KR101408417B1 - Media clamping apparatus for media dispenser - Google Patents

Abstract

The present invention relates to a medium clamping device for a media dispenser. In the present invention, the clamp base 10 for supporting one side of the medium is provided. An arm rotation shaft 22 is rotatably mounted on the clamp base 10 and a clamp arm 20 is rotatably supported by the arm rotation shaft 22 by an elastic force. A fixture 40 is provided at the center of the arm rotation shaft 22. The fixture 40 is selectively hooked to the rear end of the clamp arm 20 in a state where the medium is clamped, thereby regulating the rotation of the clamp arm 20. The clamp 40 is hooked on the rear end of the clamp arm 20 when releasing the clamping of the medium, so that the clamp arm 20 is rotated in the clamping release direction. According to the present invention, since the clamp arm is prevented from being lifted upward by the clamping leg of the fixture in a state where the medium is clamped, the medium can be more stably clamped.

Media dispenser, media, clamping

Description

[0001] The present invention relates to a media clamping apparatus for a media dispenser,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a media dispenser, and more particularly, to a media clamping apparatus for a media dispenser configured to more reliably perform clamping of a medium when the medium is clamped in a bundled state.

FIG. 1 is a cross-sectional view of a main portion of a conventional media dispenser, and FIG. 2 is a perspective view of a conventional media clamp assembly. As shown in the drawing, a tray frame 100 having a rectangular parallelepiped shape is provided in the inside of the media dispenser. Inside the tray frame 100, a medium such as cash or banknotes is bundled and transported A clamp assembly 160 is provided. Accordingly, when the user receives the medium from the media dispenser, the clamp assembly 160 transfers the desired amount of the medium to the user.

The clamp assembly 160 installed inside the tray frame 100 includes a feed tray 162. At both ends of the conveyance tray 162, side walls 162 'are protruded at a predetermined height. The transfer tray 162 is movably supported on the tray frame 100. For this, a connection bracket 163 is provided at both ends of the conveyance tray 162. The connection bracket 163 is fastened to an inner member of a slide rail (not shown) of the tray frame 100. Of course, at the time of assembly, the connection bracket 163 is first attached to the inner member, and the transfer tray 162 is fastened to the connection bracket 163.

At both ends of the outer surface of the side wall 162 'of the conveyance tray 162, a magnet mounting hole 164 is provided. The magnet mounting portion 164 is a portion provided with a magnet for sensing the position of the transfer tray 162 in cooperation with a plurality of magnetic field sensors (not shown) provided in the tray frame 100.

A tray conveying motor 165 provides a driving force for the movement of the conveying tray 162. The tray transfer motor 165 is installed on the transfer tray 162. The output shaft of the tray conveying motor 165 is provided with a motor gear 165 'and the motor gear 165' is engaged with a rack interlocking gear 166 'coaxially installed on the conveying drive shaft 166 to transmit power . The conveying drive shaft 166 is rotatably supported at both ends of the side wall 162 'and is provided with a rack interlock gear 166' adjacent to the side wall 162 ', respectively. The rack interlocking gear 166 'is engaged with a rack (not shown) provided in the tray frame 100 to allow the feed tray 162 to linearly reciprocate with respect to the tray frame 100.

The transfer tray 162 is provided with a clamp base 168. The clamp base 168 supports one side of the laminated media bundle and is rotatably installed on the conveyance tray 162. The clamp base 168 is formed with a plurality of interference preventing slots 168 'in order to prevent interference with other parts during rotation. The plurality of interference prevention slots 168 'are formed in parallel starting from the tip of the clamp base 168.

The clamp base 168 is provided with an extension clamp 169. The extension clamp 169 protrudes slightly toward the clamp base 168. The extension clamp 169 is provided with an interference prevention slot 169 'in the same manner as the clamp base 168. The extension clamp 169 is movable back and forth along a guide shaft 170 provided at both ends of the clamp base 168. An elastic member 170 'is provided on the guide shaft 170 to push the extension clamp 169 toward the tip of the clamp base 168. The elastic member 170 'is a coil spring configured to enclose the outer circumferential surface of the guide shaft 170 and has one end supported by one side of the extension clamp 169 and one side of the clamp base 168. One side of the extension clamp 169 is designed to pass through the guide shaft 170 and can receive the elastic force of the elastic member 170 '.

