JPH056579U - Switch structure with locking function - Google Patents

Abstract

(57) [Summary] [Object] The present invention switches between two modes by pressing and moving one button to improve operability and reduce cost. [Structure] A spring having a base end fixed to a case and a distal end movably formed and an action portion provided at the center, a tact switch pressed by the action portion of the spring, a pressing direction and a tip end with respect to the spring. A button that is provided so as to be movable in the direction and that has a pressing portion that presses the spring in the central portion,
And a guide portion for guiding and locking the button in the pressing direction of the tact switch when the button is moved to the tip side of the spring. The button is configured so that it can move in two directions, the pressing direction and the tip of the spring, and when it moves in the tip, it locks and fixes the tact switch in the ON state, so there are two modes, PTT and PTT Lock. The buttons can be switched to improve operability, and other switches are not required, which reduces costs.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention particularly relates to a switch structure having a lock function used as a push-to-talk (PTT) of a switch box such as a headset with a voice operated switching (VOX) function for a handy transceiver.

[0002]

[Prior Art]

 FIG. 5 shows a conventional example of a switch box of a headset with a VOX function for a handy transceiver. A PTT button 2 that is pressed at the time of transmission is provided on the upper surface of the case 1, and a side surface is used to switch between the PTT state and the VOX state. The slide switch 3 and a slide switch 6 for PTT Rock, which enables continuous transmission without pressing two PTT buttons in the PTT state, are provided. On the other side, connectors 4 and 5 are provided for connecting to a headset or a radio (not shown). During transmission, the PTT button 2 is pressed to press a tact switch (not shown) provided inside the case 1 to turn it on, thereby switching the circuit to the transmission state. Further, when the transmission state is continued, the side switch 6 is switched to the Lock side to fix the circuit in the transmission state.

However, in the switch box of the conventional headset described above, in order to fix the transmission state, the slide switch 6 provided separately must be operated. Since it is provided at a position different from that described above, the position of the slide switch 6 must be visually confirmed when operating, which causes a problem that the operation becomes complicated. Further, since the slide switch 6 is used, there is a problem that the cost is inevitably increased.

[0004]

[Problems to be solved by the invention] The problem to be solved is that the operation is complicated because the transmission state is fixed by operating the slide switch provided separately, and the cost is increased because the slide switch is used. Is to become.

[0005]

[Means for Solving the Problems]

 According to the present invention, a spring having a base end fixed to a case and a distal end side movably formed and a working portion provided at the center, a tact switch pressed by an acting portion of the spring, and a pressing member against the vane are provided. Direction and tip direction, and a button having a pressing portion for pressing the spring in the center, and a button that guides in the pressing direction of the tact switch when the button is moved to the tip side of the spring. It has a lockable guide part, so that it can be switched between two modes by pressing and moving one button, improving the operability and reducing the cost with a simple configuration. ..

[0006]

[Action]

 When the button is pressed and urged, the tact switch is moved through the spring action part with the position of the push part of the button fixed to the case and the action part of the spring movably formed on the tip side. Press and release the pressure to return. Also, when the button is moved to the tip side of the spring, the button is guided by the guide part and is displaced to the tact switch side, and the pressing part of the button presses the tip side of the spring to keep the tact switch pressed. When the button is locked and the button is returned to the base end side of the spring, the locked state by the guide is released. In this way, the button is configured to be movable in both the pressing direction and the tip direction of the spring, and when it moves in the tip direction, it is locked and the tact switch is fixed in the ON state. Can be switched with a single button operation, improving operability and reducing costs by eliminating the need for other switches.

[0007]

【Example】

 Hereinafter, the configuration of the present invention will be described in detail based on the embodiments shown in the drawings. 1 and 2 show an embodiment of a switch structure with a lock function according to the present invention, in which a case 10 made of synthetic resin fits the openings of a front case 10a and a rear case 10b. A storage hole 12 for mounting a PTT button 11, which will be described later, is formed on the surface of the front case 10a. Further, on the back surface of the front case 10a, a spring 13 is integrally extended from one side of the accommodation hole 12 toward the accommodation hole, and the tip side is formed to be vertically movable. The spring 13 has a U-shaped portion 13a formed on the base end side to adjust the elastic force. A hemispherical action portion 13b is formed on the back surface in the central portion in the front end direction from the U-shaped portion 13a, and the tact switch 14 arranged below is pressed by the action portion 13b. Further, a convex portion 13c that abuts on the back surface of the PTT button 11 and prevents rattling is integrally formed at the tip of the tip. In addition, guide portions 15 for guiding the movement and locked state of the PTT button 11 are integrally formed on the two sides of the storage hole 12 parallel to the spring 13. The guide portion 15 has a first guide portion 15a formed on the proximal end side of the spring 13 and a second guide portion 15b formed on the distal end side of the spring 13, and the first guide portion extends from the center to the distal end side. A flat surface is formed through a downwardly inclined surface 15c, and the second guide portion 15b is formed with a locking surface 15d that extends downward with a step at the tip end side.

