JPH0634354U - Hook switch structure - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to prevent the hook knob from being accidentally touched and pushed while in a call or when the handset is placed on the ear. [Structure] Even when the hook knob 4 provided on the intercom main body 1 is in an off-hook state, at least the entire part of the hook knob 4 facing the handset 8 is projected from the opening 7 so that the hook knob 4 is not touched from the front of the intercom main body 1. It is surrounded by the ribs 7A. This prevents the hook knob 4 from being accidentally touched to push the hook knob 4 during a call or when the handset 8 is put on the ear. it can.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hook switch structure for switching between a call state and a standby state in a telephone or an intercom communication device, and more particularly to a hook switch structure in which a hook knob cannot be easily pressed with a finger or the like.

[0002]

[Prior art]

 Conventionally, there is a hook switch structure as shown in FIGS. 4 and 5 as this kind of hook switch structure. This hook switch structure is composed of an intercom main body 11 covered with an upper case 12 and a lower case 13 having slit-shaped openings 17, and a handset 18.

The switch portion of the switch 16 mounted on the printed circuit board 15 attached to the lower case 13 is recessed by the thickness of the upper case 12 and faces the slit-shaped opening 17 provided in the upper case 12. A guide 20 provided in the upper case 12 engages with a slidable hook knob 14. The handset 18 includes a narrow hook push knob 19 on the side in contact with the upper case 12.

As shown in FIG. 6, when the handset 18 is placed or hung on the upper case 12 as shown in FIG. 6, the switch portion of the switch 16 is operated by the hook push knob 19 pressing the hook knob 14. Pressed to go off-hook.

[0005]

[Problems to be solved by the device]

 However, in the conventional hook switch structure as described above, the handset 18 is lifted up to the ear or the like, and the hook knob 14 is erroneously pressed with a finger or the like when in a call state via the call circuit installed in the intercom main body 11. Then, the intercom main body 11 determines that it is the end of the call. At this time, when a call signal is sent from the intercom slave unit (not shown), the speaker of the handset 18 is based on the signal passed through the call signal generation circuit installed in the intercom main body 11 in the standby state. There was a drawback that the caller was surprised because a loud ringing sound (not shown) was emitted at the ear.

[0006]

【Purpose】

 The present invention has been made in order to solve such a conventional problem, and prevents a hook switch from accidentally touching the hook knob and pushing the hook knob during a call or when the handset is put on the ear. It is intended to provide a structure.

[0007]

[Means for Solving the Problems]

 The hook switch structure of the present invention that achieves such an object is a hook knob provided on the intercom main body, a hook knob push formed on the handset, and a slide formed on the intercom main body to press the hook knob with the hook knob push. In a hook switch structure including a hood-shaped opening, the opening has a rib surrounding at least the entire side of the hook knob facing the handset.

[0008]

[Action]

 Even when the hook knob provided on the intercom main body is in the off-hook state, at least the entire side of the hook knob facing the handset is surrounded by ribs protruding from the opening so that the hook knob cannot be easily touched from the front of the intercom main body. To do.

[0009] This prevents the hook knob from being accidentally touched to push the hook knob during a call or when the handset is put on the ear, and the hook knob can be pushed by pushing the hook knob formed on the handset only at the end of the call. .

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show an intercom having a hook switch structure according to the present invention. The intercom main body 1 is covered by an upper case 2 and a lower case 3 to which a printed circuit board 5 is attached. And a handset 8 having a speaker.

The printed circuit board 5 attached to the lower case 3 is equipped with a switch 6 for detecting the state of a call and a call end. To turn the switch 6 on and off, a hook knob 4 is provided as shown in FIG. 1 (b). The hook knob 4 is attached to the operating portion 6a of the switch 6, and one end thereof is inserted into the hole portion 5a formed on the printed board 5. As a result, by pressing the rotatable pressing portion 4b formed on the hook knob 4 around the contact point between the one end of the hook knob 4 and the hole 5a, that is, the pivot point 4a, the hook knob 4 causes a rotational movement. When the switch 6 is turned on and the pressing is released, the switch 6 can be turned off.

The upper case 2 is provided with a slit-shaped opening 7 for pressing the hook knob 4. Even when the hook knob 4 located in the opening 7 is in the off-hook state (calling state), the hook knob 4 is prevented from touching the hook knob 4 in the Z direction shown in FIG. 1A, that is, from the front of the upper case 2. At least the entire side opposite to the handset 8 is surrounded by a rib 7A protruding from the opening 7. A trapezoidal portion 2A that supports the handset 8 is formed on the upper case 2.

