JP2830870B2 - Mechanism for measuring the bending resilience of paper sheets - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for measuring the bending resilience of paper sheets, and more particularly to a mechanism for measuring the resilience of individual mails for preventing obstacles in automatic sorting of mails.

[0002]

2. Description of the Related Art Heretofore, a machine for processing various kinds of paper sheets including postcards and envelopes such as mails for sorting or the like has not been required to perform such high-speed processing. Therefore, the strength of the bending resilience caused by the strength of the elasticity of the paper sheet rarely affects the processing of the machine, and therefore it is not necessary to measure the elasticity of the individual paper sheet.

[0003]

However, there has been an increasing demand for high-speed processing in sorting various kinds of paper sheets including paper composite articles such as mails, and the machine has been adapted to high-speed processing. In this case, since the sheet with weak elasticity has a slow bending restoring property, there is a problem that, for example, the leading end of the next sheet hits the unrecovered end of the sheet with weak elasticity at the time of stacking and causes a jam. Has arisen.

SUMMARY OF THE INVENTION An object of the present invention is to detect and sort a sheet having a weak bending resilience to prevent a trouble that occurs when the simultaneous conveyance processing of various kinds of sheets is accelerated. An object of the present invention is to provide a mechanism for measuring the bending resilience of paper sheets.

[0005]

According to the present invention, there is provided a paper sheet bending resilience measuring mechanism comprising: first conveying means for confining and conveying a paper sheet on a predetermined path; A second transport unit that has an entrance on an extension of the transport path and transports the paper sheet in a direction different from the direction of the first transport path, and free movement in a direction orthogonal to the traveling direction of the paper sheet. Freely formed between the first transport means and the second transport means, the paper sheets can enter the second transport means by the inertia of the movement by the first transport means without being restrained. A predetermined position for detecting a trajectory in which the free end of the paper sheet moves within the free space when the leading end of the paper sheet is changed in traveling direction by the second transport means. To determine the bending resilience of the paper sheet by the operation of the end trajectory detecting means disposed in the It includes a stage, a.

[0006] The conveying means may be two opposing belts for holding paper sheets, and the trailing end detecting means may be an optical sensor.

[0007] The paper sheets may be mail.

[0008] When a sheet such as a mail passes through a bent route, the difference in the passage path at the end of the sheet caused by the strength of the elasticity of the sheet is determined by the ON / OFF of the sheet position detecting sensor.
By detecting the OFF state, the strength of the elasticity of the paper sheet can be determined. This makes it possible to take measures to prevent a failure from occurring in a subsequent process.

[0009]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an outline view of a postal matter bending resilience measuring mechanism according to an embodiment of the present invention, and FIG.
FIG. 2B is a top view, FIG. 2B is a side view of the detection sensor of FIG. 1A as viewed in the direction of the arrow AA, and FIG. 5A is a top view showing the trajectory of the end of the postal matter, FIG. 6A is a case where the elasticity of the postal matter is strong, and FIG. In the drawing, reference numeral 1 denotes a conveyance path, 2 denotes a first roller, 3 denotes a second roller, 4 denotes a third roller, 5 denotes a postal matter position detection sensor,
6 is a postal matter, 6a is a postal matter with strong bending resilience, 6b is a postal matter with weak bending resilience, 6c and 6d are ends of the postal matter, 7
Is free space, 8 is the first belt, 9 is the second belt,
Reference numeral 10 denotes a third belt, 11 denotes a support plate, 11a denotes a transfer surface of the support plate, 11b denotes a through hole provided in the support plate, and 12 denotes a mounting plate for a mail position detecting sensor.

The mail 6 is transported along the transport path 1 by the support plate 11.
Is transported while being sandwiched between two belts, a first belt 8 and a second belt 9, standing upright on the transport surface 11 a, and the second belt is wound up by the first roller 2 and mail The object continues to advance by inertia while being free, and the third roller 4 is again fed from the second roller 3 at the position of the third roller 4.
Between the first belt 8 and the first belt 8 and the conveyance direction is changed.

A free space 7 in which the mail 6 is not restrained by the first belt 8, the second belt 9, and the third belt 10.
Is formed, and the postal matter which has been free and has advanced in the free space 7 by inertia is again caught by the first belt 8 and the third belt 10 at the position of the third roller 4 and has advanced. As the direction is changed, the free end is swung to move in the new direction of travel due to the elasticity of the mailpiece.

