JPH04192098A - Coin discharging device - Google Patents

Abstract

PURPOSE:To surely drive a desired wiper with a simple and inexpensive structure by driving a pair of wipers in accordance with one reversible motor. CONSTITUTION:A reversible motor M2 is provided for a pair of crank gears, and the number of coins to be discharged is calculated, and the direction and the rotational frequency of the reversible motor M2 are determined in accordance with this number, and this motor is rotated. An epicyclic gear 35 is engaged with a sun gear 32, and a frictional force acts between the epicyclic gear 35 and a rocking arm 34, and therefore, the rocking arm 34 is rocked in the rotating direction of the sun gear 32, and the epicyclic gear 35 is engaged with a crank gear K5 on the rocking side. The rotation of the sun gear 32 is transmitted to the crank gear K5 through the epicyclic gear 35, and a required wiper Q is driven to discharge coins. Thus, the structure is made simple and inexpensive, and the wiper is surely operated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a coin dispensing device used in automatic vending machines, currency exchange machines, and the like.

(Prior Art) Various coin dispensing devices of this type have been known.

FIG. 7 shows a typical example of a coin dispensing mechanism.

In this coin dispensing mechanism, a plurality of coin storage cylinders 2 in which coins 1 are stored are arranged in parallel, a wiper 3 is arranged at the bottom of the coin storage cylinder 2, and a selection drive part 4 of the wiper 3 is further arranged.

The selection drive unit 4 includes a drive motor 5, a crank plate 6, a main wiper 7, a worm gear 8, a trigger bin 9, etc. When the worm gear 8 is rotated, the trigger bin 9 falls into a cam groove 9a. wiper bin 9b
falls into the inner part of main wiper 7, and main wiper 7 and wiper 3 are connected.

Therefore, when the drive motor 5 is rotated, the main wiper 7 is driven by the action of the crank plate 6, the wiper 3 connected to the main wiper 7 is moved forward and backward, and the wiper 3 not connected to the main wiper 7 is stopped. Therefore, you can selectively pay out coins.

(Issue a to be solved by the invention) In the above conventional device, the drive motor 5 operates each wiper 3 at a time.
It has the advantage of being able to drive selectively.

However, for this purpose, the worm gear 8 as described above is required.
There is a problem in that the mechanism for engaging and disengaging the main wiper 7 and the wiper 3 is complicated by using the trigger bin 9, the wiper bin 9b, etc.

Therefore, the present invention was made to solve the above problems, and its purpose is to have a simple and inexpensive structure;
Another object of the present invention is to provide a coin dispensing device that can be operated reliably.

(Means for Solving the Problems) A coin dispensing device according to the present invention for the above-mentioned purpose includes a plurality of coin storage cylinders for storing coins for dispensing, and a lower part of each coin storage cylinder that moves forward and backward in the radial direction of the coin storage cylinder. In a coin dispensing device, the coin dispensing device includes a wiper that is freely provided and pulls out coins stored in a coin storage tube one by one from an opening at the bottom of the coin storage tube, and a drive section that moves the wiper forward and backward. is formed with a cam groove extending in a direction intersecting the forward and backward direction of the wiper, and the drive unit is a crank gear provided corresponding to each wiper and having a crank pin on its surface that engages each cam groove of the wiper. and a crank gear 1 in which any two of the above-mentioned crank gears form a set.
a forward/reverse motor provided for each pair; a sun gear driven by the rotation of each forward/reverse motor; and a swing arm provided swingably around a gear shaft of the sun gear. , a planetary gear is provided on the swing arm so as to be rotatable with a predetermined load torque with respect to the swing arm, and meshes with the sun gear, and when the forward/reverse motor rotates, the forward/reverse motor is The oscillating arm oscillates in each rotational direction, and the planetary gear meshes with the crank gear on the oscillated side directly or via an intermediate gear.

