JPS6342607Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a flap opening/closing device for public telephones that makes it possible to reduce the number of parts.

Generally, in wall-mounted public telephones, by hanging the handset on the hanger arm after the end of a call, the flapper that forms one side of the coin passage is mechanically opened and excess coins are returned to the user. A flap opening/closing device is provided.

Conventionally, this type of flapper opening/closing device has been provided with a complicated transmission device between the hanger shaft and the flapper in order to open and close the flapper by the operation of the hanger arm. A spring was provided to give the arm a return habit. For this reason, there are disadvantages in that the number of parts is large, the structure is complicated, and assembly work is troublesome.

The present invention was developed in view of these drawbacks, and by connecting the hanger shaft axis and the axis of the rotating member so that they are located on the same axis, the rotating member has a return habit. To provide a flapper opening/closing device for a public telephone, which allows the force of a spring to also act on a hanger arm, transmits the operation of the hanger arm to a rotating member, and easily opens and closes the flap. The configuration and the like will be explained in detail below with reference to embodiments shown in the drawings.

Fig. 1 is an external perspective view of a public telephone equipped with a flap opening/closing device according to the present invention, Fig. 2 is a vertical cross-sectional view in the talking state, and Figs. 3a and 3b show the mounting structure of the rotating member. The side view and front view shown, and FIG. 4 are also exploded perspective views showing the mounting structure of the rotating member. In these figures, 1 is a telephone body consisting of a box-shaped housing 2 with an open front and a front door 3 that covers the front opening of this housing 2, and a handset 4 is located on the left side. is detachably provided on the hanger arm 5. A shaft 5a provided on the side of the rear end of the hanger arm 5
is rotatably supported by the housing 2. A rotating member described below is disposed so as to be located substantially on the same axis as the axis of the shaft 5a.

A support member 6 is fixed to the upper part of the inner wall of the housing 2, and a rotary member 7 is rotatably supported on the support member 6 via a pair of bearing members 8 and 9. To explain the supporting member 6 and the rotating member 7 in more detail, as shown in FIGS. 3 and 4, the supporting member 6 is bent into a substantially U-shape, thereby forming a pair of opposing bent portions. 10A and 10B, and holes 11 and 12 are formed in these bent portions 10A and 10B, respectively, on the same axis. In this case, at least one hole, e.g.
2 is opened at the upper end of the bent portion 10B by a notch groove 13.

The pair of bearing members 8 and 9 rotatably supported in the holes 11 and 12, respectively, are formed almost identically, so only one of the bearing members 9 will be explained. A small diameter part 14a to be inserted, a large diameter flange part 14b which is connected to one end surface of this small diameter part 14a and is brought into close contact with the inner surface of the bent part 10B, and an approximately central part of this large diameter part 14b. It is comprised of a plate-shaped fixing rib 14c protruding toward the direction of the other bearing members 8, and a grooved hole 14d passing through approximately the center of the small diameter portion 14a and the large diameter flange portion 14b. Groove 1 of the hole 14d
5 is constituted by two grooves having the same groove width and formed at positions 180 degrees apart. A long hole 16 is formed in the fixing rib 14c.

The rotating member 7 is formed of a plate and is longer than the distance between the pair of bent portions 10A and 10B, and has a spring locking piece 1 at the middle of its upper end a.
7. A flapper actuating arm 18, and a step-shaped stopper 19 formed on the outside of the spring locking piece 17 and the flapper actuating arm 18, respectively, by making the width of both ends smaller than that of the center part.
20 are provided. The spring locking piece 17 is provided to protrude upward from the rotating member 7, and the flapper operating arm 18 is provided to protrude toward the front of the rotating member 7, so that they can be moved in directions approximately 90 degrees different from each other. Extending. On the other hand, a stopper piece 21 bent in the same direction as the flapper actuating arm 18 is integrally provided at the intermediate portion of the lower end b of the rotating member 7. A screw hole 22 is formed at the right end of the rotating member 7 in correspondence with the elongated hole 16 formed in the fixing rib 14c of the bearing member 9.

When attaching the rotating member 7 to the support member 6, first attach both ends of the rotating member 7 to each bearing member 8,
9, respectively, and insert them into the holes 14d in alignment with the grooves 15 of No.9. At this time, the upper and lower ends a and b of both ends of the rotating member 7 are fitted into the grooves 15, and rotation of the rotating member 7 is prevented. Next, the small diameter portion 14a of the bearing member 8 is inserted into the hole 11 of the bent portion 10A, and the large diameter collar portion 14b is brought into close contact with the bent portion 10A. is inserted into the hole 12 through the notch groove 13 of the bent portion 10B. In this state, the rotating member 7 is shifted in the direction of the bent portion 10A, and the left ends of the stopper 19 and the stopper piece 21 are brought into contact with the bearing member 8, thereby preventing the bearing member 8 from moving in the axial direction. Then, shift the other bearing member 9 in the direction of arrow A in FIG. The attachment of the rotating member 7 is completed by fixing it to the rib 14c. As a result, the rotating member 7 is rotated together with the pair of bearing members 8 and 9.

