KR20070050350A - Paper sheet take-out apparatus - Google Patents

Abstract

The paper sheet takeout apparatus is provided with a plurality of takeout rollers 11a and 11b which rotate in contact with the postal matter supplied to the withdrawal position. The take-out roller has a substantially cylindrical core member 31 and a substantially cylindrical roller portion 30 wound outside the core member. The roller portion 30 is formed by closely stacking a plurality of circular rubber rings 32 in the axial direction.

Paper sheet taking out device, mail, core member, roller part, rubber ring, taking out roller

Description

PAPER SHEET TAKE-OUT APPARATUS}

1 is a plan view showing a general configuration of a paper sheet extracting apparatus according to an embodiment of the present invention.

2 is a front view of the drawing device of FIG. 1;

Fig. 3 is a partially enlarged view of the drawing roller incorporated in the drawing device of Fig. 1 according to the first embodiment of the present invention.

4 is a view showing the operation of the take-out roller of FIG.

FIG. 5 is a graph showing the characteristics of the drawing roller of FIG. 3; FIG.

6 is an external view of a take-out roller according to a second embodiment of the present invention.

Fig. 7 is a graph showing the characteristics of the drawing roller of Fig. 6;

Fig. 8 is a sectional view of the drawing roller according to the third embodiment of the present invention.

Fig. 9 is a graph showing the characteristics of the drawing roller of Fig. 8;

<Explanation of symbols for the main parts of the drawings>

1: paper sheet taking out device

2: mounting base

3: backup

4: downstream floor belt

5: pulley

6, 8: motor

7: upstream floor belt

11: first pickup roller

12: second pickup roller

13: swing arm

14: timing belt

[Document 1] Japanese Patent Application Publication No. 2005-145671

The present invention relates to a paper sheet extracting apparatus for extracting a paper sheet fed in an upright state in the horizontal direction.

By driving the backup plate and the plurality of floor belts to feed the paper sheet to the withdrawal position at one end, the paper sheet set is moved in an upright position perpendicular to the paper sheet surface, and the withdrawal roller contacts the paper sheet supplied to the withdrawal position. There is a known conventional paper sheet taking out device which pulls out the supplied paper sheet in the horizontal direction by rotating the drawing roller (for example, Japanese Patent Application Laid-Open No. 2005-145671).

The paper sheet does not necessarily have to be fed to the withdrawal position in an upright position in the vertical direction. Thus, in the apparatus, the auxiliary roller provided at the withdrawal position detects the inclination of the paper sheet, and the drive of the floor belt is controlled based on the result of the detection so that the paper sheet is straight in the vertical direction at the withdrawal position. .

A drawing roller whose vertical axis extends in contact with the surface of the paper sheet straightening in the vertical direction is positioned at the drawing position. The periphery of the roller is also rotated along the vertically extending paper sheet surface. Thus, if the paper supplied to the withdrawal position is slightly inclined, the periphery of the takeout roller is not in sufficient contact with the surface of the paper sheet, and the edge of the takeout roller partially comes into contact with the paper sheet surface. If the paper sheet is taken out in this state, the frictional force of the peripheral portion of the take-out roller against the paper sheet surface is insufficient, and the peripheral portion of the take-out roller slides on the paper sheet surface and the paper sheet take-out speed becomes unstable.

It is an object of the present invention to provide a paper sheet takeout apparatus which can provide a sufficient friction force to a paper sheet supplied to a takeout position and can stably take out a paper sheet.

In order to achieve the above object, the paper sheet extracting apparatus according to an embodiment of the present invention is to move the paper sheet supplied in an upright state in a direction perpendicular to the paper sheet surface and supply to supply the paper sheet to the withdrawal position at one end And a mechanism and at least one take-out roller that contacts the paper sheet fed at its periphery and is fed to the withdrawal position and rotates about a vertically extending rotational axis to apply friction to the paper sheet and withdraws the paper sheet in a substantially horizontal direction. At least the periphery of the take-out roller is divided into several parts in the direction of the rotation axis.

Additional objects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and advantages of the present invention can be realized and obtained by the embodiments and combinations thereof specifically hereinafter indicated.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the general description above and the detailed description of the following examples, serve to explain the principles of the invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view of a paper sheet takeout device 1 (hereinafter, simply referred to as a takeout device 1) according to an embodiment of the present invention. 2 is a front view of the drawing device 1. The take-out device 1 is designed to withdraw a plurality of mails (P) (paper sheets) set in bulk one by one and feed them to a processor in a subsequent step.

