JP2022113469A - Intercom device - Google Patents

Abstract

To provide an intercom device configured to prevent a support projection from being bent, and to facilitate temporary assembling an operation member, while preventing fall of the temporarily assembled operation member.SOLUTION: On a sheet member 12, support projections 31, 31 projecting forward are arranged. In each of operation members 14, an operation unit 21 is provided which has a box shape opened to the rear and stores a tip of the support member 31. When the operation unit 21 is pressed, the support projection 31 moves backward to operate a switch 51. On a base 11 which is formed on a body case, attachment holes 41, 41.. are formed through which the support projections 31, 31 .. can be inserted. A regulation rib 42 and a holding rib 43 projecting forward are formed along an upper edge and a lower edge of each of the attachment holes 41. When attaching the sheet member 12 on the base 11, the regulation rib 42 is positioned along a top surface of the support projection 31 and the holding rib 43 is positioned along a bottom surface of the support projection 31.SELECTED DRAWING: Figure 10

Description

TECHNICAL FIELD The present invention relates to an interphone device such as an interphone base unit installed in a living room, for example.

2. Description of the Related Art Conventionally, an interphone device such as an interphone base unit is provided with various buttons that are pressed by a user. As such a button, an elastic synthetic resin sheet member is arranged on the front side of the switch board on which the switch is mounted, and a switch is placed on the front side of the sheet member to operate the switch through the sheet member. Some are constructed by attaching an operation member. In addition, as a structure for attaching such an operation member, a structure is adopted in which a support projection projecting forward is provided on the seat member, and the operation member is attached to the front side of the support projection (for example, patent Reference 1).

JP 2009-205925 A

However, when the operation member is attached to the above structure, the support projection may be bent upward or downward when the operation member is temporarily assembled on the front side of the support projection. However, there are problems such as that the operation member temporarily assembled on the support protrusion is likely to fall off. In particular, the problem becomes more conspicuous as the size of the supporting projection is reduced with the miniaturization of the intercom device.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide an interphone device in which the supporting projection is less likely to bend, the operating member is easier to temporarily assemble, and the temporarily assembled operating member is less likely to fall off. It is something to do.

In order to achieve the above object, the invention according to claim 1 of the present invention has a button provided on the front surface of the main body case, and an operation member that can be pushed and operated and a switch are mounted on the button. An interphone device comprising: a switch board; and a sheet member interposed between an operation member and the switch board, and operating the switch by contacting/separating from the switch as the operation member is operated, wherein the sheet member comprises: A support protrusion projecting forward is provided, and the operation member is provided with a box-shaped operation section that opens rearward and can accommodate the tip side of the support protrusion. As a result, the support protrusion moves backward to operate the switch, while a mounting hole through which the support protrusion can be inserted is formed in the main body case, and the peripheral edge of the mounting hole protrudes forward. A rib is provided, and the rib is positioned along the peripheral surface of the supporting projection as the sheet member is attached to the main body case.
According to the first aspect of the invention, a mounting hole through which the support projection can be inserted is formed in the main body case, and a rib protruding forward is provided on the periphery of the mounting hole, As the sheet member is attached to the main body case, the ribs are positioned along the peripheral surface of the support protrusion, so the support protrusion is less likely to bend when the operation member is temporarily assembled to the support protrusion. . Therefore, it is possible to provide an interphone device in which the operation member can be temporarily assembled to the supporting projections easily, and the operation member in the temporarily assembled state is unlikely to come off accidentally.

Further, the invention according to claim 2 is the invention according to claim 1, wherein the operating portion is provided with a pair of regulating protrusions that protrude upward or downward and are separated from each other by a predetermined distance in the left-right direction. On the other hand, the rib is provided with a restricting rib that is fitted between the restricting projecting pieces as the supporting projection is accommodated in the operating portion. On the other hand, according to the invention of claim 3, in the invention of claim 1, the operating portion is provided with a pair of regulating protrusions projecting leftward or rightward and separated vertically by a predetermined distance. On the other hand, the control rib is provided as a rib to be fitted between the control projecting pieces as the supporting protrusion is accommodated in the operating portion.
According to the invention described in claims 2 and 3, the restriction ribs are provided as ribs to be fitted between the restriction protrusions projecting from the operation part as the supporting projections are accommodated in the operation part. Therefore, it is possible to more reliably prevent the operation member inadvertently falling off in the temporarily assembled state.