In addition, a plurality of coin storage cylinders that store coins for dispensing,
A detection rod is pushed into a common base with a wiper that is provided to move forward and backward in the radial direction of each coin storage tube and pulls out the coins stored in the coin storage tube one by one from the opening at the bottom of the coin storage tube. A contact switch that closes a circuit by closing the circuit is arranged corresponding to an arbitrary number of the coin storage cylinders, and each detection rod can enter into the coin storage cylinder through a window provided in the corresponding coin storage cylinder. In the coin dispensing device, the coin dispensing device includes a contact switch array that is guided toward and away from the coin storage cylinder, and a drive unit that moves the wiper and the contact switch array forward and backward, each of which includes a base body of each wiper and the contact switch array. , a cam groove extending in a direction intersecting the advance/retreat direction of the wiper and the advance/retreat direction of the contact switch array is formed, and the drive section is provided corresponding to the base body of each wiper and the contact switch array, and One for each set of crank gears, each set consisting of a crank gear having a crank pin on its surface that engages in each of the cam grooves, and any two of the crank gears provided to the wiper and the base body. a forward/reverse motor provided to the front/reverse motor, a sun gear driven by the rotation of each of the forward/reverse motors, a swing arm swingably provided around the gear shaft of the sun gear, and a swing arm on the swing arm. and a planetary gear which is rotatably provided to the swing arm with a predetermined load torque and meshes with the sun gear, and when the forward/reverse motor rotates, the forward/reverse motor rotates in each direction of rotation. It is characterized in that the swing arm swings and the planetary gear meshes with the crank gear on the swinging side directly or via an intermediate gear.

(Operation) The number of coins to be paid out is calculated, and in accordance with this, it is determined which forward/reverse motor should rotate in which direction and how many times, and the corresponding forward/reverse motor is thereby rotated.

The planetary gear meshes with the sun gear, and a frictional force acts between the planetary gear and the swing arm, so when the forward/reverse motor rotates and the sun gear rotates, the swing arm first It is swung in the direction of rotation of the sun gear, and the planet gear meshes with the crank gear on the swung side.

As a result, the rotation of the sun gear is transmitted to the crank gear via the planetary gear, intermediate gear, etc., the required wiper is driven, and coins are dispensed. The contact switch array is also driven in the same manner to detect the presence or absence of coins in each storage cylinder.

(Embodiment) A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

Figures 1 and 2 are side sectional views of the coin dispensing device lOO;
The figure is a front view, and FIG. 4 is a plan view.

The coin dispensing mechanism is housed in the casing 11,
The casing is detachably attached to a predetermined part of a vending machine (not shown) or the like.

FIG. 3 is a plan view schematically showing the positions and coin dispensing directions of coin storage cylinders P (hereinafter simply referred to as storage cylinders). As shown, seven storage cylinders P are provided in this embodiment.

As a storage tube for regular change, 10 yen (Pl), 50 yen
For yen (P2), for 100 yen (P3), for 500 yen (P4)
Although it is sufficient to provide about four storage cylinders corresponding to coins such as ), in this embodiment, three storage cylinders P5, P6, and Pl are additionally provided as spares.

Of this storage cylinder, 5 of them are P2, Pl, P3, P5, and P6.
Two storage cylinders, P4 and Pl, are arranged in the front row of the casing 11, and two storage cylinders P4 and Pl are arranged in the rear row of the casing 11, one step higher than those in the front row. P4, P
This is to position the drive section below the storage cylinder of 1. Further, in the space between the storage cylinders P4 and P7, it is preferable to arrange a reading section for inserted coins, etc., a calculation section for change, etc.

As shown in FIGS. 1 and 2, a receiving plate 12 extending halfway is provided at the bottom of the storage tube P, and the required number of coins 13 are supported by the receiving plate 12 inside the storage tube P. It can be stored.

