JPH0816865A - Shutter opening/closing mechanism - Google Patents

Abstract

PURPOSE:To provide a mechanism where the operation time of a shutter can be shortened and a danger that the hand of a customer is sandwiched by the shutter can be avoided by speeding up the speed of the opening operation of the shutter faster than a closing operation. CONSTITUTION:When the shutter 2 is set in an open state, a motor 7 positively rotates and gears 14-19 respectively positively rotate in the directions of arrows D, E and G. Then, feeding force is added to a rack 3 in accordance with the rotation of the gear 19, and the shutter 2 integrally moves to the direction of an arrow H with the rack 3 so as to execute the closing operation. When the shutter is set in a closed state, the motor 7 inversely rotates and the gears 17-19 respectively rotate in opposite directions to the opening operation so as to execute the closing operation. The gear ratio of gears 14 and 17 engaged with planetary gear 13 and gears 15, 18 which are coaxially provided is set to satisfy the relation of Z15/Z14>Z18/Z17 so that it becomes open > close. Even if the motor 7 is driven in positive/inverse directions at prescribed rotational speed, the shutter 2 can be open-operated at speed faster than close operation speed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter opening / closing mechanism provided in an automatic transaction device or the like.

[0002]

2. Description of the Related Art In a financial institution such as a bank, an automatic transaction device is used which conducts transactions such as deposit and withdrawal by the operation of a customer. Has a pool portion for taking out the dispensed banknotes, and the pool portion is provided with a shutter for blocking the inside and outside of the device.

FIG. 3 is a schematic perspective view showing a conventional shutter opening / closing mechanism used for opening / closing such a shutter.
In the figure, 1 is a pool section provided in a customer service section of the automatic transaction device, 2 is a shutter arranged on the upper surface side of the pool section 1, and a rack 3 is provided on the back side of the shutter 2 along the side thereof. It is provided. Reference numeral 4 is a detection piece provided at the rear end of the shutter 2, and 5 and 6 are sensors provided along the movement path of the detection piece.

Reference numeral 7 is a motor for driving the shutter, 8 is a drive gear attached to the rotary shaft of the motor 7, and 9 is an idler disposed between the drive gear 8 and the rack 3 so as to mesh with each other. Gears 10 are banknotes. The operation of such a shutter opening / closing mechanism is as follows. For example, when making a deposit transaction with an automatic transaction device,
First, when the shutter 2 is changed from the closed state to the open state, the motor 7 is driven by the control means (not shown) so as to rotate in the forward direction.

As a result, when the drive gear 8 rotates in the direction of arrow a, the idle gear 9 rotates in the direction of arrow b, and the feed force is applied to the rack 3 in accordance with the rotation of the idle gear 9, so that the shutter 2 is rotated by the rack 3. And moves in the direction of arrow c at a predetermined speed, that is, opens. Then, when the detection piece 4 provided at the rear end of the shutter 2 reaches the position detected by the sensor 6, the shutter 2 is completely opened and the upper surface of the pool portion 1 is opened. Based on this, the control means stops driving the motor 7 to stop the shutter 2.

In this state, for example, when the customer puts bills into the pool section 1 and then returns the shutter 2 to the closed state, the control means drives the motor 7 to rotate in the reverse direction. As a result, when the drive gear 8 rotates in the direction of arrow d, the idle gear 9 rotates in the direction of arrow e, and a feed force is applied to the rack 3 in accordance with the rotation of this idle gear 9, so that the shutter 2 is integrated with the rack 3. It moves in the direction of arrow f at the same speed as the opening operation, that is, it closes.

When the detection piece 4 provided at the rear end of the shutter 2 reaches the position detected by the sensor 5, the shutter 2 is completely closed and the upper surface of the pool portion 1 is closed. Based on the signal, the control means stops the driving of the motor 7 and stops the shutter 2.

[0008]

Although the conventional shutter opening / closing mechanism has been described above, such a shutter opening / closing mechanism has the following problems. That is, in financial institutions, as the transaction volume increases,
There is an urgent need to reduce the processing time per transaction, and among them, reduction of shutter operation time is being considered.

However, in the conventional shutter opening / closing mechanism, the operating speed when the shutter is opened and the operating speed when the shutter is closed are set to the same speed. Therefore, if the operating speed of the shutter is increased, there is a particular problem during the opening operation of the shutter. Although it does not occur, when the shutter is closed, not only does it scare the customer, but there is a danger that the human cannot follow the closing speed of the shutter and the customer's hand is caught in the shutter. , It was difficult to shorten the operation time of the shutter.

