JPS6322757Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a coin track device for a public telephone.

Public telephones have a coin track that sorts and accumulates coins inserted, and the coin track needs to be adjusted to facilitate maintenance and inspection, and every time the coins used are changed or the fees are revised. Therefore, it is installed on the middle plate that can be freely accessed and removed.

In addition, when the handset of a public telephone is disconnected, the call is interrupted and the coin track is simultaneously opened, allowing the return of accumulated coins and the return of coins stuck in the coin track. be exposed.

In conventional public telephones, a hook state detection switch for detecting whether or not the receiver is hung is attached to the housing, which is separate from the middle panel. However, since the operation of this hook condition detection switch and the opening/closing operation of the coin track are linked, in the above conventional structure, it is necessary to adjust the middle plate and the hook condition detection switch separately during adjustment inspection. However, it has become more complicated and has the problem of requiring long wiring to connect the internal circuit to the housing in which the hook state detection switch is installed.

The present invention was developed in view of the above points, and the purpose is to provide a coin track device that can efficiently perform adjustment inspections and simplify wiring. be.

In other words, the present invention is a public telephone in which the lowering of the handset hook due to the weight of the handset is mechanically transmitted to open the coin track, thereby returning the coin and returning the coins stuck in the coin track. In a coin track device, a middle plate on which a coin track is formed, a track cover that is attached to the middle plate so as to be openable and closable and constitutes one side wall of the coin track, and a return that is opened and closed in conjunction with the track cover. A side stopper, a swinging lever that is operated by pushing to open and close the track cover and the return side stopper, and a hook state detection switch that detects the hooked state of the handset hook from the swinging state of this swinging lever. and an arm that mechanically transmits the lowering movement of the handset hook to the swing lever,
The middle plate is detachably fixed, and the single middle plate is equipped with the track cover, return side stopper, swing lever, and hook state detection switch.

Next, an embodiment of the apparatus according to the present invention will be described with reference to the drawings.

In the figure, 1 is a public telephone in which the device according to the present invention is used. In FIG. 1, only the outline of the upper housing 3 is indicated by a dashed line. That is, the public telephone 1 is divided into upper and lower halves, and the upper housing 3 is vertically movable along rails 4, 4 fixed to the lower housing 2. The rails 4, 4 are formed on the outer surfaces of left and right support plates 5, 6 which are provided to protrude from the upper surface 2a on both left and right sides of the lower housing 2, and a coin track is formed between the left and right support plates 5, 6. A middle plate 7 having an R, a circuit board (not shown) on which a telephone circuit is mounted, etc. are removably fixed.
The left and right support plates 5, 6 are provided with the rails 4, 4 and a snap lock 8 attached between the rails 4, 4 on their outer surfaces, respectively, and a first middle plate support portion is provided on the upper edge. 9 and a second intermediate plate support portion 10 are provided. On the other hand, these left and right support plates 5 and 6
A first intermediate plate engaging protrusion 11 and a second intermediate plate engaging protrusion 11' are formed at vertically lower positions of the respective supporting parts 9 and 10 on the inner surface of the left and right supporting plates 5. , 6 are provided with engaging pins 1 on both left and right sides of the middle plate 7, which are engaged with the first middle plate support part 9 or the second middle plate support part 10.
2 is implanted, and furthermore, on the lower end sides of the left and right sides of the middle plate, there is a notch-shaped engagement that is engaged with the first middle plate engaging protrusion 11 or the second middle plate engaging protrusion 11'. A recess 13 is formed.

Further, a coin introduction port 14 to the vault is formed at a substantially central position on the lower housing 2, and a return port introduction port 1 communicating with a return port 15 is formed near the front surface.
A return funnel 16 is provided between the periphery of the coin introduction port 14 into the vault and the return port introduction port 15a, and is inclined toward the return port introduction port 15a.

Furthermore, in detail about the left and right support plates 5 and 6 and the middle plate 7, the first middle plate support part 9 and the second middle plate support part formed on the upper end sides of the left and right support plates 5 and 6 10 is formed with a U-shaped notch,
The second middle plate support part 10 is formed shallower than the first middle plate support part 9 and is located above and in front, and accordingly, the second middle plate support part 9 is The protrusion 11' is located above and in front of the first intermediate plate engaging protrusion 11. Furthermore, the formation positions of the first intermediate plate support portion 9 and the first intermediate plate engagement protrusion 11 are such that the engagement pin 1 is formed at the first intermediate plate support portion 9.
2 is engaged and the engagement recess 13 is engaged with the first intermediate plate engagement protrusion 11, the lower end central portion of the intermediate plate 7 is set at a position continuous with the introduction port 14. On the other hand, a receiving metal fitting 18 that is engaged with the tightening ring 8a of the snap lock 8 is attached to the upper part of the engagement pin 12 in the middle plate 7.

