JP5547671B2 - Push button device for telephone equipment - Google Patents

Description

  The present invention relates to a push button device used for a telephone equipment such as an interphone and a telephone, and more particularly to a push button device assembled inside a case and exposing a push button portion from a case opening.

  2. Description of the Related Art Conventionally, a push button having a relatively large operation surface is used for a communication device such as an interphone or a telephone to turn on / off an internal switch by performing a push operation. A conventional push button device provided with such a push button has a pair of strips projecting from an operating portion to be pushed in, and a shaft portion is provided on the tip of the strip to the left and right outside, while the device case is It is configured with a bearing that can support the shaft part, and the operation part rotates around the shaft part by pushing operation, and the switch provided on the back part of the operation part is turned on / off. It was.

In addition, when the shaft portion is pivotally supported by the bearing, a pair of wall portions are provided in a projecting manner in the left and right directions with a predetermined interval therebetween to form a shaft hole in the wall portion. After inserting or engaging one of the shaft portions into the shaft hole, the other shaft portion was inserted or engaged into the shaft hole by bending a strip or wall (for example, Patent Document 1). .
And with such a structure, the wall part which formed the bearing prevented the play in the left-right direction which is an axial direction of a push button, and aimed at favorable push-in of the push button.

JP 2005-228590 A

However, in the conventional push button device, when the shaft portion is inserted or engaged with the shaft hole as described above, the strip or the wall portion must be bent. Therefore, there is a risk that the strip or wall will be damaged when bent, and if the strip or wall must be bent one by one while paying attention to such damage, the installation work is very troublesome. There is a problem.
In addition, the pressing force when operating the push button is determined by the elastic force of the elastic piece provided integrally with the push button. However, when the pressing force is to be adjusted, the length or shape of the elastic piece is determined. It was necessary to change the elastic force to change the design, and a big design change was necessary.

  Therefore, the present invention has been made in view of the above-described problems, and there is no concern that damage or the like will occur when a push button is attached, the attachment work is easy, and a large design change is required for changing the pressing force. The present invention intends to provide a push button device for telephone equipment that does not.

In order to achieve the above object, the invention described in claim 1 of the present invention is based on the operation of pushing the back of the push button provided on the front case constituting the front surface of the telephone equipment case. A push button device for a telephone device that internally turns on / off a switch disposed behind the push button, wherein the push button is exposed to the front surface of the telephone device case and extends vertically from the operation unit. A fixing part for fixing the push button to the rear surface of the front case is provided at the tip of the band, while a desired position between the operation part and the fixing part of the band is used as a fulcrum. A fulcrum rib is projected in the front-rear direction, or a fulcrum rib is projected from the rear surface of the front case or a circuit board having a switch toward the fulcrum, and the fulcrum is provided with the rear surface of the front case and the switch via the fulcrum rib. circuit Rutotomoni provided push button in a state sandwiched by the front plate, a push button, provided adjacent to the speaker for a call, the strip, with the securing the push button to the front case, a rear surface of the speaker A pressing piece that contacts and supports the speaker in an installed state is provided .
According to this configuration, the push button includes the operation unit exposed on the front surface of the telephone equipment case and the strip extending in the vertical direction from the operation unit, and the push button is fixed to the rear surface of the front case at the tip of the strip. From the circuit board having the rear surface of the front case or a switch, with a desired position between the operating portion of the strip and the fixed portion as a fulcrum, and a fulcrum rib projecting in the front-rear direction from the fulcrum A fulcrum rib is projected toward the fulcrum, and a push button is provided with the fulcrum sandwiched between the rear surface of the front case and the front surface of the circuit board having a switch via the fulcrum rib, so the push button is pushed in. For example, it is not necessary to bend the strip, and it is not necessary to worry about breakage of the push button. Therefore, it is possible to very easily carry out the push button attaching operation, and thus the telephone device assembling operation. In addition, the position as the fulcrum in the strip is changed between the operating portion and the fixed portion of the strip, that is, only by changing which position of the strip is sandwiched between the rear surface of the front case and the circuit board. The pressing force at the time of operating the push button can be adjusted, and the design change is not required to be as great as the conventional one for adjusting the pressing force.
Further, as the push button is fixed to the front case, the pressing piece comes into contact with the rear surface of the speaker and the speaker is supported in the installed state. Therefore, a dedicated member for supporting the speaker in the installed state (for example, a screw hole) It is not necessary to provide a screw-fastening part) having a simple structure, the configuration can be rationalized, the installation work of the speaker can be facilitated, and the telephone equipment can be assembled more easily.

