JPH0357515B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a structure for preventing paper jamming in a coin return slot.

[Conventional technology]

For example, public telephones, vending machines, etc. are equipped with coin storage devices, and are configured to allow calls and the removal of merchandise by sorting and collecting coins that have been inserted. The coin storage device described above is provided with a coin return mechanism that returns selected bad coins and spurious coins and returns surplus coins after the operation of the main device is completed. This type of coin return mechanism consists of a coin return track that is continuous with the coin sorting mechanism and the coin storage track, and a coin return port that is provided at the lower end of the track and opens at the front of the housing. The opening is normally closed by a flapper that can be opened and closed inward, and the user can push the flapper open inward to take out the return coins stored inside.

By the way, in the coin return opening of such a coin return mechanism, in the conventional structure, the back side of the coin return opening,
In particular, by stuffing the open end of the return track with paper or the like, return coins may be temporarily stored, leading to theft and theft. In particular, such problems are serious in equipment and devices intended for export, and it is necessary to take some countermeasures.

To briefly explain this using the conventional example shown in FIG. The container 4 is provided with a container 4 that is fixed to the inner surface of the housing 2 and has a part of its front surface opened to the front of the housing (generally the lower front side of the housing 2). There is. The opening 5 is configured to be opened and closed within the container 4 by a flapper 6 whose upper end 6a is rotatably supported inward by a support shaft 7. It is normally biased in the closing direction by a spring 8 wound around the shaft 7.

However, according to the conventional structure described above, the coin return container 4 has the coin return track 3 provided inside the housing 2 at a certain distance, and also has the function of temporarily storing the returned hardened coins. This container secures the push-opening action of the flapper 6, and has a deep and slightly larger volume space.For this reason, when the flapper 6 is pushed open from the outside as shown by the imaginary line in the figure, the container can be opened. If paper or the like is stuffed on the back side of the coin return track 3, especially on the open end side of the coin return track 3, malicious mischief such as theft could be carried out.

Conventionally, as a coin return opening structure that can prevent such paper jamming, etc., as shown in Japanese Utility Model Application Publication No. 57-161083, etc., there has been a coin return opening structure that has a same support shaft inside the flapper that is parallel to the flapper support shaft. A shielding door that can be rotated in the same direction is provided, and when the flapper is opened, the shielding door is rotated in the same direction in conjunction with this,
It has been proposed that the opening end of the coin return passage can be shielded with this shielding door.

[Problem that the invention seeks to solve]

However, in such a conventional structure, the flapper and the shield door are configured to open and close in the same direction, and when the flapper is opened, the coil spring presses the shield door and closes the open end of the coin return passage. Since the flapper is closed so as to shield it, if the flapper is left in a half-open state, the return passage side will not be completely shielded, and the shield door side will also remain in a half-open state. Therefore, it is impossible to completely avoid mischief, such as inserting a hand through the opening of the container and stuffing paper or the like between the shielding door and the opening end of the return track in this state, and it is impossible to completely prevent accidents such as theft. Considering these points, it is desired to develop a more practical paper jam prevention structure that can eliminate the above-mentioned problems.

[Means for solving problems]

In order to meet such demands, the paper jam prevention structure of the coin return slot according to the present invention supports a shutter that opens and closes the opening end of the lower end of the coin return track so as to be rotatable in a direction perpendicular to the flapper. At the same time, an engaging member that rotates the shutter in the closing direction in response to the opening operation of the flapper is provided integrally or integrally with the rear side of the flapper, and the bottom portion of the engaging member rotates the shutter in the closing direction in accordance with the opening operation of the flapper. The shutter is formed as an arcuate surface along the locus, and an engagement protrusion provided at the end of the shutter's rotating edge on the flapper side is engaged with the rear edge of the arcuate surface to allow the shutter to open the flap. The shutter is configured to be rotated in the closing direction when the shutter is closed, and an engagement relief portion for the engagement protrusion when the shutter is in the closed state is provided on the arcuate surface of the arcuate surface portion along the opening/closing direction of the flapper. .

[Effect]

According to the present invention, by supporting the shutter for opening and closing the return track so as to be rotatable in the direction perpendicular to the shutter on the back side of the flapper, even if a hand is inserted through the opening when the flapper is in a half-open state, the back of the flapper This can prevent paper from being stuffed between the shutter, which is located further back than the side engaging member and which is immediately closed when the flapper is opened, and the opening end of the return track. Further, according to the present invention, as described above, the shutter can be immediately brought into the closed state when the flapper is opened, and the shutter can be brought into the closed state by the engagement escape portion provided on the arcuate surface of the engaging member on the rear side of the flapper. The flapper can be pushed wide open and fully opened while the flapper is held in place.

〔Example〕

Hereinafter, the present invention will be explained in detail using embodiments shown in the drawings.

Figures 2 to 4 a and b show an embodiment of the paper jam prevention structure of the coin return slot according to the present invention, and in these figures, the same or corresponding parts as in Figure 1 are the same. They are numbered and their explanations are omitted.