The take-out device 1 has a flat mounting base 2 for mounting in a standing state a plurality of postal matters P which are collectively placed by contacting the lower end side. The backup plate 3 is provided at the right end of the mounting base 2 in the drawing. The backup plate 3 is provided in an upright state substantially perpendicular to the mounting base 2.

The backup plate 3 compresses the postal matter P in the direction perpendicular to the surface of the postal matter (in the direction of the arrow T1 in FIG. 1) and supplies all the postal matter P in the direction of the arrow T1. As a result, the postal matter at the front end in the feeding direction is supplied to the withdrawal position at the left end of the mounting base 2 in the drawing.

The downstream floor belt 4 is provided close to the withdrawal position. The downstream floor belts 4 are two endless belts aligned and separated in parallel with each other in a direction substantially perpendicular to the postal matter P supply direction (the direction of arrow T1) (the direction of arrow T2 in FIG. 1). (4a, 4b) is provided. The belts 4a and 4b are wound and extended over the plurality of pulleys 5 and are partially exposed from the mounting base 2 towards the lower end side of the postal matter P. The downstream floor belt 4 having two belts 4a and 4b is driven by a motor 6 so that the portion of the belts 4a and 4b exposed upward from the mounting base 2 is the lower end of the postal matter P. It comes into contact with the side and transfers the mail P to the withdrawal position.

An upstream endless floor belt 7 is provided between two belts 4a and 4b of the downstream floor belt 4. The upstream floor belt 7 is positioned to have a portion wound and extended over the plurality of pulleys 5 and slightly exposed upward from the mounting base 2. The upstream floor belt 7 is driven by the motor 8 and is moved in the direction in which the exposed part conveys the postal matter P toward the withdrawal position.

The downstream floor belt 4 protrudes upward from the upstream floor belt 7, and the postal matter P conveyed by the upstream floor belt 7 is transferred to the downstream floor belt 4 and thereby transported. do.

Although the exposed portion of the downstream floor belt 4 can only transport a few postal items close to the withdrawal position among the postal matter P mounted on the mounting base 2, the exposed portion of the upstream floor belt 7 The portion is in contact with the bottom side of the post, except for some posts close to the withdrawal position among all posts P mounted on the mounting base 2. That is, the postal matter close to the backup plate 3 is conveyed by the upstream floor belt 7 and transferred to the downstream floor belt 4 and supplied to the withdrawal position.

The backup plate 3 is slidably fixed to the shaft 9 extending along the postal matter P conveyance direction, and the lower end portion is connected to the upstream floor belt 7. When the upstream floor belt 7 is moved, the backup plate 3 is moved along the shaft 9 in the postal matter P feeding direction. That is, the backup plate 3 is driven by the motor 8 and moved to the withdrawal position at the same speed as the upstream floor belt 7.

The above-mentioned backing plate 3, the downstream floor belt 4, the upstream floor belt 7 and the motors 6 and 8 for driving them serve as a supply mechanism of the present invention.

The first and second pickup rollers 11 and 12 are provided at the position where the postal matter P is withdrawn. The first pick-up roller 11 is provided individually and independently on the lower withdrawal roller 11a and the lower withdrawal roller 11a in contact with an area proximate to the lower end side surface of the postal matter P supplied to the withdrawal position. The upper drawing roller 11b which rotates and contacts the area | region adjacent to the upper end part of the mail P is provided.

The rollers 11a and 11b serve as the take-out rollers of the present invention and are positioned at positions where the rotation axis thereof extends in the vertical direction, so that the periphery is rotated by contacting the surface of the postal matter P. FIG. By rotating the take-out rollers 11a and 11b in a predetermined direction (in the direction of the arrow in FIG. 1), the mail P supplied to the withdrawal position is substantially perpendicular along the mail surface and is perpendicular to the feed direction (FIG. 1). In the direction of arrow T2, hereinafter referred to as a drawing direction, i.e., in the upper direction of FIG.

The axis of rotation of the upper lead-out roller 11b is rotatably fixed to the swing distal end of the swing arm 13. The proximal end of the swing arm 13 is rotatably provided around an axis of rotation fixed to an unillustrated frame of the takeout device 1, which axis of rotation is clockwise in FIG. 1 by a spring, not shown. Will be powered. That is, the swing arm 13 acts to press the upper lead-out roller 11b fixed to the distal end to the postal matter P supplied to the lead-out position at a constant pressure.