On both sides of the rear end of the clamp base 168, connection arms 171 are provided. The connecting arm 171 is formed in a direction orthogonal to the surface of the clamp base 168 and faces the side wall 162 '. Supporting pieces 172 are provided on the clamp base 168 so as to face the connection arm 171 with a predetermined gap therebetween.

The clamp base 168 is provided with a medium sensor 173 for detecting a clamped medium. The media sensor 173 detects whether the medium is clamped, whether the medium has been delivered to the customer, and the like. The medium sensor 173 cooperates with the reflective member 184 'provided on the clamp arm 184 to be described below to perform a sensing operation.

A base rotation motor 175 for driving the clamp base 168 is provided on the conveyance tray 162. The driving force of the base rotation motor 175 is transmitted through a plurality of gears. A motor gear 175 'is provided on the output shaft of the base rotating motor 175 and a driving shaft 176 provided on the conveying tray 162 is provided with a first shaft gear 176 '. At both ends of the drive shaft 176, a second shaft gear 177 is further provided. The second shaft gear 177 is engaged with a connecting gear 178 provided on the conveyance tray 162 and the connecting gear 178 is provided on the side of the connecting arm 171 of the clamp base 168 And is engaged with the rotary gear 179.

The second shaft gear 177 and the connecting gear 178 are rotatably supported by the gear bracket 180. The gear bracket 180 is installed on the transfer tray 162. One side of the gear bracket 180 is extended to be positioned between the connecting arm 171 and the supporting piece 172. The other side of the gear bracket 180 also serves to support the rotation shaft of the base rotation motor 175. The gear brackets 180 are provided at both ends of the conveyance tray 162.

The rotary gear 179 is integrally installed on a gear shaft 179 'which is integrally operated with the connecting arm 171 and the supporting piece 172. That is, the connection arm 171, the support piece 172, the gear shaft 179 ', and the rotary gear 179 are integrally rotated. However, the gear shaft 179 'is rotatable about the gear bracket 180 and the side wall 162' of the transfer tray 162.

A clamp sensor 182 is provided on the transfer tray 162 adjacent to each of the connection arms 171 to control the rotation of the clamp base 168. A sensing piece 183 is provided on the gear shaft 179 'so as to be selectively positioned between the light emitting portion and the light receiving portion of the clamp sensor 182. Here, the clamp sensors 182 at both ends are installed on the conveyance tray 162 in the same direction, and the sensing piece 183 is extended in the extending direction . The clamp base 168 is normally and regularly rotated within a range of 90 degrees, and the position is alternately sensed by the clamp sensors 182 at both ends.

A clamp arm 184 is rotatably mounted on the clamp base 168. Both ends of the arm rotation shaft 185 fixed to the rear end of the clamp arm 184 are rotatably supported by the support bracket 185b of the clamp base 168. [

The clamp arm 184 is formed by, for example, branching into three halves as shown in the figure. The branched clamp arm 184 is configured not to overlap the interference-preventive slot 168 '. A reflective member 184 'is provided on the clamp arm 184 at a position corresponding to the medium sensor 173 of the clamp base 168. The reflective member 184 'reflects the light provided from the light emitting unit of the medium sensor 173 to the light receiving unit. Only one of the media sensors 173 is provided on the clamp base 168 due to the presence of the reflective member 184 '.

A driving force for rotating the clamp arm 184 is provided by an arm rotating motor 186 provided on the clamp base 168. [ The driving force of the arm rotating motor 186 is transmitted to the rotating shaft gear 185 'provided on the arm rotating shaft 185 through the motor gear 186' and the connecting gear 187. Therefore, the arm rotating shaft 185 rotates together with the clamp arm 184 by the driving force of the arm rotating motor 186.

The clamp arm 184 is provided with a push finger 192. The push finger 192 is formed into a curved surface so that its tip can exert a predetermined elastic force. The push finger 192 is configured so as not to overlap the interference prevention slot 168 'of the clamp base 168. In this embodiment, the four push fingers 192 are integrally provided at positions corresponding to the surface of the clamp base 168, respectively.

