JPH02117528A - Paper sheet delivery device - Google Patents

Abstract

PURPOSE:To make a lower paper sheet generate a force to separate from an upper side paper sheet for delivering the paper sheets one by one surely by providing a bending means between a guide face and the upper face of a guide bed in front lower side of a screen plate, and bending delivered paper sheets in vertical direction viewed from the front of the moving direction. CONSTITUTION:When a second paper sheet A2 is not separated, two sheets of bottom paper sheet A1, A2 move forward and downward as making sliding contact to a guide face 10, and separating force acts on upper and lower paper sheets A on behalf of lowering of frictional resistance of sliding contact during movement on a lower paper sheet A1 faster than that of upper side A2 due to a rugged lower end face 5a of a screen plate 5 composing a bending means D and a guide bed 9 nearly facing thereto and tilted in its front up state from its lower side. When the lower paper sheet A1 abuts on the bottom end face 5a, the same bends like lying along the bottom face 5a, and a force comes in action to separate the same from the upper side paper sheet A2 without allowing the same to come to the bottom end face 5a while holding a horizontal posture on account of deformation of the sheet A1 to be uneven viewed from the front in the moving direction.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention is directed to paper such as so-called stickers, cards, tickets, etc.
This invention relates to a paper sheet dispensing device for dispensing paper sheets made of plastic or the like for automatic sales or the like.

(Prior art) As a device for feeding out paper sheets one by one,
Publication No. 4966 (first example) and JP-A-62-167143
There is one disclosed in Japanese Patent Publication No. 2 (Second Example).

In the prior art of the first example, the front part of the paper sheets stacked in the case is supported by a delivery roller, and by rotation of the delivery roller, the lowest paper sheets are removed from below the front screen plate. It is configured to send forward one sheet at a time. In addition, the weight adds weight to the weight of the paper sheet.

In the second example of the prior art, a stack of paper sheets is placed on an extrusion member,
The lowermost sheet is pushed out by the extrusion step at the rear upper part of the extrusion member, and the uppermost sheets are prevented from moving by a screen plate.

A guide surface facing forward and downward is formed at the lower part of the rear surface of the screen plate, and this guide surface abuts at the same time as the tips of the various sheets of paper.

(Problem to be solved by the invention) Paper sheets are very thin and tend to adhere to each other due to oil films and static electricity on their surfaces. The weight of the higher-ranking leaves is added to the leaves, which compresses them and makes them thinner, reducing the accuracy of feeding one leaf.

In the first example, a gap for one sheet of paper is provided between the lower end of the screen plate and the feed roller, and the screen plate prevents all sheets except the lowest sheet from being fed. The plate does not have the strength to peel off the adhered paper sheets, and if the paper sheets become thin or deformed due to the load, two-sheet feeding will occur immediately. In particular, when the number of stacked paper sheets decreases, the leading edge of the paper that is not receiving the weight of the weight may lift up.

In addition, in the second example, since the lowest paper sheet is sent out from the rear at the stepped portion of the sliding extrusion member, even if the paper sheet is attached, it can be peeled off and sent out one by one. However, it is difficult to apply this method to extremely thin sheets that may damage the upper sheet during the return stroke of the extrusion member, or where the sheets have different wall thicknesses. The screen board is formed with a front downward guiding surface, which presses the first sheet with the second or higher sheet to prevent the leading edge of the sheet from floating up. It is not possible to actively separate the leading end from the second or more sheets, and on the contrary, there is a possibility of promoting the delivery of two sheets.

The present invention solves the problems of these conventional techniques and allows paper sheets to be separated into one sheet with extremely high precision, even if the sheets are extremely thin, even if the top and bottom are stuck together, or even if weight is added from above. It is an object of the present invention to provide a paper sheet feeding device capable of feeding paper sheets one by one.

