JPH0512855Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a continuous coin input device for a pre-payment type supply machine for gas, etc., which is used for a fee in facilities such as hospitals.

[Problems to be solved by the prior art and the invention] Generally, in hot water rooms in hospitals, etc., there is a pre-paid supply machine (vending machine) for gas, water boilers, etc. so that nursing attendants can use them for a fee. may be installed. Since this kind of front metal feeder sets the timer based on the rotation of the handle shaft, the initial position of the handle shaft and the operation setting position by rotation are accurate, and it is also possible to set the timer based on the rotation of the handle shaft. It is required that there is no excess. Therefore, a stopper is provided to restrict the rotation of the handle shaft beyond its operating setting position and its return rotation beyond its initial position, so that the handle shaft can only be rotated within the range between the two stoppers. At the same time, it is necessary to bias the handle shaft so that it automatically returns to its initial position when the hand is released.

However, these conventional coin insertion mechanisms are single-input types that can only insert one coin, and if you want to use them for a long time, you must wait until the timer time for one coin has expired before inserting the next coin. Either it is not possible to do so, or even if coins are made consecutively, subsequent coins are invalid and the timer time for only one coin can be used, and extra coins inserted are not recovered and become overpayments. It had some flaws.

Therefore, as shown in Japanese Utility Model Publication No. 50-31760, with a coin inserted and supported by the drum, the handle is rotated to rotate the drum, thereby supplying a predetermined amount of gas. After setting the drum, when the drum returns to its initial position by releasing the handle, the next coin is inserted to enable the handle to rotate, thereby controlling the control mechanism of the gas supply valve. There is a continuous coin-insertion type that accumulates and can be supplied for a long time. However, since the drum and handle rotate as one unit, if an inexperienced person accidentally releases the handle halfway, the coin will be retained in the coin hole instead of falling into the coin receptacle. However, at this time, if the next coin has already been inserted into the coin slot, the previously inserted coin that has been reversed will collide with the next coin, causing the coins to become similar. This poses a problem as it may become misaligned and cause malfunctions such as equipment malfunction.

[Means for Solving the Problem] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a continuous coin input device for a advance payment type feeder for gas, etc., which can eliminate these drawbacks. The timer is set by rotating the handle shaft from the initial position to the operation setting position after a predetermined angle with a coin inserted into the coin slot, so that the timer can be supplied only during the set timer time. In the front metal feeder configured with the above, the handle shaft is always biased toward the initial position to automatically return the handle shaft to the initial position, and the handle shaft is moved beyond the set operating position. each stopper for regulating rotation and return rotation beyond the initial position; a drum disposed below the coin slot and having a coin hole into which the inserted coin fits; A coin receiving hole is formed to receive a coin fitted into the coin hole, and an operating shaft rotates integrally with the drum in the coin receiving state to set the timer, and a handle shaft is moved from the initial position to the operation setting position. The device is characterized by a one-way rotating clutch that transmits power only when rotating toward the operating position, but not when rotating from the operating setting position toward the initial position. .

With this structure, the present invention allows continuous coin insertion, and since the reversing force of the handle is not transmitted to the drum, etc., there is no problem even if the handle is operated incorrectly. This is what I did.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawings, reference numerals 6, 7, and 8 denote partition plates parallel to each other, and the partition plates 6, 7, and 8 are connected by a plurality of stay bolts of appropriate lengths (not shown) to form the frame of the coin inserter. ing. Reference numeral 1 denotes a handle shaft rotatably supported by a partition plate 6, and a handle (grip) 1a is integrally attached to the handle shaft 1. A bullet 2 is loaded between the handle shaft 1 and the handle shaft 1, and the protrusion 1b provided on the handle shaft 1 comes into contact with one stopper 6a provided on the partition plate 6 due to the stored force. It is now set in position. Then, by grasping the handle 1a, the handle shaft 1 can be rotated 180 degrees counterclockwise against the ammunition 2 until the protrusion 1b comes into contact with the other stopper 6b. When the hand is released from the rotated handle shaft 1, the handle shaft 1 is automatically returned to its original position by the biasing force of the ammunition 2.

