JP3035667B2 - Shutter mechanism of paper counter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Summary] The present invention relates to a shutter mechanism of a paper sheet counting machine, and particularly to a safety device for a shutter provided in a paper sheet discharging section of the paper sheet counting machine. When there is an obstacle in the passage of the shutter when the shutter starts moving in the closing direction, the torque is prevented from being transmitted from the pulse motor of the power source for moving the shutter. In a shutter mechanism provided in a sheet discharging section of a sheet counter, a shutter attached to an arm A is a pulse motor → a gear B → a gear A. → Gear C → Gear D / Crank → Arm B → Spring → Arm A → Shutter. The shutter moves from the open state to the closed state. When the arm comes into contact with an obstacle, only the arm B connected to the arm A is pushed down by the spring by the spring, and the shutter operation is stopped, but the stud laid on the crank rotates downward and is released by the lock lever. The tip of the lock lever enters the sensor, turns off the clutch to stop the power to the shutter, and includes a shutter mechanism of the paper sheet counter.

[Industrial applications]

The present invention relates to a shutter mechanism of a sheet counter, and more particularly, to a shutter safety device provided in a sheet discharge section of the sheet counter.

[Conventional technology]

FIG. 1 is a front view of an embodiment of the present invention, that is, a front view of a shutter mechanism provided in a sheet ejection section of a sheet counting machine according to the present invention, in which 11 is a pulse motor, 12 is a gear B, and 13 is a gear.
Is a gear A, 14 is a clutch arranged between a gear A13 on the pulse motor 11 side and a gear C15 on the shutter drive side, 15 is a gear C, 16 is a gear D, 17 is a shaft, 18 is a spring, 19
Is a lock lever, 20 is a crank, 21 is an arm A, 22 is an arm B, 23 is a sensor, and 24 is a spring.
A21 is provided with a shutter. A tray for receiving sheets described below is arranged below the illustrated mechanism, and when drawing out the sheets, the sheets are fed out to the tray by a signal system and a mechanism (not shown), and then the shutter is opened. When the sheet is removed from the tray, the shutter closes and returns to the original state (initial state).

The mechanism shown in FIG. 1 is an improved version of the shutter mechanism of the paper sheet counter according to the present applicant's development. In the structure shown in FIG. 3 before the improvement, the arm A21 and the arm B22 are used.
The arm A31 and the arm B32 corresponding to the shaft 17 were fixed to the shaft 33 corresponding to the shaft 17. In the figure, reference numeral 34 denotes a spring corresponding to the spring 18 in FIG.

[Problems to be solved by the invention]

In the example shown in FIG. 3, even when an obstacle such as a human hand or an article is located in the passage of the shutter when the shutter is to be closed, the torque for rotating the shaft 33 is applied from the pulse motor. When the shutter is moved, the shaft continues to rotate and the shutter moves in the closing direction regardless of whether or not there is an obstacle in the passage of the shutter, which may hurt a human hand or damage an article. There is a demand for safety measures when closing the shutter of the paper sheet discharge section of the machine.

Therefore, the present invention provides a sheet discharge section of a sheet counter, a pulse motor as a power source for moving the shutter when an obstacle is present in the passage of the shutter when the shutter starts to move in the closing direction. The purpose of the present invention is to provide a safety means for preventing transmission of torque from the shutter and thereby temporarily stopping the movement of the shutter.

[Means for solving the problem]

The above-mentioned problem is solved by a shutter mechanism provided in a sheet discharge section of a sheet counter, wherein a shutter attached to an arm A is a pulse motor → gear B → gear A → gear C → gear D /
It is arranged to operate in the order of crank → arm B → spring → arm A → shutter. When the shutter comes into contact with the obstacle at the clutch ON stage where the shutter shifts from the open state to the closed state, the spring contacts the arm A. Only the connected arm B is pushed down by the crank and the shutter operation stops, but the stud laid on the crank rotates downward and comes off by the lock lever, so the tip of the lock lever enters the sensor and turns off the clutch. The shutter mechanism of the paper sheet counter is characterized in that the power to the shutter is stopped.

[Action]

That is, the present invention has a mechanism in which both arms are stopped by a spring in place of the fixed holding state of the two arms fixed to the shaft in the mechanism before the improvement, so that when a human hand is pinched, the shutter is opened. It prevents movement and prevents injury to human hands.