(Means for Solving the Problem) A specific means in the method of the present invention for solving the problem is to place the front part of the paper sheets in a case for storing the paper sheets in a stacked manner and to rotate the paper sheets. A feed-out roller that sends out the lowest sheet forward, and a roller that is installed upright in front of the stacked sheets in front of this feed-out roller in the feeding direction and that feeds the second or more sheets from the bottom. A screen plate that prevents paper sheets from being sent out, a guide table that lifts and guides the paper sheets sent out from the screen board higher than the lower end surface of the screen plate, and a receiving surface that receives the rear part of the loaded paper sheets are provided. In the paper sheet feeding device, there is a plow on the stacked paper sheets that is substantially opposite to the feeding roller and applies weight mainly to the front portion of the paper sheets.ii! A guide surface is formed on the rear surface of the lower part of the screen plate, which is inclined forward and downward to guide the leading edge of the lowest sheet to be sent forward and downward, and between this guide surface and the top surface of the guide table, A bending means is provided for bending the paper sheet in the vertical direction when viewed from the front in the moving direction.

(Function) When the feed roller 3 is rotated, the lowest sheet of paper stacked in the case 2 is sent forward, and its leading edge is in a free state and touches the front downward guide surface 10 of the screen plate 5. comes into contact with
Moves while curving downward. 2nd or more paper sheets A
hits the screen plate 5, but it comes into contact above the guide surface 10 and is separated from the lowest sheet A1.

When the second paper sheet A2 is not separated, the two lower paper sheets Al and A2 move forward and downward while slidingly contacting the guide surface 10, and the screen plate 5 that constitutes the bending means is moved. The uneven lower end surface 5a of 1 and the guide table 9 that is substantially opposite to the guide table 9 and tilted in a front convex shape from below allow the frictional resistance of the sliding contact during the transition from 1 to the upper paper sheet. Since the lower paper sheet A2 falls faster than the paper sheet A2, a separation force acts on the upper and lower paper sheets A, and when the lower paper sheet A1 comes into contact with the lower end surface 5a, it curves along the lower end surface 5a, and the paper sheets Due to the deformation of A1, which becomes uneven when viewed from the front in the moving direction, a force is exerted to separate the upper paper sheet A2, which does not reach the lower end surface 5a and remains in a horizontal position, so that one sheet is fed more reliably. .

The weight 22 faces the delivery roller 3 that receives the front part of the paper sheet ^ and adds weight to the front part of the paper sheet A, so that even if the number of sheets stacked is small, the front part of the paper sheet does not float up. Therefore, the delivery by the delivery roller 3 is ensured.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

In the first embodiment shown in FIGS. 1 to 7, l is a filter paper sheet feeding device built in a sticker vending machine or the like, and a case 2 having left and right side walls 2a and a back plate 2b formed of sheet metal or the like has a number of filter paper sheets. Ten to several hundred sheets of paper IWA are stored in a stack, a feed roller 3 and a receiving member 4 are arranged at the bottom thereof, and a screen plate 5 is erected in front of the roller.

The delivery roller 3 is provided on a delivery roller shaft 6 pivotally supported by the case 2 in order to receive the front part of the loaded paper sheets A, and is made of rubber, sponge, or a metal roller with a rough surface. A rotating member 7 such as a gear, a rubber roller, or a sprocket is provided at the outer end of the delivery roller shaft 6 to which driving force is transmitted from a manual handle, an electric motor, or the like.

A roller receiver 8 is disposed behind the feed roller 3, and a guide stand 9 inclined forward and upward is disposed in front of the feed roller 3.

The lower part of the screen plate 5 is located at a distance above and in front of the delivery roller 3, and a guide surface 10 is formed on the rear surface of the lower part, and is inclined forward and downward at an inclination angle α of 30 to 70 degrees with respect to the perpendicular line. , the upper end 10a of this guide surface 10, that is, the screen plate 5
The lower edge of the side of the stacked paper sheets is at a height of ■ from the feed roller 3.
This height H is larger than the wall thickness t of the paper sheet 1fiA, but smaller than the thickness 2t of two sheets, and the lower end of the guide surface 10, that is, the lower end surface 5a of the screen plate 5, is It is located one dimension below the top of 3.

Therefore, as shown in FIG. 3, the second sheet A2 from the bottom of the stack of paper sheets on the feed roller 3 comes into contact with the screen plate 5 above the upper end 10a, and is prevented from being fed out. Paper sheets A
1 comes into contact below the upper end 10a, so it is deflected downward while slidingly contacting the guide surface 10, and is deformed from a horizontal position in the longitudinal direction to a forward downward curved state when viewed from the side.