On the other hand, 4 is a one-way rotation clutch mechanism,
The cam body 4d constituting the clutch mechanism 4 has a key 1c at the tip of the handle shaft 1 passing through the partition plate 7.
The cam body 4d has a pair of cam surfaces 4i whose diameter from the axis gradually increases as it rotates clockwise, and an adjacent cam surface 4i. A stepped locking portion 4e located between the minimum diameter portion and the maximum diameter portion is formed on the outer peripheral surface. On the other hand, a cam pin 4f is elastically mounted on the cam rotor 4a on which the cam body 4d is fitted so as to be freely retractable.
The cam surface 4i is slid from the large diameter side to the small diameter side, and is set to be locked in the locking portion 4e, so that the cam body 4d and the cam rotor 4a rotate integrally, and vice versa. , for clockwise rotation, cam pin 4
f slides on the cam surface 4i from the small diameter side to the large diameter side, so that the co-rotation of the cam rotor 4a with the cam body 4d is released. Furthermore, 4b
is a cam pawl that is constantly biased by a torsion bomb 4c, and when the cam pawl 4b engages freely in and out of positioning grooves 4g and 4h formed on the outer periphery of the cam rotor 4a, the drum as described below The cam rotor 4a is configured to allow counterclockwise rotation of the cam rotor 4a and restrict clockwise rotation.

Reference numeral 3 denotes a cylindrical drum integrally projecting from the side surface of the cam rotor 4a, and the drum 3 has coin holes 3a and 3b so that a coin C can be inserted in the axial direction.
are opened, but these coin holes 3a and 3b
The above-mentioned handle shaft 1 is rotated until the protrusion 1b contacts the stopper 6b, and the cam pawl 4b is set to engage with the positioning groove 4h (or 4g), and then the handle shaft 1 is placed above. Coin slot 1
It is set to face 0.

On the other hand, reference numeral 5 denotes an operating shaft whose one end is rotatably supported by the partition plate 8 and whose other end is rotatably fitted into the drum 3. The operating shaft 5 is interlocked with a timer (not shown). A gear 9 is integrally provided, and a coin receiving hole 5a of a size large enough to restrict the passage of coins C is formed in the portion of the actuating shaft 5 that fits into the drum 3. . Reference numeral 5b denotes a cam rotor that is integrally fitted onto the tip of the operating shaft 5 that passes through the partition plate 8. On the outer periphery of the cam rotor 5b, there are positioning grooves 4g, 4 for the cam rotor 4a.
Positioning grooves 5c are formed at positions corresponding to the positioning grooves 5c, and on the other hand, cam pawls 5d are pivotally supported on the partition plate 8 at corresponding positions so as to be engaged with and disengaged from the positioning grooves 5c. 5d is a bullet (not shown) that is urged against the positioning groove 5c. The cam rotor 5b and the cam pawl 5d are connected to the cam rotor 4.
As in case a, the receiving hole 5a of the actuating shaft 5 is configured to accurately rotate by 180 degrees, and to prevent unnecessary rotation of the actuating shaft 5 due to slips, deviations, etc. The coin receiving hole 5a is regulated by the cam rotor 5b, and the coin hole 3a (3b) on the drum 3 side is regulated by the cam rotor 4a.
is set to always match during standby.

In the embodiment of the present invention constructed as described above, first, when a coin C is inserted into the coin slot 10, the coin C is inserted into the coin hole 3a located on the upper side and is inserted into the coin hole 3a located on the upper side, as shown in FIG. 5A. The drum 3 and the operating shaft 5 are connected by the coin C, so that the drum 3 and the operating shaft 5 are connected to each other by the coin C. In this state, handle 1a
When the projection 1b is rotated 180 degrees counterclockwise until it comes into contact with the stopper 6b, the engagement between the positioning groove 4h and the cam pawl 4b is released, and as the handle shaft 1 rotates, the cam body 4d of the clutch mechanism 4 is rotated. The drum 3 also rotates 180 degrees (FIG. 5B), but the locking portion 4e is locked to the cam pin 4f, and the cam rotor 4a is also rotated in the same direction and at the same angle. and the operating shaft 5 rotate together to rotate the gear 9, and the timer for one coin is set, and the coin C is turned upside down as shown in Fig. 5C. This is due to falling into the receiving box 11.

When this state is reached, the positioning groove 4g now engages with the cam pawl 4b, and the cam rotor 4a is set in position, whereby the drum 3 is set at a position exactly rotated by 180 degrees from the initial state. Become. If you let go of the handle 1a at this point,
Due to the action of the bullet 2, the handle shaft 1, the handle 1a, and the cam body 4d unite and attempt to reverse and return to their original state, and at this time, the cam pin 4f moves the cam surface 4i from the small diameter side to the large diameter side. The cam rotor 4, which has been positioned and set to slide,
While the side a remains stationary without moving, the cam body 4d side is allowed to reverse and return (the state shown in Figure 5B), and as shown in Figure 5E, the drum 3 and the operating shaft 5 are connected to each other. does not move, and only the handle shaft 1 side rotates to return to its initial position. In this returned state, the drum 3 is set at a position exactly rotated by 180 degrees with respect to the initial state shown in FIG. 5A (the coin hole 3a is located above).
In this restored state, contrary to the initial state shown in FIG. 5A, the coin hole 3b faces the coin slot 10 together with the receiving hole 5a, and coins C can be continuously inserted in the same manner. Become.