The handset 8 has a narrow hook knob push 9 on the side in contact with the upper case 2, and the handset 8 is placed or hung on the upper case 2. The hook knob push 9 is for turning on and off the hook knob 4 described above. As the hook knob push 9 pushes or releases the push portion 4b of the hook knob 4, the hook 6 pushes the switch 6 around the pivot point 4a. The operation unit 6a is operated. That is, if the handset 8 is picked up, the hook knob push 9 releases the pressing portion 4b of the hook knob 4, and the switch 6 is turned off around the pivot point 4a to put the handset 8 in the off-hook state. The push 9 pushes the pressing portion 4b of the hook knob 4, and the switch 6 can be turned on with the pivot point 4a as the center to bring the switch into an on-hook state (end-call state).

Further, the hook knob pusher 9 also serves as a wall-hanging hook portion that does not drop the handset 8 even if it is installed vertically on a wall or the like as shown in FIG. The operation of the intercom using the hook switch structure of the present invention configured as described above will be described below. When making a call, when the handset 8 is called up from the entrance cordless handset and the handset 8 is picked up from the upper case 2, the pressing portion 4b of the hook knob 4 is disengaged from the hook knob pressing member 9 as shown in FIG. As a result, the hook knob 4 rotates around the pivot point 4a, and the switch 6 is put into the off-hook state, so that the handset 8 can talk.

On the contrary, by placing or hanging the handset 8 on the upper case 2, the hook knob push 9 is pushed from the opening 7 provided in the upper case 2 to the pressing portion of the hook knob 4 as shown in FIG. 1B. By pressing 4b, the hook knob 4 rotates about the pivot point 4a, and the switch 6 is brought into the on-hook state, so that the handset 8 is terminated.

In these cases, the hook knob 4 is supported by the hole 5a formed on the printed circuit board 5 and is rotated around the pivot point 4a by engaging or disengaging the hook knob push 9 so that the handset 8 is not moved. The switch 6 is surely turned on and off by rotating the hook knob 4 about the pivot point 4a according to picking up from the upper case 2 or placing or hanging the handset 8 on the upper case 2.

In the present embodiment, the hook knob 4 is rotated about the pivot point 4a to bring the switch 6 into the on-hook state and the off-hook state, but the operation of the hook knob 4 is not limited to the rotational movement. The same effect can be obtained even by linear movement. Further, the switch 6 may be directly turned on / off by pressing the hook knob 9.

[0018]

[Effect of device]

 As is apparent from the above-described embodiments, the hook switch structure according to the present invention allows the hook knob to be touched from the front of the intercom body even when the hook knob located inside the opening provided in the interphone body is in the off-hook state. To prevent it from happening, at least the entire side of the hook knob facing the handset is surrounded by a rib protruding from the opening.As in the conventional method, you can accidentally touch the hook knob during a call and press it to disconnect the call. If the handset speaker produces a ringing tone, or if you accidentally press the hook knob with your handset on your ear, you may be surprised to hear a loud sound from the handset speaker. Is gone. This ensures that the hook knob can be pressed only when ending the call.

[Brief description of drawings]

1A and 1B are views showing an embodiment of a hook switch structure of the present invention, in which FIG. 1A is a sectional view in a call state, and FIG. 1B is a partial sectional view.

2A and 2B are views showing an embodiment of a hook switch structure of the present invention, in which FIG. 2A is a front view and FIG. 2B is a top view.

FIG. 3 is a cross-sectional view of the hook switch structure of the present invention in an end state.

FIG. 4 is a cross-sectional view of a conventional hook switch structure in a call state.

FIG. 5 is a front view showing a conventional hook switch structure.

FIG. 6 is a cross-sectional view of a conventional hook switch structure in a call end state.

[Explanation of symbols]

 1 ... Intercom main body 2 ... Upper case 3 ... Lower case 4 ... Hook knob 4a ... Pivot point (hook knob) 4b ... Pressing part (hook knob) 5 ... Printed circuit board 5a ... Hole part 6 ... Switch 6a ... Operating part 7 ... Opening part 7A … Rib 8… Handset 9… Push hook knob

Claims (1)

[Scope of utility model registration request] 1. A hook comprising a hook knob provided on an intercom main body, a hook knob push formed on a handset, and a slit-shaped opening formed on the intercom main body for pressing the hook knob with the hook knob push. In the switch structure, the opening is provided with a rib that surrounds at least the entire side of the hook knob facing the handset.