Q is a wiper, which is provided corresponding to the lower part of each storage tube P, and is driven by a drive unit to be described later, so that it can move forward and backward in the radial direction of the storage tube P, and wipes the coins 13 in each storage tube P. It can be sent out to one person. That is, the rear end of the wiper Q is formed with a cross-shaped cross section (FIG. 3), and this cross-shaped portion is guided into a guide hole 15 formed in the guide portion 14, which has a cross-shaped cross section. It can move forward and backward in the up, left, and right directions. Further, on the tip side of the wiper Q, there is a protruding pawl Qa that can pass through a slit formed in the moving direction of the wiper from the lower part of the storage cylinder P to the receiving plate 12, so that the wiper Q can be moved to the right in FIG. By moving, the claw Qa pulls out the coin 13 toward the lower open part of the single-coin storage cylinder P, and causes it to fall from the passage 16 of the casing 11 into the change receptacle (not shown) of the vending machine main body. .

In addition, wipers Q4 and Q for storage cylinders P4 and P7 in the upper row of the rear row
7 is provided so that it can move forward and backward in a direction perpendicular to the one in the front row, that is, in the left and right direction in FIG. It is designed to be pulled out and dropped from the passage 17 into the change receptacle.

The direction of coin dispensing in each of the storage tubes P is indicated by solid arrows in FIG.

Next, in FIG. 1, reference numeral 20 denotes a contact switch array, which is disposed within the casing 11 at the rear of the storage cylinder P.

The contact switch array 20 is provided so as to be movable forward and backward in the direction of the storage tube P by being driven by a drive unit to be described later, and when the contact switch array 20 moves in the direction of the storage tube P, the contact switches provided corresponding to each storage tube P are The detection rod 22 of 21 enters the storage tube P through the window 23 opened in the storage tube P, and if the coin 13 is present in the storage tube P, the detection rod 22 is pushed into the contact switch 2r, and the contact part is inserted into the board. The existence of the coin 13 is determined by making contact with the board and closing the circuit on the board, and since the detection rod 22 will not be pushed in unless there are more than the required amount of coins 13, it is determined from this that the change is out. .

For storage cylinders P4 and P7 provided in the upper row of the rear row, contact switches 24 and 25 (Fig. 3) provided between storage cylinders P4 and P7 can move forward and backward toward the corresponding storage cylinders P4 and P7, respectively. It is provided. This drive mechanism will be described later.

In this embodiment, when driving the seven wipers Q corresponding to the seven storage cylinders P, the forward and reverse motor M1 drives the wipers Q1 and Q3, the forward and reverse motor M2 drives the wipers Q5 and Q6, and the forward and reverse motor M3 drives the wipers Q1 and Q3. to drive the wipers Q4 and Q7, that is, one motor can selectively drive the two wipers, and the forward/reverse motor M4 can selectively drive the wiper Q2 and the contact switch described above. I made it.

The driving of wipers Q1 and Q3 by forward/reverse motor M1 and the driving of wipers Q5 and Q6 by forward/reverse motor M2 are as follows.
Two adjacent wipers are driven by one forward/reverse motor, and the mechanism is the same, so the forward/reverse motor M
2, the mechanism for driving wipers Q5 and Q6 will be explained.

The forward/reverse motor M2 is installed on the guide portion 14 at a position approximately midway between the wipers Q5 and Q6.

As shown in FIG. 2, the motor shaft 30 has a sun gear shaft 3.
1 are connected via a joint, the sun gear shaft 31 extends into the space below the guide part 14, a sun gear 32 is fitted in the middle part, and the tip part is connected to a cylindrical bearing 33 fixed to the bottom surface of the casing. It is embedded.

A swinging arm 34 is provided on the bearing 33 and is swingable around the bearing 33. A planetary gear 35 meshing with the sun gear 32 is mounted on the swinging arm 34 and is rotatable around a shaft 36. It is being Further, a friction plate 38 is inserted between the swinging arm 34 and the surface of the planetary gear 35 via a disc spring 37, so that the planetary gear 35 rotates with a predetermined load torque with respect to the swinging arm 34.

