JPS5834838Y2 - dial device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dialing device for a telephone, and particularly to a dialing device in which a license plate and a finger plate are less likely to be damaged in a public telephone or the like.

A conventional dial device has a structure as shown in FIG. 1 or 2.

That is, in the dialing device shown in FIG. A rotary shaft 5 is fixedly disposed at the central portion of the license plate 2.

A finger play (7) provided with a slide-in (6) is fixed to the rotating shaft (5).

In addition, in the figure, 8 is an attachment part of the number plate 2 to the housing 1, and 9 is a dial mechanism part.

In addition, in the dial device shown in FIG.
It has almost the same structure as the dial device shown in the figure, and differs from that in FIG. 1 in that the outer circumference of the license plate 2A is an inclined surface.

Furthermore, the number plates 2, 2A and finger plates 7 in these conventional dialing devices are often made of plastic resin, and the attachment part 8 of the number plates 2, 2A to the housing 1 is shown in FIG. As shown in the enlarged view, it is firmly attached.

However, in these conventional dial devices,
If the finger plate 7 protrudes outward from the number plate 2, 2A, or if a screwdriver or the like is carelessly inserted into the gap between the two,
Damage was often caused when an object collided with the outer peripheral edge of the license plate or the mounting portion 8 of the license plate 2, 2A.

For this reason, especially in public telephones, the finger plate 7 or the attachment part 8 of the license plate 2.
There were many cases in which the equipment was deformed as shown by the two-dot chain line in Fig. 3, which was an inconvenience in terms of security management.

In addition, because the number plate (F2t2 and Finger Play) 7 is made of plastic resin as described above, it may be damaged by cigarette burns or the like.

The purpose of this invention is to overcome the above-mentioned drawbacks and to provide a dial device in which the finger plate and license plate are less likely to be damaged.

An embodiment of the dial device according to this invention will be described below with reference to the drawings.

As shown in FIGS. 4 and 5, the telephone housing 11
has a circular dial mounting hole 11a.

A stud 12 is provided on the back side of the edge of this dial mounting hole 11a.
is fixed to the stud 12 with a set screw 13,
A dial mounting plate 14 is fixed, and a dial board 16 is attached to the housing 1 by a set screw 15 to the dial mounting plate 14.
It is fixed so that it is parallel to 1.

A dial mechanism section 17 is supported on the back side of the dial board 16, and the dial mechanism section 170 main shaft 18 is
It vertically passes through the dial board 16 and projects toward the front side.

The front number plate of the dial board 16 is attached to a number plate 2 made of metal such as stainless steel by means of a set screw 19.
0 is fixed at its mounting portion 20b.

The license plate 20 includes an annular plane body 22 having a license plate edge 23 bent almost perpendicularly to the back side I at the circular outer circumference, and an annular plane body 22 having a license plate edge 23 bent almost perpendicularly to the back side I on the circular outer periphery, and a recess 21 formed inside the annular plane part 22. Planar part 220 Cylindrical part 20 bent almost perpendicularly from the circular inner peripheral part to the back side
a, and a mounting portion 20b bent substantially perpendicularly inward from the cylindrical portion 20a.

The mounting portion 20b+z has a cylindrical stepped portion 20b' and a hole 32 in the center.

The license plate 20 is attached to the housing 11 at times.
It is made to be strongly pressed by elastic force.

The annular plane portion 22 is numbered from 0 to 9.

A finger plate 24 is inserted into the recess 21 of the license plate 20, and the center of the finger plate 24 is secured by a mounting screw 26 having a single hole 25 located off the axis of the head. , main shaft 18
is fixed.

The fin car plate 24 is made of metal such as stainless steel, and the front surface of the flat part 27 in which the sliding holes 29 are provided along the circumferential direction is located almost on the same plane as the annular flat part 22 of the license plate 20. There is.

On the outer periphery of the flat part 27 of the finger plate 24, there is a finger plate edge 28 bent almost perpendicularly toward the back surface.
have.

The outer diameter of the finger plate 24 is the same as the number plate 20.
0 is set slightly smaller than the inner diameter of the cylindrical step portion 20a.

For this reason, the finger plate edge 28 and the cylindrical step 2
The gap with 0a is extremely small, making it difficult to insert a screwdriver or the like.

