JP2012070121A - Surveillance camera apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a surveillance camera apparatus that requires low initial costs and enables a simple and safe adjustment to an optical lens system after the installation of a camera body.SOLUTION: The surveillance camera apparatus comprises, within a camera case 24 having a focus adjustment hole 42a penetrating a side surface: a lens barrel 26 having a rotatable focus adjustment part 26a for focus adjustment; a focus adjusting slave rotary member 65a rotatable together with the focus adjustment part 26a; focus adjusting main rotary members 63a and 64a rotationally manipulable from outside the camera case 24 through the adjustment hole 42a; and power transmitting cam means 66a for transmitting the rotation of the main rotary members 63a and 64a to the focusing slave rotary member 65a.

Description

  The present invention relates to a surveillance camera device.

  In recent years, surveillance cameras have been installed not only in banks, department stores, and supermarkets, but also in various places in apartment buildings such as elevators and apartments. A large number of surveillance cameras are also installed in places where a large number of people change seats, such as theaters, pachinko parlors, and game centers, to watch or play.

  In general, a single surveillance camera can shoot only a certain range, and therefore, when shooting a wide range, it is necessary to install a plurality of cameras. In this case, it is necessary to appropriately adjust the shooting direction and range of each camera while taking into consideration the shooting range of other cameras.

  Therefore, conventionally, a surveillance camera is also known in which a spherical camera body is disposed in a housing fixed to a wall, ceiling, or the like so that the photographing direction can be changed (for example, Patent Document 1 and Patent Document 2). reference). Since the camera body is spherical, it can be rotated in any direction, and the shooting direction can be set easily and appropriately.

  However, many conventional surveillance cameras that have a spherical camera body configuration and the camera's shooting direction and range can be freely changed. Requires adjustment and zoom adjustment. At that time, each time the service person opened the camera case and made adjustments, and then assembled the camera case again after adjustment, this method had a problem that workability was poor.

  In view of this, there has conventionally been known a surveillance camera device having a structure capable of performing focus adjustment and zoom adjustment of a lens system without opening a camera case (see, for example, Patent Document 3).

  The structure for performing focus adjustment and zoom adjustment of the lens system in the surveillance camera device described in Patent Document 3 includes a rack member that rotates integrally with the focus adjustment ring or the zoom adjustment ring, and a rack member at the tip. It has a structure with a so-called rack and pinion mechanism that has a gear (pinion) meshed with the rack and a rotating bar that is rotated by a screwdriver inserted from the outside through an adjustment hole provided in the camera case. Yes. When focus adjustment or zoom adjustment is performed, a driver is passed from the outside of the camera to the adjustment hole without opening the camera housing, and the rotation bar is rotated by the driver to perform focus adjustment and zoom adjustment. It is what I did.

JP 2001-238101 A JP 2008-16996 A US Pat. No. 7,423,814

However, since the surveillance camera device known from Patent Document 3 uses a rack and pinion as a focus and zoom adjustment mechanism, there are problems as described in the following (1) to (4).
(1) If the component manufacturing accuracy is low, the adjustment ring may be disturbed. For this reason, since high manufacturing accuracy is required for each component, the cost of the component mold becomes high, and the price of the product itself increases due to this.
(2) The rack and pinion will rattle if they are not meshed correctly. For this reason, since the size and positioning accuracy of the holding plate that determines the position of the pinion, the shaft tilt accuracy, and the like are required to be high, the part mold cost becomes high, resulting in an increase in the price of the product itself.
(3) It is common to apply grease or the like for smooth operation to the rack portion, but if the applied material adheres to the lens surface during the manufacturing process, it becomes very difficult to remove.
(4) In the rack and pinion structure, the workability is poor because the rotating bar has to be adjusted by rotating it many times.

  Therefore, the present invention has been made in view of the above problems, and provides a surveillance camera device that can easily and safely adjust the optical lens system after installing the camera body while suppressing the product price. The purpose is to provide.

  In order to solve the above-described problem, a monitoring camera device according to the present invention includes a lens barrel provided with a rotatable focus adjustment unit for performing focus adjustment in a camera case having a focus adjustment hole penetrating the side surface, A focus adjustment subrotation member that rotates integrally with the focus adjustment unit, a focus adjustment main rotation member that can be rotated from the outside of the camera case through the adjustment hole, and rotation of the focus adjustment main rotation member Focus adjusting cam means for transmitting power to the secondary rotating member.

