JP7009322B2 - Intercom equipment - Google Patents

Description

The present invention relates to an intercom device provided with a camera for photographing a visitor or the like, for example.

Conventionally, for example, as an intercom slave unit, which is an example of an intercom device, there is one equipped with a camera for photographing a visitor on the front surface of the main body case. Further, in such an intercom slave unit, the camera is held in a camera holder that rotates about the left-right direction, and the imaging angle in the vertical direction, that is, the tilt angle can be adjusted according to the installation environment of the intercom device. It may be provided (for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2016-189573

However, in recent years, it has been desired to provide a camera so that not only the tilt angle but also the imaging angle in the left-right direction, that is, the pan angle can be adjusted.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide an intercom device capable of adjusting the imaging angle of a camera in both pan and tilt directions.

In order to achieve the above object, the invention according to claim 1 of the present invention includes a holder member having a lens and a camera substrate on which a control element is mounted and fixed to the rear surface of the holder member. The camera is an interphone device that is attached to the front of the main body case so that it can take an image. A knob is provided at the tip of the shaft of the camera, and the knob is exposed in the operation window provided on the surface of the main body case, and further protrudes rearward on the center line of the lens on the rear surface of the camera substrate. While the angle adjusting member provided with the adjusting protrusion is fixed, the main body case is provided with a shaft support portion that supports the left and right shaft parts so as to be movable in the front-rear direction, and also in the main body case. At a position facing the rear side of the adjusting protrusion, a spherically formed recess recessed to the rear side is provided, and in the recess, a plurality of adjusting recesses with which the adjusting protrusion can be engaged are provided in a predetermined area. It is provided up, down, left and right, and it is characterized by being able to change the pan / tilt angle of the camera by operating the knob part from the outside of the main body case and changing the adjustment recess where the adjustment protrusion engages. do.
According to the first aspect of the present invention, an angle adjusting member having an adjusting protrusion protruding rearward on the center line of the lens is fixed to the rear surface of the camera substrate, while the left and right shaft portions are respectively placed in the main body case. A shaft support portion that supports the shaft so as to be movable in the front-rear direction is provided, and a spherically formed recess that is recessed to the rear side is provided at a position facing the rear side of the adjustment protrusion in the main body case, and further inside the recess. , A plurality of adjusting recesses with which the adjusting protrusions can be engaged are provided up, down, left and right within a predetermined area. Therefore, the imaging angle of the camera can be adjusted in both pan and tilt directions by operating the knob portion from the outside of the main body case to change the adjustment recess with which the adjustment protrusion engages.

Further, in the invention according to claim 2, in the invention according to claim 1, the angle adjusting member has a base portion fixed to the rear surface of the camera substrate, and the adjusting protrusion has an elastic portion having elasticity. It is connected to the base portion via the above, and is characterized in that the engaged state between the adjusting protrusion and the adjusting recess is maintained by the elastic force of the elastic portion.
According to the second aspect of the present invention, since the adjusting protrusion is connected to the base portion via the elastic portion having elasticity, the engagement state between the adjusting protrusion and the adjusting recess is caused by the elastic force of the elastic portion. Retained. Therefore, since a separate member for holding the engaged state between the adjusting protrusion and the adjusting recess is not required, the camera can be easily held at a desired pan / tilt angle, and the configuration of the communication device can be simplified. As a result, it is possible to reduce the size of communication equipment.

According to the present invention, shaft portions projecting outward from the left and right are provided on both the left and right sides of the holder member, and a knob portion is provided at the tip of either the left or right shaft portion, which is provided on the surface of the main body case. The knob is exposed in the operation window. Further, an angle adjusting member having an adjusting protrusion protruding rearward on the center line of the lens is fixed to the rear surface of the camera substrate. On the other hand, in the main body case, a shaft support portion that supports the left and right shaft portions so as to be movable in the front-rear direction is provided, and a spherical surface that dents rearward at a position facing the rear side of the adjustment protrusion in the main body case. A recess formed in a shape is provided, and a plurality of adjustment recesses with which the adjustment protrusion can be engaged are provided in the recess in the vertical and horizontal directions within a predetermined region. Therefore, the imaging angle of the camera can be adjusted in both pan and tilt directions by operating the knob portion from the outside of the main body case to change the adjustment recess with which the adjustment protrusion engages.

It is explanatory drawing which showed the intercom handset from the front side. It is a perspective explanatory view which showed the front case in the state which the decorative cover was removed from the front side. It is a perspective explanatory view which showed the intercom slave unit from the rear side. It is a perspective explanatory view which showed the rear case from the front side. It is a perspective explanatory view which showed the state which the rear case was removed from the rear side. It is explanatory drawing which showed the vertical cross section of the camera part in the intercom handset. It is explanatory drawing which showed the horizontal cross section of the camera part in the intercom handset. It is explanatory drawing which showed the state which adjusted the imaging angle of a camera to the upper right. It is explanatory drawing which showed the state which adjusted the imaging angle of a camera to the lower left.