According to the present invention, a mounting hole through which the support projection can be inserted is formed in the main body case, and a rib protruding forward is provided on the peripheral edge of the mounting hole, and the main body case of the seat member is provided. Since the ribs are positioned along the peripheral surface of the support projections as they are attached to the side, the support projections are less likely to bend when the operating member is temporarily assembled to the support projections. Therefore, it is possible to provide an interphone device in which the operation member can be temporarily assembled to the supporting projections easily, and the operation member in the temporarily assembled state is unlikely to come off accidentally.

It is a perspective explanatory view showing the front side of the intercom base unit. FIG. 4 is an explanatory view showing the front side of the parent device main body; FIG. 4 is a perspective explanatory view showing the front side of a base on which an operation member and a sheet member are attached; FIG. 4 is a perspective explanatory view showing the front side of the base to which the sheet member is attached; It is the perspective explanatory view which showed the front side of the base from the downward direction. It is perspective explanatory drawing which showed the operation member, (a) has shown the front surface side, (b) has each shown the rear surface side. It is perspective explanatory drawing which showed the sheet|seat member, (a) has shown the front surface side, (b) has each shown the rear surface side. It is the perspective explanatory drawing which expanded and showed the operation window vicinity in the rear surface side of a front case. FIG. 3 is an explanatory view showing an enlarged setting button portion in a section taken along the line AA in FIG. 2; FIG. 3 is an explanatory view showing an enlarged setting button portion in the BB line cross section in FIG. 2;

BEST MODE FOR CARRYING OUT THE INVENTION A wireless type intercom master unit according to an embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective explanatory view showing the front side of the intercom master unit 1. FIG. FIG. 2 is an explanatory diagram showing the front side of the main unit body 2. As shown in FIG. 3 is a perspective explanatory view showing the front side of the base 11 to which the operating members 14, 14, . . . and the sheet member 12 are attached. FIG. 4 is a perspective explanatory view showing the front side of the base 11 to which the sheet member 12 is attached. FIG. 5 is a perspective explanatory view showing the front side of the base 11 from below. 6A and 6B are perspective explanatory views showing the operation member 14, in which FIG. 6A shows the front side and FIG. 6B shows the rear side. 7A and 7B are perspective explanatory views showing the seat member 12, in which FIG. 7A shows the front side and FIG. 7B shows the rear side. FIG. 8 is an enlarged perspective explanatory view showing the vicinity of the operation window 15 on the rear surface side of the front case 4. As shown in FIG. FIG. 9 is an explanatory diagram showing an enlarged view of the setting button 10 in the section taken along the line AA in FIG. FIG. 10 is an explanatory diagram showing an enlarged view of the setting button 10 in the BB line section of FIG.

The intercom base unit 1 comprises a base unit body 2 and a charging stand 3 for charging the base unit body 2. The base unit body 2 includes a front case 4 arranged on the front side and a rear side of the front case 4. It has a main body case composed of a rear case 5 assembled to. A display section 6 for displaying the time, the state of communication with an intercom slave unit (not shown), and the like is provided on the upper front portion of the main body case. In addition, on the front lower part of the main unit case of the base unit main unit 2, there are a response button 7 operated when answering a call from the intercom slave unit, and a microphone unit 8 for communicating with the intercom slave unit. is provided. Furthermore, three push-operable setting buttons 10, 10, . . . Such an intercom base unit 1 is installed in a living room, and when the response button 7 is operated in response to a call from the intercom cordless handset, a call can be made with the intercom cordless handset. becomes. Note that the base unit main body 2 is also provided with a speaker unit (not shown) for communicating with the intercom slave unit. A transparent panel 9 constitutes the display unit 6 .

Here, the setting buttons 10, 10, . . .
The setting button 10 includes an operation member 14 operated by a user, a switch board 13 arranged behind a base 11 fixed inside the main body case, and installed on the base 11, and the operation member 14 and the switch board are mounted on the base 11. 13 and a sheet member 12 interposed therebetween. The front case 4 is provided with an operation window 15 through which the operation portion 21 of the operation member 14 can be inserted. In addition, on the inner surface of the front case 4, a restriction step portion 16 protruding rearward extends in the left-right direction along the upper edge of the operation window 15. As shown in FIG.