  According to this configuration, after the surveillance camera device is installed, when a special tool such as a screwdriver is inserted into the adjustment hole from the outside of the camera case, and the tip of the special tool is connected to the main rotation member for focus adjustment, the rotation operation is performed. The rotation of the focus adjusting main rotating member is transmitted to the focus adjusting sub rotating member through the focus adjusting cam means constituted by the cam hole and the protrusion, and the focus adjusting sub rotating member rotates. Further, when the focus adjustment subrotation member rotates, the focus adjustment unit is also rotated together, and the lens system in the imaging optical unit is focus-adjusted so that the subject can be photographed clearly. When the dedicated tool or the like is removed, the focus adjustment unit or the like is held at that position, and the adjusted state is held.

  In the above configuration, the focus adjustment cam means includes plate portions provided on the focus adjustment main rotation member and the focus adjustment sub rotation member, respectively, and one of the plate portions has a cam hole, The plate portion may be provided with a protrusion, and the cam hole and the protrusion may be slidably engaged.

  According to this configuration, the protrusion provided on the plate portion on the focus adjustment main rotating member side is engaged with the cam hole provided on the plate portion on the focus adjustment sub-rotating member side. In order to move smoothly in the cam hole without slipping out of it or being caught in the cam hole and becoming unrotatable, the focus adjustment sub-rotation member and the focus are adjusted in accordance with the rotation of the focus adjustment main rotation member. Adjustment part rotates smoothly. In addition, it is good also as a structure which provided the protrusion in the plate part by the side of a subrotation member, and the cam hole in the plate part by the side of a main rotation member.

  In the above configuration, a lens barrel further provided with a rotatable zoom adjustment unit for performing zoom adjustment in a camera case further having a zoom adjustment hole penetrating the side surface, and a zoom adjustment slave that rotates integrally with the zoom adjustment unit. A rotation member, a zoom adjustment main rotation member that can be rotated from the outside of the camera case through the zoom adjustment hole, and a power transmission for transmitting rotation of the zoom adjustment main rotation member to the zoom adjustment sub rotation member. And a zoom adjustment cam means.

  According to this configuration, after the apparatus is installed, when a special tool such as a screwdriver is inserted into the adjustment hole from the outside of the camera case and the tip of the special tool is connected to the main rotating member for zoom adjustment, The rotation of the adjusting main rotating member is transmitted to the zoom adjusting subrotating member via the cam means constituted by the cam hole and the protrusion, and the zoom adjusting subrotating member rotates. In addition, when the zoom adjustment sub-rotation member rotates, the zoom adjustment unit is also rotated together, and the lens system in the photographing optical unit is zoomed and adjusted to the telephoto side, so that the angle of view (also referred to as “viewing angle”) is narrowed. At the same time, the subject is adjusted to be in an enlarged state. When the subject is adjusted to the wide-angle side, the angle of view can be enlarged to capture a wide range. When the dedicated tool or the like is removed, the zoom adjustment unit or the like is held at that position, and the adjusted state is held.

  In the above configuration, the zoom adjustment cam means includes plate portions respectively provided on the zoom adjustment main rotation member and the zoom adjustment sub rotation member, and one of the plate portions has a cam hole, The plate portion may be provided with a protrusion, and the cam hole and the protrusion may be slidably engaged.

  According to this configuration, since the projection provided on the plate portion on the zoom adjustment main rotating member side is engaged with the cam hole provided on the plate portion on the zoom adjustment secondary rotation member side, the projection is provided on the cam hole. In order to move smoothly in the cam hole without slipping out of the lens or being caught in the cam hole and becoming unrotatable, the zoom adjusting sub-rotating member and the lens are synchronized with the rotation of the zoom adjusting main rotating member. Adjustment part rotates smoothly. The protrusion may be a plate portion on the side of the secondary rotating member for zoom adjustment, and the cam hole may be provided on the plate portion on the side of the main rotating member.

  In the above configuration, a waterproof packing may be provided between the focus adjustment main rotation member or zoom adjustment main rotation member and the focus adjustment hole or zoom adjustment hole corresponding thereto.