Hereinafter, the intercom slave unit according to the embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an explanatory diagram showing the intercom slave unit 1 from the front side. FIG. 2 is a perspective explanatory view showing the front case 2 in a state where the decorative cover 10 is removed from the front side, and the camera 11 faces substantially the front. FIG. 3 is a perspective explanatory view showing the intercom slave unit 1 from the rear side. FIG. 4 is a perspective explanatory view showing the rear case 3 from the front side. FIG. 5 is a perspective explanatory view showing a state in which the rear case 3 is removed from the rear side. FIG. 6 is an explanatory diagram showing a vertical cross section of the camera 11 portion in the intercom slave unit 1. FIG. 7 is an explanatory diagram showing a horizontal cross section of the camera 11 portion in the intercom slave unit 1. FIG. 8 is an explanatory diagram showing a state in which the imaging angle of the camera 11 is adjusted to the upper right. FIG. 9 is an explanatory diagram showing a state in which the imaging angle of the camera 11 is adjusted to the lower left.

The intercom slave unit 1 includes a main body case composed of a front case 2 arranged on the front side and a rear case 3 arranged on the rear side, and a decorative cover 10 attached to the front surface of the main body case. A camera window 4 is opened in the upper part of the front surface of the main body case, and the camera 11 is installed in the main body case so that the lens 5 is exposed in the camera window 4. Further, on the right side of the camera window 4, a microphone unit 6 for a telephone call is provided. Further, on the lower side of the camera window 4, a call button 7 operated when a visitor calls a resident and a speaker unit 8 for a call are provided. Such an intercom slave unit 1 is installed on the wall surface of the entrance of the dwelling unit, and when the call button 7 is operated by a visitor, the intercom master unit installed in the dwelling unit (not shown). At the same time, the camera 11 is activated to take an image of the visitor. Reference numeral 9 is a camera cover that covers the camera window 4. Further, the image captured by the camera 11 is displayed on the monitor provided in the intercom master unit.

Here, the mounting structure of the camera 11 in the main body case will be described.
First, the camera 11 is screwed to the lens 5, the lens barrel 12 that holds the lens 5, the lens holder 13 that holds the lens barrel 12, the camera holder 14 to which the lens holder 13 is assembled, and the lens holder 13. It has a camera board 15 on which various elements are mounted, and an angle adjusting member 16 assembled on the rear surface side of the camera board 15. The lens holder 13 has a base portion 21 formed in a substantially rectangular box shape that opens to the rear side, and the internal space thereof is a storage recess 23 that can store a part of the camera substrate 15. .. Further, a threaded portion 22 formed into a cylindrical shape protruding forward is provided substantially in the center of the front surface of the base portion 21, and a screw groove is engraved on the inner surface of the screwed portion 22 to form a lens. The rear part of the lens barrel 12 can be screwed in from the front. Further, on both the left and right sides of the base portion 21, substrate fixing portions 24, 24 for screwing the camera substrate 15 are provided. The inside of the screwed portion 22 and the inside of the storage recess 23 communicate with each other.

The camera holder 14 has a dome-shaped main body 31 that bulges forward, and a spherical surface portion 31a formed into a spherical surface is provided on the surface of the main body 31. Further, a lens hole 34 for exposing the lens 5 is provided on the front surface of the main body 31, and the front portion of the lens barrel 12 can be inserted from the opening edge of the lens hole 34 to the rear. The cylinder 35 is projected. Further, the rear end edge of the left portion of the main body 31 is provided with an operation shaft piece 32 protruding to the left, while the rear end edge of the right portion of the main body 31 is operated through the center of the lens hole 34. A rotating shaft portion 33 projecting to the right is provided at a position facing the shaft piece 32. The operation shaft piece 32 has a shaft portion protruding from the main body 31 and an operation knob 32a provided at the tip of the shaft portion, and the operation knob 32a has a plate portion extending in the vertical direction and the plate portion. It has a rib erected forward from the plate portion. In addition, fixing portions 36, 36 for integrating with the lens holder 13 via the camera substrate 15 and the angle adjusting member 16 are provided on the outer peripheral edge portion of the main body 31. The spherical surface portion 31a has a point where the center line of the lens 5 (which is also the center of the lens hole 34) and the rotation axis of the camera holder 14 (the center line of the operation shaft piece 32 and the rotation shaft portion 33) intersect. It is said to be a spherical surface with a center.