As shown in FIGS. 1 and 5, crank gears 5 and K6 are rotatably disposed on the bottom surface of the casing on both sides of the planetary gear 35! 5 on this crank gear.
The planetary gear 35 meshes with K6 when the swing arm 34 rotates in the approach direction.

5 on the crank gear, crank pin 40.40 on K6
are provided in a protruding manner, and each crank pin 40.40 is engaged in a cam groove 41.41 formed on the lower surface of each wiper Q5, Q6 in a direction perpendicular to the direction of movement of the wiper (Fig. 1). .

Reference numeral 42 denotes a rotation detecting section consisting of a Hall element or the like, which detects the number of rotations of the crank gear 5, K6.

When the forward/reverse motor M2 is driven so that the sun gear 32 rotates in the direction of the arrow in FIG. Therefore, the swing arm 34 is rotated by the rotation of the sun gear 32, and the planetary gear 35 becomes in mesh with the corresponding crank gear 5. Here, rotation is transmitted from the sun gear 32 to the crank gear 6 via the planetary gear 35, and every time 6 rotates once to the crank gear, the wiper Q6 makes one reciprocation, and during that time, the coin 13 is removed by the claw Qa.
is pulled out and falls into the change receptacle. The number of coins to be withdrawn is determined separately by a calculation control section. The number of rotations of the crank gear 6 is detected by the rotation detecting section 42, and the forward/reverse motor M2 is stopped when the crank gear rotates a predetermined number of rotations.

When drawing out the coins in the storage tube P5, the forward/reverse motor M2 is instructed to rotate in the opposite direction to the above. As a result, the swing arm 34 is rotated in the opposite direction, and the planetary gear 35 meshes with the crank gear 5, so that the wiper Q5 is driven forward and backward. In this way, 10 yen coins and 100 yen coins are selectively withdrawn.

Wipers Q4 and Q7 of storage cylinders P4 and P7 (7) [t
One mechanism is as follows.

As shown in FIG. 3, the wiper Q4 has a casing 11
A crank pin 40 protruding from the crank gear 4, which is rotatably provided at Then, it will be understood that it moves left and right in the upper part of FIG. The wiper Q7 also has a similar configuration and is moved left and right by rotation of the crank gear 7.

On the rotating shaft of the forward/reverse motor M3, there is a sun gear 32 as described above.
is fixed, and a swinging arm 34 is swingably provided on the bearing of the sun gear 32 (see FIG. 2). 35
is rotatably attached, and this planetary gear 35 meshes with the sun gear 32. Then, in the same manner as described above, when the forward/reverse motor M3 rotates, the swing arm 34
3, the rotation of the sun gear 32 causes the crank gear to rotate from the planetary gear 35 to the gears X1, X2, X.
The power is transmitted from the planetary gear 35 to the crank gear 7 through the gear group No. 3 and through the gear group No. 3, X4 and X5, and the wipers Q4 and Q7 are moved left and right, respectively (Fig. 3). .

Next, the drive mechanism of the wiper Q2 and the contact switch will be explained.

As shown in FIG. 1, the contact switch array 20 described above can move forward and backward in the direction of the storage cylinder P by having the base body 45 movably guided by the guide portion 46 of the casing 11. A crank pin 40 provided on the crank gear 8 is engaged in a cam groove 41 provided on the lower surface of the base body 45, so that when the crank gear 8 rotates, the contact switch array 20 moves left and right in FIG. do. The crank gear 8 is connected via gears x6,

Further, the contact switch 24 for the storage cylinder P4 is connected to a crank pin 40 protruding from the crank gear at 9, as shown in FIG.
is engaged in a cam groove provided in the base body 48 that supports the contact switch 24, and as a result, when the crank gear 9 rotates, it moves left and right.