  According to this configuration, it is possible to prevent water droplets and the like from entering the inside of the camera body from between the adjustment hole and the main rotating member, thereby protecting each component arranged inside the camera case.

  According to the present invention, the surveillance camera device is installed at a predetermined position, the camera body of the sphere is rotated and the shooting direction is set, and then a special tool or the like is inserted from the outside of the camera case through the adjustment hole, and the main rotating member is rotated. When operated, the lens adjustment unit is rotated, the photographing lens system is adjusted, and the focus and zoom can be easily adjusted. Further, after the adjustment, when the dedicated tool or the like is removed, the lens adjustment unit or the like is held at that position, and the adjusted state can be held. Therefore, it is possible to obtain a monitoring camera device that can appropriately set the shooting direction, zoom, and focus of the camera with a simple operation and that can fix the adjusted state with a small number of parts.

  In addition, the rotation of the main rotating member in the surveillance camera device of the present invention is transmitted to the sub-rotating member and the lens adjusting unit using the cam means constituted by the cam hole and the protrusion, so that it is used in the conventional apparatus. Compared to the rack and pinion structure that has been used, it can be easily formed by a resin mold or the like that does not require high part accuracy, so that the mold cost can be reduced and the product price can be reduced as a result.

  Furthermore, the protrusion of the cam means and the cam hole need only be engaged, and it is not necessary to accurately match the diameter of the protrusion and the width of the cam hole, so there is no need to apply grease or the like for smooth operation. It is. Therefore, it is possible to eliminate grease scattering and removal work during assembly work, which has been a problem with conventional devices.

  Also, during the adjustment work, the adjustment can be completed by rotating the main rotating member within a range of 120 °, for example, without rotating the main rotating member many times as in the case of the rack and pinion structure. become.

1 is an overall perspective view of a monitoring camera device according to an embodiment of the present invention. It is a front view of a surveillance camera apparatus same as the above. It is the sectional view on the AA line of FIG. It is a disassembled perspective view of the camera main body in the surveillance camera apparatus same as the above. It is a perspective view of the unit which comprises the photography optical part periphery part of a camera main body same as the above. It is a principal part disassembled perspective view of a unit same as the above. It is a principal part disassembled perspective view of the same unit seen from the direction different from FIG. It is a disassembled perspective view which expands and shows the partial structure of a camera main body same as the above.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the drawings.

  1 to 4 show an overall configuration of a surveillance camera device according to an embodiment of the present invention, FIG. 1 is a perspective view of the overall configuration of the surveillance camera device, FIG. 2 is a front view of the surveillance camera device, and FIG. 2 is a sectional view taken along line AA in FIG. In this embodiment, a case where the surveillance camera device is attached to a ceiling is taken as an example. Therefore, in the following description, the lower side in the vertical direction in FIG. 3 is the lower side (or front surface) of the surveillance camera device, the upper side is the upper side (or rear surface), and the surface between the front and rear surfaces is the side surface (or peripheral surface) ).

  First, a general configuration of the surveillance camera device according to the present invention will be described. 1 to 3, the monitoring camera device 10 has a spherical camera body 11 (hereinafter referred to as “camera body 11”). The camera body 11 is held by a camera holder 13 and is attached together with the camera holder 13 to a mounting bracket 12 fixedly attached to the ceiling 100 as shown in FIG. Further, after the camera body 11 is attached to the ceiling 100, the cover 14 is attached to the camera holder 13 so as to cover part of the camera holder 13 and all of the mounting bracket 12 from the outside. The camera body 11 and the camera holder 13 are prepared by being assembled in advance and are attached to the mounting bracket 12 side at the installation site of the monitoring camera device 10.

  The camera holder 13 and the cover 14 have a lower opening side as shown in FIGS. 1 and 2 in order to prevent obstruction of the visual field of the optical lens system provided in the camera body 11, that is, vignetting. The substantially U-shaped cutout portions 45, 45, 45 and the cutout portions 52, 52, 52 are provided at intervals of about 120 degrees and corresponding to each other. Reference numeral 46 denotes a claw portion formed between the notches 45, 45, 45, and these claw portions 46 are held so that the camera body 11 is not dropped from the camera holder 13.

  Next, the structure of the camera body 11 will be described with reference to FIGS. 1 to 3 and FIG. The camera body 11 includes a spherical camera case 24, and a photographing optical unit 25 and the like are disposed therein as shown in FIGS.

