JPS642217Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention is based on the coin sorting device attached to a public telephone, and if the coin sorting device is operated at a speed higher than the normal speed during a call, only the return flapper will be removed. To provide a hook cycle mechanism in which a hook switch is not released even when a coin is opened, a call state is maintained even when accumulated coins are exhausted, and unauthorized use is prevented.

[Conventional technology]

Traditionally, public telephones have been used to sort and store coins,
It has a built-in coin sorting device for returning coins. As an example, a coin track device shown in Japanese Utility Model Application Publication No. 132462/1983 is known. However, this device had a problem because it did not have a configuration to prevent unauthorized use due to hooking operations. Therefore, in coin sorting devices for public telephones, methods such as those disclosed in Japanese Patent Application Laid-Open No. 158999/1982 and Japanese Patent Publication No. 9209/1989 are known as methods for preventing unauthorized use due to illegal hooking operations. The former is linked with the slider that descends by the return action, and is equipped with a delay mechanism that is activated by the stored energy stored in the spring in advance.
After a predetermined period of time has elapsed since the return operation, the output section of this delay mechanism presses the return plate blocking the return passage to exit the passage and open the return passage. On the other hand, in the latter case, when the hook or cradle button is pressed down and released at a speed much faster than normal, the hook switch contact is prevented from operating again by a cam and a dependent body that moves along the cam.

[Problem that the invention attempts to solve]

However, the former coin return mechanism described above has problems such as its complicated structure and the need for a heavy handset to operate the delay mechanism.

In addition, especially in a coin sorting device that allows the use of multiple types of coins in a single track, when the discrimination section identifies a genuine coin, the denomination is stored in the central processing unit (CPU), so it is temporarily If you return the accumulated coins before erasing the memory of the CPU, if you return the full amount, you can check for an abnormality with the final coin accumulation confirmation detection, but if even one coin remains, you will be able to make a call. If low denomination coins remain at this time, there will be a discrepancy with the stored amount, resulting in fraudulent use. Moreover, if the coin is used with a string attached at this time, it becomes possible to make a telephone call for the amount stored.

On the other hand, the latter hook switch contact drive mechanism requires a cam and a dependent body, and like the former, the structure is complicated and the number of parts increases.

Therefore, the present invention solves the above-mentioned problems, and has a simple structure in which the hook switch is operated in accordance with the hooking operation to put the circuit in a disconnected state, and then the return flapper is opened and the accumulated coins are returned. It is an object of the present invention to provide a hook cycle mechanism for a coin sorting device that can prevent unauthorized use due to manipulation.

[Means for solving problems]

In order to achieve the above object, the present invention includes a substrate,
It has an integral protrusion that protrudes from the back side of this board,
Further, a bent portion bent upward along the back surface of the substrate is integrally provided at the protruding end of the protrusion, and is disposed on the surface of the substrate at a predetermined interval so as to be openable and closable;
a return flapper that is normally closed to prevent coins from being returned from the storage track to the return track; and a return flapper that is slidably disposed on the back surface of the board and a portion of which is connected to the back surface of the board and the bent portion of the protrusion. a locking member that normally locks the return flapper in the closed position by being inserted between the locking member and the hook button; The hooking mechanism that operates and the hooking mechanism turn ON,
and a hook switch that is turned off, and the locking mechanism rotates in conjunction with the on-hook operation of the hook button, slides the locking member along the back surface of the board, and folds the locking member and the protrusion. It integrally includes a foot lever that releases the engagement state with the curved portion, and a pressing portion that faces the protrusion with an appropriate distance therebetween, and the pressing portion presses the protrusion by rotating in conjunction with the foot lever. and an operating lever that opens the return flapper and operates the hook switch.

[Effect]

In the present invention, the return flapper is opened after the hook switch is operated due to the clearance provided between the return flapper and the hooking mechanism. A portion of the locking member is usually interposed between the back surface of the board and the protrusion, and prevents the return flapper from flapping or opening due to vibrations, shocks, etc. during use.

〔Example〕

The present invention will be described in detail below based on embodiments shown in the drawings.

FIG. 1 is a side sectional view showing an embodiment of the present invention, and FIGS. 2a and 2b are diagrams showing the locked state and unlocked state of the return flapper by the locking member. In these figures, reference numeral 1 denotes a board disposed inside the housing of the public telephone, and this board 1 is erected at a predetermined angle on the back side, and a coin accumulation track 3 is formed together with the board 1 on its surface. A return flapper 2 is rotatably disposed via a shaft 4, and is always urged toward the substrate 1 by a spring 5 attached to the shaft 4. A substantially hook-shaped protrusion 6 whose tip is bent upward is integrally provided on the back surface of the return flapper 2, and this protrusion 6 penetrates through an opening 7 formed in the substrate 1. It extends to the back side of the substrate 1.

