JP7170569B2 - intercom equipment - Google Patents

Description

The present invention relates to an intercom device equipped with a camera for taking an image of a visitor, for example.

2. Description of the Related Art Conventionally, an intercom device such as an intercom slave unit installed at an entrance, for example, is equipped with a camera for capturing images of the surroundings and visitors. In addition, as a camera, by holding the lens in a lens holder that rotates about the horizontal axis, the imaging angle in the vertical and horizontal directions, that is, the pan and tilt angle, can be adjusted according to the installation environment of the intercom device. An intercom device that employs a configuration that can be used has also been devised. In an interphone device equipped with a camera capable of adjusting such an imaging angle, a lens holder and a camera substrate on which an imaging element is mounted are screwed, as described in Patent Document 1, for example. It was unified by doing.

Japanese Unexamined Patent Application Publication No. 2017-34300

However, in an intercom device equipped with a camera that can adjust the imaging angle, the structure for adjusting the imaging angle and the waterproof structure around the camera are complicated, so there are problems such as an increase in the number of parts. put away.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an intercom device with a rationalized structure.

In order to achieve the above object, the present invention provides a camera substrate having an image sensor mounted therein, a base portion fixed to the front surface of the camera substrate, and a base portion, which are arranged in a main body case formed by assembling a front case and a rear case. A lens member having a lens barrel projecting forward from the base and a lens held in the lens barrel, and a lens member disposed on the front side of the camera board, capable of housing the lens barrel and exposing the lens at the front. A lens holder with a lens hole for adjusting the angle, a main body arranged on the rear side of the camera board, and an operation knob protruding rearward from the main body and protruding from the rear surface of the main body case to the outside of the main body case for angle adjustment. A camera provided with a member is installed so as to be able to adjust the pan/tilt angle, and the intercom device is capable of imaging the front of the main body case with the camera, and the lens holder protrudes rearward through the camera substrate. A plurality of guide projections are provided, the tips of the guide projections can be inserted into the main body of the angle adjustment member, and the guide recess has a deeper bottom than the amount of projection of the guide projection toward the rear side of the camera substrate. The same number of protrusions are provided, and when the main body is arranged on the rear side of the camera board, a gap is formed between the tip of each guide protrusion and the bottom of the guide recess, while a synthetic resin molded into a ring shape A packing made of steel is attached to the lens barrel, and when the lens barrel is stored in the lens holder, the packing is sandwiched between the lens holder side and the front surface of the base from the front and back. The lens holder is in close contact with the inner surface of the front case, the angle adjustment member is in close contact with the inner surface of the rear case, and the camera is sandwiched between the front case and the rear case.

According to the present invention, the lens holder is provided with a plurality of guide projections that penetrate the camera substrate and protrude rearward, the tips of the guide projections can be inserted into the main body of the angle adjustment member, and The same number of guide recesses as the guide protrusions are provided, the bottom of which is deeper than the amount of protrusion to the rear side of the camera board, and when the angle adjusting member is arranged on the rear side of the camera board, there is a gap between the tip of each guide protrusion and the bottom of the guide recess. A gap was formed in the In addition, a ring-shaped synthetic resin packing is attached to the lens barrel, and when the lens barrel is stored in the lens holder, the packing is sandwiched between the lens holder side and the front surface of the base from the front and back. I made it to be. The elastic force of the packing brings the lens holder into close contact with the inner surface of the front case, and the angle adjustment member close with the inner surface of the rear case, so that the camera is sandwiched between the front case and the rear case. did. That is, the lens holder and the camera substrate are not integrated by screwing or the like as in the conventional case. Therefore, it is possible to press the angle adjusting member against the inner surface of the rear case by utilizing the packing which conventionally had only the function of pressing the lens holder against the inner surface of the front case. Therefore, one packing can waterproof not only the lens holder side but also the angle adjustment member side and maintain the attitude of the angle adjustment member, and the structure of the intercom device can be streamlined.

