JP4034158B2 - Hook button device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hook button device that switches between a call waiting state and a call ready state in conjunction with an attaching / detaching operation of a handset (handset).
[0002]
[Prior art]
Normally, a telephone is provided with a hook button device so that when a handset provided on the telephone is lifted, the telephone is automatically switched from a call waiting state to a telephone call ready state.
[0003]
As this hook button device, a rotation type device is known in which the hook button is configured to rotate about a support shaft in conjunction with the attaching / detaching operation of the handset (see, for example, Patent Document 1). This rotary hook button device is configured such that an arm-shaped arm member is provided on the hook button, and a support shaft is attached to a part of the arm member so as to rotate about the support shaft. Since the arm member is long, a certain amount of space is required.
[0004]
Therefore, a linear motion type hook button device in which the hook button moves up and down in the main body of the telephone in conjunction with the attaching / detaching operation of the handset has been developed. Since this linear movement type hook button device can be configured in a space-saving manner than the rotary type, it is convenient in that respect, but a relatively large operating force is required for the on / off switching operation of the hook button device. .
[0005]
In view of this, for example, in order to reduce the operating load by partially using the principle of the lever, there is also known a configuration in which a lever whose tip is engaged / contacted with the hook button is provided (for example, see Patent Document 2). .) In the hook button device having such a configuration, the lever is tilted by the pressing operation of the hook button, and the hook switch is turned on / off by the tilting operation of the lever.
[0006]
[Patent Document 1]
Japanese Utility Model Publication No. 63-83846 (see FIG. 3)
[0007]
[Patent Document 2]
JP 63-278449 A (see FIG. 1)
[0008]
[Problems to be solved by the invention]
However, the hook button device having such a configuration has a problem that when the hook button is strongly pressed, the tip of the lever of the hook switch may fall off from the hook button and may not return.
[0009]
The present invention has been made to solve such a problem, and an object of the present invention is to provide a hook button device that can withstand strong pressing, can be operated with a light operating force, and can save space. To do.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, the hook button device of the present invention is a hook button device that switches between a call waiting state and a call state in conjunction with an attaching / detaching operation of a handset detachably provided on a main body,
A guide tube provided on the main body;
A hook button that includes a flange that engages with the lower end of the guide tube and has an inclined surface at the lower end, and moves up and down along the guide tube;
A lever that has an inclined surface to which the lower end portion of the hook button is engaged, and is tilted by a pressing operation of the hook button;
The lever includes a hook switch that switches between the call waiting state and the call state by tilting the lever.
[0011]
According to this configuration, the lower end portion (actuating portion) of the inclined surface of the hook button is formed so as to abut on the vicinity of the tip of the lever attached to the hook switch, thereby corresponding to the moment arm in the lever. A long part can be secured, and the operating force (load) required for pressing the hook button can be reduced accordingly.
[0012]
In addition, even if the lower end (actuation part) of the hook button falls off from the tip of the hook switch lever when the hook button is pressed hard, the hook button is brought into contact with the inclined surface of the hook switch. It is possible to avoid complete disconnection from the hook switch.
[0013]
In the hook button device of the present invention, the inclination angle of the inclined surface of the hook button that contacts the lever of the hook switch with respect to the horizontal direction is the horizontal direction of the inclined surface of the lever at the lowest descending position of the hook button. The inclination angle is larger than the inclination angle.
[0014]
According to this configuration, in the normal operating range of the hook button, the inclined surface of the hook button does not come into surface contact with the inclined surface of the lever of the hook switch, and only the tip of the inclined surface of the hook button is inclined of the lever of the hook switch. Since it makes point contact with the surface, a portion corresponding to the arm of the lever moment can be secured long, and a low load can be realized until the final operation of the hook button stroke.
[0015]
In the hook button device of the present invention, the flange abuts against the top surface of the housing of the hook switch when the hook button is lowered beyond the lowest position by the attaching / detaching operation of the handset , The hook button is provided at a predetermined position so as to come into contact with the lower end surface of the guide tube of the main body at the highest position.
[0016]
According to this configuration, even if each component is bent when the hook button is pressed excessively, the hook button descends by the flange provided on the hook button contacting the top surface of the hook switch housing. Can stop at a fixed position, so that the hook button can be prevented from falling off the lever of the hook switch.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
[0018]
1 and 2 show a configuration of a hook button device 1 according to an embodiment of the present invention. The hook button device 1 is roughly configured by a hook button 2, a hook switch 4, and a lever 41. And.
