Intercom equipment

Abstract

To enable a pan / tilt operation even after an implementation.SOLUTION: A camera 2 housed in a case main body 10 formed by combining a front case 11 and a rear case 12, includes: a front side camera frame 23 contacted to the front case 11; and a rear side camera frame 24 contacted to the rear case 12. The front side camera frame 23 and the rear side camera frame 24 include a slide surface formed by one part of a spherical surface having the same center, and can perform a pan / tilt operation in a state of being nipped by the front case 11 and the rear case 12. The camera provides a communication rod 25 connected to an angle adjustment member 3 performing the pan / tilt operation of the camera 2 to the rear side camera frame 24, and in the angle adjustment member 3, a shaft is arranged toward a vertical direction, and two rod-like operation rods 31 of which each end part is exposed from the front case 11, and a transmission member 33 that transmits an angle adjustment operation by each operation rod 31 to the communication rod 25 are provided. By operating each end part exposed from the front case 11 of the operation rods 31, the pan / tilt operation of the camera 2 can be made.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an intercom device equipped with a camera for capturing an image of a visitor. [Background technology]

[0002] 2. Description of the Related Art Intercom devices, such as a doorbell unit that is installed at an entrance or the like to allow a visitor to call a resident, are commonly equipped with a camera for capturing an image of the visitor. Some intercom devices equipped with this camera are also capable of panning and tilting the camera. For example, in Patent Document 1, an operation knob for panning and tilting the camera is provided on the back of the device case, making it possible to adjust the camera orientation to suit the installation environment. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-49989 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional intercom devices that allow camera pan / tilt operation have controls on the back of the case, which prevents rainwater and other water from entering through gaps in the controls, as described above. Naturally, this meant that adjustments were not possible after installation. However, even after adjustments were made, there were still requests to change the camera's orientation after installation.

[0005] In view of the above, an object of the present invention is to provide an intercom device that allows pan and tilt operations of the camera even after installation. [Means for solving the problem]

[0006] In order to solve the above problem, the invention of claim 1 is an intercom device in which a pan / tilt operable camera is housed within a case main body formed by combining a front case and a rear case, the camera having a front camera frame that abuts against the front case and a rear camera frame that abuts against the rear case, the front camera frame and the rear camera frame having sliding surfaces that are part of a sphere having the same center, allowing pan / tilt operations while sandwiched between the front case and the rear case, one of the front camera frame or the rear camera frame having a connecting rod that is connected to an angle adjustment member that pans / tilts the camera, the angle adjustment member having two rod-shaped operating rods, a first operating rod and a second operating rod, with their tips exposed from the front case and their axes positioned in the depth direction of the case main body, and a transmission member that transmits pan / tilt operations of the camera by the two operating rods to the connecting rod, The transmission member is made of a single member having one end with a fulcrum portion rotatably held by the case body and the other end with a connecting portion with the connecting rod, and is swingable around the fulcrum portion, the connecting rod and the transmission member are arranged in a straight line, and the connecting rod and the transmission member form a drive shaft for panning / tilting the camera, and the first operating rod and the second operating rod have spiral grooves formed on their sides that engage with the transmission member, The exposed tip of the control rod rotate By operating The connecting rod is operated via the transmission member, It is characterized by being able to pan / tilt the camera. With this configuration, the camera can be panned and tilted by operating the tip of the control rod exposed from the front case. This means that panning and tilting can be performed from the front of the case, and the camera angle can be adjusted after installing the intercom device without removing the case.

[0007] The invention of claim 2 is the configuration of claim 1, wherein the drive shaft is disposed in the left-right direction parallel to the front surface of the case body. 、 The first operating rod engages with the transmission member above or below the transmission member that has come off the drive shaft, and when the first operating rod is rotated around its axis, the engagement portion with the transmission member moves back and forth in the depth direction of the case body, rotating the transmission member around the drive shaft and tilting the camera.On the other hand, the second operating rod engages with the transmission member on the drive shaft, and when the second operating rod is rotated around its axis, the engagement portion with the transmission member moves back and forth, causing the transmission member to swing back and forth in the depth direction around the fulcrum portion, and the connecting rod is linked to this swing and panning the camera. According to this configuration, The camera tilts when the first control rod is operated, and pans when the second control rod is operated.

