JP2021099396A - Swivel part fall prevention tool for swivel camera device, and swivel camera device - Google Patents

Abstract

To provide a swivel part fall prevention tool for a swivel camera device that prevents fall of a swivel part of a swivel camera device, and the swivel camera device.SOLUTION: A swivel part fall prevention tool for a swivel camera device of an embodiment comprises: a column that is attached to a swivel part of a swivel camera device while projecting in a direction of a swivel axis of the swivel part; a grip part surrounds the column with a gap from the periphery of rotation of the column and allows rotation of the column; an arm part that is integral with the grip part at one end is fixed to a predetermined portion at the other end so as not to prevent the swivel of the swivel part; and an umbrella tool that is attached to the leading end of the column and covers at least part of the grip part from the leading end of the column. When a mechanism for supporting the swivel part is damaged and the swivel part comes off from a predetermined position of the swivel camera device, the umbrella tool is brought into contact with the grip part to prevent fall of the swivel part.SELECTED DRAWING: Figure 3

Description

An embodiment of the present invention relates to a swivel part fall prevention device and a swivel camera device of a swivel camera device.

In recent years, the use of swivel camera devices as one of the surveillance cameras has been increasing. The swivel camera device attaches the swivel camera device to a predetermined position, swivels the camera, and captures an image of the surroundings.

However, there is a concern that the swivel part of the swivel camera device may fall due to various large impacts at individual locations where the swivel camera device is installed, such as natural disasters such as earthquakes and typhoons, and vehicle collisions in traffic accidents. Has been done.

JP-A-2017-0211130 Japanese Unexamined Patent Publication No. 2012-010034 Japanese Unexamined Patent Publication No. 2000-307922

An object to be solved by the present invention is to provide a swivel part fall prevention device and a swivel camera device of the swivel camera device that prevent the swivel part of the swivel camera device from falling.

The swivel portion fall prevention device of the swivel camera device of the embodiment has a strut attached to the swivel portion of the swivel camera device so as to project in the direction of the swivel axis of the swivel portion, and a strut that surrounds the strut with a gap from the rotation circumference of the strut. A grip that allows the rotation of the camera, an arm that is fixed at a predetermined position so that one end is integrated with the grip and the other end does not interfere with the rotation of the swivel part, and a grip that is attached to the tip of the support column. An umbrella device that covers at least a part of the portion from the tip end side of the support column is provided. If the mechanism that supports the swivel portion is broken and the swivel portion deviates from the predetermined position of the swivel camera device, the umbrella device comes into contact with the grip portion to prevent the swivel portion from falling.

It is an external perspective view which shows the swivel part fall prevention device and the swivel camera device of the swivel camera device of 1st Embodiment. FIG. 5 is an external perspective view showing a swivel portion fall prevention device and a swivel camera device of the swivel camera device of the first embodiment, which are viewed from a different viewpoint from FIG. It is sectional drawing which shows the main part in the swivel part fall prevention device of the swivel part camera apparatus of 1st Embodiment. It is sectional drawing which shows the main part in the swivel part fall prevention device of the swivel part camera apparatus of 2nd Embodiment. It is a perspective view which shows the swivel part fall prevention device of the swivel camera device of 3rd Embodiment. It is a perspective view which shows the pedestal part, the turning part and the camera part of the swivel camera apparatus of 3rd Embodiment by disassembling.

Hereinafter, embodiments will be described with reference to the drawings.
(First Embodiment)
1 and 2 are external perspective views showing the swivel camera device of the first embodiment from different viewpoints. As shown in FIGS. 1 and 2,
The swivel camera device 2 includes a pedestal portion 11, a swivel portion 12, a camera unit 13, an illuminator 15, and a swivel portion fall prevention device 4, and the pedestal portion 12 and the swivel portion fall prevention device 4 are fixedly attached. It is attached to part 1. The pedestal portion 12 is fixed to the fixed mounting portion 1 by using bolts S1 to S4. The swivel portion 12 stands up from the pedestal portion 12 and can swivel horizontally. A camera unit 13 capable of vertically rotating is attached to one rotating side of the rotating unit 12.