According to a second aspect of the present invention, there is provided the push button according to the first aspect of the present invention, wherein the fulcrum rib protrudes backward from the fulcrum of the strip and the tip of the fulcrum rib is in contact with the front surface of the circuit board. Is provided.
According to this configuration, since the fulcrum rib protrudes backward from the fulcrum of the strip, and the push button is provided with the tip of the fulcrum rib in contact with the front surface of the circuit board, the push button is pushed backward. When operated, the tip of the fulcrum rib is pressed against the front surface of the circuit board and is not easily displaced, so that the fulcrum easily acts as a fulcrum, and the operation of the push button during the pushing operation can be stabilized.

The invention according to claim 3 is the position of the invention according to claim 2, in which the fulcrum rib of the strip is provided from the rear surface of the front case toward the front side of the position where the fulcrum rib of the strip is provided. A support rib is provided so as to project from the front side to the front case, and a push button is provided with the tip of the support rib in contact with the front surface of the strip or the rear surface of the front case. .
According to this configuration, the strip can be easily bent with the contact position of the support rib, that is, the projecting position of the fulcrum rib, as a fulcrum during the pushing operation, and the operation of the push button during the pushing operation can be further stabilized.

According to the present invention, when the push button is provided so that it can be pushed in, for example, it is not necessary to bend the strip and there is no need to worry about damage to the push button. Assembly work can be performed very easily. In addition, it is possible to adjust the pressing force when operating the push button simply by changing the fulcrum position of the strip between the operating part and the fixed part of the strip. And not. Further, as the push button is fixed to the front case, the pressing piece comes into contact with the rear surface of the speaker and the speaker is supported in the installed state, so there is no need to provide a dedicated member for supporting the speaker in the installed state. The configuration can be rationalized, the speaker can be easily installed, and the telephone equipment can be assembled more easily.

It is explanatory drawing which showed the front door side device of the intercom from the front side. It is explanatory drawing which showed the front case in the state which attached the push button and the speaker from back. It is explanatory drawing which showed the up-down direction cross section in the protrusion position of the fulcrum rib of the front case in the state which attached the push button and the circuit board. It is explanatory drawing which showed the decomposition | disassembly state. It is explanatory drawing which showed the push button from the front.

  Hereinafter, a push button device of a telephone device according to an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an explanatory diagram showing an intercom entrance device 1 which is an example of a telephone device from the front side.
The front door 1 has a main body case composed of a front case 2 disposed on the front side and a rear case (not shown) disposed on the rear side. A microphone 4 for calling and a camera unit 5 for photographing visitors are installed. In addition, a speaker 6 for calling is installed at a substantially central portion in the main body case, and a push button 7 is provided below the speaker 6 so as to be able to be pressed. Such an entrance cordless handset 1 is installed on the wall surface of the entrance of a dwelling unit, and when a push button 7 is pushed in by a visitor, a room base unit (not shown) is called and a camera unit 5 is operated. Shoot visitors. Thereafter, when a response operation is performed in the room master unit, a call can be made with the room master unit.

  Here, the push button device as the main part of the present invention will be described with reference to FIGS. FIG. 2 is an explanatory diagram showing the front case 2 in a state where the push button 7 and the speaker 6 are attached from the rear. FIG. 3 is an explanatory view showing a vertical section at the projecting position of the support rib 18 of the front case 2 in a state where the push button 7 and the circuit board 9 are attached. FIG. 4 is an explanatory view showing an exploded state (the speaker 6 is not shown). FIG. 5 is an explanatory view showing the push button 7 from the front.

  The push button device includes a push button 7, a mounting mechanism for the push button 7, and a circuit board 9 including a switch 8 that is turned on / off according to the operation of the push button 7. The push button 7 is a member made of synthetic resin, and is exposed to the outside of the main body case from the opening 10 opened in the front case 2 and is pushed upward from the upper edge of the operation unit 11 by a visitor. A pair of strips 12, 12 projecting from each other, a fulcrum rib 13 provided on each strip 12, and a pressing piece 14 installed between the tips of the strips 12, 12. The operation unit 11 is formed in a box shape with an open rear surface, and a flange portion 11a is integrally formed on the periphery of the rear surface opening. And the strips 12 and 12 are protrudingly provided integrally with the collar part 11a from the left-right both ends of the upper edge of the collar part 11a upward. A screw hole 15 is formed at the tip of each strip 12, and a screwing portion for screwing the push button 7 to the rear surface of the front case 2 is provided. Further, a fulcrum rib 13 protrudes rearward and integrally with the strip 12 at a position between the operation portion 11 (the flange portion 11a) of each strip 12 and the screw hole 15. Further, a band-shaped pressing piece 14 is integrally built with the band pieces 12 and 12 so as to connect the screw holes 15 of the band piece 12, and a front surface at a substantially central position of the pressing piece 14 will be described later. A shock-absorbing member 16 that abuts against the rear surface of the speaker 6 is attached.