[0008] The invention of claim 3 is the structure of claim 1, wherein the drive shaft is disposed in a vertical direction parallel to the front surface of the front case. 、 The first operating rod engages with the transmission member on the left or right side of the transmission member that has come off the drive shaft, and when the first operating rod is rotated around its axis, the engagement part with the transmission member moves back and forth in the depth direction of the case body, rotating the transmission member around the drive shaft and causing the camera to pan.On the other hand, the second operating rod engages with the transmission member on the drive shaft, and when the second operating rod is rotated around its axis, the engagement part with the transmission member moves back and forth, causing the transmission member to swing back and forth in the depth direction around the fulcrum part, and the connecting rod is linked to this swing and causing the camera to tilt. According to this configuration, The camera pans when the first control rod is operated, and tilts when the second control rod is operated. [Effects of the Invention]

[0009] According to the present invention, the camera can be panned and tilted by operating the tip of the control rod exposed from the front case. This means that panning and tilting can be performed from the front of the case, and the camera angle can be adjusted even after the intercom device has been installed. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is an exploded perspective view showing an example of a front door slave unit which is an intercom device according to the present invention. [Figure 2] FIG. 2 is an enlarged view of a member of part A in FIG. [Figure 3] FIG. 3 is a front perspective view of the member of FIG. 2. [Figure 4] FIG. 10 is an exploded view of part A, illustrating the camera and angle adjustment member separated. [Figure 5] FIG. [Figure 6] 10A and 10B are partial rear views of the front case, in which (a) shows the state in which the camera and angle adjustment member are attached, and (b) shows the state in which the member is removed. [Figure 7] FIG. [Figure 8]FIG. 10 is an explanatory diagram of the camera angle adjustment mechanism, showing the camera facing forward. [Figure 9] FIG. 10 is an explanatory diagram of the angle adjustment mechanism when the camera is panned. [Figure 10] FIG. 10 is an explanatory diagram of the angle adjustment mechanism when the camera is tilted. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. Fig. 1 is an exploded perspective view showing an example of a front door slave unit, which is an intercom device according to the present invention. In the front door slave unit 1, a case body 10 is formed by a front case 11 and a rear case 12, and the front surface of the front case 11 is covered with a decorative panel 13 when in use. Reference numeral 2 denotes a camera, and 3 denotes an angle adjustment member that constitutes an angle adjustment mechanism for adjusting the angle of the camera 2, i.e., for panning and tilting the camera 2. The case body 10 of the entrance unit 1 incorporates circuits for transmitting the images captured by the camera 2 to the outside, generating call signals in response to call operations, a microphone and speaker for visitors to talk to residents, etc., but these are omitted here.

[0012] 2 and 3 are enlarged views of part A in Fig. 1, and are enlarged views of the camera 2 and the angle adjustment member 3. Fig. 2 is an enlarged perspective view seen from the rear, and Fig. 3 is an enlarged perspective view seen from the front. 2 and 3, camera 2 has a front camera frame 23 equipped with a lens 22 and having a spherical surface 23a around its periphery, disposed in front of a substrate 21 on which an imaging element is mounted. A rear camera frame 24 equipped with a spherical surface 24a is disposed behind substrate 21. The center of the spherical surface 23a formed on the front camera frame 23 and the center of the spherical surface 24a formed on the rear camera frame 24 are configured to coincide with each other, and both spherical surfaces 23a, 24a form a sliding surface.

[0013] The front case 11 and the rear case 12 are formed with ring-shaped contact portions 41, 51 (shown in FIGS. 6 and 7) that are made up of parts of the spherical surfaces against which the spherical surfaces 23a, 24a of the camera 2 contact. As a result, when the camera 2 is housed in the case body 10, the camera 2 is slidably sandwiched between the front case 11 and the rear case 12, and in this sandwiched state the camera 2 can be rotated. In other words, in this sandwiched state the camera 2 can pan / tilt.

[0014] Figure 4 is an explanatory diagram of an exploded view of the angle adjustment member 3. As shown in Figure 4, the angle adjustment member 3 is made up of three members: two operating rods 31 (a first operating rod 31a and a second operating rod 31b) and a transmission member 33. Operation by the operating rods 31 is transmitted to the camera 2 by the transmission member 33. The camera 2 is provided with a connecting rod 25 that is connected to the transmission member 33, and the connecting rod 25 protrudes laterally from the rear camera frame 24. This connecting rod 25 has a shaft 25a that extends laterally, that is, in the radial direction, from the center of the rear camera frame 24, and has at its tip an orthogonal bar 25b that extends vertically and perpendicular to the shaft 25a, and the entire connecting rod 25 is formed in a T-shape.

[0015] The transmission member 33 has at one end a spherical holding portion 33a that is held at a predetermined position on the case body 10, and is configured to rotate around the holding portion 33a. It also has a connecting portion 33b that connects to the connecting rod 25, and an engaging protrusion 35 that engages with the operating rod 31. The holding portion 33a and the connecting portion 33b are connected by two parallel connecting pieces 33c, and a space for arranging the second operating rod 31b is formed between the holding portion 33a and the connecting portion 33b. The connecting portion 33b is formed to form a pair by extending the connecting piece 33c, and is formed to grip both ends of the orthogonal bar 25b of the connecting rod 25.