Further, as shown in FIG. 5.6, the lower end surface 5a of the screen plate 5 is formed into a downwardly convex circular arc surface within the width when viewed from the front, and intersects with the guide surface 10, so that the paper sheet When the paper sheet passes under the lower end surface 5a while being in contact with the paper sheet, the paper sheet is curved downwardly in a convex shape in the paper width direction when viewed from the front in the moving direction. When the paper sheets A are about to be sent out in a double layer, as shown in FIG. 4, the leading edge of the lower paper sheet A1 curves along the lower end surface 5a, so that the adhesion is loosened. Then, the left and right sides of the lower sheet ^1 jump up again, pushing up the upper sheet ^2. The guide stand 9 lifts the front part of the paper sheet A higher than the lower end surface 5a, thereby ensuring that the paper sheet is not deformed into irregularities.

That is, the lower end surface 5a forms a bending means between the guide surface 10 and the upper surface of the guide stand 9, which further bends the paper sheet A, which is curved in the vertical direction in side view, in the vertical direction in front view.

FIG. 8.9 shows two modified examples of the lower end of the screen plate 5, and the shape of the lower end surface 5a constituting the curved means is not limited to a downwardly convex shape, but also a downwardly concave shape as shown in FIG. In other words, it may have a downward convex shape at both the left and right ends, or may have a shape in which only the center in the left and right direction protrudes downward as shown in FIG. This downwardly projecting portion may form an independent projecting member, and this projecting member may be fixed to the lower part of the screen plate 5.

Note that the corner 1) between the lower end surface 5a and the guide surface 10 is preferably chamfered and rounded in order to smoothly transition to paper sheets.

Forming the lower end surface 5a of the screen plate 5 in an uneven shape means that
The shape of the front downward guide surface 10 is also changed.

That is, when the lower end surface 5a is horizontal, the guide surface 10 has the same width over the entire length in the left and right direction, but by making it uneven, the width will be different between the center part and both sides in the left and right direction. The length of contact between the leading edge of the sheet and the guide surface 10 becomes shorter as it goes downward, and therefore the frictional resistance during sliding contact is large at the top of the guide surface 10 and minimum at the bottom. Therefore, in the case of double-layer paper sheets, the magnitude of the frictional resistance exerted on the upper and lower paper sheets is completely different, and the sheet receives a large frictional resistance from the guide surface 10 and receives no feeding force from the feeding roller 3. The upper paper sheet 2 will not stick to the lower paper sheet [A1].

A step portion 12 is provided on the rear surface of the screen plate 5 above the guide surface 10.
is formed, and the stepped portion 12 and above are the protrusions 13. This protrusion 13 allows, for example, 10 to 20 paper sheets A to be loaded.
The parts above are slightly shifted backwards.

The receiving member 4, which receives the rear part of the stacked paper sheets, has mounting portions 14 at both left and right ends that are welded or bolted to the case 2, and one or more tongue pieces 15 are provided halfway in the left and right direction. The tongue piece 15 is formed with a vertical wall portion 16 and a holding guide portion 17 that slopes rearward and upward from the upper end of the wall portion 16.

The receiving surface 18 of the receiving member 4 is set at the same height or slightly higher than the upper part of the delivery roller 3, and the lower end of the receiving guide part 17 is set at the same height or slightly lower than the step part 12, and is set at the same height or slightly higher than the upper part of the delivery roller 3. The distance from the portion 16 to the protrusion 13 is shorter than the front-to-back length of the sheet A by the depth of the stepped portion 12.

Therefore, paper sheets AP lower than the stepped portion 12 have their rear ends held by the receiving surface 18, while paper sheets AQ higher than the stepped portion 12 have their rear ends received by the holding guide portion 17, and When the upper paper sheet AQ descends, it is shifted forward by the holding guide section 17.

Therefore, the entire weight of the stacked paper sheets A is applied to the delivery roller 3 on the front side, but the lower paper sheet i is applied to the receiving surface 18 on the rear side.
Only the amount of AP is added, and the weight added to the rear end of the lowest sheet A that is about to be sent out is significantly reduced.Moreover, this does not change even if the number of loaded sheets A increases, and the sending resistance is reduced. It becomes light and small and almost constant.