Fig. 2 is a perspective explanatory view showing the intercom slave unit from the front side; Fig. 2 is a perspective explanatory view showing the intercom slave unit in a disassembled state from the front side; Fig. 2 is a perspective explanatory view showing the intercom slave unit in a disassembled state from the rear side; Fig. 2 is a perspective explanatory view showing a vertical cross section of a camera portion of the intercom cordless handset; Fig. 10 is a perspective explanatory view showing a horizontal cross section of a camera portion of the intercom slave device;

An interphone slave 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 intercom cordless handset 1 from the front side. FIG. 2 is a perspective explanatory view showing the intercom slave unit 1 in a disassembled state from the front side. FIG. 3 is a perspective explanatory view showing the intercom slave unit 1 in a disassembled state from the rear side. FIG. 4 is a perspective explanatory view showing a vertical cross section of the camera 11 portion of the intercom cordless handset 1. As shown in FIG. FIG. 5 is a perspective explanatory view showing a horizontal cross section of the camera 11 portion of the intercom cordless handset 1. As shown in FIG.

The interphone slave unit 1 has 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 9 attached to the front surface of the main body case. A camera window 5 is opened in the upper front portion of the body case, and a camera 11 is installed in the body case so that a lens 12a is exposed in the camera window 5. - 特許庁On the right side of the camera window 5, a microphone section 6 for calling is provided. Further, on the lower side of the camera window 5, a call button 7 operated by a visitor to call a resident and a speaker section 8 for making a call are provided. Such an intercom slave unit 1 is installed on the wall surface or the like of the entrance of the dwelling unit. is called, and the camera 11 is operated to image the visitor. In addition, 4 is a camera cover that covers the camera window 5 . Also, the video imaged by the camera 11 is displayed on the monitor of the intercom base unit. Further, 10 is a mounting base for mounting the intercom cordless handset 1 on a wall surface.

Here, the camera 11, which is the essential part of the present invention, will be described.
The camera 11 includes a lens member 12 having a lens 12a, a camera substrate 13 having the lens member 12 fixed to its front surface, a lens holder 14 holding the lens member 12 on the front side of the camera substrate 13, the lens holder 14 and the lens member. 12, and an angle adjustment member 16 arranged behind the camera substrate 13. - 特許庁The lens member 12 has a base portion 12b and a barrel portion 12c projecting forward from the base portion 12b, and the lens 12a is held in the barrel portion 12c. The lens member 12 is integrated with the camera board 13 by screwing to the board fixing parts 12d, 12d provided on the base part 12b.

The camera substrate 13 has various elements such as an imaging element mounted thereon, and has three round holes 17, 17, . . . is perforated. The diameter of each round hole 17 is substantially the same as the diameter of a guide projection 25 of the lens holder 14, which will be described later, so that the guide projection 25 can be inserted.

The lens holder 14 has a dome-shaped synthetic resin main body 21 that bulges forward, and a lens hole 22 is formed in the front center of the main body 21 to expose the lens 12a. It is Further, the surface of the peripheral surface portion 21a extending rearward from the front portion of the main body 21 is formed as a spherical surface having a circular maximum diameter at the rear edge. On the other hand, a holding cylinder 23 through which the lens barrel portion 12c of the lens member 12 can be inserted projects from the opening edge of the lens hole 22 toward the rear (inside the main body 21). Axial portions 24 projecting upward and downward are provided at the rear end edges of the upper portion and the lower portion of the main body 21, respectively. In addition, three guide protrusions 25, 25, . . .

The packing 15 is an elastic ring-shaped member made of synthetic resin. On the other hand, the outer diameter of the packing 15 is larger than the lens hole 22 of the lens holder 14 but smaller than the front portion of the lens holder 14 . The packing 15 can be accommodated in the lens holder 14 in a state in which it is attached to the lens barrel portion 12 c of the lens member 12 .

The angle adjustment member 16 has a cover-like main body 31 with a spherical surface and protruding rearward. Four positioning projections 33, 33 . . . Further, the angle adjusting member 16 has a rearwardly folded collar portion 31a provided on the outer peripheral edge thereof, and the guide projections 25 are provided on the front side at positions corresponding to the guide projections 25, 25 of the lens holder 14, respectively. Three guide recesses 34, 34, . The diameter of the guide recess 34 is approximately the same as the diameter of the guide projection 25 .