[0016] When assembled in the case body 10 and the camera 2 is facing forward, the holding portion 33a is arranged on an extension of the shaft body 25a of the connecting rod 25, and the shaft body 25a and the holding portion 33a are arranged in a straight line. This arrangement constitutes the drive axis M that pans and tilts the camera 2. This drive axis M is arranged in a horizontal direction parallel to the front surface of the case body 10, i.e., in the lateral direction.

[0017] The engagement protrusion 35 is made up of a first engagement protrusion 35a that engages with the first operating rod 31a and a second engagement protrusion 35b that engages with the second operating rod 31b. The first engagement protrusion 35a is centered on the holding portion 33a and protrudes upward in a direction perpendicular to the drive axis M. The second engagement protrusion 35b protrudes from the holding portion 33a on the drive axis M toward the camera 2. The two operating rods 31 have the same shape, and a spiral groove 36 is formed on the side to engage the engaging protrusion 35. By rotating the operating rod 31 around its axis, the engaging protrusion 35 engaged with the spiral groove 36 can be moved back and forth along the axis of the operating rod 31.

[0018] Fig. 5 is a perspective view of the front case 11, showing the state in which the operating rod 31 is inserted. As shown in Fig. 5, the front case 11 is provided with insertion holes 42 for inserting the operating rods 31 (first insertion hole 42a for inserting the first operating rod 31a and second insertion hole 42b for inserting the second operating rod 31b), and the operating unit 32, which is the tip of the operating rod 31 inserted from the rear, is exposed on the front surface of the front case 11. The operating unit 32 is a part that is operated when the angle of the camera 2 is to be changed.

[0019] The insertion hole 42 in the front case 11, through which the operating rod 31 is inserted, is formed slightly smaller in diameter than the tip of the operating rod 31. On the other hand, the operating portion 32 of the operating rod 31 is provided with a cross-shaped notch and is formed to expand in diameter toward the tip. Therefore, when inserting the operating rod 31, the operating portion 32 can be inserted by reducing its diameter, and after insertion, the inserted state is maintained in a rotatable state. The operating rod 31 can be easily rotated around its axis by operating the notch in the operating portion 32 with a Phillips or flathead screwdriver. Note that this operation is performed with the decorative panel 13 removed.

[0020] Fig. 6 is a partial rear view of the front case 11, showing the attached state of the angle adjustment member 3. Fig. 6(a) shows the attached state of the camera 2 and angle adjustment member 3, and Fig. 6(b) shows only the front case 11 with the camera 2 and angle adjustment member 3 removed. Fig. 7 is a partial front view of the rear case 12, showing the portion corresponding to the front case 11 shown in Fig. 6. As shown in Fig. 6, the front case 11 is provided with a housing portion 43 that houses the holding portion 33a, and as shown in Fig. 7, the rear case 12 is provided with a housing portion 53 that houses the holding portion 33a. When the front case 11 and the rear case 12 are stacked together to form the case body 10, the housing portions 43, 53 of both cases sandwich and hold the holding portion 33a.

[0021] 8 to 10 are explanatory diagrams of the angle adjustment mechanism for the camera 2, showing the state in which the camera 2 and angle adjustment member 3 are assembled to the front case 11. Fig. 8 shows the state in which the camera 2 faces forward, and in this state the engagement protrusion 35 is engaged at the middle position of the spiral groove 36 formed in the operating rod 31.

[0022] Figure 9 shows the state in which the first operating rod 31a is rotated from the state shown in Figure 8 to tilt the camera 2. Specifically, the first operating rod 31a is rotated in the direction indicated by arrow B1 to move the first engagement protrusion 35a rearward. This causes the transmission member 33 to rotate about the holding portion 33a. At this time, the transmission member 33 rotates about the drive shaft M, and in response to this movement, the connecting rod 25 also rotates, causing the camera 2 to point upward. This angle changes depending on the amount of rotation of the first operating rod 31a. When the first operating rod 31a is rotated in the opposite direction of the arrow B1, the camera 2 faces downward in the opposite direction.

[0023] FIG. 10 shows the state in which the second operating rod 31b is rotated from the state in FIG. 8 to pan the camera 2. Specifically, the second operating rod 31b is rotated in the direction indicated by arrow B2 to move the second engagement protrusion 35b rearward. This causes the transmission member 33 to rotate about the holding portion 33a. At this time, the transmission member 33 tilts rearward about the holding portion 33a from a state parallel to the front surface of the case body 10, and the connecting portion 33b moves rearward. As a result, the connecting rod 25 also moves rearward, and the angle of the camera 2 is changed to the right. When the second operating rod 31b is rotated in the opposite direction of the arrow B2, the camera 2 faces in the opposite direction, that is, leftward.