Furthermore, the finger plate 24 includes a guide plate 3.
0 is integrally fixed, and the guide plate 30 is formed with a recess 31 having an inner diameter smaller than the outer diameter of the head of the mounting screw 26.

This recess 31 is into which the mounting screw 26 is inserted, and
It guides and supports a mounting tool 40 for the mounting screw 26, which will be described next.

That is, the installation tool 40 has a structure as shown in FIG. 6, and includes a lever part 41 as a rotation operation part,
A shaft 42 connected to the lever portion 41, a cylindrical portion 43 provided at the tip of the shaft 42 and housing the head of the mounting screw 26 inside the cylindrical portion 43,
6, and a protrusion 44 that engages with the hole 25 of No. 6.

Therefore, the mounting screw 26 is tightened or removed by rotating the lever portion 41 with the protrusion 44 engaged with the hole 25 and the cylindrical portion 43 supported in the recess 31.

As explained above, in the dial device of the present invention, the finger plate 24 is connected to the recess 20 of the license plate 20.
The annular plane part 22 of the license plate 20 and the plane part of the finger plate 24 are arranged on the same plane, so the license plate 20
By inserting a screwdriver or the like between the finger plate 30 and the finger plate 30, the finger plate 24 is prevented from being pried up, and the finger plate 24 is not damaged even when an object collides with it from the side.

Further, the end surface of the edge 23 of the license plate 20 is connected to the housing 1.
1, because it is strongly pressed by elasticity, the edge 2
3. Damage is also prevented in the event of a collision with a driver or object.

Furthermore, since the license plate 20 and the finger plate 24 are made of metal, they are less likely to be damaged than those made of plastic resin, and are also resistant to heat, thereby preventing damage from cigarette burns and the like.

Further, the license plate 20 is bent by forming a recess 21 on the inner diameter side of the annular plane part 22, and has an edge 23 on the outer diameter side.
Since the finger plate 24 has a bent edge 28, sufficient strength can be provided even if both are made of thin plate material.

[Brief explanation of drawings]

1 and 2 are sectional views showing dial devices according to conventional examples, FIG. 3 is an enlarged sectional view of main parts of FIGS. 1 and 2, and FIG. FIG. 5 is a front view showing the embodiment, FIG. 5 is a sectional view taken along the line V-■ in FIG. 4, and FIG. 6 is a perspective view showing a special installation tool. 11...Telephone housing, 11a...Dial mounting hole, 16...Dial board, 17...
...Dial mechanism, 1.8...Main shaft, 20...Number plate, 20a...
...Cylindrical step part, 20b...Mounting part, 21.
... Concave portion, 22 ... Annular plane portion, 23.
Pa...Number plate edge, 24...Finger plate, 25...Hole, 27...
... Flat part, 28 ... Finger plate edge, 29 ... Sliding, 30 ... Guided plate.

Claims (1)

[Scope of utility model registration request] A dial board 16 is attached to the back side of the phone casing 11 so as to be located inside the dial mounting hole 11a of the phone casing 11; a dial mechanism section 17 attached to the back side; an annular flat section 22 having a license plate edge 23 bent toward the back side beyond the outer periphery l;
A cylindrical step portion 20a is bent from the circular inner periphery of the annular planar portion 22 to the back side so as to form a recess 21 inside the annular planar portion 22, and a cylindrical step portion 20a is bent inwardly from the cylindrical step portion 20a. The end surface of the license plate edge 23 is elastically attached to the phone housing 1.
The mounting portion 20b is pressed against the front edge of the dial mounting hole 11a of No. 1 with the number plate 20 made of metal attached to the dial base plate 16: the outer diameter is slightly smaller than the inner diameter of the cylindrical stepped portion 20a. It has a small disk shape and has a finger plate edge 28 whose outer periphery is bent toward the back side, and the finger plate edge 28 is located inside the cylindrical step 20a of the license plate 200, Suriiri 2
A finger plate 24 made of a metal material is attached to the center of the main shaft 18 so that the front surface of the flat portion 27 having a diameter of 9 is located approximately on the same plane as the front surface of the annular flat portion 22 of the license plate 20. dialing device.