JP3184983B2 - TV door phone cord - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television door phone set mounted on a wall such as a gate or entrance of a house, and more particularly to an improved structure for mounting a monitor camera which can be adjusted in a variable direction. .

[0002]

2. Description of the Related Art In general, many monitor cameras provided in this type of TV door phone handset have a fixed orientation.
A type in which the direction can be changed by remote control from the indoor master unit side is also disclosed in, for example, Japanese Patent Application Laid-Open No. 62-38683. In this angle adjustment mechanism of a monitor camera capable of changing the direction, an intermediate frame is supported on a fixed frame by a motor so as to be capable of tilting left and right, for example, and a movable frame on which the monitor camera is mounted is supported by another motor so as to be tiltable vertically, for example. The direction of the monitor camera can be freely adjusted by arbitrarily operating both motors by a cross operation of a lever switch provided on the parent device side in the room.

[0003]

However, in the case where the TV door phone handset is mounted on a wall or the like of a house, such as a portal or entrance, the shape of the buried portion is JISC8.
There is a dimensional restriction according to 336 (accessory for embedded piping). For this reason, the size of the tilt angle adjusting mechanism of the above-described conventional monitor camera incorporated in the TV door phone slave unit is naturally limited, and the tilt angle cannot be made large. Therefore, when attaching the TV doorphone handset T, the mounting position of the TV doorphone handset T must be aligned with the face of the visitor (standard height), which is the center of the imaging range, as shown in FIGS. In some cases, the position may not be said to be a position suitable for the mounting position of the TV door phone handset T.

[0004] For example, the mounting height H of the TV door phone handset T is desirably the height of the chest of a person having a standard height in consideration of the push button operation of the handset T and the responsiveness of a microphone and a speaker. Further, as shown in FIG. 11, normally, TV door slave unit T is mounted to the right wall or the left wall W ₁ or right pillars of the door D, TV door slave unit by the entrance and back door of a building that time T narrower wall W ₁ mounted is, moreover might wall W ₂ protrudes to its neighbor, right in front side of this case visitors can so as not to touch the wall W ₂ TV door slave unit T Tends to stand at a position closer to the left from the image, and as a result, a problem such as being easily out of the imaging range occurs. In other words, with the diversification of demand, it is desired to mount the TV doorphone handset T at a position lower or higher than the face of a person of standard height, depending on the operability of the TV doorphone handset T and the mounting position. In some cases, the user wants to mount the camera slightly leftward or rightward from just in front of the visitor's face.

The present invention has been made in view of such a point. By improving the mounting structure of the monitor camera in the television door phone handset, the tilt angle adjusting mechanism built in with the monitor camera is small. It is an object of the present invention to be able to attach the slave unit to a position where an optimum imaging range is obtained in accordance with the operability of the slave unit and the situation of the attachment position despite the small adjustment angle range.

[0006]

A television door according to the present invention.
Honko instrument, as illustrated in FIG. 1, the main body case 1
And a monitor camera 3 and a camera support
Remote control of stand 8 and camera support 8 from parent device side
Built-in tilt angle adjustment mechanism A that can be adjusted freely
And an infrared emitting diode on the front of the camera support 8.
A circuit board 9 having a group of 10
9 has a monitor camera 3 attached to the front thereof.
The circuit board 9 is mounted on the support base 8 via the inclined mounting seat 34.
As a result, the monitor camera 3 moves
Vertically or vertically or horizontally with a certain inclination angle
It is supported and fixed.

[0007]

When the monitor camera 3 is tilted and fixed upward with respect to the camera support 8, it is possible to mount the slave unit at a position lower than the height of the face of a person of standard height. Conversely, when the monitor camera 3 is inclined downward and fixed to the camera support 8, it is possible to mount the slave unit at a position higher than the height of the face of a person of standard height. When the monitor camera 3 is tilted and fixed to the left or right with respect to the camera support 8, even if there is an obstacle on the right or left side, it is possible to attach the visitor's face to the center of the imaging range. In this manner, the monitor camera 3 which is attached in a predetermined direction in a tilted manner can be further tilt-adjusted to a desired angle around the mounting tilt angle by the tilt angle adjusting mechanism A.