The present invention has been made in order to solve such a problem, and realizes a shutter opening / closing mechanism which can shorten the operation time of the shutter and can avoid the risk that the customer's hand is caught by the shutter. The purpose is to

[0011]

In order to achieve this object, the present invention provides a rack for a shutter that shuts off the inside and the outside of the apparatus, and a gear meshed with the rack is rotated by a motor to move the shutter. In the shutter opening / closing mechanism for opening / closing, the opening operation speed of the shutter is set higher than the closing operation speed.

[0012]

According to the present invention having such a structure, since the speed of the opening operation of the shutter is made faster than the speed of the closing operation,
The shutter operation time can be shortened by increasing the shutter opening speed, and the shutter closing speed can be made the same as before, thus avoiding the risk of the customer's hand being caught by the shutter. It becomes possible.

[0013]

An embodiment will be described below with reference to the drawings. FIG. 1 is a side view showing an embodiment of a shutter opening / closing mechanism according to the present invention, and FIG. 2 is a side view showing its operation. In the figure, 1 is a pool part, 2 is a shutter, 3 is a rack, 4 is a detection piece, 5 and 6 are sensors, 7 is a motor, and these are equivalent to conventional ones, and their explanations are omitted because they have the same configuration. To do.

Reference numeral 10 is a bill. Gears 11 to 19 transmit the rotation of the motor 7 to the rack 3, and these gears 11
Nos. 19 to 19 are configured such that the speed during the closing operation is slower than the speed during the opening operation of the shutter 2. That is,
A drive gear 11 as a first gear is attached to a rotation shaft of a motor 7, a gear 12 as a second gear is meshed with the drive gear 11, and one end of an arm 21 rotates about a central shaft 20 of the gear 12. It is freely attached, and a planetary gear 13 is supported at the other end of the arm 20 so as to mesh with the gear 12.

Further, the gear 1 as the third and fifth gears
4, 15 and gears 17, 1 as fourth and sixth gears
8 is coaxially provided so as to rotate integrally with each other, and the gear 14 and the gear 17 are arranged at a constant interval so that the planet gear 13 meshes with one of the gear 14 and the gear 17. A gear 16 is arranged between the gears 15 and 18 so as to mesh with each other.
A gear 19 as a gear is disposed in the middle of the rack 3 and the gear 18 so as to mesh with each other.

The speed ratio of each of the gears 11 to 16 is such that the number of teeth of the gear 11 is Z ₁₁ , the number of teeth of the gear 12 is Z ₁₂ , ....
... If the number of teeth of the gear 19 is Z ₁₉ , the gear ratio: i open = Z ₁₁ / Z ₁₂ · Z ₁₂ / Z ₁₃ · Z ₁₃ / Z ₁₄ · Z ₁₅ / Z ₁₆ · Z ₁₆ / Z ₁₈ · Z ₁₈ / Z ₁₉ = Z ₁₁ Z ₁₅ / Z ₁₄ Z ₁₉ Gear ratio: i closed = Z ₁₁ / Z ₁₂ / Z ₁₂ / Z ₁₃ / Z ₁₃ / Z ₁₇ / Z ₁₈ / Z ₁₉ = Z ₁₁ Z ₁₈ / Z ₁₇ since the Z _19, in the configuration of this embodiment of the gear ratio "i open> i
"Closed", the relationship between the gears 14, 15 and the gears 17, 18 coaxial with the gears _{14, 15} is "Z ₁₅ / z ₁₄ > z ₁₈ / z".
₁₇ ”is set to satisfy.

Next, the operation of the above configuration will be described. For example, when making a deposit transaction with an automatic transaction device,
When the shutter 2 is changed from the closed state to the open state, the motor 7 is driven by the control means (not shown) so as to rotate in the forward direction. As a result, when the drive gear 11 rotates in the direction of arrow A shown in FIG. 1, the rotational force is transmitted to the gear 12, the gear 12 rotates in the direction of arrow B, and the rotational force is transmitted to the planetary gear 13. It

At this time, the planetary gear 13 meshes with the gear 17, but when a rotational force is applied from the gear 12 in the direction of arrow B, the planetary gear 13 rotates in the direction of arrow C while rotating with the arm 21.
It moves downward around the center axis 20 of the second fulcrum and meshes with the gear 14. Therefore, the rotational force of the planetary gear 13 is
To the gear 1 from the gear 15 coaxial with the gear 14.
Since the rotational force is transmitted from 6 → gear 18 → gear 19,
These gears 14, 15, 16, 18, 19 are indicated by arrows D,
Since the rack 3 rotates in the E and G directions, respectively, and the feed force is applied to the rack 3 in accordance with the rotation of the gear 19, the shutter 2 moves integrally with the rack 3 in the direction of arrow H at a predetermined speed, that is, opens.