[0019]
The hook button 2 is attached to the guide tube 11 provided in the concave portion 10A of the main body 10 in which the handset 5 shown in FIG. 2 is accommodated, and is pushed out to the protruding portion 5A provided with the transmitter (or receiver) of the handset 5. By this, it is comprised so that it may move straightly in a back part (down) direction along the inner peripheral surface of the guide cylinder 11. As shown in FIG.
[0020]
The hook button 2 is provided with a projection 22 via a flange 21 at the lower end of a substantially cylindrical main body portion, and the flange 21 is locked to the end of the guide tube 11. The protrusion 22 protrudes from the guide tube 11 and comes into contact with and locks a lever 41 described later.
[0021]
When the handset 5 is in the escaped state (during a telephone call) in which the handset 5 is lifted from the recess 10A of the main body 10, the flange 21 is pushed up by the return operation of the lever 41 by a return spring described later. The upper position is regulated by abutting against the lower end surface 11A of the guide tube 11, and for example, the state shown in FIG.
[0022]
On the other hand, the projecting portion 22 is formed with an inclined surface 23, and only the operating portion 23 </ b> A that is the lowermost end portion of the inclined surface 23 is locked to the lever 41 in the state where the hook button 2 shown in FIG. It is formed in such a state.
[0023]
The operating portion 23A on the hook button 2 side comes into contact with the vicinity of the tip end portion of the lever 41 of the hook switch 4 (follower portion 42A to be described later), and the length of the arm of the lever 41 due to the moment of the lever. As shown in FIG. 2, the hook switch 4 can be reliably switched even with a light operating force.
[0024]
In the state shown in FIG. 2, the inclined surface 23 of the protrusion 22 is formed at an angle α (a slight acute angle) α that is larger than the inclination angle β of the upper surface of the lever 41 of the hook switch 4, so that it contacts the upper surface of the lever 41. Absent.
[0025]
The hook switch 4 is mounted on the printed circuit board 3 inside the main body 10 and is turned on / off by a tilting operation of a lever 41 attached thereto.
[0026]
The lever 41 is provided with a return spring (not shown), and a rotating force that rises upward is acting. Therefore, when the pressing force of the hook button 2 is not acting, the lever 41 maintains the state shown in FIG. ing.
[0027]
Further, the lever 41 has an inclined surface 42 on the upper surface, and the tip of the inclined surface 42 forms a driven portion 42A. When the handset 5 is housed in the main body 10, the weight of the handset 5 is reduced. When the protrusion 22 of the hook button 2 is pressed, the driven portion 42A is also pressed and tilted, and the hook switch 4 is turned off.
[0028]
As described above, the angle α with respect to the horizontal direction of the inclined surface 23 of the hook button 2 that contacts the lever 41 of the hook switch 4 indicates that the lever 41 is inclined at the lowest position of the hook button 2 shown in FIG. The surface 42 is formed and arranged so as to be larger than the inclination angle β with respect to the horizontal direction.
[0029]
Next, the operation of the hook button device 1 according to this embodiment will be described.
[0030]
(1) For call operation (Fig. 1):
When the handset 5 is lifted, the pressing force of the handset 5 does not act, so the hook button 2 is pushed up to the state shown in FIG. 1 by a return spring (not shown) attached to the lever 41. Then, the hook switch 4 is turned on by the upward (clockwise) turning operation of the lever 41, and a call-ready state is set.
[0031]
(2) For non-calling operation (Fig. 2):
When the handset 5 is returned to a predetermined position of the main body 10 after the call is finished, for example, the transmitter (or the receiver) is accommodated in the recess 10A of the main body 10, so that the gravity of the main body 10 acts on the hook button 2.
[0032]
That is, a pressing force is generated by the handset 5, and this acts on the driven portion 42 </ b> A that is the tip portion of the lever 41 via the protruding portion 22 of the hook button 2. As a result, as shown in FIG. 2, the lever 41 is tilted downward, so that the hook switch 4 is turned off and a call-disabled state is set.
[0033]
(3) When the hook button 2 is pressed hard (FIG. 3):
When the hook button 2 is pushed strongly beyond the operating range during normal operation, the inclined surface of the lever 41 of the operating portion 23A hook switch 4 which is the tip of the protruding portion 22 of the hook button 2 as shown in FIG. (Upper surface) 42 is in a state of being separated / dropped off.
