JPH0330944Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an opening/closing structure for a flap of a coin return slot, which is suitable for implementation in public telephones and the like.

[Conventional technology]

Conventionally, a flap opening/closing structure of this type of coin return opening is disclosed in Japanese Utility Model Application Publication No. 55-86271, and is constructed as shown in FIG. That is, reference numeral 1 denotes a device housing of a telephone, and a coin return opening 2 is provided at the bottom thereof, and a pair of brackets 3 are fixed to the back side of the periphery of the coin return opening 2. Reference numeral 4 denotes a coin return passage frame communicating with the coin return passage 5, which is attached to both brackets 3 with screws 6, and has mounting holes 8 coaxially provided in both side walls 7, respectively. Reference numeral 9 denotes a shaft for holding the flap, and both ends thereof are inserted into the respective mounting holes 8 and held therein. Reference numeral 10 denotes a retaining ring attached to the shaft 9, which prevents the shaft 9 from moving in the axial direction.
11 is a flapper that opens and closes the coin return slot 2;
A spring 12 is rotatably provided on the shaft 9.
is always biased in the direction of closing the coin return opening 2.

[Problem that the invention attempts to solve]

However, in the conventional flapper opening/closing structure, since the flapper 11 is biased in the closing direction by the spring 12, a shaft 9 and a retaining ring 10 are required in addition to the spring 12, which reduces the number of parts and manufacturing man-hours. The problem is that not only does the cost increase, but also the installation of the flapper 11 becomes complicated. Further, there was also the problem that the spring 12 could break due to long-term use, and durability could not be fully guaranteed.

The present invention was developed in consideration of these circumstances, and it is possible to reduce the number of parts and manufacturing man-hours, thereby reducing costs and streamlining the flap installation work, as well as ensuring sufficient durability. To provide a flap opening/closing structure of a coin return opening that can be guaranteed.

[Means for solving problems]

The opening/closing structure of the flapper of the coin return opening according to the present invention is such that the flapper is pivoted by a projection protruding from the flapper side or the housing side, and the flapper has an extension extending rearward near the pivot point of the flapper. It is biased in the closing direction by a weight fixed to the section.

[Effect]

In the present invention, the flapper rotates in the direction of opening the coin return opening when pressed, and in the direction of closing the coin return opening by the weight of the weight when the pressing state is released.

〔Example〕

1 and 2 are an exploded perspective view and a sectional view showing the opening/closing structure of the flapper of the coin return slot according to the present invention, and FIG. 3 is a sectional view showing the flapper. In these figures, what is indicated by the reference numeral 21 is a housing of a public telephone, which includes an upper housing 23 with holding parts 22a and 22b vertically disposed on the back side, and a lower housing 24 provided below this housing 23. The lower housing 24 is provided with a coin return opening 25. Further, a handset (not shown) is detachably placed on one side of the housing 21 via a handset mounting stand (not shown). Reference numeral 26 denotes a coin return passage communicating with the coin return port 25, which is open at the upper side and is provided in the lower housing 24, and has side walls 27,
Support parts 31 and 32 are provided at the upper end of the support part 28, in which recessed parts 29 and 30 are formed, respectively. 33
denotes a flapper that opens and closes the coin return opening 25, and a pair of protrusions 34 and 35 that project from both upper sides and serve as rotational fulcrums (pivot points) for the flapper 33 are placed in the recessed portions 29 and 30, respectively. and is rotatably supported by these protrusions 34 and 35.
Further, a protrusion 36 is provided at the lower end of the flapper 33 to abut against the bottom 26a of the coin return passage 26 and prevent it from coming out to the front of the lower housing 24. This protrusion 36 allows the flapper 33 to
The opening is regulated. 37 is the flapper 33
A weight that biases the flapper 3 in the closing direction.
It is fixed to an extension part 38 which has a weight heavier than the weight of the flapper 33 and extends rearward near the pivot point of the flapper 33 while maintaining a distance from the protrusions 34 and 35. 39
is a return port cover attached to the upper side of the coin return path 26, and has a pair of protrusions 40, 41 at the tips thereof, keeping a minute distance from the protrusions 34, 35 of the flapper 33 and covering the upper side of the protrusions 34, 35. The protrusions 40 and 41 are pressed by the pressing parts 22a and 22b.

