JPS6059632B2 - Coin diameter sorting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coin sorting device in an automatic vending rack or the like, and relates to an improvement of a mechanism for sorting the outer diameter of coins.

It is well known that vending machines are equipped with a sorting mechanism based on outer diameter, thickness, material, etc., in order to sort out the type of coins inserted or whether they are genuine or fake.

Among these sorting mechanisms, a conventional example of a coin outer diameter sorting mechanism will be described with reference to FIGS. 1 and 2.

Fig. 1 is a front view of the main part, and Fig. 2 is a vertical sectional view seen from the side, showing a passage wall 1 having an inclination angle and a tilt angle so that coins inserted from a coin slot (not shown) roll. A coin passage 7 is provided therebetween. Tilted lower passage wall 1a
A small-diameter coin notch 3 and a large-diameter coin notch 2, into which coins fall under their own weight, are provided slightly apart from each other and arranged one behind the other in the direction of inclination of the coin passage 7. A feeder 4 is provided on the side of the coin passage 7 along the passage so that when the coin reaches each notch 2 or 3, it can easily move out of the notch. 5 indicates a large diameter coin, 6 indicates a small diameter coin, the large diameter coin cutout 2 is cut out to be somewhat larger than the outer diameter of the large diameter coin 5, and the small diameter coin cutout 3 is cut out to be slightly larger than the outer diameter of the small diameter coin 6. It is slightly larger than the outer diameter of the large-diameter coin 5 and has a cutout smaller than the outer diameter of the large-diameter coin 5.

In this way, the small J-diameter coins 6 transferred from the direction of arrow A are transferred from the notch 3 in the direction of arrow B, and are stored in a small-diameter coin storage cylinder or storage box (not shown), and the large-diameter coins 5 are The coin passes through the notch 3 to reach the notch 2, moves out from the notch 2 in the direction of arrow B, and is stored in a large-diameter coin storage tube or storage box (not shown).

By the way, the conventional coin sorting device described above has the possibility of causing erroneous sorting due to the following causes and conditions.

That is, (1) when coins roll continuously, a small-diameter coin is pushed by a subsequent coin while rotating in the small-diameter coin notch 3, and passes by jumping over the notch 3 without rolling out. Sometimes I put it away. (2) If the vending machine is installed in an inclined state so that the angle of inclination of the passageway wall 1 shown in Fig. 2 is small, the angle of inclination of the coin passageway cannot be obtained sufficiently in relation to the coin sorting device. Because of this, the small-diameter coins are separated from the notched passage wall, and the small-diameter coins do not have enough rotation power to roll out. (3)
When the inclination angle of the coin passage of the coin sorting device becomes large depending on the installation condition of the vending machine, the rolling speed of the coins increases, and small-diameter coins may swing and pass through the notch 3. Therefore, special attention has been required regarding the installation conditions of conventional vending machines. However, there are many locations with poor location conditions for installation, and it is often difficult to maintain the permissible range of inclination and tilt angle compared to horizontal installation. It has been desired to develop a coin sorting device that can ease such installation conditions and prevent coins from passing due to continuous input. From this point of view, in response to the above-mentioned demands, the present invention aims to provide a coin outer diameter sorting device which eliminates the above-mentioned defects and has high sorting performance and reliability.

Under adverse conditions for the first small-diameter coin to pass through the notch: (1) When it is pushed by the following coin; (2) When the inclination angle of the coin passage is insufficient; (3) When the inclination angle of the coin passage is large; Actually, when a rolling coin comes into contact with a passage wall having a notch, it tends to roll out of the notch and fall.