  More specifically, as shown in FIGS. 3 and 4 to 7, the photographic optical unit 25 is provided with a varifocal lens as a photographic lens system inside, and a focus adjusting unit having a cylindrical shape on the outer periphery. A lens barrel 26 provided with a zoom adjustment unit 26b, a focus adjustment mechanism unit 28a capable of rotating the focus adjustment unit 26a from the outside of the camera case 24, and a zoom adjustment mechanism capable of rotating the zoom adjustment unit 26b. Part 28b.

  When the focus adjustment unit 26a and the zoom adjustment unit 26b of the lens barrel 26 are rotated around the optical axis on the lens barrel 26, the positions of the lenses arranged in the lens barrel 26 on the optical axis are arranged. Are respectively adjusted for movement, so that predetermined focus adjustment and zoom adjustment can be performed.

Further, the focus adjustment mechanism 28a and the zoom adjustment mechanism 28b are formed with substantially the same structure. First, the structure of the focus adjustment mechanism portion 28a will be described. The focus adjustment mechanism portion 28a includes a first focus adjustment main rotation member 63a that can be rotated from the outside of the camera case 24, and a first focus adjustment main rotation. The second focus adjustment main rotating member 64a connected to the member 63a so as to be integrally rotatable, the focus adjustment subrotating member 65a rotating integrally with the focus adjusting unit 26a, and the second focus adjusting main rotating member 64a. And a focus adjustment cam means 66a (see FIG. 3) formed between the focus adjustment secondary rotating member 65a.

  The first focus adjustment main rotating member 63a has a convex portion 68a on the front end side, and engages with a concave portion 67a provided on the rear end portion side of the second focus adjustment main rotating member 64a. Yes. Further, a recess 69a for inserting and engaging the tip of a dedicated tool such as a screwdriver is provided on the rear end side. On the other hand, the second focus adjustment main rotation member 64a is rotatably mounted in the through hole 74a of the second lens holder 32b, and one end side of the focus adjustment main rotation side plate portion 70a is on the front end side. It is attached so that it can rotate integrally. Note that a pin 71a as a pin-shaped protrusion is provided on the front surface on the other end side (the surface opposite to the lens barrel 26) of the focus adjustment main rotation side plate portion 70a.

  The focus adjustment subrotation member 65a is a ring-shaped member fixed to the outer peripheral surface of the focus adjustment unit 26a. Further, corresponding to the focus adjustment main rotation side plate portion 70a provided on the second focus adjustment main rotation member 64a side, the outer peripheral surface of the focus adjustment sub rotation member 65a is extended downward. Further, the focus adjusting subrotation plate portion 72a is integrally formed. The focus adjustment sub-rotation side plate portion 72a and the focus adjustment main rotation-side plate portion 70a are arranged in a superimposed state, that is, in a superimposed state. Of the surfaces to be overlapped with each other, that is, the outer peripheral surface of the focus adjustment subrotation plate portion 72a and the inner peripheral surface of the focus adjustment subrotation plate portion 70a, the focus adjustment subrotation plate portion 72a. The outer peripheral surface is formed as a convex spherical surface, and the inner peripheral surface of the focus adjustment main rotation side plate portion 70a is formed as a concave spherical surface. It should be noted that the pin 71a of the main rotation side plate portion 70a for focus adjustment protrudes toward the center of the concave spherical surface (substantially the same as the spherical center of the secondary rotation side plate portion 72a for focus adjustment), that is, the substantially spherical curved surface center. It is installed.

