hooking the left and right fixing pins 35, 35 on the levers 42, 42, respectively.
0 can be temporarily stored temporarily.

Next, when the ink tray 30 is mounted on the ink fountain 23, an operation reverse to the above-described operation is performed. That is, as shown in FIG. 10, the ink tray 30 is carried by holding the handle 37, and the left and right brackets 36, 36 are hung on the side plates 22, 22, as shown in FIG. The tray 30 is set. At this time, instead of installing the ink tray 30 directly in the ink fountain 23, as shown in FIG. 11, the left and right fixing pins 35, 35 are temporarily placed by being hooked on the levers 42, 42, and then temporarily placed. It can be installed in the ink fountain 23.

When the ink tray 30 is set in the ink fountain 23, the positioning bolt 39 is brought into contact with a convex portion 22b provided on the upper surface of the side plate 22 to position the ink tray 30 in the front-rear direction. . If necessary, the amount of tightening of the positioning bolt 39 and the height adjusting screw 19 is adjusted to adjust the position in the front-rear direction and the height direction.

When the positioning of the ink tray 30 is completed, the lever 42 is rotated upward while sliding the pin 45 to the upper end of the elongated hole 47a as shown in FIG. Then, when the pivoted lever 42 hits the fixing pin 35, the lever 42 is pushed down, and FIG.
As shown in FIG.
a, 43b and hooks 44a, 44b. Then, the claws 43a and 43b and the claws 44a and 44b
6, the fixing screw 41 is tightened, and the rear inclined surface 36a is pressed by the tip 41a of the fixing screw 41, and the sealing member 38 of the ink tray 30 is attached to the step portions 22a, 21a of the ink fountain 23. Press to fix the ink tray 30.

As described above, according to the present ink supply device 2,
When the ink tray 30 is installed in the ink fountain 23, the sealing member 3 of the ink tray 30 is
8 is pressed against and fixed to the step portions 22a, 21a of the ink fountain 23, so that the gap between the ink tray 30 and the ink key 21 and the side plate 22 can be securely sealed to prevent ink leakage. There is an advantage. Further, there is an advantage that the pressing force can be appropriately adjusted by the tightening amount of the fixing screw 41.

Then, the ink tray 3 by the pressing tool 40 is used.
The fixing of 0 is completed only by hooking the claws 43a, 43b and the claws 44a, 44b at the tips of the arms 43, 44 extending from the lever 42 on the pin 46 and tightening the fixing screw 41. Loosen 41 and nails 43a, 43b,
The fixing of the ink tray 30 to the ink fountain 23 can be released only by releasing the engagement between the pawls 44a, 44b and the pin 46, so that the ink tray 3 can be easily operated.
There is also the advantage that 0 can be fixed and unlocked.

Further, since the pushers 40 are provided at the left and right ends of the ink supply device 2, they do not hinder the worker from approaching the ink supply device 2, especially the ink fountain 23. Since the lever 42 provided with the lever 41 rotates downward, the ink tray 30
There is no interference with the lever 42 when removing from the ink fountain 23 or placing on the ink fountain 23. Therefore, according to the present ink supply device 2, the ink tray 30
There is also an advantage that the workability can be improved by facilitating attachment and detachment to the ink fountain 23.

As described above, according to the ink supply apparatus 2, the ink tray 30 can be easily and reliably fixed to the ink fountain 23, and the ink tray 30 can be easily attached and detached. The dirt in the ink fountain 23 can be reduced to save labor for cleaning work, and the workability at the time of ink replacement and the like can be greatly improved, thereby improving productivity.

It should be noted that the present invention is not limited to the above-described embodiment, and can be implemented with various modifications without departing from the spirit of the present invention. For example, in the above embodiment,
The lever 42 is provided with two parallel arms 43 and 44, and the pin 46 is provided with a claw 43 so as to sandwich the bracket 48.
a, 43b, and the claws 44a, 44b, but the arm may be one, and the claws may be provided only on the tip side.

In the above embodiment, the arms 43,
The claws 43a, 43b, and the claws 44a,
Although the rotation of the lever 42 is restrained by hooking the pin 44b on the pin 46, the pin provided on the arm side may be hooked on the claw provided on the support base 24. That is, as long as the locking member provided on the lever 42 is hung on the locking member provided on the support base 24 side to restrict the rotation of the lever 42, the structure is the same as that of the above-described embodiment. There is no limitation on the thing. Further, not only the locking member may be locked to the locked member but also the lever 42 itself may be provided with a locking mechanism.