Now, according to the present invention, the shutter 10 that can open and close the opening end of the lower end of the coin return track 3 facing the upper end on the back side of the coin return container 4 can be rotated in a direction perpendicular to the flapper 6. When the flapper 6 is opened, the shutter 10 is engaged with an engaging member 14 (edge on the rear end side of the arcuate surface portion 14c) provided on the back side of the flapper 6 and rotated in the closing direction. It is characterized by its structure.

To explain this in detail, reference numeral 11 in the figure indicates the container 4.
A cover plate that is placed on the upper end of the back side of the
This cover plate 11 has a long groove 12 (12a, 12b) continuous with the coin return track 3. Here, in this embodiment, the coin return trajectory 3
(one is not shown), for example, a 100 yen coin and
The cover plate 11 described above is shown when using one for two types of coins, a 10 yen coin and the like.
are provided with corresponding long grooves 12a and 12b, respectively. And the shutters 10, 10
A bearing part 13 is provided on both sides of the cover plate 11, and a shaft part 10a protruding from its outer end is provided on both sides of the cover plate 11.
It is configured to be rotatable by being supported by. According to this embodiment, the two shutters 10, 10 are arranged in the shape of a double door, and are configured such that the opening angle with the cover plate 11 is an acute angle.

Moreover, engaging protrusions 10b, 10b are provided protrudingly provided on the rotating edges of the shutters 10, 10 on the flapper 6 side, and engagement protrusions 10b, 10b are provided on the rear side of the flapper 6. Accordingly, an engaging member 14 for opening and closing the flap is integrally disposed and configured to operate integrally in accordance with the movement of the flapper 6. That is, this engaging member 14 includes a pair of side plates 14a that are approximately fan-shaped;
14b and the circular arc surface portion 14 that connects the circular arc portions.
The side plates 14a and 14b are rotatably supported on a spindle 7 of the flapper 6, and are attached together with the flapper 6 in the closing direction by a spring 15 wound around the spindle 7. Forced. The engaging protrusion 1 of the shutters 10, 10 is attached to the edge of the back side of the circular arc surface portion 14c of the engaging member 14.
0b and 10b are engaged to close the shutters 10 and 10 when the flapper 6 is opened, and when the shutters 10 and 10 are in the closed state on the outer surface of the circular arc surface portion 14c. A pair of engagement grooves 16, 16 are formed along the opening/closing direction of the flapper 6 as engagement relief portions at positions corresponding to the engagement protrusions 10b, 10b. These engaging grooves 16, 16 have one end connected to the shutter 10,
It opens at the side edge of flapper 6 and has a length that corresponds to the amount of rotation of flapper 6 .

In the figure, 17 is a stopper piece protruding from the inside of the return container 4, and 6b is a locking protrusion at the lower end of the flapper 6 that restricts the amount of rotation of the flapper 6 by engaging with this stopper piece. In this embodiment, the engaging member 1
A notch 14b and the like are formed so that the front end of the flap 4 engages with the back surface of the flapper 6.

In such a configuration, the flapper 6
normally closes the opening 5 of the container 4 as shown in FIGS. Forced. Further, the shutters 10, 10 have their engaging protrusions 10b, 10.
b is in contact with the edge on the back side of the circular arc surface portion 14c of the engaging member 14, and is in an open state due to its own weight. Of course, a spring or the like may be provided to bias these shutters 10, 10 in the opening direction.

On the other hand, when the flapper 6 is pressed inward and opened, the engagement member 14 is also rotated, and the engagement protrusion 10 engaged with the rear side edge of the flapper 6 is rotated.
The shutters 10, 10 are rotated in the closing direction by b, 10b. At this time, the engagement position between the engagement protrusions 10b, 10b of these shutters and the rear side edge of the engagement member 14 moves toward the center, as shown by the arrow in FIG. 4a. These engaging protrusions 10b, 10b engage in the engaging grooves 16, 16 of the engaging member 14 in the closed state of the shutters 10, 10, and prevent further rotation between the flapper 6 and the engaging member 14. As shown in FIGS. 3b and 4b, it is now possible to fully open the flapper 6 by pushing it widely apart with the shutters 10, 10 in the closed state without blocking the shutter movement. There is. Of course, at this time, the shutters 10, 10 are blocking the return track 3, thereby reliably preventing paper from being stuffed into this area.

Furthermore, when the flapper 6 is released, each member operates in the opposite manner to the above-described operation and returns to its original state.

Therefore, with such a configuration, the return track 3 side can be reliably closed during the opening operation of the flapper 6, and paper jamming can be prevented, and the configuration is simple and the operation can be performed smoothly and reliably. Do it,
Furthermore, since sufficient space can be secured under the flapper 6, the engaging member 14, and the shutters 10, 10, there is no problem in accumulating and taking out returned coins, and the depth of the container 4 is not required. , the entire mechanism can be made smaller and more compact, especially in the height direction. Further, in the support structure for the shutter 10 described above, since its rotation direction is perpendicular to the flapper 6, it has the advantage that it can easily respond to changes in the shape of the return track 3 side and its arrangement state. be.