Next, the coin trajectory R formed on the middle plate 7
The configuration will be explained with reference to the schematic configuration diagram in FIG.
The coin track R includes a middle plate side coin introduction port 21 located at the lower part of the coin input port 20 formed in the upper housing 3, and a coin introduction port 21 provided directly below the middle plate side coin introduction port 21 for inserting coins. Buffer plate 22 that dampens the speed
A cradle mechanism section 23 is provided next to the buffer plate 22 and distributes the coins left and right according to their size, and the cradle mechanism section 23 guides the distributed small-diameter coins into coins with a predetermined diameter or less. a first diameter selection section 24 that excludes the diameter from the orbit;
A second diameter sorting section 25 that guides large diameter coins sorted by the cradle mechanism section 23 and excludes coins with a predetermined diameter or less from the orbit, and the first and second diameter sorting sections 24 and 25. first and second magnetic sorting sections 26 and 27 with permanent magnets M ₁ provided at the next stages of the first and second magnetic sorting sections 26 and 27; ₂ and a lever L, and first and second lightweight sorting sections 28 and 29 provided at each subsequent stage of the lightweight sorting sections 28 and 29 and storing appropriate coins that have passed through each sorting section. It has storage tracks 30, 31, and at each end of the storage tracks 30, 31 there are return side stoppers 32, 33 for opening and closing between the return roll 16 and the storage tracks 30, 31, and a vault introduction. Storage side stoppers 34 and 35 are provided between the opening 14 and the storage tracks 30 and 31 for opening and closing operations. Thus, the lower end of the intermediate plate 7 between the storage side stoppers 34 and 35 serves as the storage side coin ejection part O ₁ , and the lower ends of the return side stoppers 32 and 33 respectively serve as the return side coin ejection parts O ₂ and O ₂ . ing.

Next, the specific structure shown in FIGS. 3 to 10 of the above-mentioned middle plate 7 will be explained.

A flapper shaft 36 is provided horizontally on the upper side of the middle plate 7, and a first flapper 37 and a second flapper 38, which are suspended below the flapper shaft 36, are attached to the flapper shaft 36. The first flapper 37 is pivotally mounted, and since it is used as a track cover for the cradle mechanism section 23 and each diameter selection section 24, 25, it has a plate shape as shown in FIG. The first flapper 37 is biased toward the middle plate 7 by a first flapper biasing spring 39 wound around the flapper shaft 36, and approximately at the center of the first flapper 37 has a The cradle mechanism section 2
Fan-shaped insertion openings 41a and 41b are opened, into which the rotation pins 43a and 43b of No. 3 are inserted, and a first opening 41a and 41b, which is pushed and operated when the first flapper 37 is opened and closed, is opened in the lower part of this insertion opening 41b. An engaging tongue piece 42 is formed. Further, the second flapper 38 is provided superimposed on the front surface of the first flapper 37 and biased toward the middle plate 7 by a second flapper biasing spring 40 wound around the flapper shaft 36. As shown in FIG.
The central part of a rotary plate 43 constituting the is pivotally mounted, and permanent magnets _M1 constituting each of the magnetic sorting sections 26 and 27 are attached to both sides of the lower part. The rotating plate 43 has a rectangular shape as shown in FIG.
Two pivot pins 43a and 43b protruding from the side are implanted, and a weight 44 is provided on a part of the pivot plate 43 to urge the pivot plate 43 to rotate counterclockwise. installed. Furthermore, this second
The flapper 38 has the rotation pins 43a, 43b.
A fan-shaped insertion opening 51a and an insertion cutout opening 51b are formed, through which the rotation plate is inserted, and a fan-shaped insertion opening 51a and an insertion cutout opening 51b are formed. A second engaging tongue piece 45 is formed which is pressed and operated when opening and closing.