8 is a storage rail constituting the storage track 3;
The lower end of the storage rail 8 is rotatably supported on the surface of the board 1, and the leaf spring 9 always gives it the ability to rotate on the board 1 side.
Although it is configured to be stored in a rail storage recess 10 provided in the board 1, normally, that is, when the handset (not shown) is off-hook (when the handset is removed from the hook button), the rail storage recess 10 is arranged. Regular coin 1 with upper end protruding from 10
1 can be accumulated. A lever portion 8A is integrally provided on the back surface of the storage rail 8, and this lever 8A is provided with the rail storage recess 1.
It extends from a hole 12 formed in the wall surface of 0 to the back surface side of the substrate 1, and its tip abuts the lower end 13A of the operating lever 13 constituting the hook cycle mechanism A.

The operating lever 13 has an intermediate portion that is connected to the substrate 1.
It is rotatably supported via a horizontal shaft 15 on a bracket 14 attached to the back surface of the
A clockwise rotational habit is imparted by this.
This spring 16 is greater than the spring force of the leaf spring 9 and therefore the lower end 13 of the operating lever 13
A presses the lever portion 8A to cause the storage rail 8 to protrude from the normal rail storage recess 10;
It faces into the storage orbit 3. The operation lever 13 further faces the back surface of the protrusion 6 of the return flapper 2 with an appropriate distance d usually maintained therebetween;
A pressing portion 13B that presses the projection 6 to open the return flapper 2 during on-hook operation (when the handset is placed on the hook button), and a contact portion that comes into contact with a roller 19 provided at the lower end of the hook lever 18, which will be described later. It includes a connecting portion 13C and a connecting portion 13D that extends rearward substantially horizontally and whose tip is pin-coupled to the upper end of the link 20. Said link 20
The lower end of the switch 21 is pin-coupled to one end of a rotary lever 22 for turning the switch 21 on and off.
Note that the pressing portion 13B has appropriate elasticity,
It absorbs the impact with the protrusion 6 and also absorbs dimensional variations due to manufacturing errors.

A locking member 25 for locking the return flapper 2 is provided on the back surface of the board 1 in correspondence with the protrusion 6. As shown in FIG. 2a, this locking member 25 is formed into a substantially rectangular frame shape, has an opening 26, and is disposed on the back surface of the substrate 1 so as to be movable up and down, and has the projection at its lower end. A locking piece 27 is integrally formed to normally lock the return flapper 2 in the closed position by being inserted between the bent portion 6a of the return flapper 6 and the base plate 1 and to prevent it from wobbling due to vibration or the like. . Further, on the back surface of the board 1, a rail lock member 29 extending vertically is disposed so as to be movable up and down along the board 1, and the rail lock member 29 is inserted into the opening 26 of the locking member 25 at its upper end. A bent portion 29a is integrally provided, and an engagement hole 30 is provided at the lower end through which the lever portion 8A of the storage rail 8 is inserted.
is formed. An engagement step 31 is formed at the center of the upper surface of the lever portion 8A, and the accumulation rail 8 is placed in the coin storage position by normally engaging the engagement step 31 and the engagement hole 30. It's locked. Bent portion 2 of the rail lock member 29
9a is close to the lower edge 26a of the opening 26, as shown in FIG. 2a. The distance d constitutes a play between the hook cycle mechanism A and the return flapper 2, so that the return flapper 2 is operated after the hook switch 21 is fully operated during an on-hook operation.

The foot lever 18 is formed into a substantially T-shape, so that it has three arms 18A, 18B, 18.
C, whose center portion is rotatably supported by a horizontal shaft 35, and is provided with a counterclockwise rotational habit by a spring 36. Of the three arms 18A, 18B, and 18C, a hook button 37 is placed on the upper surface of the tip of the horizontal arm 18A that extends toward the rear of the substrate 1, and the arm 18B that faces toward the substrate 1 has its tip. The arm 18C is inserted into the opening 26 of the locking member 25, and the remaining arm 18C extends downward to which the roller 19 is attached. The tip of the arm 18B and the opening 26
As shown in FIG. 2a, an appropriate distance l is normally set between the upper edge 26b and the upper edge 26b. Note that 40 is a stopper for maintaining a predetermined track width when the return flapper 2 is closed.

Next, the on-hook operation in the hook cycle mechanism A having such a configuration will be explained.

