JP5608807B1 - Coin collecting machine - Google Patents

Abstract

To reliably collect coins.
A scraper having an inclined surface or a curved surface, one end of which is located below the other end, a rotating body provided on one end side of the scraper, and a scraper. A coin collecting machine provided with a coin collecting unit 5 provided on the other end side of the scraper 3. The flexible scraping blade 41 is arranged, and the scraping blade 41 is configured such that at least the tip side can be deformed into a curved shape by contact with the floor FL.
[Selection] Figure 2

Description

  The present invention relates to a coin collecting machine for collecting coins that have fallen on a floor in a game hall such as a pachislot store or a game center.

  Conventionally, when collecting coins that have fallen on the floor of a game hall such as a pachislot store or a game center, an operator bends or crouches and picks up the coins one by one. Although it was collected, it was difficult to grasp the coins falling on the floor by hand, and the more coins, the more time and effort it takes. In addition, the worker is burdened on the body because he tries to maintain his posture while working while collecting coins.

  Along with this, various coin collecting machines have been devised. As this type of coin collecting machine, for example, as shown in FIG. 9, there is an apparatus including a scraper 10, a rotating shaft 11, and a scraper 12 (see Patent Document 1). The scraper 10 is used for scooping up coins on the floor and has a plate shape. Further, the scraper 10 has a curved surface having one end and the other end, with one end side positioned below. The rotating shaft 11 extends in a direction orthogonal to the floor surface FL. The scraping body 12 includes a disk 120 and a scraping brush 121. The disc 120 is attached to the tip of the rotating shaft 11 and rotates so that the surface facing the floor surface FL is parallel to the floor surface FL. The scraping brush 121 is disposed so as to extend in a direction orthogonal to the floor surface FL and to draw a substantially S-shape on the surface of the disc 120 facing the floor surface FL.

  According to the coin collecting machine having such a configuration, the coins on the floor are scraped into the rotation range of the scraping body 12 while the hair of the scraping brush 121 of the scraping body 12 is in contact with the floor surface FL. Then, the coins that have been raked up ride on the scraper 10 and are collected by a collection unit (not shown) by pressing by the rotation of the scraping brush 121.

JP 2006-149959 A

  By the way, in the case of the coin collecting machine 100 configured as described above, since the scraping brush 121 that extends in a direction orthogonal to the floor surface FL collects the coin while rotating, the coin is pressed diagonally against the scraper 10. The coins stay in the rotation range of the scraping body 12 without being collected by the collecting unit. Specifically, the coins scraped by the rotation of the scraping brush 121 stays on one side of the scraper 10 without getting over the scraper 10, or returns to the original position from the riding position, Coins stay within the rotation range of the scraper 12. That is, the coin collecting machine 100 configured as described above has a problem that coins cannot be reliably collected.

  Therefore, in view of such circumstances, an object of the present invention is to provide a coin collecting machine that can reliably collect coins.

A coin collecting machine according to the present invention has a scraper having an inclined surface or a curved surface having one end and the other end and one end positioned below the other end, a rotating body provided on one end side of the scraper, A coin collecting machine including a coin collecting unit provided on the other end of the scraper, wherein the rotating body is a rotating shaft extending in the same direction as one end of the scraper, and is a rotating shaft that can rotate at a fixed position. And a flexible scraping blade disposed radially with respect to the rotating shaft, and the scraping blade is configured such that at least the tip side can be deformed into a curved shape by contact with the floor, and the rotating body. The length of the tip of the scraping blade from the rotation center is set to be longer than the distance connecting the rotation center of the rotating body and the floor surface, and the distance between the tips of the adjacent scraping blades in the circumferential direction is It is set to be equal to or greater than the coin diameter It is characterized in.

According to such a configuration, the scraping blade is deformed at least at the front end side into a curved shape due to contact with the floor and comes into pressure contact with the coin. Therefore, the scraping blade exceeds the vertical line connecting the rotation center and the floor. Therefore, the tip of the curved scraping blade gradually returns to a straight line, so that the coin can be vigorously scraped upward along the scraper by the restoring force at that time. Then, the coin that has climbed over the other end of the scraper falls and collects itself on the collecting unit side. In addition, the coin is always located between the raking blade and the raking blade in the process of being rafted by the raking blade, and one coin is one rafting blade (the subsequent raking blade in the rotation direction). ). That is, during the period from the scraper to the collection unit, the movement of the coin is not obstructed by the raking blade that precedes in the rotation direction.