The receiving surface 1 of the roller 8 is such that the rear end of the paper sheet A to be sent out is the receiving surface 1.
This prevents it from sagging after being separated from 8.
The guide stand 9 guides the front end of the paper sheet to be delivered to the outlet. In FIG. 1, a weight 22 is placed near the screen plate 5, substantially facing the feed roller 3, and applies weight mainly to the front portion of the stacked paper sheets A. 23
indicate the trajectory of the weight.

In addition, the screen plate 5 or the delivery roller 3 may be made vertically adjustable, the screen plate 5 may be formed of two upper and lower members, the receiving member 4 may be made longitudinally and vertically adjustable, or the tongue piece 15 may be formed as a separate member. It is also possible to form it with and attach it to the receiving member 4.

In the second embodiment shown in FIGS. 10 to 12, the screen plate 5 has a resistance member 2 at the center in the width direction of the inclined guide surface 10 at the lower part of the screen plate 5.
5 is installed protrudingly. The resistance member 25 is made of a cut piece of a conveyor belt, a sandpaper, a rubber plate, or the like, and has a rough surface that provides frictional resistance when the leading edge of the paper sheet A comes into sliding contact with it.

Therefore, two sheets of paper A coming into sliding contact along the guide surface 10
When the sheets are superimposed, the tips of both sheets A are slightly shifted back and forth and come into sliding contact with the resistance member 25, and the frictional resistance that the second sheet A2 receives becomes larger than that in the first embodiment. Therefore, only the lowest sheet A1 that is more reliably separated from the lowest sheet A1 and is in contact with the feed roller 3 is sent out.

Since the resistance member 25 is fixed to the guide surface lO,
Only the thick bone will protrude, and it will also serve to deform the paper sheet into an uneven shape when viewed from the front in the direction of movement. This resistance member 25 may extend to the lower end surface 5a, and its width is preferably about 3 to 61 cm.

FIG. 12 shows the downwardly protruding lower end portion 5 shown in the first embodiment.
Although the resistance member 25 is fixed to the screen plate 5 having a
A resistance member 25 may be provided on the downwardly protruding portion of the screen plate shown in the modified example of FIG. 8.9, and as shown in FIG. Information surface 10
A resistance member 25 may be fixed to the lower end surface, and the resistance member 25 may form the uneven lower end surface 5a of the lower part of the screen plate 5.

In FIG. 10, 21 is a movable holding plate that presses paper sheets above the guide table 9, and is pivoted to the case 2 via a pin 20, and 24 guides the paper sheets to the outlet 9. It is fixed to the outer case 48 with a fixed presser plate.

Further, in this second embodiment, the roller 8 is not provided on the receiver, and the receiving surface 18 of the receiving member 4 protrudes forward and the front part thereof is inclined downward, so that the receiver serves as a roller. Furthermore, the holding guide portion 17 is bent in a dogleg shape when viewed from the side, so that the weight of the upper sheet 90 is not added to the lower sheet IAP.

Figures 10.14.15 show a drive for a sheet vending machine. Reference numeral 48 denotes an outer case with an open rear surface, and an upper cover 49 is attached after a rear cover (not shown) is closed.

On the outside of one side wall 2a of the case 2, there is an operating mechanism 26 that detects when a predetermined number of coins have been inserted from a coin selector (not shown) and permits the delivery of one paper sheet.
are arranged and 1. Frame 27 of this operating mechanism 26
One drive shaft 28 is penetrated and supported, and a handle 2 is provided at the outer end.
9, a driving rotary body 30 is fixed to the side wall 2a side.

The driving rotary body 30 is formed of a gear, a rubber roller, a sprocket, or the like that can transmit power to the rotating member 7.

The rotating member 7 has a retaining part 31 formed of two pins and a stopper part 32 spaced apart from each other in the circumferential direction on one side, and the delivery roller shaft 6 has an engaging part 31 and a stopper part 32. An actuating body 33 that selectively engages and abuts the stopper portion 32 is provided, and this actuating body 33 is formed by driving a pin into the delivery roller shaft 6.

The engaging portion 31 engages with the operating body 33 to transmit power to the delivery roller shaft 6 when the rotating member 7 is driven by the driving rotary member 30, and the stopper portion 32 is configured to transmit power to the delivery roller shaft 6. This prevents the actuating body 33 from leaving the engaging portion 31 by more than a certain distance when the shaft 6 is reversely driven by pulling out paper sheets, and prevents the inertial free rotation of the delivery roller shaft 6. .