However, the passage width of the coin passage has an allowance for the thickness of the coin in order to prevent coins from clogging, so the coin meanderes through the allowance gap without touching the passage wall on the side where the notch is located, so that the coin is transferred out. It turned out that it wasn't possible. From this, it is thought that most of the problems can be solved by suppressing the rolling force of the oscillating coin and guiding it so that it rolls in contact with the passage wall side where the notch is located. A movable braking piece 9 with an acute triangular shape as shown is provided, and its rotational fulcrum is slid, and the side opposite to the passage wall 1a with the notch is placed so that the side 9b, which has a large volume, overhangs toward the coin passage side due to its weight. An experiment was carried out in which the device was rotatably supported within a notched groove 10 provided in the passage wall 1b. As can be seen from the figure, the purpose of this plan is for the braking surface 9b side of the acute triangular movable braking piece 9 to always protrude into the coin passage. Alternatively, the movable brake piece 9 is rotated by colliding with the coin 9b, and the rolling force of the coin is suppressed by the contact resistance J with the brake surface, and the coin is guided toward the passage wall 1a having the notch. In this case, if the rotation axis of the movable brake piece 9 is supported in the horizontal direction, there is no problem since the large-volume side 9b always hangs down, but the movable brake piece 9 extends almost perpendicularly to the wall surface of the passage wall 1b. The axis of the brake piece is erected and held at an angle to the left, similar to the wall surface. Therefore, even though the wall in this case is tilted,
In order to apply rolling force to the coin, it cannot be tilted too much, so as shown in the opening of Fig.
It may stop in a position parallel to the In this case, as a matter of course, there is no control over the oscillating coins, and the effect of preventing erroneous sorting is lost. It is also conceivable to spring the brake piece 9 so that it always extends into the passage, but it is difficult to adjust the spring force to prevent coins from jamming. An object of the present invention is to eliminate these points and provide a brake piece with a novel configuration.

According to the coin outer diameter sorting device of the present invention, as a means for suppressing the rolling force of the coins that have swung in the coin passage before the first notch, a passage wall opposite to the passage wall with the notch is used. A continuous first column is rotatably supported on the coin passageway and extends over the coin passage.
, which has a second braking curved surface, and a coin that has left the notched passage wall and has rolled or swung collides with the braking curved surface, and the frictional resistance with the braking curved surface that is pushed by the colliding coin and rotates. The first and second braking curved surfaces are configured to protrude into the coin passage no matter what position or attitude they are in so as to suppress the rolling force of the coin and guide the coin toward the passage wall having the notch. By providing a movable brake piece, the small-diameter coins can be easily moved out of the notch, and erroneous sorting can be prevented.

The following description will be made with reference to FIGS. 3 to 5 of the embodiment showing its configuration, and FIGS. 6 and 7 showing the operation process. The explanation of the same parts as in FIGS. 1 and 2 will be omitted, and only the different parts will be described. The passage wall 1 on the opposite side from the passage wall 1a with the notch
A movable brake piece 8 is rotatably supported within a notched groove 10 provided in b. This movable brake piece 8 has two consecutive
It has two parabolic braking curved surfaces 8a and 8b, and the braking curved surfaces 8a and 8b are such that any one of them protrudes into the coin passage no matter what posture the braking piece 8 is in.
Furthermore, a small clearance for coins to pass is maintained between the instantaneous top of the braking curved surface that changes due to rotation and the notched passage wall 1a surface. Therefore, the coin that has rolled along the passage wall 1a surface does not come into contact with either of the braking curved surfaces 8a and 8b of the brake piece 8, but the small-diameter coin can be rolled through the notch 3 on the inclined passage wall 1a side. Transfer easily. The mounting position of the brake piece 8 is to make it easier to brake the coin that has been rocking and to move it out of the notch, so as you will understand in the operation process described later, the brake piece 8 should be installed above the center of the rolling coin and on the braking surface. A position where the portion 8b can be seen from the notch 3 is preferable. Next, the operation process will be explained in the case of small diameter coins with reference to FIGS. 6A to 6B.