As shown in FIG. 4, the middle plate 7 with the first and second flappers 37 and 38 described above removed is
Rotating pin insertion openings 61a and 61b corresponding to the insertion opening 51a and the insertion notch opening 51b are formed, and the first and second engaging tongue pieces 42 are located at the lower position of the insertion opening 61b. , 45 is formed with a first operation lever insertion opening 46, and further this first operation lever insertion opening 46
A second operation lever insertion opening 47 is formed below. This second operating lever insertion opening 4
A third engaging tongue piece 48a formed on the third flapper 48 is provided on the front side of the third flapper 48. It is pivotally mounted on a shaft 49 that extends horizontally over the operating lever insertion opening 47 of the lever. Furthermore, this third flapper 48 is biased toward the middle plate 7 by a third flapper biasing spring 50 wound around the shaft 49, and the left and right lower end sides of the third flapper 48 are respectively These are return side stoppers 32 and 33. Each accumulation track 3 at each upper position of this return side stopper 32, 33
0 and 31, coin detectors 52 for detecting the presence or absence of coins located at the terminal ends of the storage tracks 30 and 31;
53 are provided.

On the other hand, on the back side of the middle plate 7, there are shown figures 9 and 1.
A flapper operating lever device 54 shown in FIGS. 0A and 0B is provided, and this flapper operating lever device 5
4 is a first swinging lever 55 and a second swinging lever 5 that swings in conjunction with the first swinging lever 55.
6, the first swinging lever 55 has its center portion pivoted to a first fulcrum shaft 57 which is provided horizontally over the upper part of the second operation lever insertion opening 47, and The second swing lever 56 has its center portion pivoted to a second fulcrum shaft 58 that extends horizontally across the lower part of the first operating lever insertion opening 46 . The upper end of the second swing lever 56 is connected to the first swing lever 56.
a roller serving as a first contact portion 59 that extends to a position corresponding to the operation lever insertion opening 46 and comes into contact with the first engagement tongue 42; and the second engagement tongue. A roller is provided as a second contact portion 60 that comes into contact with the piece 45, and this second contact portion 60
is provided at a position slightly above the first contact portion 59. Further, the lower end of the second swing lever 56 is provided with a roller as a driven side transmission contact part 62, and this driven side transmission contact part 62 is connected to the first swing lever 55.
The first swing lever 55 is brought into contact with and interlocked with the driving side transmission contact portion 63 formed at the upper end thereof, and the third engaging tongue piece 48a is brought into contact with the lower end of the first swing lever 55. A roller is provided as the third contact portion 64. Further, on the back side of the fulcrum shaft 57 of the first swing lever 55, a swing operation plate 6 is provided.
5 is provided protrudingly, and the lower surface of this swing operation plate 65 is used as a swing operation transmission contact surface 65a. A micro switch 67 is provided as a hook state detection switch for detecting the state of the handset hook 66. This micro switch 67 is fixed to a switch support plate 68 protruding from the middle plate 7, and is connected to the first swing lever 5.
A micro-switch actuating body 69 that comes into contact with an actuator 67a of a micro-switch 67 is formed in a part of the micro-switch 67.

The fulcrum shaft 5 of each of the above-mentioned swing levers 55 and 56
Swing lever biasing springs 70 and 71 are wound around the swing levers 7 and 58, respectively, and the first swing lever 55 is caused by this spring 70 so that its end on the third contact portion 64 side is pressed against the middle plate 7. The second swing lever 56 has its first and second contact portions 59 and 60 side ends urged toward the middle plate 7 by a spring 71.

The above-mentioned flapper operation lever device 54 has a first
The hook operation interlocking device 72 is connected to a hook operation interlocking device 72 shown in FIG. a pushing plate 73, an upper abutting part 74 that comes into contact with the lower surface of the pushing plate 73 and moves up and down in conjunction with the pushing plate 73, and an upper part with the upper abutting part 74 provided at one end. a swinging arm 75; an arm support 77 on which a fulcrum shaft 76 of the upper swinging arm 75 is formed to support the upper swinging arm 75; Spring 78 that urges the contact portion 74 upward
and a lower swing arm 80 pivotally mounted to a fulcrum shaft 79 formed at a lower position of the arm support 77;
Provided at the rotating tip of this lower swing arm 80,
A lower contact portion 81 that abuts and engages with the swing operation transmission contact surface 65a of the flapper operation lever device 54.
and the upper swing arm 75 and the lower swing arm 8.
0 and a connecting arm 82. The handset hook 66 and the push plate 73 are provided on the upper housing 3 side, and the other members are provided on the lower housing 2.
It is provided on the side, that is, its pushing plate 73
is provided so as to be located on the upper abutting part 74 when the upper casing 3 and the lower casing 2 are combined, and this upper abutting part 74 is pivotally supported via the upper swinging arm 75. The arm support 77 is fixed to the upper surface 2a of the lower housing 2. The interval between the upper abutting part 74 and its fulcrum shaft 76 is larger than the interval between the lower abutting part 81 and its fulcrum shaft 79, and the lower abutting part 81 is such that the middle plate 7 is When attached to the housing 2, it is provided so as to be located below the swing operation transmission contact surface 65a of the flapper operation lever device 54.