The angle adjusting member 16 has a first screwing portion 64 for screwing to the lens holder 13 via the camera board 15 and a second screwing portion for screwing to the camera holder 14 via the camera board 15. It has a base portion 61 having portions 65 on the left and right sides, an adjusting protrusion 62 projecting rearward, and an elastic portion 63 elastically deformable to connect the base portion 61 and the adjusting protrusion 62. The angle adjusting member 16 is screwed to the rear surface of the camera substrate 15 so that the tip of the adjusting protrusion 62 is located on the center line of the lens 5.

On the other hand, on the rear surface of the front case 2, a holding wall 40 for holding the camera holder 14 is projected rearward along the peripheral edge of the camera window 4. The inner surface of the holding wall 40 is formed so that the surface of the spherical surface portion 31a is in close contact with the inner surface of the holding wall 40 and relatively moves on the spherical surface portion 31a while being in close contact with the inner surface of the holding wall 40 when the camera holder 14 is pan-tilted. Further, on the rear surface of the front case 2, on the left side (when viewed from the front) of the camera window 4, a rib having a groove 41 cut forward is provided. The vertical width of the groove 41 is substantially the same as the diameter of the shaft portion of the operation shaft piece 32, and functions as a bearing that supports the shaft portion of the operation shaft piece 32 when adjusting the tilt angle of the camera 11. It is designed to do. Further, the front-rear length of the groove 41 is sufficiently longer than the diameter of the shaft portion of the operation shaft piece 32, and it is possible to allow the operation shaft piece 32 to move in the front-rear direction as the pan angle of the camera 11 is adjusted. It has become. In addition, an operation window 17 for exposing the operation knob 32a of the operation shaft piece 32 is provided at a position on the left side of the rib in the front case 2. On the other hand, on the rear surface of the front case 2, on the right side (when viewed from the front) of the camera window 4, a front view U-shaped shaft support wall 42 is projected rearward. The vertical width of the shaft support wall 42 is substantially the same as the diameter of the rotating shaft portion 33, and the rotating shaft portion 33 can be pivotally supported when adjusting the tilt angle of the camera 11. Further, the front-rear length of the shaft support wall 42 is sufficiently longer than the diameter of the rotation shaft portion 33, and the rotation shaft portion 33 is allowed to move in the front-rear direction as the pan angle of the camera 11 is adjusted. It is possible.

On the other hand, on the front surface of the rear case 3, a concave portion 52 recessed in a spherical shape to the rear is provided at a position on the rear side of the camera window 4 when assembled to the front case 2, and the bottom of the concave portion 52 is provided with a concave portion 52. A plurality of adjusting recesses 53, 53, ... With which the tips of the adjusting protrusions 62 can be engaged are provided so as to be densely arranged vertically and horizontally within a predetermined region. Further, on the left and right sides of the recess 52, at the position facing the rear of the groove 41 when assembling to the front case 2 and the position facing the rear of the shaft support wall 42, the shaft portion and the rotating shaft of the operating shaft piece 32 are located. Shaft support 51, 51 capable of shaft support of the portion 33 are provided.

In the camera 11, the spherical portion 31a of the camera holder 14 is brought into contact with the holding wall 40 while the lens 5 is exposed in the camera window 4, and the shaft portion of the operation shaft piece 32 is further inserted into the groove 41 to rotate the shaft portion. After the 33 is inserted into the shaft support wall 42, the front case 2 and the rear case 3 are assembled to be attached to the main body case. Then, in the mounted state, the operation knob 32a of the operation shaft piece 32 is exposed in the operation window 17. Further, the adjusting protrusion 62 of the angle adjusting member 16 is engaged with any one of the adjusting recesses 53, and the camera 11 is held at a predetermined pan / tilt angle by the elastic force of the elastic portion 63. .. Therefore, by operating the operation knob 32a from the front side of the main body case and changing the adjustment recess 53 with which the adjustment protrusion 62 engages against the elastic force of the elastic portion 63, the pan / tilt angle of the camera 11 can be adjusted. It can be adjusted to a desired angle, and the camera 11 can be held at the changed pan / tilt angle. For example, the posture in which the camera faces substantially the front as shown in FIG. 2 can be adjusted to the posture in which the camera 11 faces the upper right as shown in FIG. 8 or the posture in which the camera 11 faces the lower left as shown in FIG. Moreover, the camera 11 can be held in that posture.