In this case, as shown in FIG. 2, when the bending resilience state of the mail piece 6a having high elasticity and the mail piece 6b having weak elasticity are compared, the mail piece 6a is swung faster in the changed traveling direction. Therefore, depending on the elasticity of the mail, there is a difference in the route at the end of the mail when passing through the free space 7, and the end of the mail 6 a having the strong elasticity is more than the free space 7. 1 passes on the side close to the roller 2.

Therefore, in the free space 7, the postal matter detecting sensor 5 is placed on a passage along which the end of the highly elastic postal matter 6a having the minimum elasticity required for the subsequent processing of the postal matter moves. If the through-hole 11b is arranged at a fixed angle so that the sensor axis passes through the support plate 11, the postal matter 6a with high elasticity is measured by the postal matter detection sensor 5, and the elasticity with anxiety as an obstacle is weak. The mail 6b is not measured.

Thus, the strength of the mail can be determined only by ON / OFF of the mail position detecting sensor 5, and the mail having a weak elasticity, which is an obstacle in the subsequent process, can be identified. By transferring to a system or performing processing for improving elasticity, it is possible to prevent occurrence of a failure in the processing machine.

In this embodiment, the mechanism for measuring the bending resilience in the process of processing a postal matter has been described. However, the object of the measuring mechanism for the bending resilience of paper sheets of the present invention is not limited to mail. For example, the present invention can be widely applied to the measurement of bending resilience in a mixing process of a plurality of paper sheets having different states, such as measurement of a so-called waist strength of a circulation bill.

[0016]

As described above, according to the present invention, in a high-speed processing machine, a failure is prevented for a sheet such as a postal matter having a weak bending restoring property which may cause a failure. The function of determining the degree of elasticity for performing some processing can be provided by a simple mechanism, thereby obtaining an effect of preventing a failure and improving the operation rate of the processing machine.

The reason for this is that the strength of the elasticity affecting the bending resilience of paper sheets such as mail can be continuously determined with a very simple structure of ON / OFF of the sensor.

[Brief description of the drawings]

FIG. 1 is an external view of a postal mail bending resilience measuring mechanism according to an embodiment of the present invention. (A) is a top view. FIG. 2B is a side view of the detection sensor of FIG.

2 is a top view showing the trajectory of the end of the postal matter when the postal matter having different restorability passes through the bending restorability measurement mechanism of FIG. 1; (A) is a case where the elasticity of the mail is strong.
(B) is a case where the elasticity of the mail is weak.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyance path 2 1st roller 3 2nd roller 4 3rd roller 5 Mail position detection sensor 6 Mail 6a Mail with strong bending restoration 6b Mail with weak bending restoration 6c, 6d End 7 Free space 8 First belt 9 Second belt 10 Third belt 11 Support plate 11a Conveying surface of support plate 11b Through-hole of support plate 12 Sensor mounting plate for postal position detection

Claims (4)

(57) [Claims] A first conveyance unit for confining and conveying a sheet on a predetermined path; and an entrance on an extension of a conveyance path of the first conveyance unit, wherein the first conveyance path is provided. A second transport unit that transports the paper sheet in a direction different from the direction of the paper sheet; and a first transport unit that does not restrict free movement in a direction orthogonal to the traveling direction of the paper sheet. A free space formed between the first transport means and the second transport means, which can enter the second transport means by the inertia of the movement of the paper sheet; When the traveling direction is changed by the second transport means, a trailing end trajectory arranged at a predetermined position to detect a trajectory of a free end of the paper sheet moving in the free space portion Detecting means for determining the bending resilience of the sheet by the operation of the end track detecting means. Bending resilience measuring mechanism of the paper sheet, characterized in that it comprises a means. 2. The apparatus according to claim 2, wherein said conveying means holds said paper sheet.
The paper sheet bending resilience measuring mechanism according to claim 1, which is a belt facing the book. 3. The paper sheet bending resilience measuring mechanism according to claim 1, wherein said end trajectory detecting means is an optical sensor. 4. The paper sheet bending resilience measuring mechanism according to claim 1, wherein the paper sheet is a postal matter.