Note that the present invention is not limited to the structure of the embodiment described above, and the shape, structure, etc. of each part may be modified or changed as appropriate. For example, the engaging member that opens and closes the shutter 10 by the movement of the flapper 6 is not limited to the structure of the above-described embodiment, but may be any suitable modification.

Further, as in the above-described embodiment, the arcuate surface portion 14c
By using the engaging member 14 having the engaging groove 16 and the engaging groove 16, it is possible to prevent paper from being stuffed on the back side of the flapper, which is highly effective in guaranteeing the operation of the main equipment. In this case, it would be advantageous to form the engaging member 14 separately from the flapper 6 in terms of workability, parts management, and especially in terms of maintaining the versatility of the flapper 6 with other models. It will be clear that they may also be formed in one piece.

Further, in the above-described embodiment, a case was explained in which two shutters 10, 10 were attached to two types of return tracks 3, 3, but the present invention is not limited to this, and the present invention is not limited to this. As shown in FIG. 5, three shutters 10, 10, 10 are provided corresponding to the long grooves 12a, 12b, 12c corresponding to the return track, respectively. is also free.

〔Effect of the invention〕

As explained above, according to the paper jam prevention structure of the coin return slot according to the present invention, the shutter that opens and closes the opening end of the lower end of the coin return track is rotatably supported in a direction perpendicular to the flapper, and The shutter can be opened and closed by engaging the engaging protrusion provided on the end of the rotating end of the shutter on the flapper side with the rear side edge of the engaging member on the rear side of the flapper. Despite the configuration, when the flapper opens, the return track is immediately blocked by the shutter, which reliably prevents paper from being stuffed into this area and prevents theft accidents. Since the directions are different, it is possible to provide more internal space, and it can be easily applied to existing models without major design changes, and the connection with the return track side can be changed. It has various excellent effects, such as being able to easily deal with it even if it gets hot.

Further, according to the present invention, the bottom of the member that is integrally provided on the back side of the flapper and that engages with the engagement protrusion on the shutter side is formed into an arcuate surface, and the arcuate surface has no hindrance to opening and closing the flapper. Since the engagement relief part is formed to engage with the engagement protrusion on the shutter side when the shutter is in the closed state, the shutter, which is immediately brought into the closed state when the flap is opened, can be left in the same state. It is possible to fully open the flap by pushing it wide open, making it easy to remove coins from the return container, and preventing mischief such as stuffing paper into the back of the flap, which is closed. The presence of a shutter or an engaging member having an arcuate surface portion can appropriately and reliably prevent this, which is highly effective in guaranteeing the operation of the main equipment.

[Brief explanation of drawings]

Figure 1 is a schematic cross-sectional view showing a conventional coin return slot;
Fig. 2 is an exploded perspective view of essential parts showing an embodiment of the coin return slot to which the paper stuffing prevention structure according to the present invention is applied, and Figs. 3 a, b and 4 a, b show its assembled state and operating state. FIG. 5 is a schematic diagram showing a modification of the present invention. DESCRIPTION OF SYMBOLS 1... Coin return port, 2... Housing, 3... Coin return track, 4... Coin return container, 5... Opening, 6... Flap, 7... Support shaft, 10... Shutter, 10a... Support shaft,
10b...Engaging protrusion, 11...Cover plate, 12
...long groove, 13...bearing part, 14...engaging member, 14c
...Circular surface portion, 15...Spring, 16...Engagement groove.

Claims (1)

[Scope of Claims] 1. A coin return container 4 which is disposed below the coin return track 3 and whose front part opens to the front of the housing 2, and whose front opening is opened and closed within this container. In the coin return opening 1, which is provided with a flapper 6 whose upper end is pivotally supported so as to be rotatable inward, the lower open end of the coin return track 3 is placed above the coin return container 4 with its upper end. A shutter 10 is rotatably supported by a shaft 10a having an axis perpendicular to the axial direction of the shaft 7 of the flapper 6 so as to be opened and closed, and has an engaging protrusion 10b at the end of the rotational edge on the flapper 6 side. and an engaging member 14 provided on the rear side of the flapper 6 and supported on the flapper shaft 7 so as to rotate the shutter 10 in the closing direction in response to the opening operation of the flapper 6. The engaging member 14 has a bottom surface formed as an arcuate surface portion 14c along the rotation locus of the lower end of the flapper 6, and the engaging protrusion 10b of the shutter 10 engages with the rear edge of the arcuate surface portion 14c. The shutter 10 is configured to be rotated in the closing direction when the flapper 6 is opened, and the shutter 10 is arranged on the circular arc surface of the circular arc surface portion 14c along the opening/closing direction of the flapper 6. A structure for preventing jamming of paper in a coin return slot, characterized in that an engagement escape part 16 of the engagement protrusion 10b in the closed state is provided. 2. The structure for preventing paper jamming in a coin return slot according to claim 1, wherein the engaging member 14 that engages with the shutter 10 on the rear side of the flapper 6 is formed integrally with the flapper 6.