Next, the operation of each device in the telephone configured as described above will be explained.

First, when a small-diameter coin C ₁ is inserted into the coin slot 20, the small-diameter coin C ₁ is inserted into the coin slot 20 on the middle plate side.
1 and collides with the buffer plate 22, where the excessive speed caused by the strong injection is reduced and reaches the cradle mechanism section 23 of the next stage. Here, the small diameter coin C ₁ is the rotating pin 43a, 43b of the cradle mechanism section 23.
Coins having a diameter smaller than a predetermined diameter fall off the track of the diameter sorting section 24 and fall onto the return funnel 16 to reach the return port 15. Further, coins having an appropriate diameter in the first diameter sorting section 24 pass through a first magnetic sorting section 26 and a first lightweight sorting section 28 and are accumulated in a first coin accumulation track 30. However, in the first magnetic sorting section 26, magnetic sorting is performed in which fraudulent ferromagnetic coins are attracted by the magnet _M1 , and the magnetic coins attracted by the magnet _M1 are transferred to the handset 100, which will be described later. It is designed to be dropped onto the return funnel 16 in conjunction with the hooking operation. Furthermore, in the lightweight sorting section 28,
Coins with the appropriate mass collide with the lever L, shake off the attractive force between the lever L and the magnet _M2 , and fall into the accumulation track 30, but coins with less than a predetermined mass are rebounded by the lever L and returned. Fall onto the funnel.

In addition, when a large-diameter coin _C2 is inserted into the coin insertion port 20, the large-diameter coin _C2 is rotated by the pivot pins 43a and 43b in the cradle mechanism.
b, rotates together with the pivot pins 43a, 43b, and is guided to the second diameter sorting section 25. The large-diameter coin _C2 is then subjected to diameter sorting, magnetic sorting, and light weight sorting in the same manner as the small-diameter coin _C1 , and reaches the second accumulation track 31.
The coins _C1 and _C2 are sequentially guided to the safe introduction port 14 by the storage side stoppers 34, 35 which are opened and closed in response to the call information, but since the storage side stoppers 34, 35 are not opened at the same time, when one of the storage side stoppers 34, 35 is opened, the other storage side stoppers 35, 34 function as guides for the coins _C1 and _C2 . That is, when one of the storage side stoppers 34 is opened, the small diameter coin _C1 leaves the first accumulation track and hits the other storage side stopper 35, and is guided by the storage side stopper 35 to the coin introduction port 14 to the safe. When the return side stoppers 32, 33 are opened by the hooking operation, the coins _C1 and _C2 are both guided by the return funnel 16 to the return port 15.

Next, the above-mentioned hooking operation will be explained in detail.

First, as shown in FIG. 11, when the handset 100 is hung on the hook 66, the hook 66 is lowered by the weight of the handset 100, and the push plate 73 rotates around the support shaft 73' and hits the upper part. The contact portion 74 is pushed downward. This upper contact portion 74
is lowered against the spring 78, and the lowering of the upper contact portion 74 is transmitted to the lower contact portion 81 via the upper swing arm 75, the connecting arm 82, and the lower swing arm 80, and the lower contact portion 81 is lowered against the spring 78. The contact portion 81 is lowered.

The lowering of the lower contact portion 81 is transmitted to the flapper operating lever device 54, and the state shown in FIG. 10A changes to the state shown in FIG. 10B. That is, the contact portions 59, 60, 64 of each swing lever 55, 56
is biased toward the middle plate 7 side by each lever biasing spring 70, 71, so that the transmission contact surface 65a
When the upward force applied from the lower abutment part 81 is released, the first swing lever 55 moves to the tenth position.
The first swing lever 55 is rotated clockwise in the figure, and the clockwise rotation of the first swing lever 55 is caused by the driven side transmission abutment part 62 being applied to the intermediate plate 7 from the driving side transmission abutment part 63. Since the directional force is released, the second swing lever 56 is rotated counterclockwise in FIG. 10.

