JPH0212763Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mounting structure for a hook button of a telephone. The hook button typically rolls to turn the hook switch on or off as the handset is raised or lowered. Therefore, the hook button must be rotatably supported on the housing or base of the telephone, so that it cannot fall off from the housing or base not only during operation of the telephone, but also during assembly, adjustment, maintenance and inspection. It must be installed in a structure that prevents

The conventional hook button installation structure is such that the hook button is pivoted at a specified position and then a stopper is screwed down to prevent it from falling off, or the hook button is mounted at a specified position in a pivoted manner, and the phone is completed. The structure is such that it is regulated by a hook switch or the like to prevent it from falling off, but the former structure requires a lot of assembly man-hours as it requires the work of screwing the stopper. Regarding the structure, there is a risk that the hook button may fall off during assembly work after it is mounted, or when the housing of the telephone is removed during maintenance and inspection. In addition, in a telephone that has a hook button attached to the housing, when the housing is lifted, the hook button rolls downward around its pivot point and hangs down from the pivot point. The hanging hook button obstructs the fitting operation. For this reason, it is necessary to carry out the installation work while keeping the hook button in a horizontal position, which has the disadvantage that it is extremely difficult to assemble or hold the phone, and neither of these structures can be called perfect as a hook button mounting structure.

The present invention has been developed to solve the above-mentioned problems, and it is a hook button that can be installed extremely easily and in a short time, and that does not easily fall off after it has been installed. The purpose is to obtain a mounting structure.

For this purpose, in the present invention, a protrusion is provided on or near the rolling axis of the hook button, and the housing is bent by the protrusion to define the hook button when the hook button rolls in the mounting direction. Elasticity that prevents the hook button from rolling by blocking the protrusion against rolling in the direction of falling off, and maintains the position of the hook button in a substantially horizontal direction. A plate-like protrusion is provided.

Embodiments of the present invention will be described below with reference to the drawings.

All drawings show examples of the present invention.
Fig. 1 is a perspective view of the hook button, Fig. 2 is a perspective view of the hook button attachment part of the housing, Fig. 3 is a perspective view showing the hook switch attached to the housing, and Figs. 4 A to F show the installation work of the hook button. , and FIG. 5 is a sectional view of the main part. Note that FIGS. 1 to 3 are drawn viewed from the back side (the side facing the inside of the telephone).

In Figures 1 to 5, 1 is a hook button;
2 is a housing, in the hook button 1, 11 is a rolling shaft that is the center of rolling of the hook button 1, 12 is a protrusion for preventing falling off, and 13 is on which the driving force of the hook switch (the weight of the handset) acts. A hook button body, 14 is an arm connecting the hook button body 14 and the rolling shaft 11, 15 is a hook switch actuating body for operating the hook switch, in the housing 2, 21 is the housing body, 22 is a receiver receiver, and 23 is a hook button. 1 rolling shaft 11
24 is a plate-like projection for preventing the hook button 1 from falling off; 25 is a hook button hole for exposing the hook button body 14 to the outside of the housing.

The hook button 1 is formed by a rolling shaft 11 and a hook button body 13 connected by an arm 14. The rolling shaft 11 is provided with a protrusion 12, and the hook button body 13 is provided with a hook switch operating body 15.

The rolling shaft 11 is provided extending from both side surfaces of the arm 14 in a direction perpendicular to the side surfaces, and the length of one side 11A is set longer than the length of the other side 11B. Further, the protrusion 12 has a shape that forms a stepped portion 12A with respect to the rolling shaft 11 on the side corresponding to the housing body 21 when the hook button 1 is attached to the housing 1, and the projection 12 It is provided approximately at the center of the portion surrounded by the 11 arms 14. Note that the protrusion 12 is provided at a different location on the rolling shaft 11 from the above in relation to the location of the plate-like protrusion 24 provided on the housing 2, or in the vicinity thereof (for example, the arm 14).
It may be.

A pair of bearings 23 are provided in the lower part of the back surface of the handset receiver 22, which is recessed from the housing surface in order to place the earpiece of the housing 2. A plate-shaped protrusion 24 is provided at approximately the middle of the receiver 22, and a hook button hole 25 is provided at the bottom of the receiver 22 so that the hook button body 13 is exposed to the outside of the housing 21.

The inner spacing A of the pair of bearings 23 is longer than the length "B+C" which is the sum of the width B of the hook button 1 (width of the arm 14) and the length C of the shorter rolling shaft 11B, and It is set shorter than the length "B+D", which is the width B of 1 and the length D of the longer rolling shaft 11A.

Further, the plate-shaped protrusion 24 is provided in a cantilever shape at a location corresponding to the protrusion 12 provided on the rolling shaft 11 when the hook button 1 is attached to a specified location, and is itself a plate. It has elasticity in the thickness direction (arrow E direction). As shown in FIG.
Its position and length (height) are set so that it is located inside the fan-shaped locus drawn by the tip 12B of No. 2 (inside the dotted line in FIG. 5).

The above handset receiver 22, bearing 23 and plate-like projection 2
4 is usually formed integrally with the housing body 21 by synthetic resin molding. The above-mentioned elasticity necessary for the plate-shaped projection 24 utilizes the elasticity that the synthetic resin has after being molded.

Next, the procedure for attaching the hook button 1 described above to the housing 2 will be explained with reference to FIGS. 4A to 4F.