  Further, a cam hole 73a serving as a cam passage in which a pin 71a of the focus adjustment main rotation side plate portion 70a is slidably projectingly engaged is formed on the outer peripheral surface of the focus adjustment secondary rotation side plate portion 72a. Is formed. The cam hole 73a constitutes the focus adjusting cam means 66a together with the pin 71a slidably engaged in the cam hole 73a. The focus adjustment cam means 66a converts the rotation applied to the focus adjustment main rotating member 63a into a force for rotating the focus adjustment unit 26a. That is, when the first focus adjustment main rotation member 63a and the second focus adjustment main rotation member 64a are rotated and the focus adjustment main rotation side plate portion 70a is rotated together with the pin 71a, the rotation is caused by the cam hole 73a. Thus, the focus adjustment sub-rotation member 65a is rotated integrally with the focus adjustment unit 26a about the optical axis of the varifocal lens. That is, when the pin 71a is rotated, the pin 71a slides in the cam hole 73a while pressing the inner surface of the cam hole 73a, and the pressing force at this time is a force for rotating the focus adjusting subrotation member 65a. Acting on the focus adjustment subrotation member 65a, and the focus adjustment subrotation member 65a rotates about the optical axis of the varifocal lens. Further, along with the rotation of the focus adjustment subrotation member 65a, the focus adjustment unit 26a that fixes the focus adjustment subrotation member 65a rotates. The rotation direction and the rotation amount of the focus adjustment sub-rotation member 65b and the focus adjustment unit 26a are proportional to the rotation direction and rotation amount of the first and second focus adjustment main rotation members 63a and 64a. In addition, although the cam hole 73a in this example is formed in the shape of a bottomed groove, it may be formed simply as a through cam hole. Further, the pin 71a and the cam hole 73a need only be engaged with each other, and since it is not necessary to accurately match the pin diameter and the cam hole width, a smooth rotation operation can be obtained without applying grease or the like.

  Next, the structure of the zoom adjustment mechanism portion 28b will be described. The zoom adjustment mechanism portion 28b includes a first zoom adjustment main rotation member 63b that can be rotated from the outside of the camera case 24, and a first zoom adjustment main portion. The second zoom adjusting main rotating member 64b connected to the rotating member 63b so as to be integrally rotatable, the zoom adjusting sub rotating member 65b rotating integrally with the zoom adjusting unit 26b, and the second zoom adjusting main rotating member. 64b and zoom adjusting cam means 66b (see FIG. 3) formed between the zoom adjusting sub-rotating member 65b.

  The first zoom adjusting main rotating member 63b has a convex portion 68b on the front end side, and engages with a concave portion 67b provided on the rear end side of the second zoom adjusting main rotating member 64b. Yes. Further, a concave portion 69b for inserting and engaging the tip of a dedicated tool such as a screwdriver is provided on the rear end side. On the other hand, the second zoom adjustment main rotation member 64b is rotatably mounted in the through hole 74b of the second lens holder 32b, and one end side of the zoom adjustment main rotation side plate portion 70b is on the front end side. It is attached so that it can rotate integrally. Note that a pin 71b as a pin-shaped protrusion is provided on the front surface on the other end side (the surface opposite to the lens barrel 26) of the zoom adjustment main rotation side plate portion 70b.

  The zoom adjustment sub-rotation member 65b is a ring-shaped member fixed to the outer peripheral surface of the zoom adjustment unit 26b. Further, corresponding to the zoom adjustment main rotation side plate portion 70b provided on the second zoom adjustment main rotation member 64b side, the outer peripheral surface of the zoom adjustment sub rotation member 65b is extended upward. Further, the zoom adjusting subrotation side plate portion 72b is integrally formed. The zoom adjustment sub-rotation side plate portion 72b and the zoom adjustment main rotation-side plate portion 70b are arranged in a superimposed state, that is, in a superimposed state. Of the surfaces that are overlapped with each other, that is, the outer peripheral surface of the zoom adjustment subrotation plate portion 72b and the inner peripheral surface of the zoom adjustment subrotation plate portion 70b, the zoom adjustment subrotation plate portion 72b. The outer peripheral surface is formed as a convex spherical surface as shown in detail in FIG. 8A, and the inner peripheral surface of the main rotation side plate portion 70b is formed as a concave spherical surface as shown in detail in FIG. 8B. Yes. It should be noted that the pin 71b of the zoom adjustment main rotation side plate portion 70b protrudes toward the substantially spherical concave center (substantially the same as the spherical center of the zoom adjustment secondary rotation side plate portion 72b), that is, toward the substantially spherical curved surface center. It is installed.