When the detection piece 4 provided at the rear end of the shutter 2 reaches the position detected by the sensor 6,
Since the shutter 2 is completely opened and the upper surface of the pool portion 1 is opened, the control means stops the driving of the motor 7 and stops the shutter 2 based on the detection signal of the sensor 6. In this state, for example, when the customer puts bills into the pool section 1 and then returns the shutter 2 to the closed state, the motor 7 is driven to rotate in the reverse direction by the control means.

As a result, when the drive gear 11 rotates in the direction of arrow I shown in FIG. 2, the rotational force is transmitted to the gear 12, the gear 12 rotates in the direction of arrow J, and the rotational force is further transmitted to the planetary gear 13. Be transmitted to. At this time, the planetary gear 13 meshes with the gear 14, but when a rotational force is applied from the gear 12 in the arrow J direction, the planetary gear 13 moves upward together with the arm 21 with the central axis 20 of the gear 12 as a fulcrum while rotating in the arrow K direction. , Meshes with the gear 17.

Therefore, the rotational force of the planetary gear 13 is equal to that of the gear 1.
7 and further to the gear 19 via the gear 18 coaxial with the gear 17, these gears 17, 18,
19 rotates in the directions of the arrows L and M, respectively.
With the rotation of, the feed force is applied to the rack 3, and the shutter 2 moves in the direction of the arrow N together with the rack 3, that is, opens.

When the detection piece 4 provided at the rear end of the shutter 2 reaches the position detected by the sensor 5, the shutter 2 is completely opened and the upper surface of the pool portion 1 is opened. Based on the signal, the control means stops driving the motor 7 to stop the shutter 2. Although the shutter 2 is opened and closed in this manner, in the present embodiment, the gear ratios of the gears 14 and 17 meshing with the planetary gear 13 and the gears 15 and 18 provided coaxially with the planetary gear 13 are "Z ₁₅ / z ₁₄ > z ₁₈ / z ₁₇ ”, the shutter 2 is faster than the closing operation speed even if the motor 7 is driven at a constant rotation speed in both forward and reverse directions. It can be opened with.

[0023]

As described above, according to the present invention, a shutter opening / closing mechanism for opening / closing the shutter is provided by providing a rack on the shutter that shuts off the inside and the outside of the apparatus, and rotating a gear meshed with the rack by a motor. In the above, in the configuration in which the opening operation speed of the shutter is faster than the closing operation speed and the operation time of the shutter can be shortened by an amount corresponding to the increased opening operation speed of the shutter, the closing operation speed of the shutter is Since the same can be done, it is possible to avoid the risk that the customer's hand is caught by the shutter.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a shutter opening / closing mechanism according to the present invention.

FIG. 2 is a side view showing the operation of the embodiment of FIG.

FIG. 3 is a schematic perspective view showing a conventional shutter opening / closing mechanism.

[Explanation of symbols]

 1 Pool Part 2 Shutter 3 Rack 7 Motor 11 Drive Gear 12 Gear 13 Planetary Gear 14-19 Gear

Claims (2)

[Claims] 1. A shutter opening / closing mechanism for opening / closing the shutter by providing a rack on a shutter for shutting off the inside and the outside of the apparatus, and rotating a gear meshed with the rack by a motor to open / close the shutter. A shutter opening / closing mechanism that is faster than the closing speed. 2. A first gear attached to a rotation shaft of a motor, a second gear meshing with the first gear, and a center shaft rotatable of the second gear. A planetary gear supported by an arm attached to the second gear and meshed with a second gear, third and fourth gears opposed to each other via the planetary gear, and coaxial with the third and fourth gears, respectively. And a seventh gear meshed with the shutter rack, the motor is rotated in the forward direction, and the rotational force is generated by the first gear, the second gear, and the planetary gear. , The third gear, and the fifth gear that is coaxial with the third gear transmits to the seventh gear to open the shutter, reversely rotate the motor, and rotate the motor to rotate the first gear. Gear, 2nd gear, planetary gear, 4th gear, same as this 4th gear The shutter is closed by transmitting it to the seventh gear via the sixth gear of the above, and the gear ratio of the third, fifth and fourth and sixth gears is determined by the shutter opening operation. A shutter opening / closing mechanism characterized in that the speed is set to be higher than the closing operation speed.