In FIG. 1, the rotation axis of the swivel portion 12 that swivels horizontally (referred to as the first direction) is shown as the Y axis, and the swivel axis of the swivel portion 12 (camera unit 13) that swivels vertically (referred to as the second direction) is X. Shown as an axis. Normally, the Y-axis and the X-axis are orthogonal to each other, but are not limited. 1 and 2 show a state in which the image pickup direction of the camera unit 13 is oriented in the Z-axis direction (orthogonal to the X-axis and the Y-axis). A camera for capturing moving images and / or still images is built in the camera unit 13, and the camera can capture images through the glass of the window 132 with a view of the outside in the Z-axis direction, for example.

The camera unit 13 is arranged on one side of the swivel unit 12 in the first direction, and the illuminator 15 is optionally attached to the other side. The illuminator 15 is not essential.

Further, in this example, the camera unit 13 is arranged on one side of the swivel portion 12, but the arrangement is not limited to this, and the swivel portion 12 is located at the center of the swivel portion 12, for example, in the left-right direction (X-axis direction). The camera unit 13 may be integrally built in and provided. Also in this case, the camera unit 13 is attached so as to be able to rotate in the vertical direction. The vertical rotation of the camera unit 13 is not essential.

Although not shown, a first motor for rotationally driving the swivel portion 12 in the y1 or y2 direction around the Y axis is built in the swivel portion 12, and the camera unit 13 is driven by the X axis. A second motor that rotates and drives in the x1 or x2 direction is built in. As can be seen from FIG. 2, a connector 111 for giving a power supply and a control signal to the first motor and the second motor is provided on the pedestal portion 11. Further, a connector 112 for supplying a power supply and a control signal to the camera of the camera unit 13 and taking out an image pickup signal from the camera is also provided in the pedestal unit 11.

A support column 321 is provided upright along the axis (Y axis) of the swivel portion 12 on the upper portion of the outer cover 121 of the swivel portion 12. That is, a mounting bracket (mounting member) 310 for mounting the support column 311 is fixed to the upper surface of the cover 121 by screws 311 and 312. The base end portion of the support column 331 is fixed to the mounting bracket 310 by screwing, bolting, or welding.

A thread groove is formed in the upward direction of the support column 331, and a nut 333 can be screwed into the thread groove to attach and fix the umbrella device 340 described later. Before the umbrella device 340 is attached, the support column 331 penetrates the through hole of the grip portion 341.

FIG. 3 shows a main part of the first embodiment of the swivel part fall prevention device 4. The grip portion 341 is, for example, cylindrical and surrounds the support column 331 with a gap from the circumferential surface of the support column 331 so that the support column 331 can rotate, and the support column 331 shifts in the radial direction more than the range of the enclosure. You can limit what you do. Further, with respect to the side portion of the grip portion 341, for example, one end of the pipe-shaped arm portion 342 is fixed by welding, for example, and is integrated with the grip portion 341. After extending in the direction away from the turning portion 12 so as to allow the horizontal turning of the portion 13, the portion 13 is curved and extends in the direction of the pedestal portion 11, for example, and the tip is fixed to the fixed mounting portion 1. The location where the other end of the arm portion 342 is fixed is not limited to the fixed attachment portion 1, and can be arbitrarily selected depending on the installation location of the swivel camera device and the surrounding environment. For example, the other end of the arm portion 342 can be fixed by utilizing a peripheral portion whose position is stable and strong, such as a wall of a building or an iron pillar.

The tip of the support column 331 protruding from the grip portion 342 is processed as a bolt portion 331a. An umbrella device 340 is screwed and attached to the bolt portion 331a. That is, the umbrella device 340 has a nut portion 340a formed at the center position thereof, and the nut portion 340a is screwed into the bolt portion 331a and stopped at, for example, the stopper portion 331b. Further, a nut 333 is screwed from the tip of the support column 331 to tighten and fix the umbrella device 340. As a result, when the support column 331 rotates, the umbrella device 340 and the nut 333 also rotate together.
The umbrella device 340 forms a dome portion that covers the edge of the grip portion 341 when viewed in cross section from the side. The end of the grip portion 341 and a part of the dome portion overlap each other in the axial direction and have an overlap width W, so that pride and water do not enter the gap between the grip portion 341 and the support column 331. .. The umbrella device 340 is not necessarily limited to the dome shape, and may cover at least a part of the grip portion 341 from the tip end side of the support column 331 so that an opening or a slit is provided in the ceiling portion of the dome. Just do it. For example, it can be installed in a room such as a clean room having a simpler structure and higher airtightness. In this case, the umbrella device 340 does not need to prevent the intrusion of rainwater and dust.