The upper draw roller 11b is connected to the motor 15 via a plurality of pulleys and timing belts 14. In other words, when the motor 15 is rotated in a predetermined direction, the upper drawing roller 11b is rotated in the direction in which the postal matter P is drawn out.

Like the upstream take-out roller 11b, the downstream take-out roller 11a is rotatably fixed to the distal end of the vibrating arm 13 and is positioned to be pressed against the surface of the postal matter P at a predetermined pressure. The downstream take-out roller 11a is also rotated by the motor 15 in the direction in which the postal matter P is taken out. That is, the downstream drawer roller 11a is provided to be movable independently of the upstream drawer roller 11b.

The second pick-up roller 12 having the same structure as the first pick-up roller 11 at a position isolated on the downstream side of the first pick-up roller 11 along the direction in which the mail P supplied to the take-out position is taken out. Is provided. The second pick-up roller 12 is rotated separately and independently provided and rotated on the lower withdrawal roller 12a and the lower withdrawal roller 12a in contact with an area proximate to the lower end of the postal matter P supplied to the withdrawal position. The upper drawing roller 11b which contacts the area | region adjacent to the upper end part of the postal matter P is provided. The rollers 12a and 12b serve as the drawing rollers of the present invention, and are positioned at positions where the rotational axis extends in the vertical direction so as to rotate and contact the surface of the postal matter P by its periphery.

The support roller 16 for supporting the postal matter P is provided in an area adjacent to the rear end portion in the direction in which the postal matter P withdrawn is drawn out from the withdrawal position. The support roller 16 is rotatably fixed to the oscillating distal end of the arm 17. The portion adjacent the base end of the arm 17 is rotatably fixed to an unshown frame of the take out device, and the arm 17 is powered counterclockwise in FIG. 1 by the spring 18. That is, the support roller 16 acts to straighten the postal matter P supplied to the withdrawal position by being powered by the spring 18 in the direction in which the postal matter P is pressed.

Further, a feeding roller 21 and a reverse roller 22 are provided on the downstream side in the direction in which the postal matter P supplied to the take-out position is taken out. The feeding roller 21 is provided at a position where the pick-up roller 11 rotates to contact and rotate the surface of the postal matter P in contact with the postal matter P supplied to the withdrawal position, and the postal matter P is rotated backwardly. By holding it with 22, it rotates with a reverse rotation roller, and feeds the postal matter P to a drawing direction. The reverse rotation roller 22 loads the postal matter P in the direction opposite to the drawing direction (in the direction of the arrow in the drawing) and picks up the second and subsequent postal matters drawn out together with the postal matter P fed by the feeding roller 21. It acts as a separation.

In the operation of taking out the postal matter P in the take-out apparatus 1 having the above-described configuration, the plurality of postal matters P placed upright on the mounting base 2 are provided with the backup plate 3 and the floor belts 4 and 7. When moved to the withdrawal position by the mail, the postal matter at the front end in the feeding direction is pressed by the takeout rollers 11a, 11b, 12a, 12b of the two pairs of pickup rollers 11, 12. At this time, the postal matter at the front end in the feeding direction is hardly supplied to the vertical plane parallel to the rotation axis of the takeout rollers 11a, 11b, 12a, 12b in an upright state, and is supplied to the withdrawal position in at least slightly inclined state. That is, the postal matter P supplied to the take-out position makes contact with the periphery of the take-out rollers 11a, 11b, 12a, 12b in a slightly inclined state.

Thus, if the take-out rollers 11a, 11b, 12a, 12b are formed of cylindrical solid rubber, the periphery of each roller is not in sufficient contact with the surface of the postal matter P at the withdrawal position, and only the edge part partially contacts the surface of the postal matter. Contact, and sufficient frictional force is not applied to the postal matter P. FIG. This causes slippage between the postal matter P and the take-out rollers 11a, 11b, 12a, 12b, and the spacing between withdrawing the postal matter P is uneven and the withdrawal speed is reduced.

In order to solve the above problem, the present invention uses the take-out rollers 11a, 11b, 12a, 12b having different structures.

