Intercom device

Abstract

To provide an intercom apparatus in which a terminal is less likely to fall or rotate on a substrate even when a cable connected to the terminal is pulled, and installation work can be simplified.SOLUTION: An insulation cover 20 is provided with an exposure unit for exposing a terminal 10. A fall prevention protrusion 21 protruding to an inside of the exposure unit is provided. A lower surface of the fall prevention protrusion 21 is formed as a wall surface 21A standing substantially horizontally in a longitudinal direction, so that when the insulation cover 20 is attached, the wall surface 21A is positioned adjacent to the terminals 10, and the movement of the terminal 10 is adapted to be regulated by the wall surface 21A.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to an intercom device such as an intercom master unit having a terminal into which a cable extending from another device is plugged and connected.

Background Art

[0002] Conventional general intercom devices are provided with terminals to which cables extending from other devices are connected (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In an intercom device having such a terminal, when the cable is pulled while the cable is connected to the terminal, the terminal may fall or rotate on the substrate. Therefore, for example, when installing the intercom device on a wall surface, it is necessary to work extremely carefully so that no load is applied to the cable, and there is a problem that the installation work is very troublesome.

[0005] Therefore, the present invention has been made in view of the above problems, and even if the cable connected to the terminal is pulled, etc., it is difficult for the terminal to fall or rotate on the substrate, and an intercom device that can simplify the installation work is to be provided.

Means for Solving the Problems

[0006] In order to achieve the above object, the invention according to claim 1 of the present invention is an intercom device in which a substrate having terminals into which a cable can be inserted and connected is mounted on the front surface inside a main body case, and an insulating cover that covers the front of the substrate is attached. The insulating cover is provided with a wall surface extending in the front-rear direction. When the insulating cover is attached, the wall surface is positioned adjacent to the terminal, and movement of the terminal toward the wall surface side is restricted by the wall surface. According to the invention described in claim 1, the insulating cover is provided with a wall surface extending in the front-rear direction. When the insulating cover is attached, the wall surface is positioned adjacent to the terminal, and movement of the terminal toward the wall surface side is restricted by the wall surface. Therefore, even if the cable connected to the terminal is pulled, etc., the terminal will not fall to the wall surface side or rotate about the front-rear direction axis, and the installation work can be simplified.

[0007] The invention according to claim 2 is the invention according to claim 1, wherein the main body case is provided with an inlet for pulling in the cable, and when the insulating cover is attached, the wall surface is positioned adjacent to the side of the terminal on the inlet side, and movement of the terminal toward the wall surface side is restricted by the wall surface. According to the invention described in claim 2, when the insulating cover is attached, the wall surface is positioned adjacent to the side of the terminal on the inlet side, and movement of the terminal toward the wall surface side is restricted by the wall surface. Therefore, when the cable connected to the terminal is pulled, etc., it is possible to provide an intercom device in which the situation where the terminal falls to the wall surface side or rotates about the front-rear direction axis is less likely to occur.

[0008] The invention according to claim 3 is the invention according to claim 1 or 2, wherein a screwing portion for attaching the insulating cover is provided in the vicinity of the wall surface of the insulating cover. According to the invention described in claim 3, since a screwing portion for attaching the insulating cover is provided near the wall surface of the insulating cover, it is possible to improve the strength of the wall surface when the insulating cover is attached, and when the cable connected to the terminal is pulled or the like, it is extremely difficult for the terminal to fall to the wall surface side or rotate about the front-rear direction axis. Thus, an intercom device can be provided.