[0008]

According to the present invention, by selecting one of the vertical and horizontal orientations of the monitor camera 3, the face of a person of standard height, which is the center of the imaging range, and the mounting position of the television doorphone handset It is convenient that the slave unit can be mounted at a position suitable for the operability of the slave unit, the situation of the mounting position, and the like without adjusting the position.

[0009]

1 to 8 show an embodiment of a television door phone handset according to the present invention, which is to be embedded in a hole formed in a wall of a gate post or an entrance. Is connected by wire. 2 and 3, a main body case 1 of the slave unit T is embedded in a wall surface, and a panel case 2 is screwed and connected to a front surface thereof. A solid-state image pickup device such as a CCD or a MOS type is provided on an upper part in the main body case 1.
A monitor camera 3 including a lens and the like is provided. A speaker 4 and a microphone 5 are accommodated in a lower portion of the main body case 1. A transparent window 6 facing the monitor camera 3 is attached to an upper portion of the panel case 2, and a push button 7 for calling a parent device is provided below the panel case 2. When the push button 7 is pressed, an image captured by the monitor camera 3 is displayed on a monitor television provided in the master unit for a predetermined period of time, and when the handset of the master unit is picked up, a telephone call becomes possible.

[0010] In FIGS. 1 and 3, the main body case 1
The monitor camera 3 is mounted via a circuit board 9 on the front surface of a camera support 8 whose attitude can be changed as will be described later, and a group of infrared light emitting diodes 10 is mounted on the circuit board 9 so that night visitors can receive infrared light. The image is illuminated by the irradiation and imaged.

[0011] In FIGS. 1 and 8, Monitaka the front
The circuit board 9 on which the camera 3 is mounted is supported and fixed to the camera support 8 by screws 33. At this time, the circuit board mounting portion of the camera support 8 is provided with the inclined mounting seat 34 inclined upward, for example, 8 °, so that the circuit board 9 is fixed on the camera support 8 in the 8 ° upward inclination. Will be. Accordingly, the monitor camera 3 is configured to have a tilt angle adjusting mechanism A, which will be described later, centered upward at 8 ° with respect to the vertical plane of the slave unit mounting position.
To tilt up and down. (A) of FIG.
Indicates the mounting state of the slave unit T, and its mounting height H
Can be mounted at a position lower than the height of the face of a person of standard height, which is the center of the imaging range, at approximately the height of the chest. FIG.
(B), on the contrary, the monitor camera 3 is fixed on the camera support base 8 in a downwardly inclined posture, whereby the mounting height H of the slave unit is higher than the height of the face of a person of standard height. Can also be mounted at a higher position.

As described above, the camera support 8 on which the monitor camera 3 is mounted in an upward or downward direction in advance is arbitrarily changed in its orientation via a tilt angle adjusting mechanism A described below by remote control from the master unit. Can be adjusted. The detailed structure will be described below with reference to FIGS. 1, 3 to 7. FIG.
In FIG. 4 and FIG. 4, a drive case 11 is provided inside the main body case 1, and a ball fulcrum 13 is provided at the front end of a column 12 erected on the front surface of the drive case 11. On the other hand,
Near the center of the back surface of the camera support 8, a ball seat 14 is provided at the center on the optical axis of the monitor camera 3, and the ball seat 14 is fitted to the ball fulcrum 13 so that it cannot be pulled out. As a result, the camera support 8 can be tilted up and down around a horizontal axis XX passing through the center of the ball fulcrum 13 as shown in FIG. 5, and can be tilted left and right around a vertical axis YY. . In order to prevent the camera support 8 from rotating around the camera optical axis, projections 15 projecting up, down, left, and right of the ball fulcrum 13 are engaged with notches 16 formed in the ball seat 14.