The operation member 14 includes an operation portion 21 formed in a substantially parallelepiped box shape that opens rearward, and an upper rib 22 that extends upward from the rear end of the upper surface of the operation portion 21 and whose tip is bent rearward. , regulating projections 23 projecting upward from both left and right ends of the bent portion of the upper rib 22 , and positioning projections 24 projecting rearward from the operating portion 21 . The space inside the operating portion 21 serves as a storage space capable of storing a support projection 31, which will be described later.

The sheet member 12 is molded from an elastic synthetic resin (for example, silicon rubber), and when it is arranged on the front side of the switch board 13, the sheet member 12 is positioned corresponding to the switches 51, 51 . . . . are housed in the operating portion 21 and protrude forwardly so as to move in the front-rear direction as the operating member 14 is pushed. A step is provided between the distal end side and the proximal end side of the upper surface of each supporting projection 31 so that the distal end side is smaller than the proximal end side. A supporting stepped portion 32 is provided for stabilizing the placed operating member 14 . Positioning holes 33, 33 into which the positioning projections 24, 24 are inserted are recessed in the tip end surface of each supporting projection 31. As shown in FIG. Further, on the rear surface (back surface on the base end side) of each supporting projection 31, an operation projection 34 is provided rearwardly for operating the switch 51 by contacting/separating from the switch 51 as it moves in the front-rear direction. there is

Also, the sheet member 12 is attached to the rear surface side of the base 11 . Therefore, the base 11 is provided with mounting holes 41, 41, . Along the upper edge of each mounting hole 41 , when the sheet member 12 is mounted, along the upper surface of the supporting convex portion 31 , it protrudes forward, and when the supporting convex portion 31 is housed in the operating portion 21 , the operating portion 21 is operated. A regulating rib 42 is provided to fit between the regulating protrusions 23, 23 of the member 14. - 特許庁Further, along the lower edge of each mounting hole 41, a holding rib 43 is provided that protrudes forward along the lower surface of the supporting projection 31 when the sheet member 12 is mounted.

In order to assemble the setting buttons 10, 10, . A sheet member 12 is attached to 11 . By attaching the sheet member 12 in this way, the regulating ribs 42 are positioned above the supporting protrusions 31 and the holding ribs 43 are positioned below the supporting protrusions 31 . Next, the base 11 is fixed to the rear case 5 with the switch board 13 arranged on the rear side of the base 11 . Furthermore, after temporarily assembling the operation members 14, 14, . . . to the supporting projections 31, 31, . . In the temporarily assembled state of the operating members 14, 14, . The upper rib 22 has the regulating protrusions 23 and 23 located on the upper surface on the base end side of each supporting stepped portion 32 , and the supporting convex portion 31 is covered with the operating member 14 . Further, the positioning projections 24, 24 are inserted into the positioning holes 33, 33, and the regulating rib 42 of the base 11 is fitted between the regulating projections 23, 23 of each operating member 14. As shown in FIG. Furthermore, as the front case 4 is assembled, the regulating stepped portion 16 is positioned in front of the regulating projections 23, 23 of the operating members 14. As shown in FIG.

According to the main unit 2 having the above configuration, the sheet member 12 is provided with the support protrusions 31, 31 projecting forward, and each operation member 14 is provided with a box-shaped support protrusion opening rearward. An operation portion 21 is provided in which the distal end side of the portion 31 can be accommodated. As the operation portion 21 is pushed, the support projection 31 moves rearward so that the switch 51 is operated. The base 11 is provided with mounting holes 41, 41 through which the supporting projections 31, 31, . A regulating rib 42 and a holding rib 43 are provided, and when the sheet member 12 is attached to the base 11 , the regulating rib 42 extends along the upper surface of the supporting projection 31 and the holding rib 43 extends along the lower surface of the supporting projection 31 . They are positioned along each other. Therefore, when the operation member 14 is temporarily assembled to the support protrusion 31, the support protrusion 31 does not bend upward or downward. Therefore, the operation of temporarily assembling the operation member 14 to the supporting projection 31 is simplified, and the operation member 14 in the temporarily assembled state is less likely to come off accidentally.

Positioning holes 33, 33 are recessed in the tip surface of each supporting projection 31, and positioning protrusions 24, 24 that can be inserted into the positioning holes 33, 33 are protruded rearward from the operating portion 21 of each operating member 14. are set up. Therefore, the temporarily assembled operation members 14, 14, .