First, with the surface of the housing 2 facing downward, the hook button 1 is stood up as shown in FIG. 4A, and the longer rolling shaft 11A is inserted into the hole of one of the bearings 23 from above. Next, as shown in FIG. 4B, the hook button 1 is changed from an inclined position to a vertical position. In this state, the axial direction of the shorter rolling shaft 11B of the hook button 1 is in the direction of the hole of the other bearing 23, and the protrusion 12 of the hook button 1 and the plate-shaped protrusion 24 of the housing 2 are spaced apart. Further, at this time, the position of the hook button body 13 does not yet match the position of the hook button hole 25 of the housing 2.

Next, as shown in FIG. 4C, the hook button 1 is moved to the right in the figure while being kept upright, and the shorter rolling shaft 11B is inserted into the hole in the bearing 23. When this state is viewed from the side, as shown in FIG.
It moves to a position (on the rolling trajectory of the hook button body 13) that matches the position of the hook button hole 25.

Next, press the hook button 1 as shown in Fig. 4E.
It is rolled in the direction of the specified position (toward the back side of the paper in FIG. 4C, to the left in the drawing in FIG. 4E). At this time, the plate-like protrusion 24 is bent by the tip 12B of the protrusion 12 rotating about the rolling shaft 11 against its elasticity.

In this way, the hook button 1 is attached to the plate-like protrusion 24.
When the tip 12B of the protrusion 12 is forcibly rolled to the specified position against the elasticity of the protrusion 12, the tip 12B of the protrusion 12 comes off the plate-like protrusion 24, and the plate-like protrusion 24 returns to its original state due to its elasticity. As a result, as shown in Figure 5,
The stepped portion 12A of the protrusion 12 and the tip 24A of the plate-like protrusion 24 are in contact with each other, and the hook button body 13 is in contact with the hook button hole 2 of the housing 2.
5 so that it can be exposed from the bottom surface of the receiver receiver 25.

FIG. 3 shows a state in which the hook button 1 is attached to the housing 2 as described above.

After the hook button 1 is attached to the regulating device of the housing 2, the hook button 1 is moved inward toward the inside of the housing 2 (in the direction toward the inside of the housing 2) beyond that shown in FIG. 4) It will not roll (upper part of Figure F). That is, when the housing 2 is lifted up to be assembled into the base (the upper side shown in FIG. Since the housing 2 is regulated and is naturally maintained in a substantially horizontal orientation, the work of assembling the housing 2 into the base becomes extremely easy. Furthermore, since the hook button body 13 is fitted into the hook button hole 25, the hook button 1 is blocked by the side end surface 25A of the button hole 25. It does not move to the extent that it comes off the bearing 23. That is, the hook button 1 will not fall off from the housing 2.

Further, as shown by the dotted line in FIG. 3, if a columnar body 26 is provided in the housing 2 as a means for positioning the hook button 1 in the lateral direction (direction of the central axis of the rolling shaft 11), the lateral position of the hook button 1 in the drawing can be Since the leftward shift is restricted and the hook button body 13 can be placed in the center of the hook button hole 25, the side surface of the hook button body 13 does not come into contact with the side end surface 25A of the hook button hole 25 when the hook button 1 is operated. This is advantageous because even if a force to the extent that the hook button body 13 comes off from the hook button hole 25 is forcibly applied, the columnar body 26 prevents the hook button 1 from shifting in the lateral direction and prevents it from falling off. . In this case, the columnar body 26 is replaced with the side end surface 25A of the hook button hole 25.
serves as a means to prevent the hook button 1 from falling off in the lateral direction. Incidentally, the horizontal deviation of the hook button 1 in the right direction in the drawing is regulated by the contact of the side surface of the arm 14 of the hook button 1 with the bearing 23 of the housing 2 (see FIG. 4C).

As explained in detail above, according to the present invention, it is possible to obtain a mounting structure for the hook button that allows the hook button to be attached to the housing extremely easily and does not easily fall off after being attached, and the present invention has extremely significant effects. It is something to play.

[Brief explanation of the drawing]

The drawings are for explaining an embodiment of the present invention, and FIG. 1 is a perspective view of the hook button, FIG. 2 is a perspective view of the hook button attachment part of the housing, and FIG.
The figure is a perspective view showing a state in which the hook switch is attached to the housing, FIGS. 4A to 4F are views showing the hook button attaching operation in the order in which they are attached, and FIG. 5 is a sectional view of the main parts. Main symbols: 1... Hook button, 2... Housing, 11, 11A, 11B... Rolling shaft, 12...
... projection, 13 ... hook button body, 23 ... bearing, 24 ... plate-like projection, 25 ... hook button hole.

Claims (1)

[Scope of utility model registration request] In a telephone set in which a hook button is rotatably supported on a housing, a protrusion having a step structure with respect to the rolling axis is provided at or near the rolling axis of the hook button, and the housing has a plate surface thickness. A plate-like protrusion having elasticity in the direction is provided in a cantilever shape so that the tip of the protrusion is located inside a fan-shaped locus drawn by the tip of the protrusion as the hook button rolls, and the stepped portion of the protrusion The hook button is attached to the housing by forcibly rolling the hook button against the elasticity of the plate-shaped protrusion until it contacts the tip of the plate-shaped protrusion. A telephone hook button mounting structure in which the rolling angle of the hook button is regulated by the abutment of the tips.