  Further, on the outer peripheral surface of the zoom adjustment sub-rotation side plate portion 72b, there is a cam hole 73b serving as a cam passage in which the pin 71b of the zoom adjustment main rotation-side plate portion 70b is slidably projectingly engaged. Is formed. The cam hole 73b constitutes the zoom adjusting cam means 66b together with the pin 71b slidably engaged in the cam hole 73b. The zoom adjusting cam means 66b converts the rotation applied to the zoom adjusting main rotating member 63b into a force for rotating the zoom adjusting unit 26b. That is, when the first zoom adjustment main rotation member 63b and the second zoom adjustment main rotation member 64b are rotated and the zoom adjustment main rotation side plate portion 70b is rotated together with the pin 71b, the rotation is caused by the cam hole. 73b is transmitted through the zoom adjustment unit 26b so that the zoom adjustment sub-rotation member 65b rotates integrally with the zoom adjustment unit 26b about the optical axis of the varifocal lens. That is, when the pin 71b is rotated, the pin 71b slides in the cam hole 73b while pressing the inner surface of the cam hole 73b, and the pressing force at this time is a force for rotating the zoom adjusting subrotation member 65b. Acting on the zoom adjusting subrotation member 65b, and the zoom adjustment subrotating member 65b rotates about the optical axis of the varifocal lens. Further, together with the rotation of the zoom adjustment subrotation member 65b, the zoom adjustment unit 26b that fixes the zoom adjustment subrotation member 65b rotates. The rotation direction and the rotation amount of the zoom adjustment sub-rotation member 65b and the zoom adjustment unit 26b are proportional to the rotation direction and the rotation amount of the first and second zoom adjustment main rotation members 63b and 64b. In addition, although the cam hole 73b in this example is formed in a bottomed groove shape, it may be formed simply as a through cam hole. The pin 71b and the cam hole 73b only need to be engaged with each other, and since it is not necessary to accurately match the pin diameter and the cam hole width, a smooth rotation operation can be obtained without applying grease or the like.

  The camera case 24 has a waterproof packing 56 sandwiched therebetween and abuts the opening of the dome-shaped hemispherical first case 24a and the opening of the dome-shaped hemispherical second case 24b. It is formed in a roughly spherical shape.

  More specifically, a transparent or translucent translucent cover is attached to the center of the bottom surface of the first case 24a via a waterproof packing (not shown) between the first case 24a. An imaging window 40 is provided. Then, when the imaging optical unit 25 is disposed in the first case 24a and fixed by the first lens holder 32a with the lens surface 27a of the lens barrel 26 facing the imaging window 40, the imaging optical unit 25 is fixed. It is comprised so that it can attach to the 1st case 24a.

  Further, an adjustment hole 42a corresponding to the first focus adjustment main rotation member 63a and an adjustment hole 42b corresponding to the first zoom adjustment main rotation member 63b are formed on the side surface of the first case 24a. , Are provided through each.

  On the other hand, as shown in FIG. 3, the second case 24 b is integrally provided with an annular protrusion 43 having a cable insertion opening 43 a at the center of the top surface corresponding to the opening 16 of the mounting bracket 12. .

  In the camera body 11, when the photographing optical unit 25 is mounted in the first case 24a, the first focus adjustment main rotating member 63a is rotatably disposed in the adjustment hole 42a, and the adjustment hole A first zoom adjusting main rotating member 63b is rotatably disposed in 42b. 5 to FIG. 5 are attached between the adjustment hole 42a and the first focus adjustment main rotation member 63a and between the adjustment hole 42b and the first zoom adjustment main rotation member 63b. 7, waterproof seals 39a and 39b for sealing are provided. Thereafter, the concave portion 67a of the second focus adjustment main rotating member 64a is engaged with and connected to the convex portion 68a of the first focus adjusting main rotating member 63a, and the first zoom adjusting main rotating member 63b is connected. The photographing optical unit 25 is disposed in the first case 24a so that the concave portion 67b of the second zoom adjustment main rotating member 64b is engaged with and connected to the convex portion 68b. Next, the first case 24 a and the second case 24 b are fixed, and the camera body 11 is assembled.

  Further, the adjustment hole 42a and the adjustment hole 42b in the camera body 11 are provided corresponding to the notch portion 45 of the camera holder 13 as shown in FIGS. Therefore, even after the monitoring camera device 10 is installed, a dedicated tool such as a screwdriver can be supplied from the outside of the camera case 24 through the adjustment hole 42a and the adjustment hole 42b, and the first main rotation member 63a and the first main rotation member 63b. Can be rotated.