Hereinafter, the first pickup roller 11 will be described with reference to FIG. 3. The second pickup roller 12 has the same structure, and thus detailed description of the second pickup roller is omitted. The pickup roller 11 has a lower draw roller 11a and an upper draw roller 11b. These take-out rollers 11a and 11b have the same structure, and therefore only one of these rollers will be described. Other rollers are given the same reference numerals and detailed description thereof will be omitted.

The upper drawing roller 11b (hereinafter referred to simply as the drawing roller 11b) according to the first embodiment of the present invention is a substantially cylindrical roller portion formed by closely stacking a plurality of circular rubber rings 32 in the axial direction. It is comprised by joining 30 to the periphery of the substantially cylindrical core member 31 fixed to the rotating shaft. In this embodiment, the roller portion 30 having a width of 15 mm in the axial direction has four equally sized rubber rings 32 having a thickness of 3.75 mm in the axial direction, an outer diameter of 60 mm and a thickness of 7 mm in the radial direction. It is comprised by laminating close to an axial direction. In this embodiment, each rubber ring 32 is formed of the same rubber material as Sumitomo rubber EM601 (EPDM) with a hardness of A60 / S.

The thickness of the rubber ring 32 in the axial direction is designed to be 3.75 mm in this embodiment as described above, but preferably 2 mm to 4 mm. If the thickness of the rubber ring 32 is set to 2 mm or less, sufficient mechanical strength will not be achieved when the rubber is elastically deformed, for example, and the ring may be damaged by bending. If the thickness of the rubber ring 32 is set to 4 mm or more, satisfactory elastic deformation is not achieved and the effects of the present invention described below are not achieved.

That is, in this embodiment, it is important to design the roller portion 30 of the drawing roller 11b so that the thickness of one rubber ring 32 is 2 mm to 4 mm in the axial direction, and the number of rubber rings is the roller portion ( 30) may optionally be changed depending on the thickness of the axial direction required. The outer diameter of the roller portion 30 can also be changed depending on the operating conditions. Furthermore, by adjusting the thickness of each rubber ring 32 in the radial direction, the elastic modulus of the roller portion 30 can be adjusted, and the characteristics of the take-out roller 11b depend on the type of postal matter P to be processed. can be changed.

Next, with reference to FIG. 4, the effect and function of the extraction roller 11b are demonstrated. The other take-out rollers 11a, 12a, 12b have the same function, and thus detailed descriptions of the effects and functions of these rollers are omitted.

When the postal matter P supplied to the withdrawal position is supplied in a state inclined to the vertical plane as described above, the roller portion 30 of the takeout roller 11b elastically deforms in the state shown in the drawing, for example, It is located after the position of (P). In particular, in Fig. 4, the upper end side of the postal matter P which is separated from the mounting base 2 and supplied to the withdrawal position is inclined with respect to the withdrawal roller 11b. Here, the take-out roller 11a is omitted, and the size of the postal matter P is shown smaller than the actual size.

That is, when the postal matter P is inclined in the state indicated by the broken line in the state indicated by the broken line in FIG. 4, it is far from the core member 31 of each rubber ring 32 constituting the roller 30. The area proximate to the periphery is curved downward, and the edge of each rubber ring 32 is elastically deformed to contact the surface of the postal matter P. That is, the edge of each rubber ring 32 is pressed to contact the surface of the postal matter P, providing an edge effect at some point on the surface of the postal matter P. FIG.

Thus, as compared with the conventional case in which the roller portion 30 is not divided into several rubber rings, frictional force can be applied to the inclined postal matter P at some points, and relatively large frictional force can be applied to the inclined postal matter P. Can be. That is, by employing the take-out roller 11b of the present embodiment, slippage between the periphery of the roller portion 30 and the surface of the inclined postal matter P can be prevented, and the postal matter P can be stably drawn out. The withdrawal speed can be increased.

In order to prove the effect of the take-out roller 11b of the first embodiment, the inclination angle with respect to the periphery of the take-out roller 11b is changed to supply the postal matter P, and at each inclination angle, the postal matter P and the takeout roller ( The dynamic friction coefficient between 11b) was investigated. Fig. 5 shows a result of comparison with a conventional drawing roller in which the roller portion is not divided. At this time, bond paper (bond paper) used for the envelope is used as the postal matter (P).