The push finger 192 is supported by the elastic member 194 on the clamp arm 184. In the present embodiment, the elastic member 194 is provided on the elastic shaft 193 having both ends supported by the clamp arm 184. One end of the elastic member 194 pushes the pressing finger 192 about the elastic axis 193 to provide an elastic force. The pressing finger 192 functions to press the medium against the clamp base 168 regardless of the number of mediums provided between the clamp base 168 and the clamp arm 184. [

In such a conventional configuration, the paid-out media bundle is clamped between the clamp arm 184 and the clamp base 168 by being pressed by the push finger 192. In this state, the bundle of media m is transmitted to the user as the clamp assembly 160 is transported forward by using the feed motor 165 as a driving source.

However, the above-described conventional techniques have the following problems.

The clamp arm 184 receives power from the arm rotating motor 186 through the motor gear 186 ', the connecting gear 187 and the rotating shaft gear 185'. As the arm rotation motor 186 is driven and receives power, the gear teeth of the gears 186 ', 187 and 185' may not be normally engaged and may be pushed one by one.

In this case, since the arm rotation shaft 185 and the clamp arm 184 are not completely rotated to clamp the medium, there is a problem that clamping of the medium is not normally performed.

Further, the pressing finger 192 is supported by the elastic force of the elastic member 194, and the elastic force of the elastic member 194 is weakened when the clamping device is used for a long period of time. When the elastic force of the elastic member 194 is weakened, the press finger 192 can not stably clamp the medium.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a medium clamping apparatus for a media dispenser having a structure capable of more reliably and stably clamping a medium.

According to an aspect of the present invention, there is provided a clamping apparatus comprising: a clamp base supporting one side of a medium; A clamp arm rotatably supported on an arm rotation shaft rotatably installed on the clamp base by an elastic force and having a tip extended to a tip thereof by a pressing finger for pressing the medium with an elastic force; And a clamping arm which is provided at a center of the arm rotation axis and is selectively hooked to a rear end of the clamp arm in a state where the medium is clamped to restrict rotation of the clamp arm and is hooked on a rear end of the clamp arm when releasing clamping of the medium, And a fixture for allowing the arm to overcome the elastic force and to be rotated in the unclamping direction.

The clamp base is provided with an arm rotation motor for providing power necessary for rotating the arm rotation shaft, and the arm rotation motor transmits power to the arm rotation shaft by a gear train.

The rear end of the clamp arm is supported by an elastic member provided on the arm rotation axis, and the elastic member provides an elastic force in a direction in which the clamp arm clamps the medium.

An extension finger is provided in the center of the tip end of the clamp arm, and the extension finger is provided with a media sensor for detecting the clamping of the medium.

A pair of extension portions extending downwardly from the rear end of the clamp arm, and an extension end extending in a direction opposite to the extension direction of the extension portion.

The fixture includes: a body portion provided to surround the center of the arm rotation axis; A clamping leg extending from the body part to one side, the clamping leg being selectively engaged with the clamping arm in a state where the clamping arm clamps the medium; And a clamping release leg extending orthogonally to the clamping leg and hooked to the clamping end when the clamping of the medium is released so that the clamping arm is rotated in the clamping release direction.

And the clamping leg is formed to have a predetermined gap with the holding end in a state where the medium is clamped.

In the present invention, it is regulated by the clamping leg of the fixture that the clamp arm is lifted upward due to the weakening of the elastic force of the elastic member in the state where the press finger of the clamp arm clamps the medium. Therefore, the pressing finger of the clamp arm can more reliably clamp the medium.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a media clamping apparatus for a media dispenser according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view showing a configuration of a preferred embodiment of a media clamping device for a media dispenser according to the present invention.

As shown, the media clamping apparatus is provided with a clamp base 10 made of a metal plate. The clamp base 10 serves to support one surface of the medium m.

A plurality of interference preventing slots 12 are formed in the clamp base 10 to prevent interference with other parts during rotation. The interference prevention slots 12 are formed parallel to the clamp base 10, starting at the tip of the clamp base 10. The clamp base 10 is provided with a support bracket 14 standing upright for supporting both ends of the arm rotation shaft 22 to be described below.

A clamp arm (20) is rotatably mounted on the clamp base (10). The configuration of the clamp arm 20 is well shown in FIG. The rear end of the clamp arm 20 is rotatably mounted on the arm rotation shaft 22. That is, the rear end of the clamp arm 20 is installed to surround the arm rotation shaft 22.