  On the other hand, the mounting mechanism of the push button 7 is provided in the front case 2 and is opened at the lower part of the front case 2, and the opening 10 for exposing the operation unit 11 and the push button 7 are screwed as described above. Screwing portions 17 and 17 for supporting the support, and support ribs 18 and 18 for supporting the strips 12 and 12 of the push button 7 in particular from the front side. Each screwing portion 17 is formed as a columnar body with a screw hole formed at the tip, and is positioned above the opening 10 on the rear surface of the front case 2 (that is, the operation portion 11 is positioned in the opening 10). When this is done, it projects integrally with the front case 2 backward from a position corresponding to the screw hole 15 of the push button 7. Each support rib 18 protrudes rearward from a position between the opening 10 and each screwing portion 17 on the rear surface of the front case 2, and is also provided integrally with the front case 2. When the screws are screwed, the tip surfaces of the support ribs 18 come into contact with the front side of the fulcrum ribs 13. Furthermore, a speaker installation portion 19 for installing the circular speaker 6 is provided between the screwing portions 17 and 17.

  The circuit board 9 can be fixed behind the push button 7 and has a size that can cover substantially the entire push button 7. A switch 8 is provided on the front surface of the circuit board 9 at a position behind the operation unit 11 and each fulcrum rib 13 can be fitted. When the push button 7 is screwed, each fulcrum rib 13 is fitted. Is provided with a recess 20 in which the front end surface of the can contact the bottom surface (back surface).

  In the push button device 1, the speaker 6 is installed in the speaker installation unit 19, and then the push button 7 is screwed to the screw fastening units 17 and 17 with the operation unit 11 positioned in the opening 10. 7 is assembled by fixing the circuit board 9 to the rear side. In this assembled state, the push button 7 is in a state where the tips of the fulcrum ribs 13 and 13 are in contact with the front surface of the circuit board 9 and the tips of the support ribs 18 and 18 are in contact with the front surface side of the fulcrum ribs 13 and 13. Thus, the rear surface of the front case 2 and the circuit board 9 are sandwiched from the front and rear. Therefore, when the operation unit 11 is pushed in, the tips of the fulcrum ribs 13 and 13 are pressed against the circuit board 9, and the strips 12 and 12 are bent backward with the projecting position of the fulcrum ribs 13 and 13 as a fulcrum. This turns on / off the switch 8. Further, in a state where the push button 7 is screwed, the buffer member 16 of the pressing piece 14 is in contact with the substantially central portion of the rear surface of the speaker 6 and supports the speaker 6 from the rear.

  According to the push button device 1 having the above-described configuration, the push button 7 is fixed to the rear surface of the front case 2 by screwing, and at the position between the operation portion 11 and the screw hole 15 in the push button 7. The fulcrum ribs 13 and 13 are provided, and the fulcrum ribs 13 and 13 are sandwiched from the front and rear by the rear surface of the front case 2 and the circuit board 9, whereby the push button 7 is pushed by using the protruding position of the fulcrum ribs 13 and 13 as a fulcrum. Installed as possible. Therefore, it is not necessary to bend the strip 12 when the push button 7 is attached, and there is no need to worry about the damage of the push button 7. It can be done very easily. Moreover, the pressing force at the time of operating the push button 7 can be adjusted only by changing the projecting position of the fulcrum ribs 13 and 13 in the strip 12, and a design change as large as the conventional one is not necessary for adjusting the pressing force.

  Further, the fulcrum ribs 13, 13 project rearward from the strips 12, 12, and the tip of each fulcrum rib 13 is in contact with the front surface of the circuit board 9 located behind the push button 7. When the push button 7 is pushed backward, the tips of the fulcrum ribs 13 and 13 are pressed against the front surface of the circuit board 9 and are not easily displaced, so that the protruding positions of the fulcrum ribs 13 and 13 easily act as fulcrums. The operation of the push button 7 during the push-in operation can be stabilized.

  Further, support ribs 18 and 18 project rearward from the rear surface of the front case 2, and the positions of the tips of the support ribs 18 are the front sides of the fulcrum ribs 13 of the strips 12 when the push button 7 is attached. Therefore, each strip 12 is easily bent with the contact position of the support rib 18, that is, the protruding position of the fulcrum rib 13, as a fulcrum at the time of pushing operation, and the operation of the push button 7 at the time of pushing operation is further increased. It can be stabilized.