As shown in Fig. 5, when the inclination angle of the postal matter P with respect to the takeout roller is 0 °, the conventional takeout roller that is not divided in the roller portion has a higher postal matter P than the takeout roller 11b of this embodiment. Dynamic coefficient of friction for. This is considered to be caused by the fact that the surface of the postal matter P is in sufficient contact with the periphery of the take-out roller. However, the surface of the postal matter P is not in contact with a sufficient peripheral region of the take-out roller.

On the contrary, when the inclination angle of the postal matter P with respect to the take-out roller is larger than 1 °, the dynamic friction coefficient of the take-out roller 11b of this embodiment is larger than that of the conventional take-out roller. Also, when the take-out roller 11b of this embodiment is used, the dynamic friction coefficient is generally increased in the range of 0 ° to 6 ° inclination angle. This is caused by the edge effect acting on some points on the postal matter P as described in FIG.

That is, by using the take-out roller 11b of this embodiment, after the angle of the postal matter P supplied to the withdrawal position exceeds 1 °, in most cases, the frictional force applied to the postal matter P can be increased, and thus Sufficient friction can be applied to the postal matter P. FIG. Therefore, the slippage between the roller and the postal matter P, the uneven drawing pitch and the dropping of the drawing speed can be prevented.

In addition, paper sheets containing 140 mm x 90 mm postcards, C-5 size envelopes (229 mm x 162 mm) and 220 mm x 110 mm long envelopes are used, and the weight of the contents is varied between 2 g and 50 g. And a continuous mail withdrawal test was performed in the withdrawal apparatus described herein equipped with withdrawal rollers 11b (11a, 12a, 12b) by adjusting the rate of quantification of the paper sheet to an average of 25 g. The mail take-out speed was set at 3.6 m / s, and the take-off interval was set at a constant interval (38.2 K pass / h) of 110 mm. As a result, it was possible to reliably withdraw the postal matter P with an average withdrawal interval of 113.2 mm with an accuracy of standard deviation of 16 mm.

As described above, according to this embodiment, the plurality of rubber rings 32 are stacked to form the roller portions 30 of the respective drawing rollers 11a, 11b, 12a, and 12b, so that the drawing position in the inclined state Sufficient friction can be applied to the postal matter P supplied to the apparatus, slippage between the take-out roller and the postal matter P can be prevented, the postal taking-out interval can be stabilized, and the take-out speed caused by insufficient frictional force can be prevented. The reduction problem can be avoided.

Next, the withdrawal roller 40 according to the second embodiment of the present invention will be described with reference to FIG. Instead of the above-mentioned extraction rollers 11a, 11b, 12a, and 12b, the extraction roller 40 is incorporated in the extraction apparatus 1. The takeout roller 40 has the same structure and substantially the same function as the takeout rollers 11a, 11b, 12a, 12b except for the structure of the roller portion. Therefore, the same reference numerals are assigned to the parts having the same function, and thus detailed description thereof will be omitted.

As shown in Fig. 6, the drawing roller 40 has a roller portion 41 formed by laminating rubber rings 42 and 44 around the outer circumference of the core member 31. As shown in Figs. One rubber ring 42 is formed of a relatively hard rubber, functions as the second rubber ring of the present invention, and has a thickness of 3 mm in the axial direction. Except for the axial thickness, the ring 42 is formed of a rubber material and formed to have the same radial thickness and outer diameter as the rubber ring 32 of the take-out roller 11b of the first embodiment. The other rubber ring 44 is formed of a rubber material having a hardness of A60 / S, is softer than the rubber ring 42, functions as the first rubber ring of the present invention, and has the same axial direction as the rubber ring 42. Thickness (3 mm), outer diameter (60 mm) and radial thickness (7 mm).

The roller portion 41 of the lead-out roller 40 is formed by alternately stacking rubber rings 42 and 44 of the same size in the axial direction. More specifically, as shown in Fig. 6, the roller portion 41 is formed by alternately stacking three rubber rings 42 and two rubber rings 44, and the relatively hard rubber ring 42 is It is arrange | positioned at the both ends of the axial direction of the roller part 41. By laminating a total of five rubber rings 42 and 44 having the same thickness of 3 mm in the axial direction, a roller portion 41 having a thickness of 15 mm in the axial direction is constructed. By arranging the rubber rings 42 which are relatively hard at both ends in the axial direction, the wear resistance of the edge of the roller portion 41 which is easily worn is increased, and the service life of the drawing roller 40 can be extended.