Effect of the Invention

[0009] According to the present invention, a wall surface extending in the front-rear direction is provided on the insulating cover. When the insulating cover is attached, the wall surface is positioned adjacent to the terminal, and the movement of the terminal toward the wall surface side is restricted by the wall surface. Therefore, even if the cable connected to the terminal is pulled or the like, the terminal will not fall to the wall surface side or rotate about the front-rear direction axis, and the installation work can be simplified.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiment for Carrying Out the Invention

[0011] Hereinafter, the master unit of the intercom according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0012] FIG. 1 is an explanatory view showing the master unit 1 of the intercom from the front side. FIG. 2 is a perspective explanatory view showing the master unit 1 of the intercom from the rear side. FIG. 3 is an explanatory view showing the master unit 1 with the front case 2 removed from the front side. FIG. 4 is an explanatory view showing an enlarged view of the area B in FIG. 3. FIG. 5 is an explanatory view showing the master unit 1 with the insulating cover 20 removed from the state of FIG. 3 from the front side. FIG. 6 is a perspective explanatory view showing the insulating cover 20 from the front side. FIG. 7 is an explanatory view showing an enlarged view of a part of the cross section taken along the line A-A in FIG. 1.

[0013] The master unit 1 of the intercom has a main body case formed by assembling a front case 2 arranged on the front side and a rear case 3 arranged on the rear side. On the upper part of the front surface of this main body case, the screen of the liquid crystal display device is exposed, and it serves as a video display unit 4 for displaying videos and the like captured by an intercom slave unit (not shown). Further, a microphone unit 5 for a call between the resident and the visitor is provided on the left side of the video display unit 4. Furthermore, on the lower side of the video display unit 4, a response button 6 that can be pushed in by the resident when responding to a call from the intercom slave unit is provided so as to be operable. Also, function buttons 8, 8 for adjusting the volume related to the call and the like are provided on the left side of the response button 6 so as to be push-in operable, and a speaker unit 7 for a call between the resident and the visitor is provided on the left side of that. And such a master unit 1 of the intercom is installed on the wall surface in the room and the like, and when a video captured by the intercom slave unit in response to a call from the intercom slave unit is displayed on the video display unit 4, a call with the intercom slave unit can be made by operating the response button 6.

[0014] Here, the structure related to preventing the terminal 10, which is the main part of the present invention, from falling over will be described. The rear case 3 has a storage portion formed into a rectangular box shape that bulges rearward. Inside the storage portion, a control board 12 with terminals 10 mounted on the front surface into which a cable (not shown) can be inserted and connected is stored and installed on the rear surface of the storage portion. Further, notches are provided at locations above the terminals 10 on the upper surface, right side surface, and rear surface of the storage portion, serving as lead-in ports 13 for leading the cable connected to the terminals 10 into the storage portion (inside the main body case).

[0015] Furthermore, inside the storage portion 11, an insulating cover 20 for insulating the control board 12 that controls the operation of the intercom master unit 1 (particularly operations related to calls) and the liquid crystal display device 30 arranged on the front side thereof is attached so as to cover a part of the front of the control board 12. The right part of the insulating cover 20 is largely cut out (an exposed portion is provided) to expose the terminals 10 when attached to the control board 12. At the upper end of the right part, a fall prevention convex portion 21 that protrudes to the right side (inside the exposed portion) and prevents the terminals 10 from falling down as will be described later is provided. The lower surface of the fall prevention convex portion 21 is formed as a wall surface 21A that stands up substantially horizontally in the front-rear direction, and the front-rear height of the wall surface 21A is substantially the same as the protruding height (frontward protruding height) of the terminals 10 on the control board 12 (Figure 7). In addition, a screwing portion 22 for screwing the insulating cover 20 is provided in the vicinity of the fall prevention convex portion 21 (specifically, at a location adjacent to the base end of the fall prevention convex portion 21). Note that screwing portions 23, 23... are also provided at locations other than the screwing portion 22 on the insulating cover 20.