In the design of the above device, it is preferable that the axis Y of the support column 331 and the rotation axis Y of the swivel portion 12 match, but it is not always necessary to match them. For example, when the inside of the grip portion 341 is frozen due to dew condensation, snow, or the like, if the axis of the support column 331 is slightly deviated from the axis Y, the ice may be crushed and the removing ability may be enhanced. Further, a screw groove having a gentle slope may be formed on the outer periphery of the support column 331 to prevent the accumulation of sand, soil and the like.

However, if the axes of the columns 331 are aligned with the axis Y, the motor that rotates the rotating portion 12 is not burdened, which is effective for obtaining durability, high-speed rotation, and the like.

In the above example, the arm portion 342 extends for a certain distance substantially at right angles to the axial direction of the grip portion 341, then curves in the direction of the pedestal portion 11, and the other end portion of the arm portion 342 is, for example, It is fixed to the fixed mounting portion 1. As described above, the arm portion 342 is provided with measures so as not to interfere with the turning operation of the turning portion 12 and the camera portion 13 due to the extension and bending from the grip portion 341. Further, in this embodiment, the other end of the arm portion 342 is fixed to the fixed mounting portion 1, but depending on the installation location of the swivel camera device 2, it may be fixed to a stable side wall of the building or the like. .. Therefore, the shape of the arm portion 342 can take various shapes depending on the installation location of the swivel camera device 2.

In the above example, the grip portion 341 is tubular and has a certain length, but the shape is not limited to this, and the support column 331 can be rotated and the support column 331 can be prevented from coming off. Just do it. Therefore, a thick disk type may be used. Further, the arm portion 342 is not limited to this shape as long as it can be fixed to the fixed portion while allowing the swivel portion 12 and the camera portion 13 to rotate horizontally.

Further, the names of the grip portion 341 and the arm portion 342 are not limited to these. For example, the grip portion 341 may be referred to as a through-hole portion, and the arm portion 342 may be referred to as a hanging metal fitting.

According to the first embodiment described above, the turning portion 2 is separated from the pedestal portion 11 due to, for example, a large earthquake, an explosion in the vicinity, or a vehicle colliding with a building or a steel tower in which the device is installed. Even if it is about to fall, the swivel portion fall prevention device 4 can prevent the fall. When the mechanism that supports the swivel portion 12 is broken and the swivel portion 12 deviates from the predetermined position of the swivel camera device 2, the umbrella device 340 comes into contact with the grip portion 341, so that the swivel portion 12 can be prevented from falling. That is, the grip portion 314 is in a posture of suspending or supporting the swivel portion 2 via the umbrella device 340 and the support column 331, and the swivel portion 2 can be prevented from falling.
Further, in the swivel portion 12, a motor for swiveling and driving the camera unit 13 around the axis X and a motor for swiveling and driving the swivel portion 12 itself around the axis Y are stored. Therefore, the weight of the swivel portion 12 is heavier than that of the other pedestal portion 11 and the camera portion 13. Therefore, the swivel portion fall prevention device of the embodiment is extremely effective.
Further, the posture of the swivel portion 2 when the swivel portion 2 is separated from the pedestal portion 11 is tilted with respect to the axis Y, and the tilt angle is the size of the gap between the grip portion 314 and the support column 331. Depends on. If the gap is increased, the inclination of the support column 331 is also increased, but if the gap is designed to be small, the inclination is also reduced.

By preventing the swivel portion 2 from falling off, if the electrical system (power supply to the camera and wiring system) is not broken, it is possible to continuously capture the captured image, although the field of view is different from the conventional one. ..

Further, by matching the rotation axis of the support column 331 with the rotation axis of the swivel portion 2, the swivel portion 2 can be swiveled in a well-balanced and stable manner under normal use conditions.