As in the first embodiment, when the postal matter P contacts the rotary shaft of the take-out roller 40 in an inclined state, the rubber rings 42 and 44 are elastically deformed and at some points on the surface of the postal matter P. Pressurized to contact. Thus, by using the take-out roller 40 in this embodiment, the edge effect can also be achieved at some points on the surface of the postal matter P, and the same effect as in the first embodiment can be achieved.

In particular, according to the drawing roller 40 of this embodiment, since the thickness of one rubber ring is formed thin in the axial direction and the rubber ring 44 is formed of a rubber material that is softer than the rubber ring 32 of the first embodiment. , The extraction roller is elastically deformed more easily than the extraction roller 11b of the first embodiment. In addition, since the roller portion 41 is formed by alternately stacking rubber rings 42 and 44 having different hardness in the axial direction, the contact pressure acting on the postal matter P can be discontinuously formed in the axial direction. . Thus, the roller portion 41 can contact more areas on the surface of the postal matter P by slightly reducing the contact pressure in each contact area, and the contact pressure can be evenly distributed.

Further, in order to prove the effect of the take-out roller 40, the relationship between the postal matter P inclination angle and the dynamic friction coefficient under the same conditions as in the first embodiment was examined to achieve the result shown in FIG. Fig. 7 shows the characteristics of the extraction roller 11b of the first embodiment together with the characteristics of the conventional extraction roller that is not divided in the roller portion for comparison purposes.

As shown from the figure, the dynamic friction coefficient of the take-out roller 40 of this embodiment is determined by the take-out roller of the first embodiment when the inclination angle of the postal matter P with respect to the periphery of the roller is in the range of 0 ° to 1.5 °. Although somewhat smaller than 11b), the dynamic friction coefficient is greatly increased than the take-out roller 11b of the first embodiment when the inclination angle is increased. That is, the take-out roller 40 of this embodiment has a characteristic that a greater frictional force is applied to the post-album P than the take-out roller 11b of the first embodiment under the condition that the inclination angle of the postal matter P is relatively large (greater than 1.5 °). Has

As in the first embodiment, a continuous postal matter withdrawal test was performed in the withdrawal device 1 with the roller 40 under the same conditions as in the first embodiment. As a result, the postal matter P can be stably drawn out at an average drawing interval of 114.3 mm with an accuracy of a standard deviation of 13 mm.

As described above, according to the present embodiment, the same effect as that of the first embodiment can be achieved, and sufficient frictional force can be applied to the postal matter P supplied to the withdrawal position in an inclined state, and the postal matter P is It can be reliably withdrawn.

Next, the withdrawal roller 50 according to the third embodiment of the present invention will be described with reference to FIG. The take-out roller 50 has the same structure and substantially the same effect as the take-out rollers 11a, 11b, 12a, and 12b except for the structure of the roller portion. Therefore, the same reference numerals are given to the parts having the same function, and detailed description thereof will be omitted.

As shown in FIG. 8, the drawing roller 50 has a substantially cylindrical roller portion 51 wound around the periphery of the core member 31. The roller portion 51 is formed in a cylindrical shape, is formed of the same rubber material as the drawing roller 11b of the first embodiment, and is sized with a thickness of 15 mm in the axial direction and a thickness of 7 mm in the radial direction and an outer diameter of 60 mm. . The roller part 51 has four circular slits 52 (cutting parts) which divide the periphery at equal intervals (3 mm). The depth of each slit in the radial direction is set to half of the thickness of the roller portion 51, that is, 3.5 mm so as not to reach the core member 31.

When the postal matter P is pressed to contact the periphery of the take-out roller 50 in a state inclined to the rotational axis of the roller as in the second embodiment, the area divided by the slit 52 becomes Elastically deformed to contact the surface. Thus, by using the take-out roller 50 of this embodiment, the edge effect can be achieved at several points on the surface of the postal matter P and the same effect as that of the first embodiment can be achieved.

In particular, according to the drawing roller 50 of the present embodiment, by adjusting the depth and number of the slits 52 for dividing the peripheral portion of the roller portion 51, the effect and characteristics of the drawing roller 50 on the postal matter P are It may be selectively changed according to the type of the postal matter P to be processed.