FIG. 6A shows a standby state, and the brake piece 8 is in a standby position as shown in the figure. When the small-diameter coin 6 rolls, it collides with the braking curved surface 8a of the braking piece 8 as shown in the opening. As a result, the small diameter coins received a large impact force due to the collision,
It receives a force induced in the direction of the small-diameter coin notch 3. At this time, the brake piece 8 operates so that the brake curved surface 8b narrows the path as much as the brake curved surface 8a is pushed by the coin.
After that, as shown in C, the small diameter coin rolls onto the braking curved surface 8.
It collides with b and rolls. Due to this collision, the small-diameter coin is forcibly changed direction, guided to the small-diameter coin notch 3, and falls from the notch 3. Since the brake curved surface 8b is pressed by the coin guided into the notch 3, the brake piece 8 returns to the parallel state shown in A, where the brake curved surfaces 8a and 8b are balanced. However, in relation to the above-mentioned rotation axis, the braking curved surfaces 8a and 8b' do not always project into the coin path in a balanced state. However, even if the braking curved surface 8a side largely protrudes into the passageway, if a coin collides, the coin will be guided as described above, and even if the braking curved surface 8a side is retracted into the notch groove 10, the braking curved surface 8b applies a brake to the coins so that small-diameter coins can definitely roll out from the small-diameter coin notch. Figures 7A to 7E show the operation process of the brake piece 8 when a large-diameter coin rolls into the same coin path; The large diameter coin 5 that has been made is similar to the case of the small diameter coin 6,
As shown in the introduction, it collides with the braking curved surface 8a. Thereafter, the brake piece 8 rotates while bringing the large-diameter coin 5 closer to the passage wall 1a having the notch. The advancing large-diameter coin then collides with the braking curved surface 8b as shown in (c), and then receives a force guided to the small-diameter coin notch 3 as shown in (2). However, in the case of large-diameter coins 5, the outer diameter of the coin is larger than the size of the small-diameter coin notch 3, so as shown in E, the passage wall 1a is
It passes through the notch 3 along. Then, the coin reaches the next large-diameter coin notch 2 and is stored in a large-diameter coin storage tube or storage box (not shown). As described above and as can be understood from the drawings, according to the coin outer diameter sorting device of the present invention, one of the braking curved surfaces of the movable braking piece having a continuous parabolic curved surface protrudes into the coin passage. The coins are rotatably arranged on the passage wall opposite to the passage wall with the notch, which is an adverse condition in which small-diameter coins can pass through without rolling out of the notch. (2) When the inclination angle of the coin passage is small and the coin rolls away from the notched passageway wall and the rotational force is insufficient. (3) When the inclination angle of the coin passage is large and the rolling speed of the coin is insufficient. In the case of rapid rocking, all coins other than those that obediently roll along the notched passageway wall are controlled by the movable braking piece of the present invention, thereby preventing erroneous sorting.

This is an inexpensive and highly reliable coin diameter sorting device that solves the difficult problem of separating small-diameter coins and large-diameter coins on the same coin path, which was said to be prone to missorting, with a simple structure. The fact that we have been able to provide this is a major contribution.

[Brief explanation of the drawing]

Fig. 1 is a front view of the main parts of a conventional coin diameter sorting device, Fig. 2 is a side vertical sectional view, Fig. 3 is a front view of the main parts of a coin diameter sorting device according to an embodiment of the present invention, and Fig. 4 is a side vertical sectional view of FIG. 3, FIG. 5 is a perspective view of a movable brake piece according to the present invention, and FIGS.
FIG. 8A is a side cross-sectional view of the main part of the coin diameter sorting device showing an example problem for explanation. 1... Passage wall, 2... Notch for large diameter coins, 3... Notch for small diameter coins, 4...
Relief groove, 5... Large diameter coin, 6... Small diameter coin, 7... Coin passage, 8... Movable brake piece, 8a, 8b... ...braking surface.

Claims (1)

[Claims] 1. In order to sort coins rolling in an inclined coin passage, the passage wall of the coin passage is tilted, and a notch with a size corresponding to the diameter of the coins to be sorted is provided in the tilted lower passage wall, A coin having a diameter smaller than the size of the notch is allowed to roll out from the notch, and the coin is rotatably supported on a passage wall facing the notch, and is attached to the coin passage on both sides of the support point. A braking piece having a protruding braking curved surface is provided, and when the braking curved surface is fully extended into the coin passage by rotation of the braking piece, a small gap is created between the passage wall having the notch and a passage through which a coin can pass. A coin diameter sorting device characterized by a coin diameter sorting device.