JPS6023253A - Paper folding device - Google Patents

Abstract

PURPOSE:To set more than one position of folded line by placing a shoot which has an opening part near the contact part of three rolls which are mutually in contact with one another and providing a deterring member which presses the middle part of a sheet of paper passing through said shoot. CONSTITUTION:A shoot 4 is provided which has an opening part in a position near the contact part of rolls 1, 2, 3 arranged to be in contact one another in order. In the longitudinal middle part of the shoot 4 is provided a deterring member 6 which travels between a pressing position where it presses the middle part of a sheet of paper (f) passing through the shoot by means of excitation and de-excitation of a solenoid 5 and a releasing position apart from the pressing position. The passage of the sheet of paper (f) is detected by means of a sensor 8 to excite the solenoid 5 after a certain time, and the deterring member 6 advances in the pressing position to press a certain position in the middle part of the sheet of paper (f) and stop the sheet of paper.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a paper folding device, mainly a filter paper folding device attached to a copying machine or the like.

PRIOR TECHNOLOGY As shown in FIG.
0τ roll α, 20th roll α, 20th roll B, and 30th roll C are arranged in parallel so as to be in contact with each other, and a chute d having an opening is arranged in a position close to the contact part of each roll σl'6+'. , a stopper e is provided at a predetermined position in the longitudinal direction of the chute d, and when the paper f is fed by the 10th rule α and the 20th rule b, the edge of the paper f hits the stopper e. When the paper f is brought into contact and stopped, the intermediate portion of the paper f is transferred to the 20th-rule b and the 30th-rule.
Currently, paper folding is being carried out due to the paper being eaten up by Le C.

With this conventional structure, the folding portion of the paper f is determined by the distance between the stopper C and the contact line between the 20th-rule b and the 30th-rule C, and If you want to change the distance between the edge of the paper f and the folded part due to changes, etc., it is necessary to adjust the position of the stopper e each time, or to install multiple separate stoppers, resulting in poor workability ( , @4j construction is also complicated.

OBJECTS OF THE INVENTION It is an object of the invention to provide a paper folding device which can set a plurality of positions of folding lines of paper edges by providing one restraining member, has good workability, and has a simple structure.

Structure of the Invention The 10th rule 1, the 20th rule 2, and the 3rd fourth rule 3 are arranged in parallel so as to be in contact with each other, and each of the rolls 1.
2. In a paper folding device in which a chute 4 having a mouth portion with Iaf' is disposed in a position close to the contact portion of 3, a chute 4 is located in the longitudinally intermediate portion of the chute 4 and is spaced apart from the paper f that always passes through the chute 4. A restraining member 6 is provided which is located at a release position and operates to a pressing position where the end of the paper f enters the chute 4 and presses the middle part of the paper f after a predetermined time has elapsed. After the edge of paper f enters the chute 4 and a predetermined period of time has elapsed, the restraining member 6 that operates presses the middle part of the paper f to stop it, and by subsequently feeding the paper f,
As in the past, the middle part of the paper f is the 20th-rule 2 and the 3rd
By changing the predetermined time during which the end edge of the paper j enters the chute and the rear restraint member 6 operates, the middle of the paper By changing the pressing position of the part, the distance between the edge of the paper f and the folded part can be changed, and by extension, one restraining member 6 can fold various sizes of paper at desired positions. Embodiment 2 to 4 show embodiments of the present invention.
The 0-rule 1, the 20th-rule 2, and the 30th-rule 3 are arranged in parallel so as to be in contact with each other, and each of the rolls 1, 2.3
A chute 4 that inserts the button opening in a position close to the contact part of
The arrangement is the same as before.

As shown in FIG. 2, at an appropriate position in the longitudinally intermediate portion of the chute 4, there is a suppressing position where the intermediate portion of the paper f passing through the chute 4 is pressed by excitation and demagnetization of the solenoid 5, and the chute 4. The release position (
A restraining member 6 is provided which operates between the imaginary lines.

As shown in FIG. 3, for example, three restraining members 6 may be arranged in parallel in the width direction of the chute 4 and linked to the solenoid 5 via a common shaft 7, or as shown in FIG. As shown, a friction member 9 made of rubber or the like may be provided on the surface in contact with the paper f.

The restraining member 6 is operated to the suppressing position and the releasing position by energizing and demagnetizing the solenoid 5 as described above, and the energizing of the solenoid 5 causes the rolls in the chute 4 to move 1° 2.3 This is done after a predetermined time t (seconds) has elapsed after the passage of the edge of the paper f is detected by a transmission type sensor 8 provided at a position close to the paper f, and the predetermined time t is The settings can be changed arbitrarily, and can be changed to cope with the case where it is desired to change the distance f between the insulation of the paper f and the folded part by changing the size of the paper f, etc.

Then, the paper f is fed in at a constant speed by the 10th rule 1 and the 20th rule 2, the passage of the edge of the paper f is detected by the transmission type sensor 8, and after a predetermined time of 63 seconds, the solenoid 5 is activated. The suppressing member 6, which is energized and has been in the release position, moves to the pressing position and presses a predetermined position in the middle of the paper f to stop it, and as the paper f is subsequently fed, the paper f is released as in the conventional case. The intermediate portion is bitten into the 20th rule 2 and the 30th rule 3 to perform paper folding. paper f 4r
When it is desired to change the distance between the edge of the paper f and the folded part due to a change in the size, etc., the passage of the edge of the paper f is detected by the transmission type sensor 8, and the solenoid 5 is energized after a predetermined time of 42 seconds has elapsed. In this way, the pressing position of the paper f of the restraining member 6 is shifted from the above-mentioned predetermined position to press and stop the paper f, and by changing the pressing position of the restraining member 6 against the paper f, the edge of the paper f and It is possible to change the distance from the folded part,
Furthermore, with one restraining member 6, sheets of various sizes can be folded at desired positions, and the advantage of the invention is that the edge of the paper f entered into the chute 4 can be restrained after a predetermined period of time has elapsed. The member 6 is operated to press the middle part of the paper f, and by appropriately selecting the predetermined time, the distance between the edge of the paper f and the folded part can be changed at any time. 6 allows paper of various sizes to be folded at desired positions.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of a conventional paper folding device, FIGS. 2 to 4 show an embodiment of a paper D1 folding device N according to the present invention, FIG. 2 is a schematic side view, and FIG. is a schematic perspective view, and FIG. 4 is a partial perspective view. 1 is the 10th rule, 2 is the 20th rule, 3 is the 30th rule, 4
is the chute, 6 is the restraining member, and f is the paper. Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Masaaki Yonehara Patent Attorney Tadatan Hamamoto 1 Picture;

Claims (1)

[Claims] The 10th roll 1, the 20th roll 2, and the 30th roll 3 are arranged in parallel so as to be in contact with each other, and each roll 1,
2. In a paper folding device in which a chute 4 having an opening in a position close to the contact portion of 3 is disposed, a release position is provided at a longitudinally intermediate portion of the chute 4 at a release position that is spaced apart from the paper f that always passes through the chute 4. At the same time, the end of the Itf enters the chute 4, and after a predetermined time elapses, the paper f
A paper folding device characterized in that a restraining member 6 is provided which operates at a pressing position to press an intermediate portion of the paper folding device.