Further, if the dome-shaped umbrella device 340 is used, it is effective when it is installed outdoors where it is exposed to rain and snow.
(Second embodiment)
FIG. 4 is a cross-sectional view showing a main part of the swivel portion fall prevention device 4'of the swivel camera device of the second embodiment, and shows a case where the swivel portion 2 is separated from the pedestal portion 11. In the second embodiment, the shape of the umbrella device 340A is different from the shape of the second embodiment. The umbrella device 340 of FIG. 3 has a dome portion, whereas the umbrella device 340A of FIG. 4 has a substantially conical shape and has a nut portion 340a screwed into a bolt portion 331a of the support column 331 along its axis. Is forming. Then, the umbrella device 340A is arranged so that the conical tip is inserted into a part of the tip of the grip portion 341. Further, a nut 333 is screwed from the tip of the support column 331 to tighten and fix the umbrella device 340A. The base end portion of the support column 331 is integrated with the mounting bracket 310, and the mounting bracket 310 is fixed to the mounting portion protruding from the cover 121 of the swivel portion 12 by a screw 311.

In the second embodiment, the same effect as that of the first embodiment can be obtained, but since the shape of the umbrella device 340A is conical, the effect unique to the second embodiment can also be obtained. Since the conical shape has an action of always trying to align the axis of the support column 331 with the axis of the grip portion 341, it is designed so that the axis of the support column 331 and the rotating axis Y of the swivel portion 2 match. , There is a uniform load on the motor that swivels the swivel portion 2, and stable swivel, durability, and high-speed swivel can be obtained. Furthermore, it is possible to obtain a stable and blur-free shot image.

Further, for example, due to a large earthquake, an explosion in the vicinity, or a vehicle colliding with a building or a steel tower on which the device is installed, the mechanism supporting the swivel portion 12 is broken and the swivel portion 12 is moved from a predetermined position of the swivel camera device 2. Even when the umbrella device 340A is disengaged, the conical shape of the umbrella device 340A causes an action of aligning the axis of the support column 331 with the axis of the grip portion 341, that is, a force of returning to the original state. For this reason, if the turning portion fall prevention device 4'maintains a stable posture, the detached turning portion 2 can also take a posture closer to the posture before the detachment.
(Third Embodiment)
FIG. 5 is a perspective view showing a swivel portion fall prevention device of the swivel camera device of the third embodiment. FIG. 6 is a perspective view showing the pedestal portion, the swivel portion, and the camera portion of the swivel camera device of FIG. 5 in an exploded manner.
As shown in FIG. 5, the swivel portion fall prevention device 4 can be attached to the existing swivel camera device 2 having the fixed mounting portion 1, the pedestal portion 11, the swivel portion 12, and the camera portion 13. The existing swivel camera device 2 includes both a swivel camera device that has been installed at the site of use and an existing swivel camera device that has not been installed. Generally, a carrying handle 600 is attached to the existing swivel camera device 2 by using screws 311 and 312. Loosen these screws 311 and 312, remove the handle 600, and fix the swivel part fall prevention device 4 to the swivel part 12 using the screws 311 and 312 provided on the swivel part fall prevention device 4. The state before the handle 600 was attached to the existing swivel camera device 2 is shown by a dotted line. An existing screw other than the screw of the handle 600 may be used. Further, the swivel portion fall prevention device 4 is fixed to the fixed mounting portion 1 by using the nut 344. Since other configuration requirements are the same as those in FIGS. 1 and 2, the description thereof will be omitted.
FIG. 6 is a perspective view showing the pedestal portion, the swivel portion, and the camera portion of the swivel camera device of FIG. 5 in an exploded manner. Since each configuration is as described above, the description here will be omitted. The swivel camera device 2 shown in FIGS. 1 and 2 also has the same exploded view as that of FIG. 6 except for the handle 600.

From the above, in the third embodiment, the swivel portion fall prevention device 4 can be easily mounted by using the existing screws such as the mounting screws 311 and 312 of the handle 600 of the existing swivel camera device 2 as they are. .. By using the existing screws, the existing swivel camera device can be used as it is, whether it is the existing swivel camera device that has been installed at the site of use or the existing swivel camera device before installation. The load can be reduced and the cost can be reduced.
The existing mounting mechanism using screws 311 and 312 does not need to use screws 311 and 312, and has various mounting means using other parts such as bolts and nuts, tightening means, and fixing means by locking. There is a way.