When a predetermined number of coins are inserted into the operating mechanism 26, the handle 29 can be rotated by a certain angle. The handle 29 is rotated a required amount, and then the handle 29 is rotated 30'' back.

That is, in the actuation mechanism 26, an actuation disk 37 fixed to the drive shaft 28 is arranged between two frame walls 35 and 36, and a coin detector 38 and a ratchet pawl 39 can be freely engaged with and detached from the actuation disk 37. A coin detection section 40 is formed between the frame wall 36 and one frame wall 36. Further, a return lever 41 is pivotally supported on the outer surface of one of the frame walls 36, and a return body 42 that engages with the return lever 41 is fixed to the drive shaft 28.

When two coins B enter from the slot 43, they are held by the coin detection section 40 on one side of the operating disk 37, and the second coin B closes the detection recess 44 on the outer periphery of the operating disk 37, causing the coin to be detected. It makes it impossible to integrate with the body 38. As a result, the drive shaft 28 becomes rotatable via the handle 29, and the drive shaft 28 is rotated by 390 degrees.

When the drive shaft 28 has rotated 360', the return body 42 engages with the return lever 41, and the spring 45 is rotated up to 390''.
The drive shaft 28 is rotated against this. Drive shaft 28 is 390
If the coin detector 40 does not contain the next coin when the coin detector 40 rotates to ', the coin detector 38 engages the detection recess 44 to prevent the actuating disk 37 from rotating. after that,
When the handle 29 is released, the drive shaft 28 is rotated back by the tension force of the spring 45 via the return lever 41 and the return body 42, and the ratchet pawl 39 engages with the ratchet groove 46 when the drive shaft 28 returns to 360°. The return rotation of the actuating disk 37 is restricted.

Reference numeral 51 denotes a sell-out mechanism, which is configured to operate when the weight 22 reaches the lowest position. A detection bar 52 and an actuation bar 53 are attached to a pin 54 on the inner surface of the front wall of the outer case 48 .
55 so as to be rotatable about the front and rear axes, respectively. The detection bar 52 has a letter shape when viewed from the front and has a spring 5 at the negative end.
6 are continuous, and a hook portion 57 is formed at the other end, and an engagement protrusion 58 of the weight 22 is disposed on the other end side so as to be engageable.

The weight 22 has rollers 60 on the left and right sides for moving up and down along the track 23, and the upper end of a spring 61 for elastically pulling it down is locked, and the front groove 6 of the screen plate 5 is formed in the front part.
It has an engaging protrusion 58 protruding from 2, and has a lifting part 63 at the rear for artificially pulling up. The lower ends of the spring 61 are secured to the left and right side walls 2a.

The operating lever 53 has a latch portion 64 formed in an L shape at the lower end.
A spring 65 applies a tensile force in the clockwise direction in FIG.
It is engaged with the hook part 57 of No. 2 to prevent swinging.

A long groove 66 is formed in the upper part of the actuation bar 53, and a stopper pin 67 is inserted into this long groove 66. This stopper pin 67 is attached to the outer case 48, and the long groove 6
The swing range of the actuating bar 53 is set in conjunction with 6.

The actuating bar 53 has a beak 68 projecting sideways from the top, and the tip of the beak 68 can move in and out of the coin slot 69 of the coin selector. By swinging to the two-dot chain line position, it protrudes into the coin slot 69 and prohibits coin insertion.

In addition, a pair of left and right bent tongue pieces 70 are provided on the upper surface side of the beak 68.
protrudes, and the tip of the release lever 71 is inserted between the pair of tongues 7o. The release lever 71 is attached to the side wall 2
The tip is bent into an L shape, and by rotation, the actuating bar 53 can be swung counterclockwise via one of the tongue pieces 70.

The operation of the sold-out mechanism 51 is such that when the remaining amount of stacked paper sheets A becomes zero or one to two sheets, the engagement protrusion 58 of the weight 22 that has reached the lowest position pushes the detection bar 52 against the spring 56. Rotate to release the engagement between the hook portion 57 and the hook portion 64. By releasing the engagement, the actuating bar 53, which is subjected to a tensile force by the spring 65, swings to the position indicated by the two-dot chain line in FIG. 15, and the tip of the beak 68 advances into the coin slot 69, thereby prohibiting coin insertion.