In addition, in the contact switch 25 for the storage cylinder P7, a crank pin 40 protruding from the crank gear KIO that meshes with the crank gear 9 engages in a cam groove of the base body 49. is rotated, and the crank gear KIO meshing therewith rotates, thereby moving left and right in conjunction with the left and right movement of the contact switch 24.

Gear Xl provided on the rotating wheel 50 of 9 on the crank gear
1 meshes with the gear X12 provided on the upper part of the shaft 11 shown in FIG.

Therefore, when the shaft 47 rotates, the contact switch array 20 and the setting switches 24, 25 are simultaneously driven.

As shown in FIG. 6, the sun gear 32 fixed to the rotating shaft of the forward/reverse motor M4 for driving the wiper Q2 and the contact switch is provided with a dogleg-shaped swinging arm 34 that is swingable about the bearing as shown in FIG. A planetary gear 35a and a planetary gear 35b are meshed with each other on both ends of the planetary gear 35a and 35b, which generate a frictional force using disc springs in the same manner as described above. K2 is a crank gear formed similarly to the crank gear for driving the wipers Ql, Q3, etc., and a crank pin protruding from the upper surface engages in a cam groove provided in the wiper Q2. The forward/reverse motor M4 rotates and the swing arm 3
4 swings, the planetary gear 35a meshes with the crank gear 2, and when the crank gear 2 rotates, the wiper Q2 is driven and coins are dispensed. The forward/reverse motor M4 is rotated in the reverse direction, the swinging arm 34 is swung in the opposite direction, and the planetary gear 35b is rotated by the gear X provided at the lower part of the shaft 47.
13, the shaft 47 is rotated, and as a result, the contact switch array 20 and the contact switches 24 and 25 are moved forward and backward as described above, and the presence or absence of coins in each storage cylinder P is detected.

The overall operation is summarized as follows.

First, the forward/reverse motor M4 is driven, the contact switch array 20, the contact switches 24, 25 are driven, and each storage cylinder P
The presence or absence of coins inside is confirmed. If the required amount of coins 13 is not present, a message such as out of change is displayed. Furthermore, P5, P6
, P7 are for auxiliary purposes, and even if the storage tubes P1 to P4 are empty, the auxiliary storage tubes P5 to P7 for the corresponding denominations are used.
If P7 is not empty, no change will be displayed.

When coins and banknotes are inserted into the vending machine and the item selection switch is pressed, the amount of change is determined, and depending on the amount of change, the machine automatically rotates which of the forward and reverse motors and how many times in which direction. Then, as described above, a predetermined forward/reverse motor is driven to rotate to dispense coins.

In the above embodiment, the sets of storage cylinders driven by each forward/reverse motor are arranged such as a contact switch array for 10 yen, an auxiliary storage cylinder for 50 yen, an auxiliary storage cylinder for 100 yen, and an auxiliary storage cylinder for 500 yen. If the cylinders are combined to form each set, coins of 10 yen, 50 yen, 100 yen, and 500 yen can be paid out at the same time, thereby shortening the payout time.

The storage cylinder P may be the minimum necessary one, such as one for 10 yen, one for 50 yen, one for 100 yen, one for 500 yen, etc.

It is preferable to use a contact switch as the sensor for detecting coins in the storage cylinder as described above because it can be made at low cost.
Of course, the sensor is not limited to this, and for example, an optical sensor can be used, and in this case, forward and backward movement is not necessary.

Although various preferred embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. be.

(Effects of the Invention) According to claim 1, a set of two wipers is driven in correspondence with one forward/reverse motor, so although the number of motors increases, it is not necessary to drive the main wiper as in the conventional case. There is no need to adopt a complicated mechanism for selectively connecting the wipers, the structure is simple, it can be provided at low cost, and a set of two wipers can be selected by selecting the rotation direction of the forward/reverse motor. Therefore, the desired wiper can be reliably driven.