On the other hand, as a structure on the side where the camera 11 is installed, a support cylinder 41 projecting rearward from the opening edge of the camera window 4 is provided on the rear side of the front case 2 . The inner peripheral surface of the support cylinder 41 is formed into a spherical surface that allows the peripheral surface portion 21a of the lens holder 14 to come into close contact therewith. Further, above and below the camera window 4 are guide portions 42 that allow the shaft portions 24, 24 of the lens holder 14 to rotate and guide vertical movement, etc., when the camera 11 pans and tilts. 42 are provided. On the other hand, the rear case 3 is provided with an operation window 43 for projecting the operation knob 32 rearward of the main body case. In addition, a recessed receiving portion 44 that can come into close contact with the main body 31 of the angle adjusting member 16 is provided on the front surface of the rear case 3 around the operation window 43 . Furthermore, a large number of positioning recesses 45, 45 .

When installing the camera 11 in the body case, first, the lens member 12 and the camera substrate 13 are integrated, and the packing 15 is mounted around the lens barrel portion 12c. On the other hand, from the rear side of the front case 2, the lens holder 14 is attached by fitting the front portion of the main body 21 into the support cylinder 41 while engaging the shaft portions 24, 24 with the guide portions 42, 42. Then, from the rear side of the lens holder 14, the tip of the lens barrel portion 12c is fitted into the holding cylinder 23 while the guide projections 25, 25, . . . The packing 15 and the lens member 12 are housed inside. In this state, the packing 15 is sandwiched between the rear end of the holding cylinder 23 and the front surface of the base portion 12b of the lens member 12 from the front and rear. Also, although each guide protrusion 25 protrudes to the rear side of the camera board 13 , the amount of protrusion is shorter than the depth of the guide recess 34 .

Next, the tips of the guide protrusions 25, 25, . In this state, since the depth of the guide recess 34 is greater than the amount of projection of each guide projection 25 as described above, the peripheral edge of each guide recess 34 is in contact with the rear surface of the camera substrate 13 . . Finally, by assembling the rear case 3 to the front case 2 while protruding the operation knob 32 from the operation window 43, the camera 11 is installed in the main case.

When the camera 11 is installed as described above, the peripheral surface portion 21a of the main body 21 of the lens holder 14 is in close contact with the inner surface of the support cylinder 41, and the rear surface of the main body 31 of the angle adjusting member 16 is in close contact with the front surface of the receiving portion 44. The adjusting member 16 is sandwiched from the front and rear by the front case 2 and the rear case 3 in a state in which the positioning projections 33, 33, . . . . The close contact state, and thus the locking state between the positioning protrusion 33 and the positioning recess 45, is maintained by the elastic force of the packing 15 sandwiched between the rear end of the holding cylinder 23 and the front surface of the base portion 12b of the lens member 12. It is designed to prevent water from entering through the camera window 5 and the operation window 43 and to maintain the pan/tilt angle of the camera 11 .

Therefore, when it is desired to adjust the pan/tilt angle of the camera 11, the operation knob 32 of the angle adjustment member 16 is pinched, for example, to move the angle adjustment member 16 forward (main body case) against the elastic force of the packing 15. ) to release the locking state between the positioning protrusions 33, 33, . . . and the positioning recesses 45, 45, . The pushing of the angle adjusting member 16 is made possible by the clearance between the tips of the guide protrusions 25, 25, . . . and the bottoms of the guide recesses 34, 34, . Further, since the guide protrusions 25, 25 are inserted into the guide recesses 34, 34, the attitude of the lens holder 14 changes in conjunction with the attitude change of the angle adjustment member 16. As shown in FIG. Therefore, by changing the attitude of the angle adjustment member 16, the pan/tilt angle of the camera 11 can be adjusted to a desired angle. After that, if the pushing of the angle adjusting member 16 is released while maintaining that posture, the angle adjusting member 16 is again pressed against the inner surface of the rear case 3 by the elastic force of the packing 15, and the positioning projections 33, 33, . , and the pan/tilt angle is held as it is.