After that, the weight 22 is lifted and a new paper sheet A is fed onto the feed roller 3, and then the release lever 71 is rotated, and the actuating bar 53 resists the spring 65 and reaches the position shown by the solid line in FIG. Returning, the hooking portion 57 engages the detection bar 52 with the hooking portion 64 and maintains the solid line position.

A weight holder 73 is provided at the top of the case 2,
The applicant pin part 74 on the upper part of the weight 22 can be held between a pair of claws 75. Instead of providing this weight holder 73, the upper part of the track 23 is formed into a piece shape, and a roller 60 is introduced into the hook part to hold the weight 22 in the upper position. Also good.

(Effects of the Invention) According to the device of the present invention described in detail above, a guide surface is formed on the rear surface of the lower part of the screen plate, and is inclined forward and downward to guide the leading edge of the lowest paper sheet to be sent forward and downward. A curving means is provided between the guide surface and the upper surface of the guide table below the front of the screen plate, and the paper sheet to be sent out is curved in the vertical direction when viewed from the front in the direction of movement, so that the second sheet from the bottom is With paper sheets being prevented from being fed out, the lowest paper sheet can be curved forward and downward, and then deformed into a vertically curved shape within the paper width when viewed from the front in the moving direction. It is possible to generate a force that separates the leaf from the upper sheet, thereby allowing more reliable delivery of one sheet.

In addition, the front part of the paper sheet is received by the delivery roller, and the weight is added by the weight substantially opposite to it, so that the front part of the paper sheet will not float up even if the number of stacked sheets is at least The delivery roller can ensure reliable delivery.

[Brief explanation of the drawing]

1 to 7 show a first embodiment of the present invention, FIG. 1 is a longitudinal sectional view, FIG. 2 is a longitudinal sectional view of the main part, FIG. Figure 4 is an explanatory diagram showing the separation state of double paper sheets, Figure 5 is a perspective view of the screen board viewed diagonally from below, Figure 6 is a view taken along the line ■-■ in Figure 1, and Figure 7. 8.9 is a perspective view of the receiving member, FIG. 8.9 is a rear view showing two modified examples of the lower end surface of the screen plate, FIGS. 10 to 12 show the second embodiment of the present invention, and FIG. Vertical cross-sectional view, Figure 1) is a vertical cross-sectional view of the main part, Figure 12 is a perspective view of the screen board viewed diagonally from below, Figure 13
The figure is a perspective view showing a modification of the second embodiment, Figures 14 and 15 show the entire internal structure of the paper sheet vending machine, Figure 14 is a cross-sectional side view, and Figure 15 is a partially cross-sectional front view. It is a diagram. A... Paper sheet, D... Curving means, 1... Paper sheet feeding device, 2... Case, 3... Feeding roller, 4
... Reception member, 5 ... Screen plate, 5a ... Lower end surface, 9
Guide stand, 1o... Guide surface, 12... Step part, 13.
・Protrusion, 15 River tongue piece, 17 ・Holding guide part, 18・
...Receiving surface, 22... Weight, 25... Resistance member.

Claims (1)

[Claims] (1) A delivery roller that places the front part of the paper sheets in a case that stores the paper sheets in a stack and sends out the lowest paper sheets forward by rotating, and this delivery roller. A screen plate is installed upright in front of the loaded paper sheets in front of the roller in the feeding direction and prevents the second or more paper sheets from being sent out from the bottom, and a screen plate that prevents the paper sheets sent out from this screen plate A paper sheet delivery device that is provided with a guide platform that lifts and guides the paper sheets higher than the lower end surface of the screen plate, and a receiving surface that receives the rear part of the stacked paper sheets, the paper sheet delivery device being provided with A weight that mainly applies weight to the front of the paper sheet is placed approximately opposite to the paper roller, and a weight that is tilted forward and downward is placed on the rear surface of the lower part of the screen plate to guide the leading edge of the lowest paper sheet forward and downward. A paper sheet characterized in that a shaped guide surface is formed, and a bending means is provided between the guide surface and the upper surface of the guide table for bending the paper sheet to be sent out in the vertical direction when viewed from the front in the moving direction. type sending device.