[0016] When the insulating cover 20 as described above is attached, the anti-tip projection 21 is positioned adjacent to the upper side of the terminal 10, that is, adjacent to the side where the cable extends when the cable is inserted and connected to the terminal 10 (the side where the insertion port 13 is open), and a wall surface 21A that stands upright in the front-rear direction is provided adjacent to the upper side of the terminal 10. Therefore, even if the cable is pulled, etc. in a situation where the cable is connected to the terminal 10, the movement of the terminal 10 is restricted by the wall surface 21A adjacent to the terminal 10. For example, the terminal 10 will not fall upward or rotate in a posture that slopes upward to the upper right when viewed from the front. Therefore, it is possible to simplify the installation work of installing the intercom master unit 1 on the installation surface.

[0017] According to the intercom master unit 1 having the above configuration, an exposed portion for exposing the terminal 10 is provided on the insulating cover 20, and an anti-tip projection 21 that protrudes inside the exposed portion is provided. The lower surface of the anti-tip projection 21 is a wall surface 21A that stands upright in the front-rear direction in a substantially horizontal manner. When the insulating cover 20 is attached, the wall surface 21A is positioned adjacent to the terminal 10. In particular, the wall surface 21A is positioned adjacent to the side of the insertion port 13 of the terminal 10. Therefore, since the movement of the terminal 10 is restricted by the wall surface 21A, even if the cable connected to the terminal 10 is pulled, the terminal 10 will not fall to the side of the wall surface 21A or rotate about the front-rear direction axis on the control board 12, and it is possible to simplify the installation work.

[0018] In addition, since a screwing portion 22 for attaching the insulating cover 20 is provided in the vicinity of the wall surface 21A of the insulating cover 20, it is possible to improve the strength of the wall surface 21A when the insulating cover 20 is attached. When the cable connected to the terminal 10 is pulled, etc., it is possible to make the intercom master unit 1 in which the situation that the terminal 10 falls to the side of the wall surface 21A or rotates about the front-rear direction axis is extremely unlikely to occur.

[0019] Note that the intercom device according to the present invention can be appropriately changed as needed without departing from the gist of the present invention, not only for the overall configuration of the intercom device but also for the configuration related to preventing the terminals from falling over and the like.

[0020] For example, in the above embodiment, only one wall surface is formed on the insulating cover, but it is also possible to form two or more wall surfaces so that a group of terminals arranged side by side in the vertical or horizontal direction is sandwiched between the wall surfaces from above and below or from left and right. That is, the number and position of the wall surfaces in the insulating cover can be appropriately changed in design. Also, even if only one wall surface is formed on the insulating cover, depending on the position on the control board where the terminal is mounted, the position where the wall surface is formed on the insulating cover can be appropriately changed in design. In addition, although the above embodiment describes the intercom master unit, the present invention can be preferably applied to other intercom devices such as intercom slave units and collective entrance units as long as a board having terminals that can be plugged and connected with a cable is built in the main body case.

Explanation of Reference Numerals

[0021] 1 ··· Intercom master unit (intercom device), 2 ··· Front case (main body case), 3 ··· Rear case (main body case), 10 ··· Terminal, 12 ··· Control board (board), 13 ··· Pull-in port, 20 ··· Insulating cover, 21 ··· Anti-tipping projection, 21A ··· Wall surface, 22 ··· Screwing portion.

Claims

1. An intercom device in which a substrate having terminals capable of inserting and connecting a cable mounted on the front surface and an insulating cover covering the front of the substrate are attached inside a main body case, The insulating cover is provided with a wall surface extending in the front-rear direction, When the insulating cover is attached, the wall surface is positioned adjacent to the terminal, and movement of the terminal toward the wall surface side is restricted by the wall surface. The intercom device is characterized by this.

2. The main body case is provided with an inlet for drawing in the cable, and When the insulating cover is attached, the wall surface is positioned adjacent to the side of the terminal on the inlet side, and movement of the terminal toward the wall surface side is restricted by the wall surface. The intercom device according to claim 1 is characterized by this.

3. The intercom device according to claim 1 or 2, characterized in that a screwing portion for attaching the insulating cover is provided in the vicinity of the wall surface of the insulating cover.

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