In the opening/closing structure of the flapper of the coin return opening 25 configured in this way, when the flapper 33 is pressed with a finger, the coin return opening 25 is opened as the flapper 33 rotates in the opening direction. A finger can be inserted into the coin return passageway 26. Then, when the returned coin is taken out of the housing 21, the pressing force of the finger on the flapper 33 is released.
The flapper 33 is rotated in the closing direction by the weight of the weight 37, and the coin return opening 25 is closed.

In this embodiment, protrusions 34 and 35 are provided on both upper sides of the flapper 33, and concave portions 2 are provided on the support portions 31 and 32 of the coin return passage 26.
9 and 30, the present invention is not limited to this. As shown in FIG. 4, a pair of conical protrusions 42 (only one ) are provided in a protruding manner, and recesses 43 that fit into these protrusions 42 are provided on both upper sides of the flapper 33 to produce the same effect as in the embodiment. In this case, the flapper 33 is attached to the lower housing 24 by elastically deforming the supporting parts 31 and 32, and
The support portions 31 and 32 of the lower housing 24 are held by the protrusions 40 and 41 of the return cover 39, so that the support portions 31 and 32 of the flapper 33
Prevents it from falling off.

Further, in this embodiment, the holding portion 22a,
Although the structure in which the flapper 33 is attached to the lower casing 24 by covering the protrusions 34 and 35 with the protrusions 40 and 41 of the return port cover 39 pressed by the return port cover 22b, the present invention does not directly protrude with the presser parts 22a and 22b. The flapper 33 is attached to the lower housing 24, covering the children 34 and 35.
Alternatively, the recessed portions 29 and 30 may be formed in an undercut shape, and the protrusions 34 and 35 may be attached to the recessed portions 29 and 30.

Furthermore, in the embodiment, a case was explained in which the invention was applied to a flapper at a coin return slot of a public telephone, but the present invention is not limited to this in any way, and can of course be applied to various types of vending machines. It is.

[Effects of the invention] As explained above, according to the invention, the flapper is pivotally supported by protrusions protruding from both upper sides of the flapper or a part of the casing, and Since the flap is biased in the closing direction by a weight fixed to the extension part, when the flap is pressed with a finger, the coin return opening is opened as the flap is rotated, and the pressed state of the flap is confirmed. When released, the coin return port can be blocked by the weight's own weight. Therefore, compared to the conventional springs required to open and close the flap, the number of parts and manufacturing man-hours can be reduced, and costs can be reduced. Furthermore, since the flapper is easier to attach than when using a spring, the flapper attachment work can be streamlined. Furthermore, since the weight does not break like a spring, durability can be fully guaranteed. In addition, since the weight is provided at the top of the flapper, it can be placed farther away from the pivot point than if it were installed at the bottom (so that it does not become an obstacle to taking out the returned coins). It is possible to increase the biasing force in the direction, so it will not rattle open due to slight vibrations, etc.
The return port can be reliably closed, and when it is closed due to the weight of the weight from the open state, it does not return to rotation as quickly as when the weight is installed at the lower end, and therefore collides with the return port. Another advantage is that it allows the flap to be formed with a thinner wall.

[Brief explanation of the drawing]

Figures 1 and 2 are an exploded perspective view and a cross-sectional view showing the opening and closing structure of the flapper of the coin return slot according to the present invention, Figure 3 is a cross-sectional view showing the flapper, and Figure 4 is an opening and closing structure of the flapper of the coin return slot. FIG. 5 is an exploded perspective view showing another embodiment of the structure. FIG. 5 is an exploded perspective view showing the opening/closing structure of the flap of the conventional coin return slot. 24...Lower housing, 25...Coin return slot, 33
...Flatspa, 34, 35...Protrusion, 37...Weight, 38...Extension part.

Claims (1)

[Scope of utility model registration request] A flapper that opens and closes a coin return port provided in a device housing, and this flapper is rotatably supported by protrusions protruding from both upper sides of the flapper or a part of the housing. An opening/closing structure for a flapper of a coin return opening, characterized in that the flapper is biased in the closing direction by a weight fixed to an extension extending rearward near a pivot point of the flapper.