JPS5816284Y2 - Mounting structure of hanger shaft in public telephone - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for mounting a bunker shaft in a public telephone.

Fig. 1 shows a public telephone that employs a conventional hanger shaft mounting structure. In this structure, the reference numeral 1 denotes a housing, and 2 denotes means for welding or screwing to the back plate 1a of the housing 1. A bracket 3 having a substantially U-shaped cross section is fixed by a bracket 20, and a shaft 4 is rotatably supported on vertical parts 2a and 2b, which constitute a pair of arms on both sides of the bracket 20. The base end, the housing 1
The caulking is fixed to the protruding end 3a of the hanger shaft 3 that protrudes further outward, and the transmitter/receiver ((
A hanger arm 5 having a holding part 4a for holding the hanger arm 4 (not shown) is studded on the side plate 1b of the housing 1 so as to restrict movement of the hanger arm 4 in the horizontal direction (in the direction of arrow A) together with the housing 1. Bolt 1c and oak) Id
6 is a torsion spring that is wound and fixed around the hanger shaft 3, and one end 6a of the torsion spring 6 stands integrally with the bushing lever 7. At the same time, it is hooked on the provided pin 7a.

The other end 6b is hooked to the horizontal part 2c of the bracket 2, giving the hanger shaft 3 the habit of always rotating in a fixed direction, and when the handset is removed from the hanger arm 4. The hanger arm 4 is configured to be restored by the biasing force.

However, in the above structure.

The hanger arm 4 is horizontally swingable within the gap between the protector 5 and the housing side plate 1b, and the hanger arm 4 is a horizontal part of the bracket 2 that pivots on a fixed hanger shaft 3. 2c is fixed to the housing 1. For example, if the hanger arm 4 is moved in the direction of the arrow A by mischief or the like, force will be applied to the caulking part 8 between the hanger arm 4 and the hanger shaft 3 due to the movement. In addition, due to this repeated movement, there was a problem that the hanger arm 4 and the hanger shaft 3 would eventually fall into the caulked portion 8, causing so-called looseness between the hanger arm 4 and the hanger shaft 3.

The purpose of the present invention was made in view of the above-mentioned drawbacks, and by fixing only one end of the bracket to the housing and making the other end swingable, the hanger shaft pivotally supported by the bracket can be swung. To provide a mounting structure for a banger shaft in a public telephone, which is movable and reliably prevents rattling at a caulked portion between a hanger arm and a hanger shaft due to horizontal movement of the hanger arm.

The details of the present invention will be explained below using an embodiment shown in FIG.

Figures 2 to 4 are a side view showing an embodiment of the hanger shaft mounting structure for a 1m public type hanger shaft according to the present invention, a vertical sectional view of the main part when this side view is cut along the line ■-■, and In the cross-sectional views of main parts, the reference numeral 9 in these figures is a housing, and the reference numeral 10 is a bracket formed of an elastic member and having a substantially U-shaped cross section. The side is fixed to the outer surface of the side plate 9a of the housing 9 by a stud bolt 11 and a nut 12 screwed thereto, and the horizontal part 102 is raised to the side plate 9a in a state perpendicular to the side plate 9a. It protrudes into the housing 9 from the opening, and the other vertical portion 103 side is configured to be swingable.

Therefore, the bracket 10 has one vertical portion 101
The horizontal portion 102 as a side base end is configured to be elastically deformable in the direction of arrow B in FIG.

Further, the vertical portions 101 and 103 of this bracket 10 are provided with through holes (not shown) through which the hanger shaft 13 passes through at positions corresponding to each other, and the hanger shaft 13 has its both ends connected to the through holes. By inserting the vertical parts 101, 10 of the bracket 10 into
3 is rotatably supported.

Further, a hanger arm 14 is integrally fixed to the protruding end of the hanger shaft 13 that protrudes outward from the vertical portion 101 of the bracket 10 by caulking. :
The protruding end protruding outward from 3 has an L-shape (not shown).
A bushing lever 15 for operating the hook switch is fixedly mounted.

Therefore, the hanger arm 14 and the bushing lever 1
5 and is configured to cooperate with each other via a hanger shaft 13.

Furthermore, a torsion spring 16 for restoring the hanger arm is wound and fixed around the hanger shaft 130 located between the vertical parts 101 and 103 of the bracket 10.

That is, this torsion spring 16 has one end 16a fixed to the hanger shaft 13, and the other end 16b hooked to the horizontal portion 102 of the bracket 10.

The hanger shaft 13 is always given the habit of rotating in a fixed direction.

The hanger arm 14 has its proximal end fixed to the hanger shaft 13 by caulking, and the other end is composed of a horizontal part 141a and lug pieces 141b located on both sides of the horizontal part 141a. A holding portion 141 for holding the container 17 is provided.

Further, the stud bolt 11 is stud-welded to the side plate 18a of the protector 18, and the threaded portion provided on the stud bolt 11 is connected to the threaded portion provided on the vertical portion 101 of the bracket 10 and the side plate 9a of the housing 9. Hole (
(not shown), and then the nut 12 is screwed into a threaded portion protruding inward from the side plate 9a of the housing 9.

The protector 18 and the bracket 10 are fixed to the housing 9 at the same time.

Further, as shown in FIG. 2, the side plate 18a of the protector 18 is provided with a pair of stoppers 1 sb and 18c for regulating the vertical movement of the hanger arm 14. and the vertical portion 101 of the bracket 10 are configured to restrict horizontal movement of the hanger arm 14.

Now, the hanger arm 14 shown by the two-dot chain line in FIG.
A position 14a indicates the position when the handset 17 is removed from the hanger arm 14.

With the above configuration, even if the hanger arm 14 is moved horizontally (in the direction of arrow C in FIG. 4) by, for example, a prank or the like.

Since the bracket 10 that pivotally supports the hanger shaft 13 that is integrally fixed to the hanger arm 14 is elastically deformed in the direction of arrow B due to its elasticity, the hanger arm 14 and the hanger shaft 13 are caulked. The stress that causes the part 20 to break is considerably absorbed by this elastic deformation and becomes small, so that the caulked part 20 does not wobble as in the conventional case.

In addition, in the embodiment described above...
Although the fixation between the hanger shaft 13 and the hanger shaft 13 is performed by caulking means, the present invention is not limited to this.
This has the effect of preventing damage caused by concentration of stress at one location on the hanger arm.

As explained above, according to the present invention, only one end of the bracket is fixed to the housing, and the other end is swingable, so that the hanger arm can be moved horizontally to This is because the stress applied to the caulked portion with the ringer shaft can be absorbed to a large extent by the rocking motion of the bracket.

This has a practically excellent effect in that it is possible to reliably prevent the rattling of the caulked portion that occurs in the past as the hanger arm moves in the horizontal direction.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of the main part of the mounting structure for the ringer shaft in a conventional public telephone, and Figures 2 to 4 show an example of the mounting structure for the ringer shaft in the public telephone according to the present invention. FIG. 2 is a side view shown in FIG. 9... Housing, 10... Bracket, 1
01゜103...Vertical part, 102...
Horizontal part, 13...hanger shaft.

Claims (1)

[Scope of Claim for Utility Model Registration] A hanger shaft having a hanger arm integrally fixed to one end and rotatably supported between arms on both sides of a U-shaped bracket fixed to the housing. In the public telephone, the bracket has only one arm fixed to the housing so that the other arm can swing freely, and the arm shaft has the arm fixed to the housing. so that one end of the hanger arm is located on the side. A mounting structure for a shaft in a public telephone, characterized in that the bracket is supported between the arms of the bracket.