In the above-described embodiment, the fixing screw 41 is employed as the pressing means, and the bracket 36 is pressed by tightening the fixing screw 41. However, the specific structure of the pressing means is as follows. However, the present invention is not limited to this. For example, a plunger provided with a spring may be employed as the pressing means, and the bracket 36 may be pressed by the urging force of the spring.

[0051]

As described above in detail, according to the ink supply device of the present invention, when the ink tray is mounted in the ink fountain, the mounting of the ink tray in the ink fountain by the fixing device is performed. Since the position can be securely fixed, there is an advantage that the adhesion of ink to the ink fountain can be reliably prevented.

Further, the pressing means which comes into contact with the bracket and presses it is rotated downward together with the rotating member, so that when the ink tray is removed from the ink fountain or mounted on the ink fountain. There is also an advantage that the workability can be improved by easily attaching and detaching the ink tray to and from the ink fountain without interfering with the rotary member.

Further, according to the ink supply apparatus of the present invention, when the pivoting member is pivoted upward, the pivoting member can be pivoted only by engaging the retaining member with the latched member. Therefore, there is an advantage that the fixing operation of the ink tray can be easily performed. In particular, claim 3
According to the above-described ink supply device of the present invention, the rotation of the rotation member can be restrained only by hooking the claw on the pin, so that there is an advantage that the operation becomes easier.

Further, according to the ink supply apparatus of the present invention, since the blanket can be pressed only by tightening the screw, there is an advantage that the fixing of the ink tray can be completed easily. Further, since the pressing force can be adjusted by the screw tightening amount, there is an advantage that the ink tray can be reliably fixed by pressing with an optimum force.

[Brief description of the drawings]

FIG. 1 is a side view showing a schematic configuration of an ink supply device as one embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of an ink tray according to the ink supply device as one embodiment of the present invention.

FIG. 3 is a side view illustrating a configuration of an ink tray according to the ink supply device as one embodiment of the present invention.

FIG. 4 is a view showing a state of engagement between an ink tray and an ink fountain according to the ink supply device as one embodiment of the present invention, and a part of a bracket is shown broken;

5A and 5B are diagrams illustrating a configuration of a pressing tool according to the ink supply device as one embodiment of the present invention, wherein FIG.
(B) is a plan view.

FIG. 6 is a perspective view illustrating a configuration of a lever according to the ink supply device as one embodiment of the present invention.

FIG. 7 is a side view for explaining a method of attaching and detaching an ink tray according to the ink supply device as one embodiment of the present invention.

FIG. 8 is a side view for explaining a method of attaching and detaching an ink tray according to the ink supply device as one embodiment of the present invention.

FIG. 9 is a side view for explaining a method of attaching and detaching an ink tray according to the ink supply device as one embodiment of the present invention.

FIG. 10 is a side view for explaining a method of attaching and detaching an ink tray according to the ink supply device as one embodiment of the present invention.

FIG. 11 is a side view for explaining a method of attaching and detaching an ink tray according to the ink supply device as one embodiment of the present invention.

FIG. 12 is a schematic side view showing a configuration of a conventional ink supply device.

FIG. 13 is a schematic top view of the inside of an ink fountain showing the configuration of a conventional ink supply device.

[Explanation of symbols]

 2 Ink supply device 20 Ink source roller 21a Step (locking portion) 22 Side plate 22a Step (locking portion) 23 Ink fountain 30 Ink tray 35 Fixing pin 36 Bracket 40 Pusher (fixing device) 41 Fixing screw (pressing means) 42) Lever (rotating member) 43a, 44a Claw (locking member forming restraining means) 43b, 44b Claw (locking member forming restraining means) 46 Pin (locking member forming restraining means) 47 Bracket (support member) 47a Long hole

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[Procedure amendment]

[Submission date] July 10, 2000 (2007.1.
0)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

2. An elongated hole is provided in said supporting member, a supporting shaft provided at one end of said rotating member is supported by said elongated hole, a claw is provided as said latching member, and a pin is provided as said stationary member. the provided, the the pivoting member, characterized in that to hook in the pin claw by sliding along the long hole while rotating upward as the shaft the support shaft, according to claim 1, wherein Ink supply device.