Further, a step is provided between the tip end side and the base end side of the upper surface of each support projection 31 so that the tip end side is smaller than the base end side, forming a support step portion 32 . , an upper rib 22 projecting upward from the operating portion 21 and having its tip bent rearward, and regulating protrusions 23, 23 projecting further upward from both left and right ends of the bent portions of the upper rib 22 are provided to provide a temporarily assembled state. In the state where the upper rib 22 is positioned on the front side of each supporting stepped portion 32, and the restricting protrusions 23, 23 are positioned on the upper surface on the base end side of each supporting stepped portion 32, the supporting convex portion 31 is positioned on the operating member. 14 is covered. Therefore, the temporarily assembled operation members 14, 14, . . . can be further stabilized.
In addition, since the base 11 is provided with the restricting rib 42 that is fitted between the restricting projecting pieces 23 when the supporting protrusion 31 is accommodated in the operating portion 21, the operation in the temporarily assembled state is prevented. Member 14 can be very stable.

In the intercom device according to the present invention, not only the overall configuration of the intercom device but also the configuration related to the installation structure of the buttons can be appropriately changed as necessary without departing from the gist of the present invention. .

For example, in the above embodiment, the restricting rib is provided along the upper edge of the mounting hole, and the holding rib is provided along the lower edge of the mounting hole. It is also possible to provide ribs that form an arc when viewed from the front.
Further, in the above embodiment, the sheet member is attached to the base on the side of the main body case, but it is also possible to attach the sheet member to the inner surface of the front case that constitutes the main body case. The mounting holes may be drilled in the front surface of the front case, and the ribs may also be provided in the front surface of the front case.

Furthermore, in the above-described embodiment, the restricting protrusion protruding upward from the operation portion is provided at a predetermined distance in the left-right direction. A pair of regulating protrusions separated by a predetermined distance in the left-right direction may be provided, or a pair of regulating protrusions may be provided that protrude leftward or rightward from the operating portion and are separated by a predetermined distance in the vertical direction. is also possible.

Furthermore, the number of restricting protrusions and restricting ribs can also be changed as appropriate, and three or more restricting protrusions are provided and two or more restricting ribs are provided (for example, along the upper edge of each mounting hole). There is no problem even if two or more regulating ribs are intermittently provided). Furthermore, the number and shape of the positioning projections and positioning holes can be changed as appropriate. , it can be suitably adopted for other intercom equipment such as an intercom slave unit and an intercom master unit installed on the wall surface of a living room, and the type of buttons is not limited to setting buttons at all. Instead, it may be a response button or the like.

1 Intercom main unit 2 Main unit main unit (intercom device) 4 Front case (main unit case) 5 Rear case (main unit case) 10 Setting button (button) 11 Base (body case side) 12 Sheet member 13 Switch board 14 Operation member 21 Operation part 22 Upper rib 23 Regulating projection 24 Positioning projection , 31 .. Support convex portion 32 .. Support step portion 33 .. Positioning hole 41 .. Mounting hole 42 .

Claims (3)

A button is provided on the front surface of the body case, and the button is interposed between an operation member that can be pushed and operated, a switch board on which a switch is mounted, and the operation member and the switch board. An interphone device comprising a sheet member that contacts/separates from the switch as the member is operated to operate the switch,
The sheet member is provided with a support protrusion projecting forward,
The operation member is provided with a box-shaped operation portion that opens rearward and that can accommodate the tip end side of the support protrusion,
While the switch is operated by moving the supporting protrusion backward along with the pushing operation of the operating portion,
A mounting hole through which the support protrusion can be inserted is formed in the main body case, and a rib protruding forward is provided on the periphery of the mounting hole,
An interphone device according to claim 1, wherein the rib is positioned along the peripheral surface of the supporting projection as the sheet member is attached to the main body case. The operating portion is provided with a pair of regulating protrusions that protrude upward or downward and are spaced apart in the left-right direction by a predetermined distance,
2. The intercom device according to claim 1, wherein the rib is provided with a restricting rib that is fitted between the restricting projecting pieces as the supporting protrusion is accommodated in the operating portion. The operating portion is provided with a pair of regulating protrusions that protrude leftward or rightward and that are vertically spaced apart from each other by a predetermined distance,
2. The intercom device according to claim 1, wherein the rib is provided with a restricting rib that is fitted between the restricting projecting pieces as the supporting protrusion is accommodated in the operating portion.

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