From the above, by using the existing screws 311 and 312 of the existing swivel camera device 2 and attaching the swivel portion fall prevention device 4 or 4', the swivel portion can be easily and inexpensively prevented from falling.

According to at least one embodiment described above, a strut attached to the swivel portion so as to project in the direction of the swivel axis, a grip portion that surrounds the strut and enables rotation of the strut, and one end integrated with the grip portion and the other end. By having an arm portion fixed at a predetermined position and an umbrella device attached to the tip of the strut and covering at least a part of the grip portion from the tip side of the strut, the mechanism supporting the swivel portion is broken and the swivel portion is formed. When the swivel camera device deviates from a predetermined position, the umbrella device comes into contact with the grip portion to prevent the swivel portion from falling.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

1 ... Fixed mounting part, 2 ... Swivel camera device, 4 ... Swivel part fall prevention device, 11 ... Pedestal part, 12 ... Swivel part, 13 ... Camera part, 15 ... -Illuminator, S1 to S4 ... Bolt, 121 ... Cover, 132 ... Window, 310 ... Mounting bracket, 311, 312 ... Screw, 331 ... Support, 333, 344 ... Nuts, 340, 340A ... Umbrellas, 341 ... Grips, 342 ... Arms, 600 ... Handles.

Claims (12)

A strut attached to the swivel portion of the swivel camera device so as to project in the direction of the swivel shaft of the swivel portion.
A grip portion that surrounds the support column with a gap from the rotation circumference of the support column and enables the support column to rotate.
An arm portion in which one end is integrated with the grip portion and the other end is fixed at a predetermined position so as not to interfere with the rotation of the swivel portion.
An umbrella device attached to the tip of the support column and covering at least a part of the grip portion from the tip end side of the support column is provided.
When the mechanism that supports the swivel portion is broken and the swivel portion deviates from a predetermined position of the swivel camera device, the umbrella device comes into contact with the grip portion to prevent the swivel portion from falling.
Swivel camera device swivel part fall prevention device. The swivel portion fall prevention device of the swivel camera device according to claim 1, wherein the umbrella device has a dome shape in the gap. The swivel portion fall prevention device of the swivel camera device according to claim 1, wherein the umbrella device has a triangular pyramid shape in which a part of the tip is inserted into the gap to cover the umbrella device. The swivel portion fall prevention device of the swivel camera device according to claim 1, wherein the rotation axis of the support column coincides with the rotation axis of the swivel portion. The swivel portion fall prevention device of the swivel camera device according to claim 1, wherein the arm portion is fixed to the swivel camera device using an existing screw attached to the swivel camera device. The swivel portion fall prevention device of the swivel camera device according to claim 5, wherein the existing screw is a screw for attaching a handle to the swivel camera device. With the pedestal
A swivel portion attached to the pedestal portion so as to be able to swivel around a swivel shaft, and a swivel portion.
The camera unit attached to the swivel unit and
A strut mounted upright in the direction of the swivel axis on a side of the swivel portion different from the pedestal portion,
A grip portion that surrounds the support column with a gap from the rotation circumference of the support column and enables the support column to rotate.
An arm portion in which one end is integrated with the grip portion and the other end is fixed at a predetermined position so as not to interfere with the rotation of the swivel portion.
An umbrella device that is attached to the tip of the strut and covers at least a part of the grip portion from the tip side of the strut.
A swivel camera device equipped with. The swivel camera device according to claim 7, wherein the strut stands on a mounting bracket fixed by an existing fixing means on the upper surface of the cover of the swivel portion. The swivel camera device according to claim 8, wherein the existing fixing means is an existing screw attached to the swivel camera device. The swivel camera device according to claim 9, wherein the existing screw is an existing screw for attaching a handle to the swivel camera device. The swivel camera device according to claim 7, wherein the umbrella device has a dome shape that covers the gap. The swivel camera device according to claim 7, wherein the umbrella device is a triangular pyramid-shaped metal fitting in which a part of the tip is inserted into the gap to cover the umbrella device.

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