[0034]
However, the inclined surface 23, which is the lower surface of the protruding portion 22, is in contact with the inclined surface (upper surface) 42 of the lever 41 of the hook switch 4. For this reason, the trouble that the protrusion part 22 of the hook button 2 completely falls off from the lever 41 of the hook switch 4 and does not return is not caused.
[0035]
(4) When the hook button 2 is pressed excessively (FIG. 4):
When the hook button 2 is strongly pressed with an excessive pressing force exceeding the strong pressing operation, as shown in FIG. 4, the hook button 2 is further lowered and each component including the printed board 3 is bent. Then, the upper end portion 23B of the inclined surface 23 of the hook button 2 moves to the lower left while sliding on the inclined surface (upper surface) 42 of the lever 41.
[0036]
Then, when the peripheral edge portion 21A on the lower surface side of the flange 21 provided on the hook button 2 is in contact with the top surface 4A of the hook switch 4, the lowering operation of the hook button 2 is prevented, so in this state as it is. Quiesce.
[0037]
Therefore, the flange 21 acts as a stopper and reliably prevents the hook button 2 lever 41 from dropping and not returning.
[0038]
【The invention's effect】
As described above, the hook button device of the present invention includes a guide tube of the main body and a flange that is engaged with the lower end portion of the guide tube, and has an inclined surface at the lower end portion, and moves up and down along the guide tube. And a lever that has an inclined surface that engages the lower end of the hook button, and a hook switch that switches between a call waiting state and a call state by the tilting operation of the lever, and is close to the end of the inclined surface of the hook button. By pressing the lever closer to the end of the upper surface, the length corresponding to the arm of the moment can be secured to the maximum using the principle of the lever, so the hook switch can be operated reliably with a light operating force. Can be made.
[0039]
Moreover, in the present invention, the hook switch is turned on using the end of the inclined surface of the hook button, so that the lowering operation of the hook button is ensured as a stroke operation for as long as possible. Since it can be used for the on-operation, it can be operated with a small operating force, and a large and reliable switch operation can be obtained even in a space with upper and lower limits, so that the space for the hook button device can be saved.
[0040]
In addition, according to the present invention, the flange acts as a stopper and prevents the hook button from descending beyond a certain stroke even when the button is operated by excessively strong pressing. The effect that a hook button device that can withstand the above can be realized is also obtained.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state when a hook button is at its highest point in a hook button device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a state when the hook button has been lowered within a normal operation range in the hook button device according to the embodiment of the present invention.
FIG. 3 is a cross-sectional view showing a state in which the hook button is strongly pressed and the inclined surface of the hook button is in contact with the lever of the hook switch in the hook button device according to the embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a state in which the hook button is excessively pressed and the flange of the hook button is in contact with the top surface of the hook switch in the hook button device according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hook button apparatus 10 Main body 10A Recess 11 Guide cylinder 11A Lower end part 2 Hook button 21 Flange 21A (Lower surface side) Peripheral part 22 Projection part 23 Inclined surface 23A (Hook button) operation part 3 Printed circuit board 4 Hook switch 4A Top surface 41 Lever 42 Inclined surface 42A (Lever) driven part 5 Handset 5A Protruding part (sending part or receiving part)

Claims (3)

A hook button device that switches between a call waiting state and a call state in conjunction with an attachment / detachment operation of a handset provided detachably on the main body,
A guide tube provided on the main body;
A hook button that includes a flange that engages with the lower end of the guide tube and has an inclined surface at the lower end, and moves up and down along the guide tube;
A lever that has an inclined surface to which the lower end portion of the hook button is engaged, and is tilted by a pressing operation of the hook button;
A hook button device comprising: a hook switch that switches between the call waiting state and the call state by tilting the lever.   The inclination angle of the inclined surface of the hook button that contacts the lever of the hook switch with respect to the horizontal direction is larger than the inclination angle of the inclined surface of the lever with respect to the horizontal direction at the lowest position of the hook button. The hook button device according to claim 1. The flange abuts against the top surface of the housing of the hook switch when the hook button is lowered beyond the lowest position due to the attachment / detachment operation of the handset , and the flange of the main body when the hook button is at the highest position. The hook button device according to claim 1 or 2, wherein the hook button device is provided at a predetermined position of the hook button so as to come into contact with a lower end surface of the guide tube.

Images