JP2665282B2 - Media feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medium feeding device suitable for conveying a relatively thick medium such as a card or a passbook.

[0002]

2. Description of the Related Art One of media feeding apparatuses for feeding a medium such as a card or a passbook is provided with a pair of medium feeding rollers for nipping and conveying the medium. The feed roller pair includes a drive roller driven by the drive motor, it is made of a driven roller which rotates following thereto. Since these media are subjected to a reading operation by a magnetic head and a writing operation by a print head, they need to be conveyed while keeping their posture in the conveying direction constant. For this purpose, guide members for guiding both side edges of the medium are provided in the medium transport path along the medium feeding direction. The guide member for guiding the medium is disposed on both sides in the axial direction of the feed roller pair, and includes a fixed guide member and a movable guide member for pressing the medium against the fixed guide member, and rotatably supports the roller. Between the rollers and the frame. The movable guide member is constituted by a leaf spring alone or a guide plate urged by a spring.

[0003]

A medium feeder which is provided in an automatic transaction machine such as a CD or an ATM and conveys a card or a passbook is required to be as small as possible. One solution to this technical problem is to make the components smaller, but this has limitations.

Accordingly, an object of the present invention is to provide a medium feeding device in which the guide member for guiding one side edge of the medium is eliminated and the space of the medium conveying path is reduced, thereby reducing the size of the apparatus. is there.

[0005]

According to the present invention, there is provided a medium feeding device which is disposed on a conveyance path of a medium such as a card and a passbook.
A media feeder including a feed roller pair for nipping and transporting a medium, wherein one of the feed roller pairs is a flanged roller having a flange for guiding one side edge of the medium on an inner surface , Place the medium on the inner edge of the flange.
Forming a slant guide that guides the body inside the flange
In addition, the present invention is characterized in that a roller pair having the other roller facing the flanged roller is provided.

[0006]

The medium held between the feed roller pair is guided by an inclined guide formed on the inner edge of the flange of the flanged roller.
To the inside of the flange, and is conveyed while being guided on one side edge by the inside surface .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

In FIG. 1, reference numeral 1 denotes a card as a medium. The feed path of the card 1 is provided with pairs of feed rollers 2 and 3 along one side edge thereof. As shown also in FIG. 2, the feed roller pair 2 is disposed so as to face a drive roller 6 fixedly supported on a drive shaft 5 rotatably supported on an immovable side plate 4 and facing the drive roller 6. And a flanged roller 7. A drive gear 5a rotatably coupled to a drive motor (not shown) is fixed to the drive shaft 5.

The drive roller 6 is formed of an elastic material such as hard rubber having a friction surface sufficient to feed the card 1.

The flanged roller 7 is rotatably supported on the side plate 4 and is fixedly supported by a support shaft 9 urged in a direction approaching the drive shaft 5. The flanged roller 7 includes a roller body 7a for holding the medium 1 with the drive roller 6, and a flange 7b formed substantially integrally with an end of the roller body. This flange 7b
Is brought into contact with the drive shaft 5 by an urging force acting on the support shaft 9, and the peripheral surface of the roller body 7 a is
A gap is formed between the rollers such that the gap is slightly smaller than the thickness of the medium 1 with respect to the peripheral surface of the medium 1. That is, when the medium 1 does not exist between the driving roller 6 and the roller body 7a, the rollers of the feed roller pair 2 do not abut each other. The roller body 7a presses the card 1 against the drive roller 6, and may be formed integrally with the flange 7b, or may have an elastic layer formed on the peripheral surface thereof.

The inner edge of the flange 7b on the roller body 7a side
Become edge is formed in a chamfered taper portion 7c.

As shown in FIG. 2, the support shaft 9 located between the flange 7b and the side plate 4 has an extensible spring 1
0 is wound, and this spring urges the support shaft 9 rightward in the figure. The flange 7b urged by the spring 10 pushes the medium 1 held between the pair of rollers 2 on the inner surface 7d to the right in the drawing. In FIG. 2, the right side edge (not shown) of the medium 2 is pressed against a fixed reference guide member, and is conveyed based on the reference guide member.

In the above description, the support shaft 9 is movably supported by the side plate 4. However, if the flanged roller 7 is keyed to the support shaft 9, the support shaft 9 is attached to the side plate.
It may be supported so that it can not be displaced in the axial direction . In any case, the flange 7b urges the medium 1 rightward in the figure. When the side edge (not shown) of the card 1 is urged toward the side plate 4 by urging means (not shown), the spring 10 is unnecessary, and the flanged roller 7 connects the flange 7b to the side plate 4. 4 can be arranged at a position closer thereto.

The construction of the feed roller pair 3 is as follows.
Since the configuration is the same as that described above, its description is omitted.

An embodiment configured as described above will be described with reference to FIGS. In the feed roller pair 2 in a state where the card 1 is not clamped, the flange 7b abuts on the drive shaft 5 to separate the peripheral surface of the roller body 7a from the drive roller 6, so that the body 7a It is not completely synchronized with the rotation, but is rotated according to the pressing force of the flange 7b. When the medium is not present, the roller 6 and the roller body 7
Since a is separated from each other, deformation of each peripheral surface is prevented. When the card is sent to the card transport path,
The card 1 is started to be fed while one side of the card 1 is held between the driving roller 6 and the roller body 7a. At this time, the card 1 is sent while its transport position is regulated with one side edge 1a pressed against the inner side surface 7d of the flange 7b.