[0024] In this way, the camera 2 can be panned / tilted by operating the tip of the control rod 31 exposed from the front case 11. Therefore, panning / tilting can be performed from the front of the case body 10, and the angle of the camera 2 can be adjusted without removing the case after the intercom device has been installed. In addition, the camera 2 can be panned / tilted by the simple operation of rotating the control rod 31, and the camera 2 can be panned / tilted from the front of the case body 10 with a simple configuration in which one transmission member 33 is disposed between the camera 2 and the control rod 31. Furthermore, even if an insertion hole 42 is formed in the front case 11 to expose the operating rod 31, the front case 11 is covered with the decorative plate 13, so that rainwater and the like cannot get in.

[0025] In the above embodiment, the control rod 31 is disposed on the left side of the camera 2, but it may be disposed on the right side, or above or below the camera 2 instead of on the left or right. However, if disposed above or below, the first control rod 31a, which is operated for panning in the above embodiment, becomes the tilt operation member, and the second control rod 31b, which is operated for tilting, becomes the pan operation member. As in the above embodiment, the pan / tilt operation of the camera 2 can be performed by operating the tip of the control rod 31 from the front of the case body 10, and the angle of the camera 2 can be adjusted even after the entrance door unit 1 is installed. Furthermore, the installation location of the control rod 31 can be anywhere around the camera 2, making it easy to adjust the storage location with other components and effective for reducing the size of the case. Furthermore, although the connecting rod 25 is provided on the rear camera frame 24, it may be provided on the front camera frame 23. [Explanation of symbols]

[0026] 1··Entrance unit, 2··Camera, 3··Angle adjustment member, 10··Case body, 11··Front case, 12··Rear case, 23··Front camera frame, 24··Rear camera frame, 25··Connecting rod, 31··Operating rod, 32··Operating part, 33·Transmission member, 33a··Holding part (fulcrum part), 33b··Connecting part, 35··Engaging protrusion, 36··Spiral groove, 43··Storage part, 53··Storage part, M··Drive shaft

Claims

1. An intercom device in which a pan / tilt operable camera is housed in a case body formed by combining a front case and a rear case, the camera has a front camera frame that contacts the front case and a rear camera frame that contacts the rear case, the front camera frame and the rear camera frame having sliding surfaces that are formed of parts of spherical surfaces having the same center, and the camera is capable of panning and tilting while being sandwiched between the front case and the rear case; a connecting rod connected to an angle adjustment member for panning / tilting the camera, on one of the front camera frame and the rear camera frame; The angle adjustment member includes two rods, a first operating rod and a second operating rod, each of which has a tip exposed from the front case and an axis disposed in the depth direction of the case body; a transmission member that transmits pan / tilt operations of the camera by the two operation rods to the connecting rod, the transmission member is made of a single member having one end having a fulcrum portion rotatably held by the case body and the other end having a connecting portion with the connecting rod, and is swingable around the fulcrum portion; the connecting rod and the transmission member are arranged in a straight line, and the connecting rod and the transmission member form a drive shaft for panning / tilting the camera; The first operating rod and the second operating rod have spiral grooves formed on their side surfaces to engage with the transmission member, An intercom device characterized in that by rotating the exposed tip of the operating rod, the connecting rod is operated via the transmission member, thereby enabling pan / tilt operation of the camera.

2. The drive shaft is arranged in the left-right direction parallel to the front surface of the case body, The first operating rod engages with the transmission member above or below the transmission member that is disengaged from the drive shaft, and by rotating the first operating rod around its axis, the engaging portion with the transmission member moves back and forth in the depth direction of the case body, rotating the transmission member around the drive shaft, and tilting the camera. The intercom device described in claim 1, characterized in that the second operating rod engages with the transmission member on the drive shaft, and by rotating the second operating rod around its axis, the engagement portion with the transmission member moves back and forth, causing the transmission member to swing back and forth in the depth direction around the fulcrum portion, and the connecting rod is linked to this swing to pan the camera.

3. The drive shaft is arranged in a vertical direction parallel to the front surface of the front case, The first operating rod engages with the transmission member at the left or right side of the transmission member disengaged from the drive shaft, and by rotating the first operating rod around its axis, the engaging portion with the transmission member moves back and forth in the depth direction of the case body, rotating the transmission member around the drive shaft, and causing the camera to pan. The intercom device described in claim 1, characterized in that the second operating rod engages with the transmission member on the drive shaft, and by rotating the second operating rod around its axis, the engagement portion with the transmission member moves back and forth, causing the transmission member to swing back and forth in the depth direction around the fulcrum portion, and the connecting rod is linked to this swing, causing the camera to tilt.

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