According to claim 2, in addition to the above effects, since the selection switch array can be driven selectively with one wiper, there is no need for a separate drive device for the selection switch array, and the structure is simplified. can be achieved.

[Brief explanation of the drawing]

Figures 1 and 2 are partial side sectional views of the coin dispensing device;
Figure 3 is a front view, Figure 4 is a plan view showing the arrangement of the coin storage tubes, Figure 5 is an explanatory diagram showing the meshing status of the planetary gear and crank gear, and Figure 6 is the arrangement of each crank gear. FIG. FIG. 7 shows a partial side sectional view of a conventional coin dispensing device. DESCRIPTION OF SYMBOLS 10... Coin dispensing device, 11... Casing, 13... Coin, 20... Selection switch array, 22... Detection rod, 23... Window, 32...
・Sun gear, 34... Swing arm, 35... Planetary gear, 40... Crank pin, 41... Cam groove,
P, PI-P7...coin storage tube, Q, Ql~Q7,...wiper, K1~KIO...crank gear. Figure 1 Figure 2 Figure 5

Claims (1)

[Scope of Claims] 1. A plurality of coin storage tubes for storing coins for dispensing, and a coin storage tube provided at the bottom of each coin storage tube so as to be movable in the radial direction of the coin storage tube, and stored in the coin storage tube. A coin dispensing device comprising a wiper that pulls out coins one by one from an opening at the bottom of a coin storage cylinder, and a drive unit that moves the wiper forward and backward, each wiper having a cam groove extending in a direction intersecting the forward and backward direction of the wiper. is formed, and the drive unit includes: a crank gear that is provided corresponding to each of the wipers and has a crank pin on its surface that engages in each of the cam grooves of the wiper; and a set of any two of the crank gears. a forward/reverse motor provided for one set of crank gears, a sun gear driven by the rotation of each of the forward/reverse motors, and a sun gear provided swingably about a gear shaft of the sun gear; and a planetary gear that is provided on the swing arm so as to be rotatable with a predetermined load torque with respect to the swing arm and that meshes with the sun gear, and the forward/reverse motor rotates. A coin dispensing device characterized in that the swing arm swings in each direction of rotation of a forward and reverse motor, and the planetary gear meshes with the crank gear on the swinging side directly or via an intermediate gear. . 2. A plurality of coin storage tubes that store coins for dispensing, and an opening at the bottom of the coin storage tube, which is provided so that each coin storage tube can move forward and backward in the radial direction, and allows the coins stored in the coin storage tube to be inserted one by one. A wiper that can be pulled out from the coin storage cylinder, and a contact switch that closes a circuit when a detection rod is pushed in on a common base are arranged corresponding to any number of the coin storage cylinders, and each detection rod corresponds to the contact switch. a contact switch array that is guided toward and away from the coin storage cylinder so as to be able to enter the coin storage cylinder through a window provided in the coin storage cylinder; and a drive unit that moves the wiper and the contact switch array forward and backward. In the coin dispensing device, the base of each of the wipers and the contact switch array includes:
A cam groove is formed extending in a direction intersecting the advancing and retracting direction of the wiper and the advancing and retreating direction of the contact switch array, and the drive section is provided corresponding to the base of each wiper and the contact switch array, and One for each set of crank gears, each set consisting of a crank gear having a crank pin on its surface that engages in each cam groove, and any two of the crank gears provided to the wiper and the base body. a forward/reverse motor provided; a sun gear driven by rotation of each of the forward/reverse motors; a swinging arm swingably provided around a gear shaft of the sun gear; and a swing arm mounted on the swinging arm. A planetary gear is provided to be rotatable with a predetermined load torque with respect to the swing arm and meshed with the sun gear, and when the forward/reverse motor rotates, the swing arm is rotated in each direction of rotation of the forward/reverse motor. A coin dispensing device characterized in that the planetary gear meshes directly or via an intermediate gear with the crank gear on the side on which the movable arm swings.