〔Example〕

Hereinafter, the present invention will be specifically described with reference to the illustrated embodiments.

FIG. 2 is a side view showing a main part of the embodiment of the present invention, in which the same parts as those shown in FIG. 1 are denoted by the same reference numerals, 10 is a shutter, 25 is a stud A, 26 Is a stud B, 27 is an oblong hole, 28 is a tray, 29 is a holding plate, 30 is paper sheets, and studs A and B are attached to the crank 20. In FIG. 2, the shutter 10, the arm A21
For such components, the state when the shutter is closed is indicated by a solid line, and the state when the shutter is open is indicated by a two-dot chain line.

The tray 28 and the holding plate 29 are disposed below a shutter mechanism including an arm A21, an arm B22, etc., and the sheets 30 transported in the direction of the arrow I are knocked down by the holding plate 29 and accumulated on the tray 28. You. When the predetermined sheets 30 have been deposited, the shutter 10 attached to the arm A21 opens,
The shutter 10 closes when a predetermined time has elapsed.

Returning to FIG. 1, a signal for closing the shutter is transmitted, the clutch 14 is turned on, and the pulse motor 11 → gear.
B12 → Gear A13 → Gear C15 → Gear D16 / Crank 20 → Arm B
The state (initial state) when the operation is completed in the order of 22 → spring 18 → arm A21 → shutter and the shutter is closed is shown.

When the clutch 14 is ON and the shutter is closed, referring to FIG. 2 as well, the shutter 10, the arm A21, and the like move from the position indicated by the two-dot chain line to the position indicated by the solid line. Since it is held down, it moves simultaneously with the gear D16 and the stud A25 attached to the crank 20 (the stud A25 moves the arm B22). That is, when the crank 20 rotates, the stud A25 also rotates. Here, assuming that an obstacle exists between the shutter 10 and the tray 28, only at that time the portion pressed by the force of the spring 18, that is, the connection between the arm B22 and the arm A21 is disconnected, and Stud A2 inside the oval hole 27
5 moves and when this stud reaches the end, the lock lever 1
The stud B26 that lifted the 9 came off and the lock lever 19
The tip 19a of the motor enters the sensor 23 and is detected by the sensor.As a result, it is confirmed that the shutter is closed, and since the clutch 14 is turned off and the torque of the pulse motor 11 is not transmitted, the shutter 10 moves further. Damage to obstacles is prevented.

〔The invention's effect〕

As described above, according to the present invention, the arm fixed to the shaft is eliminated by the shutter mechanism of the sheet discharging section of the sheet counter before improvement according to the present invention, and the shutter is stopped by a spring instead. Due to this configuration, if the shutter touches a human hand, the clutch that transmits the torque of the pulse motor is turned off and the shutter is closed, and there is no further movement of the shutter. The effect of prevention is obtained.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a side view of a main part of the embodiment of the present invention, and FIG. 3 is a front view of a part of a shutter mechanism developed by the present applicant. In the figure, 10 is a shutter, 11 is a pulse motor, 12 is gear B, 13 is gear A, 14 is clutch, 15 is gear C, 16 is gear D, 17 is shaft, 18 is spring, 19 is lock lever, 19a Is the tip of the lock lever, 20 is the crank, 21 is the arm A, 22 is the arm B, 22a is the arm B extension 23 is the sensor, 24 is the spring, 25 is the stud A, 26 is the stud B, and 27 is the oblong hole Reference numeral 28 indicates a tray, 29 indicates a presser plate, and 30 indicates paper sheets.

Claims (1)

(57) [Claims] 1. A shutter mechanism provided in a sheet discharge section of a sheet counter, wherein a shutter (10) attached to an arm A (21) is a pulse motor (11) → gear B (12) → gear. A (13) → Gear C
(15) → Gear D (16) / Crank (20) → Arm B (2
2) → Spring (18) → Arm A (21) → Shutter (1
0), and the shutter (10) contacts the obstacle at the ON stage of the clutch (14) when the shutter (10) shifts from the open state to the closed state. Only the arm B (22) connected to the arm A (21) is pushed down by the crank (20) to stop the shutter operation, and the stud (26) laid on the crank rotates downward and is released by the lock lever. The tip (19a) of the lock lever is a sensor (2
Enter 3), turn off the clutch (14) and shutter (10)
A shutter mechanism for a paper sheet counter, wherein the shutter mechanism is configured to stop power to the paper sheet counter.