  In addition, a pressing piece 14 is provided on the push button 7, and when the push button 7 is attached, the pressing piece 14 is positioned in contact with the rear surface of the speaker 6, and the speaker 6 is supported in the speaker installation portion 19. It is possible. Therefore, it is not necessary to provide a dedicated member for fixing the speaker 6 (for example, a screwing portion having a screw hole), the configuration can be rationalized, and the mounting operation of the speaker 6 is facilitated. The assembly work of the machine 1 can be performed more easily.

  Note that the push button device of the call device according to the present invention is not limited to the aspect of the above-described embodiment, and the configuration related to the attachment of the push button 7 as well as the configuration of the call device is the gist of the present invention. As long as it does not deviate from the above, it can be changed as necessary.

For example, in the above embodiment, the fulcrum ribs 13 and 13 protrude rearward from the push button 7, but the fulcrum ribs 13 and 13 protrude forward from the push button 7, and the rear surface of the front case 2 and the circuit. The fulcrum ribs 13 and 13 may protrude from the front surface of the substrate 9 toward the strips 12 and 12 of the push button 7, and the member on which the fulcrum rib 13 is provided can be changed as appropriate.
Further, it is not always necessary to provide the support ribs 18, 18, and it is possible to adopt a configuration in which the push button 7 is attached by bringing the front surfaces of the strips 12, 12 into contact with the rear surface of the front case 2. is there. Furthermore, although the support ribs 18 and 18 are provided on the rear surface of the front case 2 in the above-described embodiment, the support ribs 18 and 18 may protrude from the strips 12 and 12 to the rear surface side of the front case 2.
Further, in the above embodiment, the pair of strips 12 and 12 are provided upward from the operation portion 11 of the push button 7, but when the push button 7 is provided at a substantially central position of the front case 2. The strips 12 and 12 may project downward from the operation unit 11, or a configuration in which not one two strips but one wide strip projecting from the operation unit may be employed. Is possible.

Furthermore, the presence or absence of the pressing piece 14 can be changed as appropriate. When the speaker 6 is not adjacent to the push button 7, it is not necessary to provide the pressing piece 14, and the speaker 6 is adjacent to the push button 7. Even if the pressing piece is provided, it is not installed between the tips of the strips 12 and 12, but a tongue piece is projected from the tip portion of each strip 12 to the adjacent side, and a pair of tongue pieces It is also possible to configure the speaker 6 to be supported from the rear.
In addition, although the push button device of the entrance cordless handset 1 has been described, the push button device of the present invention is also applicable to other telephone devices such as a room base phone or a telephone device of an intercom device installed in a dwelling unit. Can be applied well.

  1 .. Entrance cordless handset (telephone) 2. Front case 6. Speaker 7. Press button 8. Switch 9. Circuit board 11. Operation unit 11a , 12 .. Strips, 13 .. Supporting ribs, 14 .. Pressing pieces, 15 .. Screw holes (fixing parts), 16 .. Buffer members, 17 .. Screwing parts, 18 .. Supporting ribs, 19.・ Speaker installation part, 20 ・ ・ Recess.

Claims (3)

A telephone device that turns on / off a switch disposed behind the push button inside the telephone device case in accordance with a pushing operation to the rear of the push button provided on the front case constituting the front surface of the telephone device case. Push button device,
The push button includes an operation unit exposed on the front surface of the telephone equipment case, and a strip extending in the vertical direction from the operation unit,
At the tip of the strip, a fixing portion for fixing the push button to the rear surface of the front case is provided, and a desired position between the operation portion and the fixing portion of the strip is a fulcrum. A fulcrum rib is projected in the front-rear direction, or a fulcrum rib is projected from the rear surface of the front case or the circuit board having the switch toward the fulcrum, and the fulcrum is connected to the front case via the fulcrum rib. Rutotomoni provided with the push button in a state sandwiched by the front surface of the circuit board with the switch and the rear,
The push button is provided adjacent to a speaker for a call, and the speaker is supported in an installed state by contacting the rear surface of the speaker as the push button is fixed to the front case on the strip. A push button device for a telephone device, comprising a pressing piece .   2. The push button is provided in a state in which a fulcrum rib protrudes rearward from the fulcrum of the strip, and the tip of the fulcrum rib is in contact with the front surface of the circuit board. Push button device for telephone equipment.   From the rear surface of the front case toward the front side of the position where the fulcrum rib of the strip is provided, or from the front side of the position where the fulcrum rib of the strip is provided toward the front case The call device according to claim 2, wherein the push button is provided in a state of projecting and having a front end of the support rib in contact with a front surface of the strip or a rear surface of the front case. Push button device.

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