That is, the flange 7b functions as a guide member for guiding one side edge 1a of the card 1. In this case, the flange 7b that guides one side edge 1a of the card rotates together with the roller body 7a, and thus guides the card without being loaded on the conveyed card.

The flange 7b has a roller body 7a.
The tapered portion 7c is formed on the inner edge of the side , so that even if the card 1 is slightly shifted when fed into the feed roller pair 2, the card 1 follows the tapered portion 7c.
After being advanced toward the inside of the flange 7c, it is attracted by the roller pair and is clamped. That is, the tapered portion 7c of the flange 7b has a function of correcting the position in the width direction of the medium and holding the medium between the roller pairs as an inclined guide portion .

Next, another embodiment of the present invention will be described with reference to FIG. In the feed roller pair 20 shown in this embodiment, a drive roller is selected as a roller provided with a flange. A roller 60 with a flange is fixedly supported on the drive shaft 5. The flanged roller 60 includes a roller body 60a and a flange 60b substantially integrally formed at an end of the roller body 60a .
A tapered portion 60c serving as an inclined guide portion is formed on the inner edge of the flange 60b.

The roller main body 60a has an elastic layer made of hard rubber or the like formed around the boss united with the flange 60b on the outermost periphery thereof.

A driven roller 70, which is the other roller of the feed roller pair 20, is supported on a support shaft 9 rotatably supported on the side plate 4. The support shaft 9 is urged in a direction approaching the drive shaft 5, and its peripheral surface is
b. Since the flange 60b has a spacer function, the peripheral surface of the driven roller 70 is separated from the peripheral surface of the roller main body 60a. The distance between the two rollers is, of course, smaller than the thickness of the medium to be conveyed.

The card 1 has one side edge 1a at its flange 6
Being guided by the inner surface 60d = 0b, it is conveyed by being guided by the guide member (not shown) the other side edge. Even if the position of the card 1 in the width direction when the card 1 is fed into the feed roller pair 20 is slightly shifted, the card is not displaced by the tapered portion 60 of the flange 60b.
c and is drawn between the rollers located inside the flange 60b .

In the above description, the flanges of the flanged rollers are brought into direct contact with the support shafts of the other rollers to separate the rollers from each other. It includes a cylindrical body and the like fitted on the support shaft of the roller.

[0023]

As described above, according to the present invention, one of the pair of feed rollers for nipping and transporting a medium is constituted by a flanged roller, and has a function of guiding the side edge of the medium to the flange. Because of this, it is not necessary to provide a fixed guide member for guiding the medium, and the space occupied by the medium passage can be reduced, and as a result, the medium feeding device can be configured to be small. Further, by causing the flange to abut on the support shaft of the other roller to separate the rollers, deformation of the roller peripheral surface can be avoided, and the medium feeding operation can be stably maintained for a long time. In addition, media is applied to the inner edge of the flange.
Since the inclined guide part called inside the flange is formed,
When the media enters between the roller pair,
Even if it is slightly displaced, it is guided inside the flange by the inclined guide part
In rare cases, one side edge of the medium is securely guided by the inner surface of the flange.
Wear.

[Brief description of the drawings]

FIG. 1 is a perspective view of a medium feeding device according to an embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a front view showing another embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Medium 2 ... Feed roller pair 4 ... Side plate 5 ... Drive shaft 6 ... Drive roller 7 ... Roller with a flange 7a ... Roller body 7b ... Flange 7c ...・ Inclination guide part (taper part) 7d ・ ・ ・ Inner surface 9 ・ ・ ・ Support shaft 20 ・ ・ ・ Feed roller pair 60 ・ ・ ・ Flanged roller 60a ・ ・ ・ Roller body 60b ・ ・ ・ Flange 60c ・ ・ ・ Inclination Guide part (taper part) 60d ... inner surface

Claims (2)

(57) [Claims] 1. A medium feeding device provided in a conveyance path of a medium such as a card, a passbook, and the like, including a pair of feed rollers for nipping and conveying the medium, wherein one of the feed roller pairs is provided. A flanged roller having a flange that guides one side edge of the medium on the inner surface, the inside of the flange
Inclined guide that guides the medium inside the flange at the edge
A medium feeding device comprising: a roller pair having a roller portion formed by forming a flange portion and the other roller facing the flanged roller. 2. A medium feeding device which is disposed in a conveyance path of a medium such as a card and a passbook and includes a pair of feed rollers for holding and conveying the medium, wherein one of the pair of feed rollers is provided. Is a roller with a flange having a flange for guiding one side edge of the medium on the inner side, the inner edge of the flange
An inclined guide for guiding the medium into the inside of the flange.
Formed and abutting the flange on the support shaft of the other roller to dispose the other roller with the peripheral surfaces of the flanged roller and the other roller separated by a gap smaller than the thickness of the medium. Characteristic medium feeder.