  As one aspect of the coin collecting machine according to the present invention, it is preferable that the length connecting the intersection of the vertical line passing through the rotation center of the rotating shaft and the floor and one end of the scraper is set shorter than the diameter of the coin. .

  According to this configuration, when the scraping blade is pressed against the coin in a curved state, the coin is in a state in which the scraper can be scooped up vigorously.

  As another aspect of the coin collecting machine according to the present invention, the length connecting the rotation center of the rotating shaft and the other end of the scraper is set to be longer than the length connecting the rotation center of the rotating shaft and one end of the scraper. It is preferable that the length connecting the center of rotation and one end of the scraper is set longer than the length connecting the center of rotation of the rotating shaft and the floor.

  According to such a configuration, the length connecting the rotation center of the rotating shaft and the other end of the scraper is set to be equal to or longer than the length connecting the rotation center of the rotating shaft and one end of the scraper. In the process toward the other end, it is lifted up without being disturbed by the lifting blade that precedes in the rotational direction. Therefore, the coins are scooped up vigorously through the scraper. Further, since the length connecting the rotation center of the rotating shaft and one end of the scraper is set to be longer than the length connecting the rotation center of the rotating shaft and the floor, the lifting blade is perpendicular to the rotation center of the rotating shaft. As it approaches the end of the scraper beyond the line, it gradually returns to a straight line from the curved state. In other words, when the scraping blade is positioned at one end of the scraper, the coin is vigorously scraped. In other words, the above-described relationship between the three lengths is established, so that a condition for reliably collecting the coins that are vigorously scraped up is established.

  As another aspect of the coin collecting machine according to the present invention, it is preferable that the length connecting the rotation center of the rotating shaft and the floor is set longer than the length connecting the other end of the scraper and the floor.

  According to such a configuration, the coin can be scraped up in a state of being reliably tilted toward the collecting unit, and the coin can be reliably dropped by the collecting unit.

  As another aspect of the coin collecting machine according to the present invention, there is a wheel that rolls on the floor surface, and a gear mechanism that transmits the rotational force of the wheel to the rotating shaft, and accelerates the rotation of the rotating shaft. It is preferable to provide a gear mechanism.

  According to such a configuration, since the rotational speed of the rotating shaft is increased, the speed at which the coins are scraped up by the lifting blade is increased, and accordingly, the speed of moving the scraper is also increased. It will be. Therefore, the coin moves vigorously through the scraper so as to surely exceed the other end of the scraper. In addition, since coins can be easily collected even if the number of coins is large, the coin collecting ability is improved.

  According to the present invention, an excellent effect that coins can be reliably collected can be obtained.

The perspective view which shows the coin collection machine which concerns on one Embodiment of this invention. The sectional side view of the coin collection machine concerning the embodiment. The plane sectional view of the coin recovery machine concerning the embodiment. The cut back view of the coin collection machine concerning the embodiment. The figure which shows the relationship between the length which connects the rotation center and a floor surface, the length of a raking blade | wing, the diameter of a coin, and the height of a scraper in the coin collection machine which concerns on the same embodiment. It is a figure which shows the usage condition of the coin collection machine which concerns on the same embodiment, and is a perspective view which shows the state which moves the coin collection machine to the vicinity of the coin which has fallen on the floor. It is a figure which shows the usage condition of the coin collection | recovery machine which concerns on the embodiment, (a) shows the collection state of the coin by a scraping blade, (b) is a coin scooping along a scraper by a scraping blade. (C) shows a state where coins that have passed over the other end of the scraper are collected by the collection unit. The sectional side view which shows the coin collection machine which concerns on other embodiment. Schematic which shows the conventional coin collection machine.

  Hereinafter, a coin collecting machine according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7A to 7C.

  As shown in FIGS. 1 to 4, the coin collecting machine 1 according to this embodiment includes a scraper 3, a rotating body 4, and a coin collecting unit 5, and the scraper 3, the rotating body 4, and the coin collecting unit 5. Is provided in the recovery machine main body 2.

  The collection machine main body 2 includes a frame 20 and a cover 21. The frame 20 includes a bottom plate 20a, side frames 20b and 20b, and a rear frame 20c, and an upper surface is opened. The cover 21 includes left and right side plates 21b and 21b, a rear plate 21c, and a top plate 21d, and the lower surface is opened. A cover 21 is attached to the center of the frame 20.