In this way, the first, second, and third contact portions 59, 60, and 64 of each of the swing levers 55 and 56 push the respective engagement tongue pieces 42, 45, and 48a, but at this time, The engagement between the second contact portion 60 and the second engagement tongue piece 45 is performed before the engagement between the first contact portion 59 and the first engagement tongue piece 42. Since the formation positions of the mating tongue pieces 42, 45 and the respective contact portions 59, 60 are set, the second flapper 38 first rotates around the flapper shaft 36, and the second flapper 38 rotates around the flapper shaft 36. It will be separated from the flapper 37 of No. 1. However, at this time, the fraudulent coins that were attracted to the magnet _M1 are dropped, and the rotating pins 43a and 43b of the cradle mechanism section 23 are pulled out from the insertion openings 41a and 41b, so the rotating pins are pulled out from the insertion openings 41a and 41b. The coin held between 43a and 43b will also be dropped. Next, the first flapper 37 is rotated about the flapper shaft 36, and the first flapper 37 is separated from the middle plate 7, so that the coin that was previously caught in the middle of the coin trajectory falls. It turns out. Further, at the same time, the third abutting portion 64 is connected to the third engaging tongue piece 4.
8a, the third flapper 48 is connected to the shaft 4.
9, the return side stopper 3
2 and 33 will be opened. Further, the micro switch 67 as the hooked state detector has an actuator 67a that is connected to the first
When the swinging lever 55 is rotated, it is pushed and operated by the operating body 69, so the hooked state is recognized and the communication circuit is cut off.

In this way, each flapper 37, 38, 48 is used as a force for opening each flapper 37, 38, 48.
The force applied to the lever 8 is only the biasing force from the swing lever biasing springs 70 and 71 provided on the middle plate, and the force applied by hooking is due to the spring 78 applied to the swing operation transmission contact surface 65a. Since it is used only to offset the force, even if the handset 100 is roughly handled and a strong impact is applied to the hook 66, there is no risk of the impact being applied to the mechanism formed in the middle plate 7. It is becoming.

In addition, since the micro switch 67 as a hook hook state detection switch is attached to the middle plate 7, the middle plate 7 can be handled as a single item during adjustment and inspection, making it easy to make adjustments related to coin trajectory and hook information. It has become a thing.

As explained above, according to the present invention, a coin track, a flapper for opening and closing the coin track, a swinging lever for operating the flapper, and a swinging lever are provided in one removable middle plate. The structure is equipped with a hook condition detection switch that detects the hooked condition from the swinging condition of the plate, which has the effect of allowing the middle plate to be handled as a single item during adjustment and inspection.
This has the effect of making it easy to make adjustments related to coin trajectories and hook information.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the internal structure of a public telephone in which the device according to the present invention is used, Fig. 2 is a schematic diagram of the middle plate showing the structure of the coin track, and Fig. 3 is a concrete diagram of the middle plate. 4 is a front view showing the state in which the first and second flappers in FIG. 3 are removed; FIG. 5 is a front view of the second flapper;
Fig. 6 is a front view of the first flapper, Fig. 7 is a perspective view of the rotating plate constituting the cradle mechanism, Fig. 8A is a sectional view taken along the line A-A in Fig. 3, and Fig. 8B is a 9 is a rear view showing the flapper operation lever device, FIGS. 10A and 10B are side views thereof, and FIG. 11 is a perspective view showing the hook operation interlocking device. 7... Middle plate, 32, 33... Return side stopper,
37...First flapper as orbit cover, 5
5, 56... Rocking lever, 66... Handset hook, 67... Hook state detection switch, 75, 8
0...Arm, R...Coin trajectory.

Claims (1)

[Scope of utility model registration request] In a coin track device of a public telephone, in which the lowering of the handset hook due to the weight of the handset is mechanically transmitted to open the coin track, thereby returning the coin and returning the coins stuck in the coin track, a middle plate on which a coin track is formed; a track cover that is attached to the middle plate so as to be openable and closable and constitutes one side wall of the coin track; a return stopper that is opened and closed in conjunction with the track cover; A swinging lever that opens and closes the track cover and the return side stopper by pushing, a hook state detection switch that detects the hooked state of the handset hook from the swinging state of the swinging lever, and a hook state detection switch that detects the hooked state of the handset hook from the swinging state of the swinging lever. an arm that mechanically transmits the lowering movement of the lever to the swinging lever, the middle plate is removably fixed, and the track cover, the return side stopper and the swinging lever are attached to this single middle plate. A coin track device for a public telephone, characterized by comprising a lever and a hook state detection switch.