On the other hand, although the operating shaft 5 remains unaffected by the reverse rotation of the handle shaft 1, the operating shaft 5 may be rotated or slipped due to the conduction force from the timer side through the gear 9. However, since even the slightest rotation of the cam rotor 5b is restricted by the engagement between the positioning groove 5c and the cam pawl 5d, the coin receiving hole 5a also always stands by at its normal position.

In this way, it is possible to continuously insert coins C, but when a person who is not familiar with the operation inserts coins C, it is possible to do so without rotating the handle 1a 180 degrees as described above, as shown in Fig. 5B. If you let go of your hand in the middle of the process, the handle shaft 1 side will reverse and return to its initial state due to the action of the bullet 2, but the cam rotor 4a side will remain stationary at the position shown in Figure 5 (B) without moving. As a result, the coin hole 3a or 3b and the receiving hole 5a no longer face the coin slot 10, and the previously inserted coin C will be replaced by the next coin C inserted from the coin slot 10 as in the conventional case. There's no chance of them reversing and colliding. In this state, the operator realizes that the next coin C will not be inserted deeply, and pulls the handle 1a toward the protrusion 1.
When the cam rotor 4a, which has stopped midway, is rotated to a predetermined position by turning the cam rotor 4a largely counterclockwise until it hits the b stopper 6b, the previously inserted coin C falls into the coin box 11, and the next inserted coin C falls into the coin hole 3b, It will fit into the receiving hole 5a, and problems such as clogging can be reliably avoided.

Moreover, in this case, only the handle shaft 1 side is rotated to return to the initial position. Since the drum 3 does not rotate in the opposite direction, problems such as coins hitting each other and overlapping do not occur. In addition, since the handle shaft 1 rotates reliably by a predetermined angle when the protrusion 1b comes into contact with the stoppers 6a and 6b, there is no play in the rotation of the handle shaft 1, and the handle shaft 1 rotates reliably by a predetermined angle. This prevents the handle shaft from rotating unnecessarily. As a result, the timer can be operated reliably by a predetermined amount, and over-operation of the timer can be prevented.

[Operations and Effects] In short, the present invention is constructed as described above, and while it is possible to continuously insert coins, the drum and the operating shaft are connected by the inserted coins. If the handle shaft is returned to its original state by rotating the shaft only half way before the coin falls, only the handle shaft will return, but the drum and operating shaft will remain in the rotated position without moving. Therefore, it is completely prevented that the coin held in the coin hole returns and interacts with the next coin inserted as in the conventional case, and failures such as device inoperation can be reliably prevented. In addition, the handle shaft rotates reliably by a predetermined angle when the protrusion comes into contact with the stopper, so there is no play in the rotation of the handle shaft. can be activated, excessive operation of the timer can be avoided, and a highly accurate device can be achieved.

[Brief explanation of the drawing]

The drawings show an embodiment of a continuous coin inserter in a front-loading type feeder for gas, etc. according to the present invention.
Figure 3 is a sectional side view of the clutch mechanism, Figure 3 is a sectional view of the drum and operating shaft, Figure 4 is a sectional view of the handle shaft to explain the action of the stopper, Figure 5 A, B, C,
D and E are explanatory diagrams of the operation of the drum and clutch mechanism, respectively. In the figure, 1 is the handle shaft, 1a is the handle, 1b
is a protrusion, 2 is a bullet, 3 is a drum, 3a, 3b are coin holes, 4 is a clutch mechanism, 4a is a cam rotor,
4d is a cam body, 4f is a cam pin, 5 is an operating shaft, 5
a is a coin receiving hole, 6a and 6b are stoppers, 9 is a gear, 10 is a coin slot, and C is a coin.

Claims (1)

[Scope of utility model registration request] The timer is set by rotating the handle shaft from the initial position to the operating setting position after passing through a predetermined angle while a coin is inserted into the coin slot, and supply is possible only during the set timer time. In the front metal feeder, the handle shaft is constantly biased toward the initial position to automatically return the handle shaft to the initial position, and the handle shaft is rotated beyond the set operating position. each stopper for regulating return rotation beyond the initial position; a drum disposed below the coin slot and having a coin hole into which the inserted coin fits; and the coin hole. A coin receiving hole is formed to receive a coin fitted into the coin receiving hole, and an operating shaft that rotates together with the drum to set the timer in the coin receiving state, and a handle shaft that rotates from the initial position toward the operation setting position. A front metal feeder characterized in that it is configured with a one-way rotary clutch that transmits power only for the rotational force of , and does not transmit power for rotation from the operating setting position toward the initial position. Continuous coin inserter.