  The side frames 20b and 20b of the frame 20 have the same shape as the side plates 21b and 21b of the cover 21, and a gear mechanism portion 43 to be described later is attached to the side frames 20b and 20b of the frame 20. In addition, a pair of guides 25 and 25 for guiding the coin C into the frame 20 are disposed at the front ends of the side frames 20b and 20b. The guides 25, 25 are greatly opened toward the front.

  The rear frame 20c of the frame 20 is smaller in width than the rear plate 21c of the cover 21 and has a rectangular shape. Further, an opening 200 for discharging the collected coin C is formed in the rear frame 20c.

  The bottom plate 20a of the frame 20 has a rectangular shape in plan view, and the front end of the bottom plate 20a is positioned at a position away from the rotation trajectory of the scraping blade 41 so as to sufficiently secure a region in which the later-described scraping blade 41 rotates. Is set to Further, the bottom plate 20 a is attached so as to straddle the center of the lower surface opening of the cover 21. The bottom plate 20a has a plurality of holes 201. The holes 201 reduce the weight of the collecting machine body 2 and enter the inside of the frame 20 (the collecting unit 5) when the coins C are collected. Dust on the floor FL (hereinafter sometimes referred to as the floor surface FL) is allowed to fall.

  The side plates 21b and 21b of the cover 21 have a hypotenuse 210b inclined downward toward the front side, upper and lower upper and lower sides 211b and 212b, and a rear side 213b. A notch 214 is formed from the front end of the lower side 212b to the front end of the oblique side 210b so that the rectangular opening 21a is formed in the front surface of the cover 21.

  The rear plate 21c of the cover 21 is formed such that an opening 210 for discharging the collected coin C communicates with the opening 200 of the rear frame 21c. Thereby, the discharge port which discharges | emits the coin C is comprised. A door 215 for opening and closing the opening 210 is attached to the opening 210 so as to be openable and closable. Specifically, one end of the door 215 is rotatably supported on the lower peripheral edge of the opening 210 by a hinge (not shown) or the like.

  The top plate 21d of the cover 21 includes a flat portion 210d parallel to the bottom plate 20a of the frame 20, and an inclined portion 211d that is inclined downward from the front end of the flat portion 210d. A handle 216 is integrally provided on the flat portion 210d so as to straddle the front and rear of the substantially central portion. A recess 217 is formed immediately below the handle 216 to facilitate gripping of the handle 216. The front end of the inclined portion 211d is connected to one end of the notch 214 of the left and right side plates 21b, 21b. Therefore, a rectangular opening 21a is formed in front of the cover 21 by the front end of the inclined portion 211d and the notch 214 of the side plates 21b and 21b. This opening 21a makes it easy to take in coins C falling on the floor surface FL from the front of the recovery machine main body 2.

  And the handle 216 is configured such that the tip of the operation rod 22 is detachably attached. The operation bar 22 includes a handle 220, an expansion / contraction joint 221, and a connection member 222. The handle 220 is fixed to the proximal end portion of the operation rod 22. The expansion / contraction joint 221 is provided in the middle of the operation rod 22. The connection member 222 supports the tip of the operation rod 22 so as to be rotatable. And since the front-end | tip part of the operating rod 22 is rotatably supported by the connection member 222, a person can hold the handle 220 of the operating rod 22 and operate the collection machine body 2 from any angle. Can do. Further, the operating rod 22 is configured such that its length can be expanded and contracted by an expansion / contraction joint 221.

  A region S formed by the front end of the bottom plate 20a of the frame 20, the front end of the top plate 21d of the cover 21, and the front portions of the left and right side plates 21b and 21b of the cover 21 captures the coin C. This is a work area S for scooping up.

  The coin collecting machine 1 has a structure in which a scraper 3 is movable. The structure B includes a fixed plate 30 and a movable plate 31.

  The scraper 3 has an arc shape and is fixed to the tip of the movable plate 31 so as to follow the rotation trajectory of the lifting blade 41 on the moving side of the coin C. Therefore, one end (lower end) of the scraper 3 is always in contact with the floor surface FL, and the other end (upper end) is set to a height lower than the position of the rotation center of the rotating shaft 40 described later.