According to the intercom slave unit 1 having the above configuration, the lens holder 14 is provided with three guide projections 25, 25, . A main body 31 is provided with three guide recesses 34, 34 . 16 is arranged on the rear side of the camera substrate 13, a gap is formed between the tip of each guide protrusion 25 and the bottom of the guide recess 34. - 特許庁A ring-shaped packing 15 made of synthetic resin is attached to the lens barrel portion 12c of the lens member 12, and when the lens barrel portion 12c is housed in the lens holder 14, the packing 15 is placed behind the holding barrel 23. The end and the front surface of the base portion 12b of the lens member 12 are sandwiched from the front and rear. The elastic force of the packing 15 brings the lens holder 14 into close contact with the inner surface of the support cylinder 41 and the main body 31 of the angle adjustment member 16 into close contact with the front surface of the receiving portion 44 . and the rear case 3 from the front and rear. That is, the lens holder 14 and the camera substrate 13 are not integrated by screwing or the like as in the conventional case. Therefore, the angle adjustment member 16 can be pressed against the inner surface of the rear case 3 using the packing 15 which conventionally had only the function of pressing the lens holder 14 against the inner surface of the front case 2.例文帳に追加Therefore, one packing 15 can waterproof not only the lens holder 14 side but also the angle adjustment member 16 side, maintain the attitude of the angle adjustment member 16, and furthermore, maintain the pan/tilt angle of the camera 11. , the intercom slave unit 1 with a streamlined structure.

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

For example, in the above-described embodiment, the packing is sandwiched by the retaining cylinder provided in the lens holder. Also, the configuration of the lens holder for clamping the packing can be appropriately changed in design.
In addition, although the intercom slave unit has been described in the above embodiment, the present invention can also be suitably applied to other intercom equipment such as an intercom master unit and a group entrance unit, as long as the present invention is equipped with a camera. .

DESCRIPTION OF SYMBOLS 1... Intercom slave unit (interphone apparatus), 2... Front case, 3... Rear case, 5... Camera window, 11... Camera, 12... Lens member, 12a... Lens, 12b... Base Part 12c Lens barrel 13 Camera board 14 Lens holder 15 Packing 16 Angle adjusting member 17 Round hole 21 Body 21a Peripheral surface 22 Lens hole 23 Holding cylinder 25 Guide projection 31 Body 32 Operation knob 33 Positioning projection 34 Guide recess 41 Support cylinder 43 - Operation window, 44... Receiving part, 45... Positioning concave part.

Claims (1)

A camera board on which an imaging device is mounted, a base fixed to the front surface of the camera board, and a lens barrel projecting forward from the base are contained in a body case formed by assembling a front case and a rear case. , and a lens member having a lens held in the lens barrel, and a lens member disposed on the front side of the camera board, capable of accommodating the lens barrel, and having a lens hole in the front for exposing the lens. a lens holder arranged on the rear side of the camera board; and an angle adjustment member having an operation knob projecting rearward from the body and projecting out of the body case from the rear surface of the body case. A camera equipped with is installed so as to be able to adjust the pan/tilt angle, and the intercom device is capable of imaging the front of the main body case with the camera,
The lens holder is provided with a plurality of guide projections penetrating the camera substrate and protruding rearward, the tips of the guide projections can be inserted into the main body of the angle adjusting member, and The same number of guide recesses as the guide protrusions are provided, the bottom of which is deeper than the amount of protrusion of the guide protrusions toward the rear side of the camera substrate,
When the main body is arranged on the rear side of the camera substrate, a gap is formed between the tip of each of the guide projections and the bottom of the guide recess,
A ring-shaped packing made of synthetic resin is attached to the lens barrel portion. It is sandwiched from the front and back by
The elastic force of the packing brings the lens holder and the angle adjustment member into close contact with the inner surface of the front case and the inner surface of the rear case, respectively, and the camera is sandwiched between the front case and the rear case. An intercom device characterized by:

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