According to the intercom slave unit 1 having the above configuration, the operation shaft piece 32 is provided on the left side of the camera holder 14 and the rotation shaft portion 33 is provided on the right side, respectively, and is provided at the tip of the operation shaft piece 32. The camera 11 is pivotally supported in the main body case in such a way that the operation knob 33 is exposed inside the operation window 17. Further, as the structure of the shaft support, a groove 41 extending in the front-rear direction and a shaft support wall 42 are adopted, and the shaft portion and the rotation shaft portion 33 of the operation shaft piece 32 are allowed to move in the front-rear direction. On the other hand, an angle adjusting member 16 having an adjusting protrusion 62 projecting rearward on the center line of the lens 5 is fixed to the rear surface of the camera substrate 15, and at a position facing the rear side of the adjusting protrusion 62 in the main body case. A spherically formed recess 52 that is recessed to the rear side is provided, and a plurality of adjustment recesses 53, 53 ... It is provided. Therefore, the imaging angle of the camera 11 can be adjusted in both pan and tilt directions by operating the operation knob 32a from the outside of the main body case and changing the adjustment recess 53 with which the adjustment protrusion 62 is engaged.

Further, as the angle adjusting member 16, the first screwed portion 64 for screwing to the lens holder 13 via the camera board 15 and the second screwed portion 64 for screwing to the camera holder 14 via the camera board 15. A base 61 having screwed portions 65 on the left and right sides is provided, and the base 61 and the adjusting protrusion 62 are connected by an elastic portion 63 that can be elastically deformed. Therefore, since a separate member for holding the engaged state between the adjusting protrusion 62 and the adjusting recess 53 is not required, the camera 11 can be easily held at a desired pan / tilt angle, and the intercom slave unit 1 can be easily held. The configuration can be simplified, and the size of the intercom slave unit 1 can be reduced.

The intercom device according to the present invention is not limited to the embodiment of the above embodiment, and the overall configuration of the intercom device as well as the configuration of the camera and the configuration related to the adjustment of the imaging angle thereof are also included. It can be appropriately changed as necessary without departing from the spirit of the present invention.

For example, in the above embodiment, the knob portion is exposed on the front surface of the main body case, but it may be configured to be exposed on the rear surface or the side surface of the main body case.
Further, the design can be appropriately changed as to which of the left and right shaft portions the knob portion is provided.
Further, in the above embodiment, the adjusting protrusion and the base are connected by an elastic portion so that a member for holding the camera in a predetermined posture is not required separately. Instead of adopting it, a member for holding the camera in a predetermined posture may be separately provided in the vicinity of the knob portion.

Furthermore, in the above embodiment, a plurality of adjusting recesses are densely provided vertically and horizontally (so that adjacent adjusting recesses are adjacent to each other) in a predetermined area in the recesses, but between the adjusting recesses. A plurality of adjustment recesses may be provided vertically and horizontally while keeping a slight distance from each other.
In addition, in the above embodiment, the intercom slave unit which is an example of the intercom device is described, but the present invention is suitably applied to other intercom devices such as the intercom master unit as long as the camera is provided. can do.

1 ... Interphone slave unit (interphone device), 2 ... Front case (main body case), 3 ... Rear case (main body case), 4 ... Camera window, 5 ... Lens, 11 ... Camera, 12 ... Lens barrel (holder member), 13 ... lens holder (holder member), 14 ... camera holder (holder member), 15 ... camera board, 16 ... angle adjustment member, 17 ... operation window, 32 ... Operation shaft piece (shaft part), 32a ... operation knob (pinch part), 33 ... rotation shaft part (shaft part), 41 ... groove (shaft support part), 42 ... shaft support wall (shaft support part) ), 51 ... Shaft support, 52 ... Recessed, 53 ... Adjusting recess, 61 ... Your part, 62 ... Adjusting protrusion, 63 ... Elastic part.

Claims (2)

An intercom device in which a camera having a holder member having a lens and a camera substrate on which a control element is mounted and fixed to the rear surface of the holder member is mounted in the main body case so as to be able to take an image of the front of the main body case. And
Shaft portions protruding outward from the left and right are provided on both the left and right sides of the holder member, and a knob portion is provided at the tip of the shaft portion on either the left or right side, and is opened on the surface of the main body case. The knob is exposed in the operation window.
Further, on the rear surface of the camera substrate, an angle adjusting member having an adjusting protrusion protruding rearward on the center line of the lens is fixed, while the angle adjusting member is fixed.
In the main body case, a shaft support portion that supports the left and right shaft portions so as to be movable in the front-rear direction is provided, and at a position facing the rear side of the adjustment protrusion in the main body case. There is a spherically formed recess that dents to the rear side,
Further, in the recess, a plurality of adjusting recesses with which the adjusting protrusion can be engaged are provided up, down, left and right within a predetermined area.
An intercom device characterized in that the pan / tilt angle of the camera can be changed by operating the knob portion from the outside of the main body case to change the adjustment recess with which the adjustment protrusion engages. .. The angle adjusting member has a base portion fixed to the rear surface of the camera substrate, and the adjusting protrusion is connected to the base portion via an elastic portion having elasticity.
The intercom device according to claim 1, wherein an engaged state between the adjusting protrusion and the adjusting recess is maintained by the elastic force of the elastic portion.

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