Both ends of the arm rotation shaft 22 are rotatably installed on the support bracket 14. [ The arm rotation shaft 22 is provided with an elastic member 23. The elastic member 23 supports the rear end of the clamp arm 20 with an elastic force. The elastic member 23 provides an elastic force such that the clamp arm 20 is rotated in a direction to clamp the medium m. That is, the elastic member 23 allows the extension finger 24, which will be described below, to press the medium m.

At the center of the front end of the clamp arm 20, an extension finger 24 extending forward is provided. A distal end of the extended finger 24 is provided with a media sensor 26 for detecting the clamped media m. The media sensor 26 detects whether the medium m is normally clamped or the like.

A plurality of push fingers 28 extending forward are provided at the tip of the clamp arm 20. The pressing finger 28 is formed to be inclined downward from the tip end of the clamp arm 20, and the tip end thereof is formed into a curved surface so as to exert a predetermined elastic force. The push finger 28 substantially pushes the medium m and closely contacts the clamp base 10.

The push fingers 28 extend in parallel at a portion except for the tip center of the clamp arm 20. In the present embodiment, six push fingers 28 extend in total. The push finger 28 is formed so as not to interfere with the interference prevention slot 12.

On the other hand, the clamping arm 30 is provided at the center of the rear end of the clamp arm 20. The latching end 30 is a portion where the legs 44 and 46 of the fastener 40 to be described below are hooked. The latching end 30 is provided at the distal end of an extension 31 (see FIG. 5B) extending downward from the center of the rear end of the clamp arm 20. The pair of latching ends 30 are provided so as to extend in a direction in which the pair of the latching ends 30 are opposed to each other.

The clamp base (10) is provided with an arm rotation motor (32). The arm rotation motor 32 is a driving source for providing power necessary for rotating the arm rotation shaft 22. [ The power of the arm rotation motor 32 is transmitted to the arm rotation shaft 22 through the gear train 34.

The gear train 34 is provided with a motor gear 34a provided on the rotating shaft of the arm rotating motor 32. [ The motor gear 34a meshes with the connecting gear 34b and the connecting gear 34b meshes with the rotating shaft gear 34c provided at the end of the arm rotating shaft 22. [

Meanwhile, a fixture 40 is provided at the center of the arm rotation shaft 22. A through hole 40 'is formed in the fixture 40 so as to be fixed to the arm rotation axis 22 through a screw or the like and the fixture 40 is rotated together with the arm rotation axis 22. The fixture 40 serves to more reliably clamp the medium m by the push finger 28. That is, the fastener 40 is hooked on one side of the latching end 30 to prevent the push finger 28 from being rotated upwardly.

The fixture 40 is provided with a body 42 fixed to the arm rotation axis 22. The body portion 42 is formed to surround the arm rotation axis 22. A clamping leg 44 extends from one side of the body portion 42. The clamping leg 44 is a portion that is selectively engaged with the latching end 30 of the clamp arm 20. That is, when the clamp arm 20 is lifted upward due to the weakening of the elastic force of the elastic member 23 in a state where the clamp arm 20 clamps the medium m, 20).

In other words, in a state in which the medium m is clamped, the clamping leg 44 is not held on the latching end 30 but is kept in a state having a predetermined gap with the latching end 30. In this state, when the clamp arm 20 is excessively lifted upwards, it is hooked on the clamping end 30 to regulate the rotation of the clamp arm 20. [

Clamping release legs 46 extend from the fixture 40. The clamping release leg 46 extends perpendicular to the clamping leg 42. The clamping release leg 46 is engaged with the clamping end 30 when releasing the clamping of the medium m so that the clamping arm 20 can be rotated. That is, the clamping release leg 46 allows the clamp arm 20 supported by the elastic member 23 to overcome the elastic force and rotate.

Hereinafter, the operation of the media clamping device of the media dispenser according to the present invention will be described in detail.

First, the process of releasing the clamping of the medium will be described with reference to FIGS. 5A to 5C. FIG. 5A shows a state in which the medium is clamped by the pressing fingers 28 of the clamp arm 20. FIG. At this time, the clamp arm 20 is supported by the elastic force of the elastic member 23 provided on the arm rotation shaft 22, thereby clamping the medium m. The clamping legs 44 of the fastener 40 are positioned above the fastening end 30 of the clamp arm 20 with a predetermined gap therebetween. When the clamp arm 20 is rotated such that the elastic force of the elastic member 23 is weakened or the medium m is excessively accumulated and lifted upwardly, the latching end 30 is hooked on the clamping leg 44 So that the medium m can be more stably clamped.