On the other hand, the PTT button 11 has a flat surface, a pressing portion 11a for pressing the spring 13 is formed in the central portion of the back surface, and the spring 13 moves to the left and right on both sides thereof. Ribs 11b for preventing the above are formed respectively. Further, four claw portions 11c are formed in the vicinity of both sides of the PTT button 11, and the claw portions 11c engage with the first and second guide portions 15a and 15b of the guide portion 15, respectively. , It is in the retaining state. A support portion 10c is formed on the inner surface of the rear case 10b so as to support the substrate 16. On this board 16, a tact switch 14 is arranged at a position corresponding to the acting portion 13b of the spring 13.

In the switch structure with a lock function having such a configuration, when the PTT button 11 is pressed to transmit, the PTT button 11 is positioned on the left side as shown in FIG. When the pressing portion 11b of the PTT button 11 and the operating portion 13b of the spring 13 are aligned with each other, the operating portion 13b presses the tact switch 14 to switch the circuit (not shown) to the transmitting state. When the PTT button 11 is released, the spring 13 restores the elasticity and the transmission state is stopped.

Next, when the PTT button 11 is moved to the tip side of the spring 13 while being pressed as described above, the claw portion 11c of the PTT button 11 moves to a flat surface via the inclined surface 15c of the guide portion 15. At the same time, it moves to the lock surface 15d, and the PTT button 11 is prevented from returning to the locked state. At this time, the pressing portion 11a of the PTT button 11 moves to the tip side of the spring 13 as shown in FIG. 4, and the tact switch 14 is locked in the pressed state by the elasticity of the spring 13, and the transmission state is maintained. When the PTT button 11 is moved to the base end side of the spring 13 and returned, the locked state by the guide portion 15 is released and the transmission state is stopped.

In the locked state as described above, the pressing stroke of the tact switch 14 is normally about 0.25 mm and the stroke of the PTT button 11 is about 0.8 mm, but the pressing portion 11a of the PTT button 11 is a spring. Since the stroke of the action portion 13b of the spring 13 is reduced by moving to the tip end side of the spring 13, the tact switch 14 is pressed with an appropriate pressure, so there is no problem with overstroke.

The present invention is not limited to the above-mentioned embodiments, but is applicable not only to the PTT button but also to a general-purpose button, and the spring may be separately provided even if it is not integrated with the case. It may be fixed, and the shapes of the button, the spring, the guide portion and the like can be variously modified without departing from the scope of the present invention.

[0013]

[Effect of the device]

 As is clear from the above description, the switch structure with a lock function of the present invention is configured so that the button can be moved in two directions, the pressing direction and the tip direction of the spring, and is locked when the button is moved in the tip direction. Since the tact switch is fixed to the ON state, the two modes of PTT and PT T Rock can be switched by one button operation, and visual operation is not required, and operability can be significantly improved. Further, since only one switch is required, there is an advantage that the cost can be reduced and the space can be reduced to be small.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a lock function switch structure of the present invention.

FIG. 2 is a cross-sectional view showing the switch structure with a lock function.

FIG. 3 is a cross-sectional view showing a pressed state in the switch structure with a lock function.

FIG. 4 is a cross-sectional view showing a locked state in the switch structure with a lock function.

FIG. 5 is a perspective view showing a conventional example.

[Explanation of symbols]

 10 Case 11 Button 11a Pressing Part 12 Storage Hole 13 Spring 13b Working Part 14 Tact Switch 15 Guide Part 15c Inclined Surface 15d Locked Surface

Claims (1)

[Claims for utility model registration] [Claim 1] A spring having a base end fixed to a case and a distal end movably formed and an action portion provided in the center, and a tact switch pressed by the action portion of the spring. A button provided movably in the pressing direction and the tip direction with respect to the spring and having a pressing portion for pressing the spring in the center, and the tact switch of the tact switch when the button is moved to the tip side of the spring. A guide portion that guides and locks in the pressing direction, and when the button is pressed and biased, the pressing portion and the action portion of the spring are aligned and displaced to the tact switch side, A switch structure with a lock function, characterized in that, when the button is moved, the pressing portion is displaced in the distal end side direction of the spring to lock the tact switch in the pressed state.