  The fixed plate 30 is bent into a trapezoidal shape at the front portion of the bottom plate 20 a of the frame 20. Specifically, it has the inclination part 30a, the 1st extension part 30b, and the 2nd extension part 30c. The inclined portion 30a is inclined obliquely upward. The first extending portion 30b extends in the horizontal direction from the other end of the inclined portion 30a toward the front. The second extending portion 30c extends in the vertical direction from the front end of the first extending portion 30b. The second extending portion 30 c restricts the movement of the movable plate 31.

  The movable plate 31 is interposed between the front portion of the bottom plate 20 a of the frame 20 and the fixed plate 30. A cylindrical body 310 is interposed between the first extension portion 30 b of the fixed plate 30 and the middle portion of the movable plate 31. The cylindrical body 310 is internally provided with an elastic member that constantly pushes down the movable plate 31 (not shown). The movable plate 31 hits the elastic member and stops between the elastic plate and the fixed plate 30. Therefore, when the floor surface FL is uneven, the movable plate 31 moves up and down between the end surface of the second extension portion 30c of the fixed plate 30 according to the unevenness. The cylindrical body 310 is used for guiding expansion and contraction of the elastic member, and is not limited thereto, and may be anything that can guide the elastic member. For example, the cylindrical body 310 may be a columnar body.

  The rotating body 4 includes a rotating shaft 40 and a lifting blade 41.

  The rotating shaft 40 has a horizontally supported cylinder, and this cylinder extends in the same direction as one end of the scraper 3. Moreover, six grooves 40a are formed in the radial direction in the cylindrical body at equal intervals. Then, the base end portion of the scraping blade 41 is press-fitted into the six grooves 40a so that the scraping blade 41 protrudes in the radially outward direction. The raking blade 41 may be attached to the rotating shaft 40 using a metal fitting, a bolt, or the like.

The raking blade 41 is made of, for example, urethane rubber, and has a hardness of 90 degrees and a thickness of 1 mm × 14.5 mm × 126 mm, and has an elongated plate shape and flexibility (hereinafter referred to as a blade). It is called fried feathers). Further, the length of the lifting blade 41 in the longitudinal direction is the same as the length of the rotating shaft 40 and is attached along the axis of the rotating shaft 40. The tip portion to a length of the scraping fried blade 41 from the rotation center of the rotary shaft 40 is long rather set than the distance connecting the center of rotation of the rotary shaft 40 and the floor surface FL, the rotation of the rotary shaft 40 As it approaches the vertical line P connecting the center and the floor surface FL, it gradually curves from a straight line and is most curved on the vertical line P. Further, the scraping blade 41 gradually returns to a linear shape from a curved state as the distance from the vertical line P increases.

  As shown in FIG. 5, the distance between the tips of the lifting blades 41 in the circumferential direction is set to be the same as or larger than the diameter of the coin C. Therefore, in the process in which the coin C is scraped up by the scraper 3 which will be described later, the scraping blade 41 is not positioned on the moving side of the coin C. Therefore, the movement of the coin C moving the scraper 3 by the scraping blade 41 is prevented. The scraper 3 can be moved smoothly without being disturbed by the preceding scraping blades 41. In addition, even if the space | interval between the front-end | tips of the lifting blade 41 in the circumferential direction is set smaller than the diameter of the coin C, the coin C can be lifted up. However, it should preferably be set equal to or larger than the diameter of the coin C.

  Further, the rotating shaft 40 of the rotating body 4 is a gear that increases the rotational speed of the rotating shaft 40 by using a pair of wheels 42 and 42 that travel the collection machine main body 2 and rotation of the pair of wheels 42 and 42. And a mechanism unit 43. The pair of wheels 42 and 42 are fixed to both ends of a shaft 42a that passes through the left and right side frames 20b and 20b and rotate. The gear mechanism unit 43 includes a large-diameter gear 430, a small-diameter gear 431, and an intermediate gear 432 that meshes with the large-diameter gear 430 and the small-diameter gear 431. The large-diameter gear 430 is provided concentrically on the inner side of one wheel 42, is fixed to one end of the shaft 42 a, and rotates in conjunction with the rotation of the wheels 42 and 42. The small-diameter gear 431 rotates when the rotation of the large-diameter gear 430 is transmitted from the intermediate gear 432. Then, the rotating shaft 40 of the lifting blade 41 rotates as the small-diameter gear 431 rotates. The intermediate gear 432 is fixed to a shaft 432a rotatably supported on one side frame 20b and rotates, and transmits the rotation of the large-diameter gear 430 to the small-diameter gear 431 as described above. The large gear 430 and the intermediate gear 432 are set to have a diameter of 60 mm, for example, and the small gear 431 is set to have a diameter of 20 mm, for example. Accordingly, the small-diameter gear 431 rotates three times when the large-diameter gear 430 and the intermediate gear 432 rotate once. That is, since the coin C taken into the collection machine main body 2 is processed at triple speed, it can be collected efficiently.