In this state, the arm rotation motor 32 is driven to release the clamping of the medium m. The arm rotation motor 32 transmits power to the gear train 34 so that the arm rotation shaft 22 is rotated in a direction to release the clamping of the medium m. That is, the arm rotation axis 22 is rotated clockwise in FIG. 5A.

When the arm rotation shaft 22 is rotated, the fixture 40 is rotated together with the arm rotation shaft 22. At this time, the clamp arm 20 is in a state in which the medium m is continuously clamped with the arm rotation shaft 22 without being rotated. In the course of the rotation of the fixture 40, the clamping release leg 46 is caught by the lower end of the latching end 30. Then, the clamp arm 20 rotates together with the arm rotation shaft 22. The clamping release leg 46 rotates the clamp arm 20 while overcoming the elastic force of the elastic member 23. This state is well illustrated in Figure 5B.

The fixture 40 is continuously rotated together with the arm rotation axis 22 and rotated to the position shown in FIG. In this case, the clamping of the medium m is completed.

Next, in order to clamp the medium m, the arm rotation motor 32 is driven as opposed to the case described above. Then, the arm rotation shaft 22, which receives the power through the gear train 34, is rotated. The clamp arm 20 is rotated by the elastic force of the elastic member 23 when the clamping releasing leg 46 is released from the hooking end 30 when the arm rotation shaft 22 is rotated.

5A by the power of the arm rotation motor 32 and the clamping legs 44 of the clamping member 40 are rotated by the clamping arm 20 so that the clamping arm 20 is moved to the medium (m) in the direction of releasing the clamping.

As described above, the clamp arm 20 can be rotated together with the arm rotation axis 22 by the fastener 40 without requiring a separate driving source. In other words, the power is directly transmitted from the arm rotation motor 32 and is rotatably supported by the elastic force of the elastic member 23 without being rotated.

The scope of the present invention is not limited to the embodiments described above, but may be defined by the scope of the claims, and those skilled in the art may make various modifications and alterations within the scope of the claims It is self-evident.

1 is a sectional view showing a part of a conventional media dispenser;

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a medium clamping apparatus for a media dispenser.

3 is a plan view showing a configuration of a preferred embodiment of a media clamping device for a media dispenser according to the present invention.

4 is a plan view showing a configuration of a clamp arm constituting a preferred embodiment of the present invention.

5A to 5C are cross-sectional side views showing a process of releasing clamping of a medium according to a preferred embodiment of the present invention.

Description of the Related Art [0002]

10: Clamp base 12: Interference prevention slot

14: support bracket 20: clamp arm

22: arm rotating shaft 23: elastic member

24: extension finger 26: media sensor

28: push finger 30:

32: arm rotation motor 34: gear train

40: fixture 42:

44: Clamping leg 46: Clamping release leg

Claims (7)

A clamp base supporting one side of the medium; An arm rotating shaft rotatably installed on the clamp base; A clamp arm rotatably supported on the arm rotation shaft by an elastic force and having a tip provided with a push finger for pressing the medium with an elastic force and a rear end provided with a hook; And And a clamping leg provided on the arm rotation axis so as to be rotated simultaneously with the arm rotation axis and selectively clamping one side of the clamping end in a state where the clamping arm clamps the medium to restrict rotation of the clamping arm, Lt; / RTI > The method according to claim 1, Further comprising a clamping release leg extending from the clamping leg and pressing the other side of the clamping end so that the clamp arm is rotated in the clamping release direction when releasing the clamping of the medium. The method according to claim 1, An arm rotation motor installed in the clamp base to provide power, And a gear train for transmitting the power of the arm rotating motor to the arm rotating shaft to rotate the arm rotating shaft. The method according to claim 1, Wherein a rear end of the clamp arm is supported by an elastic member provided on the arm rotation axis, and the elastic member provides an elastic force in a direction in which the clamp arm clamps the medium. 5. The method of claim 4, An extension finger extending in the horizontal direction at the center of the tip of the clamp arm, Wherein the elongated finger further comprises a media sensor for sensing a clamping of the media. delete The method according to claim 1, Wherein the clamping leg is formed to have a predetermined gap with the holding end in a state where the medium is clamped.

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