  The first main rotating members 63a and 63b are rotatably held in the camera case 24 in the adjustment holes 42a and 42b, and the second main rotating members 64a and 64b are first in the through holes 74a and 74b. Two lens holders 32b are rotatably held by the first main rotating member 63a and the second main rotating member 64a, and the main rotating member before and after the first main rotating member 63b and the second main rotating member 64b. Since the end portion is rotatably held by the camera case 24 and the second lens holder 32b, the main rotating member (63a and 64a, and 63b and 64b) is stable without the inclination or rattling. Will be held at. The first main rotating member 63a and the second main rotating member 64a, and the first main rotating member 63b and the second main rotating member 64b may be integrally formed.

  Further, waterproof packings 39a and 39b are provided between the adjusting holes 42a and 42b and the first main rotating members 63a and 63b, respectively, and the gaps between the adjusting holes 42a and 42b and the first main rotating members 63a and 63b are tightly closed. Therefore, it is possible to reliably prevent water droplets or the like from entering the camera body from between the adjustment holes 42a and 42b and the first main rotating members 63a and 63b. Can be protected.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiments, and various modifications may be made within the scope of the gist of the present invention described in the claims. It can be changed.

  For example, the pins 71a and 71b in the cam means 66a and 66b may be provided in the driven rotation side plate portions 72a and 72b, and the cam holes 73a and 73b may be provided in the main rotation side plate portions 70a and 70b.

  Also, depending on the type of varifocal lens, the relationship between the focus adjustment unit 26a and the zoom adjustment unit 26b may be reversed. For example, the notation of whether focus or zoom adjustment is performed near the adjustment holes 42a and 42b. The main body structure can be handled as it is simply by changing

DESCRIPTION OF SYMBOLS 10 Surveillance camera apparatus 11 Spherical type camera main body 24 Camera case 26 Lens barrel 26a Focus adjustment part 26b Zoom adjustment part 28a Focus adjustment mechanism part 28b Zoom adjustment mechanism part 56 Waterproof packing 42a, 42b Adjustment hole (operation through-hole)
63a, 63b First main rotating members 64a, 64b Second main rotating members 65a, 65b Sub rotating members 66a, 66b Cam means 70a, 70b Main rotating side plate portions 71a, 71b Pins (pin-like protrusions)
72a, 72b Subrotation side plate portion 73a, 73b Cam hole

Claims (5)

In the camera case with a focus adjustment hole that penetrates the side,
A lens barrel provided with a rotatable focus adjustment unit for performing focus adjustment;
A focus adjustment subrotation member that rotates integrally with the focus adjustment unit;
A main rotating member for focus adjustment that can be rotated from the outside of the camera case through the adjusting hole;
Focus adjustment cam means for power transmission that transmits the rotation of the focus adjustment main rotation member to the focus sub rotation member;
A surveillance camera device characterized by comprising:       The focus adjustment cam means includes plate portions respectively provided on the focus adjustment main rotation member and the focus adjustment sub rotation member, and one of the plate portions has a cam hole and the other plate portion of the plate. The surveillance camera device according to claim 1, wherein a projection is provided, and the cam hole and the projection are slidably engaged. In addition to claim 1,
A lens barrel further provided with a rotatable zoom adjustment section for performing zoom adjustment in a camera case further having a zoom adjustment hole penetrating the side surface;
A secondary rotating member for zoom adjustment that rotates integrally with the zoom adjustment unit;
A main rotating member for zoom adjustment that can be rotated from the outside of the camera case through the zoom adjusting hole;
Zoom adjusting cam means for transmitting power to transmit the rotation of the zoom adjusting main rotating member to the zoom adjusting sub rotating member;
A surveillance camera device characterized by comprising:       The zoom adjustment cam means comprises plate portions respectively provided on the zoom adjustment main rotation member and the zoom adjustment sub rotation member. One of the plate portions has a cam hole, and the other plate portion has a cam hole. The surveillance camera device according to claim 3, wherein a projection is provided, and the cam hole and the projection are slidably engaged.       5. A waterproof packing is provided between the focus adjustment main rotation member or zoom adjustment main rotation member and the focus adjustment hole or zoom adjustment hole corresponding to the focus adjustment main rotation member or zoom adjustment main rotation member, respectively. The surveillance camera device according to any one of the above.

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