  A distance L1 connecting the rotation center of the rotating shaft 40 (hereinafter sometimes simply referred to as the rotation center) and the other end of the scraper 3, a distance L2 connecting one end of the scraper 3, and a lifting blade from the rotation center. The relationship with the length l1 to the tip of 41 is L1 ≧ L2> l1. The reason for setting this condition will be described. First, the reason why the length L1 connecting the rotation center and the other end of the scraper 3 is not less than the length L2 connecting the rotation center and one end of the scraper 3 is that the coin C is moving from one end of the scraper 3 to the other end. In order to lift up without being disturbed by the lifting blade 41 that precedes in the rotation direction. Accordingly, the coin C is scooped up vigorously through the scraper 3. Further, the reason that the length L2 connecting the rotation center and one end of the scraper 3 is larger than the length l1 connecting the rotation center and the floor surface FL is that the scraping blade 41 has a vertical line P passing through the rotation center. This is because as the end of the scraper 3 is approached, it gradually returns to a straight line from the curved state. That is, when the scraping blade 41 is positioned at one end of the scraper 3, it is necessary to vigorously scrape the coin C. That is, when the above-described relationship between the three lengths is established, a condition for reliably collecting the coin C scraped up vigorously is established.

  Furthermore, in addition to the above conditions, the relationship between the distance H1 connecting the center of rotation and the floor surface FL and the height H2 of the scraper 3 is H1> H2, so that the coin C that has been vigorously scraped is more Conditions to ensure recovery are in place.

  The collection unit 5 is a space formed by the bottom plate 20a of the frame 20, the left and right side frames 20b and 20b, the rear frame 20c, and the top plate 21d of the cover 21, and the coin C is collected in this space.

  Next, a usage mode of the coin collecting machine 1 according to the present embodiment will be described. The coin collecting machine 1 collects coins C on the floor while moving along the floor surface FL. More specifically, as shown in FIG. 6, when the collecting machine body 2 is moved along the floor surface FL toward the place where the coin C is located, the coin C is taken into the inside from the opening 21 a of the collecting machine body 2. It is.

  At this time, the coin C moves from the front of the collecting machine main body 2 to the rear by the rotation of the lower half circumference of the lifting blade 41 along with the rotation of the rotating shaft 40.

  More specifically, as shown in FIG. 5, the scraping blade 41 abuts against the end portion of the coin C, and the coin C is positioned directly below the rotating shaft 40 by the rotational movement of the scraping blade 41. That is, the coin C is positioned between the front and rear raking blades 41 and 41. At this time, the center of the coin C slightly moves to the scraper 3 side with respect to the vertical line P connecting the rotation center and the floor surface FL, and one end of the scraper 3 comes into contact with the joint portion between the back surface of the coin C and the floor surface FL. (One end of the scraper 3 is inserted between the back surface of the coin C and the floor surface FL).

  The reason for this is to earn a distance for scooping up the coin C to the scraper 3 vigorously. That is, the rotation center when the tip of the scraping blade 41 abuts against the end of the coin C, and the scraping, rather than the distance connecting the rotation center and the end of the coin C opposite to the scraper 3. By increasing the distance connecting the end of the coin C with which the lifting blade 41 abuts, when the scraping blade 41 is pressed against the end of the coin C in a curved state, the coin C is slightly on the scraper 3 side. For this reason, the coin C will be scooped up by the scraper 3 accordingly.

  Further, by setting the distance l connecting the vertical line P and one end of the scraper 3 to be smaller than the diameter of the coin C, the coin C can be more reliably scooped up by the scraper 3.

  As shown in FIG. 7A, the lifting blade 41 gradually curves in an arc shape as it approaches the vertical line P, and is most curved on the vertical line P. That is, the scraping blade 41 has a force to scrape the coin C. The scraping blade 41 pushes up the coin C along the arc surface of the scraper 3 while being pressed against the end of the coin C in a curved state, while the coin C gradually moves from one end of the scraper 3 to the scraper 3. It moves to the middle part, and gradually tilts from a lying state with a large angle.