In FIG. 4, two through-holes 17 are provided on the front surface of the drive case 11 directly below and to the left of the column 12.
And a push-pull rod 18 is projected from each through hole 17 so as to be able to advance and retreat forward and backward, and a ball fulcrum 20 provided at the tip of each push-pull rod 18 is formed on the back surface of the camera support 8. Is fitted and connected. The projection 21 provided at each ball fulcrum 19 engages with a notch 22 formed in each ball seat 20 to prevent the rotation of each push-pull rod 18 around the axis.

In FIG. 5, two DC motors 23 for independently driving the push-pull rods 18 forward and backward are installed in the drive case 11 in a lateral direction, and the output of each motor 23 is a worm 24 and a worm wheel. 25, gear 26,
And a push-pull rod drive gear 28 via an intermediate gear 27
Is transmitted to the deceleration.

In FIG. 1 and FIG. 6, a push-pull rod drive gear 28 is formed of plastic, and has a support shaft 30 at the center of a cylindrical boss 29 integrally formed therewith.
The hollow shaft portions of the push / pull rods 18 are slidably inserted and supported on the support shaft 30 in the front-rear direction. A thread portion 31 is formed on the outer periphery of each push-pull rod 18, and the cylindrical boss 29 is formed.
The push-pull rod drive gear 28 is provided with three pawls 32 that engage with the screw portions 31 so as to be cantilevered and elastically deformable.
Is rotated in the forward or reverse direction to rotate the claw 32, and the push-pull rod 18, whose rotation has been prevented, is relatively screw-fed and moves forward and backward.

In the figure, the drive structure of the push-pull rod 18 for tilting vertically downward is shown, but the drive structure of the push-pull rod 18 for tilting upper right and left is the same structure.

The camera support 8 tilts up and down or left and right about the center ball fulcrum 13 by the advance and retreat of each of the two push-pull rods 18, and the direction of the monitor camera 3 is centered on the mounting tilt angle. It can be changed up and down or left and right.

FIG. 9 shows another embodiment. In this slave unit T, the inclination mounting seat 34 of the camera support 8 is inclined to the left, for example, by 4 °, and the circuit board 9 is mounted on the camera support. It is fixed to the stand 8 with screws 33 at an inclination of 4 ° to the left. Accordingly, the monitor camera 3 has a structure in which the monitor camera 3 tilts left and right about the left side 4 ° with respect to the vertical position of the slave unit mounting portion. Although not shown, the monitor camera 3 may be fixed on the camera support 8 to the right, for example, at an angle of 4 °.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of a drive unit of a camera support.

FIG. 2 is a perspective view of a driving unit of the camera support base.

FIG. 3 is an overall vertical side view.

FIG. 4 is an overall perspective view of a TV door phone handset.

FIG. 5 is a front view of a driving unit of the camera support base.

FIG. 6 is an exploded perspective view showing a push-pull rod and its driving gear.

FIG. 7 is a rear view of the camera support base.

FIG. 8 is a vertical sectional side view of the television doorphone slave unit in an attached state.

FIG. 9 is a cross-sectional plan view showing a TV door phone handset according to another embodiment in an attached state.

FIG. 10 is a longitudinal sectional side view of a conventional television door phone handset in an attached state.

FIG. 11 is a cross-sectional plan view of a conventional television doorphone handset in an attached state.

[Explanation of symbols]

 Reference Signs List 3 monitor camera 8 camera support base 33 screw 34 tilt mounting seat A tilt angle adjustment mechanism

Claims (1)

(57) [Claims] 1. A monitor camera 3 in a main body case 1 .
A camera support base 8 this was supported and fixed, camera support base 8
And a tilt angle adjustment mechanism A that allows the orientation of the camera to be freely adjusted by remote control from the parent device side.
A circuit board 9 having a monitor camera 3 is mounted on a front surface of the circuit board 9.
Then , the circuit board 9 is attached to the camera support 8 via the inclined mounting seat 34.
A television doorphone slave unit wherein the monitor camera 3 is supported and fixed vertically and vertically or horizontally and horizontally with a certain inclination angle with respect to the camera support base 8 by being attached .