Further, in order to prove the effect of the take-out roller 50, the relationship between the postal matter P inclination angle and the dynamic friction coefficient under the same conditions as in the first embodiment was investigated and the results shown in Fig. 9 were obtained. Fig. 9 shows the characteristics of the extraction roller 11b of the first embodiment together with the characteristics of the conventional extraction roller that is not divided in the roller portion for comparison purposes.

As shown from the figure, when using the take-out roller 50 of this embodiment, when the inclination angle of the postal matter P with respect to the periphery of the roller is in the range of 0 ° to 1.3 °, the dynamic friction coefficient is reduced to that of the first embodiment. Although slightly higher than the take-out roller 11b, the dynamic friction coefficient is somewhat lower than the take-out roller 11b of the first embodiment when the inclination angle is increased. However, the take-out roller 50 of this embodiment has a characteristic that a frictional force higher than that of the take-out roller 11b of the first embodiment is applied to the postal matter P under the condition that the inclination angle of the postal matter P exceeds 1.3 °.

As in the first embodiment, a continuous postal matter withdrawal test was performed in the withdrawal device 1 with the roller 50 under the same conditions as in the first embodiment. As a result, the postal matter P could be reliably withdrawn with an average withdrawal interval of 113.2 mm with an accuracy of 18 mm standard deviation.

As described above, according to the present embodiment, the same effect as that of the first embodiment can be achieved, and sufficient frictional force can be applied to the postal matter P supplied to the withdrawal position in an inclined state, and the postal matter P is It can be reliably withdrawn. Further, by adjusting the depth and number of slits dividing the periphery of the roller portion 51, the characteristics of the take-out roller 50 can be changed relatively easily, the characteristics of which are the type and apparatus of the postal matter P to be processed. Can be optionally changed according to the specifications of Further, the take-out roller 50 of this embodiment is formed by machining the shape of the roller portion 51, so that the number of parts can be reduced as compared with the first and second embodiments.

Additional advantages and modifications are readily accomplished to those skilled in the art. Accordingly, the invention in its broader aspects is not limited to the details and representative embodiments described and illustrated herein. Accordingly, various changes may be made within the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents.

For example, in the above-described embodiment, the take-out apparatus 1 having two pairs of pickup rollers 11 and 12 along the direction of withdrawing the postal matter P supplied to the withdrawal position is described. The number of the pick-up rollers and take-out rollers is not limited and can be selectively changed.

According to the present invention, it is possible to provide a sufficient friction force to the paper sheet supplied to the withdrawal position and to obtain the effect of stably pulling out the paper sheet.

Claims (8)

It is a paper sheet taking out device, A supply mechanism for moving the paper sheet supplied in an upright state at right angles to the paper sheet surface and supplying the paper sheet to the withdrawal position at one end thereof; A paper sheet fed to the withdrawal position and at least one withdrawal roller that contacts at its periphery and rotates about a vertically extending rotational axis to apply friction to the paper sheet and withdraws the paper sheet in a substantially horizontal direction, At least the periphery of the drawing roller is divided into several parts in the direction of the axis of rotation. 2. The drawing roller according to claim 1, wherein the take-out roller has a substantially cylindrical core member fixed to a rotating shaft, a substantially cylindrical roller portion formed of a rubber material and wound outside the core member, and the peripheral portion is divided into several parts in the axial direction. At least one circular slit is formed at the periphery of the roller portion. The paper sheet extracting apparatus according to claim 2, wherein the slit has a depth that does not reach the core member. 2. The pull-out roller according to claim 1, wherein the take-out roller has a substantially cylindrical core member, such as a rotating shaft, and a substantially cylindrical roller portion formed of a rubber material and wound on the outside of the core member, wherein the roller portion axially closes the plurality of circular rubber rings. Paper sheet taking out device which is formed by laminating. The paper sheet extracting apparatus according to claim 4, wherein the plurality of rubber rings are formed of the same rubber material and formed to have the same size. 6. The paper sheet extracting apparatus according to claim 5, wherein the axial thicknesses of the plurality of rubber rings are 2 mm to 4 mm. The paper of claim 4, wherein the plurality of rubber rings include a first rubber ring and a second rubber ring that is rigider than the first rubber ring, and the roller part is formed by alternately stacking the first rubber ring and the second rubber ring. Sheet takeout device. 8. The paper sheet extracting apparatus according to claim 7, wherein the rubber rings are stacked in an odd number and the second rubber rings are provided at both ends of the axial direction of the roller portion.

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