In the off-hook state shown in FIG. 1 and FIG. This prevents the accumulated coins 11 from being returned erroneously. When the handset is placed on the hook button 37 in this state,
The hook button 37 is lowered by the weight of the handset and rotates the hook lever 18 clockwise against the spring 36. Along with this rotation, the roller 19
presses the contact portion 13C of the operating lever 13,
The operation lever 13 rotates counterclockwise against the spring 16 about the shaft 15 as a rotation fulcrum, and the link 20
is raised, and the rotating lever 22 is rotated counterclockwise in conjunction with this, so that the hook switch 2
1 and then turn off the subscriber telephone line.
At this time, the locking member 25 is not yet operated and keeps the return flapper 2 in the locked state.

The foot lever 18 rotates by a certain angle to raise the tip of its arm 18B by l and brings it into contact with the upper edge 26b of the opening 26 of the locking member 25, but the foot lever 18 continues to rotate. , the locking member 25 is pushed up by the arm 18B. When the locking member 25 begins to rise, the rail locking member 29 also begins to rise integrally with it, and the engagement between the engagement hole 30 and the engagement step 31 of the storage rail 8 is released. When this engagement is released, the storage rail 8 is already connected to the operating lever 1.
Since it is released from the lever by the rotation of 3, it is rotated clockwise by the force of the leaf spring 9 and is stored in the rail storage recess 10. As a result, all the coins 1 accumulated on the accumulation rail 8
1 fall all at once onto the return track 41 and are returned to the return slot.

As the locking member 25 moves upward, the locking piece 27 bends at the bent portion 6a of the protrusion 6 as shown in FIG. 2b.
When the return flapper 2 is moved further upward, the lock of the return flapper 2 is released. From the time of this lock release, the pressing portion 13B of the operating lever 13 is pressed against the bent portion 6a.
, the return flapper 2 opens the bent portion 6a against the spring 5 to the lowering end position of the hook button 37, thereby completing the on-hook operation of the handset.

In this way, a clearance d is provided between the return flapper 2 and the hook cycle mechanism A, and the hook switch 21
When the return flapper 2 is opened to return the accumulated coins 11 after the coins have been fully operated, since the subscriber telephone line is disconnected, it is possible to reliably prevent unauthorized use due to abnormally quick flipping operations, and There is no need for a delay mechanism such as a timer, and there is no need for a delay mechanism such as a timer.
The structure can be simplified, and even when applied to a coin sorting device that stores the amount of accumulated coins in the CPU, only the switch 2 is required.
If the stored amount is erased with the OFF operation in step 1, there is no risk of unauthorized use even if the coins are not returned.

[Effect of idea]

As explained above, the hook cycle mechanism of the coin sorting device according to the present invention provides a clearance between the return flapper and the hook cycle mechanism, and operates the hook switch by the return operation to open the return flapper after setting the call-free state. Since the structure is simple, even if a hooking operation is performed at a very high speed, the communication state changes to the non-communication state, and unauthorized use can be reliably prevented. In addition, since the return flapper is normally locked in the closed state by a locking member that is slidably disposed on the back of the board and operated by a hooking mechanism, it is possible to avoid vibrations, shocks, etc. during use. This prevents the coin from flapping or opening, thereby preventing the accident of accidentally returning the coin.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing an embodiment of the hook cycle mechanism of the coin sorting device according to the present invention, and FIGS. 2 a and 2 b are diagrams showing the locked state and unlocked state of the return flapper by the locking member. . 1... Board, 2... Return flapper, 3... Accumulation track, 8... Accumulation rail, 11... Coin, 13...
...Operating lever, 18... Foot lever, 25...
Locking member, 37... Hook button, A... Hook cycle mechanism, d... Play.

Claims (1)

[Scope of utility model registration request] It integrally has a substrate 1 and a protrusion 6 that protrudes toward the back side of the substrate 1, and a bent portion 6a that is bent upward along the back surface of the substrate is integrally provided at the protruding end of the protrusion 6. The coins 11 are arranged on the surface of the substrate 1 at predetermined intervals so as to be openable and closable, and are normally closed to transfer the coins 11 from the storage track 3 to the return track 41.
a return flapper 2 that prevents the return of the board 1;
A lock that is slidably disposed on the back surface of the board and a portion of which is inserted between the back surface of the board and the bent portion 6a of the projection 6 to normally lock the return flapper 2 in the closed position. member 25, hook button 37,
The return flapper 2 and the locking member 2 are operated in conjunction with the on-hook operation of the hook button 37.
5, and a hook switch 21 that is turned on and off by the hooking mechanism A, and the hooking mechanism A
rotates in conjunction with the on-hook operation of the hook button 37, and slides the locking member 25 along the back surface of the board to determine the engagement state between the locking member 25 and the bent portion 6a of the protrusion 6. Release foot lever 18
and a pressing portion 13B that faces the protrusion 6 with an appropriate distance d therebetween, and the foot lever 18
By rotating in conjunction with
and an operation lever 13 which presses the projection 6 to open the return flapper 2 and operates the hook switch 21.