It goes without saying that the left end portion of the rotating member 7 may be fixed to the fixing rib 14c of the bearing member 8 by screwing.

Therefore, when the hanger arm 5 rotates due to engagement and disengagement of the transmitter/receiver 4, since the hanger shaft 5a and the rotating member 7 are connected, the rotating member 7 also rotates at the same time. The spring locking piece 17 of the rotating member 7 is locked by a spring 23 attached to the inner wall of the housing, and the spring 24 always moves the rotating member 7 in the return direction (arrow x in FIG. 2).
direction).

An upper part of a base plate 25 indicated by a chain line is fixed to an appropriate location of the support member 6, and a well-known coin sorting device 26, also indicated by a chain line, is attached to the lower part of the base plate 25.
is installed. Further, a flapper 27 which can be opened and closed and forms a coin passage together with the substrate 25 is attached to the upper part of the substrate 25, and a flapper opening/closing rod 28 attached to the upper part of the flapper 27.
is engaged with the flapper operating arm 18 of the rotating member 7.

In such a configuration, in the communication state shown in FIG. 2, that is, in the state in which the handset 4 is removed from the hanger arm 5, the rotational behavior of the rotating member 7 due to the force of the spring 24 acts on the hanger arm 5. , the hanger arm 5 is in a raised position,
In this state, flapper 27 is closed. Therefore, when a user inserts a coin into the coin slot 29 (see Figure 1) provided in the front door 3 and the coin passes through the coin sorting device 26 and is determined to be a regular coin, the denomination of the coin is determined. You can make calls according to your schedule.

Next, after the end of the call, when the handset 4 is hung on the hanger arm 5 as shown in FIG. Rotate in the direction of arrow y in Fig. 6. Therefore, the flapper operating arm 18 pushes down the opening/closing rod 28 to open the flapper 27. Therefore, in this state, the coin 30 inserted into the coin slot 29 is returned to the return slot 32 through the return passage 31, so that the state in which communication is not possible is maintained.

Although FIGS. 2 and 6 show a heat-shrinkable tube as a means for connecting the rotating member to the hanger shaft, the present invention is not limited to this, and as shown in FIG. 7a. One made of thermosetting synthetic rubber, one made of coil spring 33 as shown in b, and a groove 34 formed in the hanger shaft as shown in c,
This may be achieved by fitting a rotating member into this groove portion 34. In this case, in order to make the connection stronger, if the fitting is tapered or if a screw or the like is used after the fitting, the connection will become even stronger. Alternatively, as shown in d, it may be simply made of adhesive. In short, any structure may be used as long as one end of the hanger shaft and the end of the rotating member are connected so that the axis of the hanger shaft and the axis of the rotating member are located on the same axis.

As explained above, the flap opening/closing device for a public telephone according to the present invention is extremely simple in that the axis of the hanger shaft and the axis of the rotary member are located approximately on the same axis, and the rotary member is connected to the hanger shaft. With this configuration, the hanger arm can also be returned to its original position by the force of the spring that gives the rotating member a return habit, so there is no need for a spring for returning the hanger arm or its mounting member.
Not only can the number of parts be reduced, but
Assembly work becomes easier and costs can be reduced.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a public telephone incorporating a flapper opening/closing device according to the present invention, Fig. 2 is a vertical cross-sectional view in the same state when a call is exhausted, and Figs. 3 a and b.
4 is an exploded perspective view showing the mounting structure of the rotating member, and FIG. 5 is for explaining the assembly of the mounting structure of the rotating member. Figure 6 is also a vertical cross-sectional view after the end of the call, Figure 7 a, b, c, d
FIG. 6 is a perspective view showing another embodiment of the connection between the hanger shaft and the rotating member. 1...Telephone body, 5...Hanger arm, 5
a... Hanger shaft, 7... Rotating member, 18
...Flatspa operating arm, 27...Flatspa.

Claims (1)

[Scope of utility model registration request] In a flap opening/closing mechanism of a public telephone, which has a hanger arm rotatably supported by a hanger shaft, and which opens and closes a flap in a coin passage by operating the arm by engaging and disengaging a transmitter, the axis of the hanger shaft is and an axis of a rotating member which has a flap actuating arm for opening and closing the flap and is rotatably supported within the housing, and the rotating member is arranged so that the axis is substantially coaxial with the rotating member. A flap opening/closing device for a public telephone, characterized in that one end of a hanger shaft and an end of a rotating member are connected.