3. A screw is provided as the pressing pressure means, characterized by pressing the bracket by the tip portion of the screw by going tighten the screw, according to claim 1 or
3. The ink supply device according to 2 .

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

[0010]

According to a first aspect of the present invention, there is provided an ink supply apparatus for supplying ink from an ink fountain to an ink source roller. The bracket provided in the part,
The ink fountain is provided with an ink tray detachably mounted in the ink fountain by being placed on a side plate constituting left and right side walls of the ink fountain. A locking portion for locking the tray is provided, and a fixing device for fixing the ink tray in the ink fountain by pressing the bracket against the locking portion is provided on the front side of the ink fountain . .

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

[0011] The fixing device is mounted on the bracket.
A support member provided below a mounting surface on which the
One end is supported by the support member and is substantially perpendicular to the device width direction.
A rotating member that rotates in a plane, and
Presses the bracket with the rotating member rotated upward
Pressing means for fixing the ink tray in the ink fountain
The rotating portion when the bracket is pressed by the pressing means.
Restraining means for restraining the rotation of the material, wherein the restraining means is integrated with the ink fountain on a locking member provided on the rotating member and on a rotating locus of the rotating member upward. consists of a stationary member provided in, and the該掛stop member during rotation of the upper the pivoting member characterized by constraining the rotation of the pivoting member by hooking on the stationary member .

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

According to a second aspect of the present invention, in the ink supply apparatus of the first aspect , an elongated hole is provided in the support member, and a support shaft provided at one end of the rotating member is provided with the support shaft. Along with being supported by the hole, a claw is provided as the engaging member , a pin is provided as the stationary member , and the rotating member is slid along the elongated hole while rotating upward about the support shaft. The hook is hooked to the pin by means of

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction contents]

According to a third aspect of the present invention, there is provided the ink supply device according to the first or second aspect , wherein a screw is provided as the pressing means, and the screw is tightened so that a tip end of the screw is provided. The bracket is pressed by means of:

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0053

[Correction method] Change

[Correction contents]

[0053] Further, it is possible to restrain only by rotation of the rotating member is hooked on a stationary member engaging member during upward rotation of the rotating member, facilitate the work of fixing the ink tray There is also the advantage that it can be done. In particular, according to the ink supply device of the present invention described in claim 2, it is possible to restrain the rotation of only the rotating member is hooked claws to pin, there is an advantage that more work is facilitated .

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0054

[Correction method] Change

[Correction contents]

Further, according to the ink supply device of the present invention described in claim 3, it is possible to press the blanket tighten the screws, has the advantage that it is possible to easily complete the fixing of the ink tray Further, since the pressing force can be adjusted by the screw tightening amount, there is an advantage that the ink tray can be reliably fixed by pressing with an optimum force.

Claims (4)

[Claims] 1. An ink supply device for supplying ink from an ink fountain to an ink source roller, wherein brackets provided at left and right ends are mounted on side plates forming left and right side walls of the ink fountain. The ink fountain is provided with an ink tray detachably provided in the ink fountain. The ink fountain is provided with a locking portion for abutting against the front end of the ink tray and locking the ink tray. A fixing device for fixing the ink tray in the ink fountain by pressing the bracket against the locking portion is provided on the front side, and the fixing device is provided below a mounting surface on which the bracket is mounted. A rotating member supported at one end by the supporting member and rotating in a plane substantially perpendicular to the device width direction; and the rotating member is provided with the rotating member to move upward. While rotating, Pressing means for pressing the bracket to fix the ink tray in the ink fountain, and restraining means for restraining rotation of the rotating member when the bracket is pressed by the pressing means. Ink supply device. 2. The restraining means comprises: a locking member provided on the rotating member; and a locked member provided on a turning trajectory of the rotating member in an upward direction. 2. The ink supply device according to claim 1, wherein when the member is rotated upward, the rotation of the rotation member is restrained by locking the locking member to the locked member. 3. An elongated hole is provided in the support member, a support shaft provided at one end of the rotating member is supported by the elongated hole, and a claw is provided as the engaging member. 3. The claw is hooked on the pin by sliding along the elongated hole while rotating the rotating member upward around the support shaft as an axis. An ink supply device as described in the above. 4. A screw is provided as said pressing means, and said bracket is pressed by a tip of said screw by tightening said screw.
The ink supply device according to any one of the above items.