  Next, as shown in FIG. 7B, the coin C is pushed up to the other end side of the scraper 3 in a tilted state by further rotational movement of the lifting blade 41. When the tip of the scraping blade 41 is positioned at the substantially central portion of the scraper 3, approximately half of the coin C gets over the other end of the scraper 3. At this time, the lifting blade 41 has returned to a straight shape from the curved state, and is rapidly scraping the coin C.

  Next, as shown in FIG. 7C, the end of the inclined coin C is positioned at the other end of the scraper 3 by the linear scraping blade 41 gradually approaching the other end of the scraper 3. It becomes like this. When the end portion of the coin C exceeds the other end of the scraper 3, the coin C falls from the tilted state to the collecting portion 5 side and is collected.

  Then, the door 215 of the cover 21 is opened, and the coin C collected in the collecting unit 5 is discharged to the outside from the opening 200 of the rear frame 21c of the frame 20 and the opening 210 of the cover 21.

  As described above, the coin collecting machine according to the present embodiment can reliably collect the coin C.

  In addition, this invention is not limited to the said embodiment, Of course, it can add suitably in the range which does not deviate from the summary of this invention.

  For example, in the above embodiment, a pair of large diameter gears 430, 430, one small diameter gear 431, and an intermediate gear 432 are used to increase the rotational speed of the rotary shaft 40. As shown in FIG. 4, the belt 433 may be wound around the pair of large-diameter gears 430 and the rotary shaft 40 to increase the rotational speed of the rotary shaft 40.

  Moreover, you may rotate the rotating shaft 40 with an electric motor. In this case, it is preferable to adjust the scraping of the coin C by the scraper 3 by the reduction gear mechanism.

  Moreover, in the case of the said embodiment, although it was set as the scraper 3 which has a circular arc surface, an inclined surface may be sufficient. That is, the scraper 3 only needs to be able to scoop up the coin C.

  Moreover, in the case of the said embodiment, although the whole plate-shaped raking blade | wing 41 was curved, it should just be curved at least at the front-end | tip part. That is, it is only necessary that the scraping blade 41 can be bent so as to rake up the coin C vigorously.

  DESCRIPTION OF SYMBOLS 1 ... Coin collection | recovery machine, 2 ... Recovery machine main body, 21a ... Opening, 201 ... Through-hole, 3 ... Scraper, 4 ... Rotating body, 40 ... Rotating shaft, 41 ... Raising blade, 42 ... Wheel, 43 ... Gear mechanism part 5 ... Recovery part, C ... Coin, FL ... Floor, P ... Vertical line

Claims (5)

A scraper having one end and the other end, and having an inclined surface or a curved surface with one end positioned below the other end;
A rotating body provided at one end of the scraper;
A coin collecting machine including a coin collecting unit provided on the other end side of the scraper,
The rotating body is a rotating shaft that extends in the same direction as one end of the scraper, and includes a rotating shaft that can rotate in a fixed position , and flexible scraping blades that are radially arranged with respect to the rotating shaft. Prepared,
The scraping blade is configured such that at least the tip side can be deformed in a curved shape by contact with the floor. together is set longer than the distance connecting the spacing between the tips of the scraping fried blade adjacent in the circumferential direction, a coin collection device, characterized in Rukoto set above the coin diameter.   2. The coin collecting machine according to claim 1, wherein a length connecting an intersection of a vertical line passing through the rotation center of the rotating shaft and the floor and one end of the scraper is set to be shorter than a diameter of the coin.   The length connecting the rotation center of the rotating shaft and the other end of the scraper is set to be longer than the length connecting the rotation center of the rotating shaft and one end of the scraper, and the length connecting the rotation center of the rotating shaft and one end of the scraper Is set longer than the length connecting the rotation center of the rotation shaft and the floor.   4. The coin according to claim 1, wherein a length connecting the rotation center of the rotating shaft and the floor is set to be longer than a length connecting the other end of the scraper and the floor. 5. Recovery machine. A wheel that rolls on a floor surface, and a gear mechanism that transmits the rotational force of the wheel to the rotation shaft, the gear mechanism that accelerates the rotation of the rotation shaft. Item 5. A coin collecting machine according to any one of items 1 to 4 .