JP2015135401A - Boom for camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a boom for a camera capable of carrying out operation for changing a vertical direction of an obtained image.SOLUTION: A boom 1 for a camera includes: a camera case 21 which is attached with a camera C on a tip end side of a pipe 10, has an operating portion 30 on a base end side of the pipe 10, formed in a cylindrical shape with an opening, and stores the camera C while keeping the direction of the opening in the direction of an optical axis; an outside case 22 which is a cylindrical case coaxially with the camera case 21, and formed with two through-holes 23 and 24; a camera case supporting stay 40 coupling the tip end of the pipe 10 and the outside 22; and a transmission mechanism 50 connected with the camera case 21 through the through-holes 23 and 24 of the outside case 22, connected to the operating portion 30, and transmitting the movement of the operating portion 30 to the camera case 21. The camera case 21 is rotatably in the outside case 22 through the transmission mechanism 50 according to the movement of the operating portion 30.

Description

  The present invention relates to a camera boom, and more particularly to a handheld camera boom.

  Conventionally, not only studio cameras and handy cameras but also small cameras that are cheaper and lighter than those are sometimes used for production of broadcast programs and the like. In recent years, even with such a small camera, it has become possible to shoot high-definition video, so that its applications are diverse, and it has become an important item in program production in the broadcasting field.

  In general, a camera used for program production is mounted on a camera mount and attached to a camera stand such as a tripod. When fixed on a tripod, the upper camera can rotate while maintaining horizontal and vertical. Here, the direction of rotation is, for example, pan for moving the camera in the horizontal direction (horizontal direction) or tilt for moving the camera in the vertical direction (vertical direction).

  In the studio, the microphone is fixed to the tip of a boom (boom) connected to a stand column fixed to the floor, and the base end side of the boom (microphone boom) is moved by a human hand. Is positioned. A camera is also fixed to the tip of a camera boom connected to a tripod fixed to the floor or a camera mount, and the camera is positioned by moving the base end of the camera boom with a human hand. Yes.

  In some cases, it may be desirable for a cameraman to take a picture while holding the camera boom to which the camera is attached in order to obtain the video necessary for the program. For example, when a photographer who is next to an actor has to acquire an image of the front of the actor's face due to the limitation of whereabouts, if the boom is operated by hand, the photograph can be taken from the side. Patent Document 1 discloses a camera boom capable of operating a camera pan and tilt at hand using a servo motor.

JP-T-2006-521579

  However, when the camera boom is tilted or shaken, the vertical direction of the video acquired by the camera is different from the vertical direction of the actual actor. That is, when the 12 o'clock direction is actually upward, for example, the 10 o'clock direction is upward in the acquired video. Such a rotation of the acquired video is particularly noticeable when shooting outside the studio. In addition, with the technique disclosed in Patent Document 1, an operation for changing the vertical direction of the acquired video cannot be performed at hand.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a camera boom capable of performing an operation for changing the vertical direction of an acquired image at hand.

  In order to solve the above-mentioned problem, a camera boom according to the present invention is a camera boom having a camera attached to a distal end side of a pipe and an operation portion on a proximal end side of the pipe, and a camera case, The outer case, the camera case support stay, and the transmission mechanism are provided.

  According to this configuration, in the camera boom, the camera case is a cylindrical case having an opening, and the camera is housed with the direction of the opening as the direction of the optical axis of the camera. The outer case is a coaxial cylindrical case that rotatably supports the camera case, and is formed with two through holes. The camera case support stay connects the end of the pipe and the outer case. The transmission mechanism is connected to the camera case through the through hole of the outer case and is connected to the operation unit, and transmits the movement of the operation unit to the camera case. In the camera boom, the camera case rotates at a predetermined angle inside the outer case via the transmission mechanism in accordance with the operation of the operation unit. Therefore, the camera mounted on the camera case of the camera boom can rotate around the roll axis in accordance with the operation of the operation unit.

  According to the camera boom of the present invention, the operator can perform an operation of changing the vertical direction of an image acquired by the camera at hand. Therefore, the degree of freedom of the shooting position can be increased, and a wider range of camera work than before can be achieved.

It is a schematic diagram of the boom for cameras which concerns on embodiment of this invention. It is a schematic diagram of the boom for cameras of FIG. 1, (a) is a top view, (b) is a front view. It is a schematic diagram before rotating the operation part of the camera boom of FIG. 1, (a) is sectional drawing which passes along two through-holes of a camera attachment part, (b) is an exploded sectional view of a camera attachment part, (c) ) Is a perspective view of the proximal end side of the pipe, and (d) is a top view of the proximal end side of the pipe. It is a schematic diagram when the operation part of the camera boom of FIG. 1 is rotated, (a) is sectional drawing which passes along two through-holes of a camera attachment part, (b) is an exploded sectional view of a camera attachment part, (c) ) Is a perspective view of the proximal end side of the pipe, and (d) is a top view of the proximal end side of the pipe. It is a figure for demonstrating operation of the boom for cameras of FIG. It is a schematic diagram of the head mounted display used for imaging | photography with the camera boom of FIG. It is a schematic diagram of how to attach the camera to the camera boom of FIG. 1, wherein (a) shows a state when attached, and (b) shows a state when removed. It is a schematic diagram which shows the modification 1 of the boom for cameras which concerns on embodiment of this invention, (a) is a top view, (b) is a front view. It is a schematic diagram which shows the modification 2 of the boom for cameras which concerns on embodiment of this invention, (a) is a top view, (b) is a front view. It is a schematic diagram which shows the modification 3 of the boom for cameras which concerns on embodiment of this invention, (a) is a top view, (b) is a front view.

  Hereinafter, embodiments for implementing a camera boom according to the present invention will be described in detail with reference to the drawings. Note that the size, positional relationship, and the like of the members shown in each drawing may be exaggerated for clarity of explanation.

  Hereinafter, the camera boom 1 shown in FIGS. 1, 2A, and 2B will be described as an example. 2A and 2B, the front-rear direction indicated by the arrow is the direction of the optical axis of the camera C, and the up-down direction indicated by the arrow is the up-down direction of the image acquired by the camera C. is there. The left indicated by the arrow is the left in the video acquired by the camera C (the left when the subject is viewed from the camera C).

  The camera boom 1 includes a pipe 10, a camera mounting portion 20 on the distal end side (right in FIG. 1), an operation portion 30 on the proximal end side (left in FIG. 1) of the pipe 10, and a camera case support stay. 40 and a transmission mechanism 50.

  As long as the pipe 10 has a strength capable of supporting the camera mounting portion 20 and the camera C, the outer diameter, thickness, length, hardness, and material of the pipe 10 can be appropriately selected. For example, as for the material, it is preferably formed of aluminum or aluminum alloy that is lightweight and strong. Moreover, it is preferable that length is the length which a person can hold | grip, for example, about 1-2 m.

  A wire lead-out pipe 11 is provided in the central portion of the pipe 10 in the axial direction. The wire lead-out pipe 11 is a narrow pipe communicating with the inside of the pipe. Here, the wire lead-out tube 11 is attached to the pipe 10 at a predetermined angle, and is provided so that the end opposite to the grip portion 12 is in a state of being separated from the pipe 10. A grip 12 is provided between the wire lead-out pipe 11 and the tip of the pipe 10. FIG. 5 shows a state in which the cameraman H grips the grip portion 12 with the left hand L.

Returning to FIG. 1, FIG. 2 (a), and FIG. 2 (b), the description of the configuration of the camera boom 1 will be continued.
The camera mounting portion 20 is to which the camera C is mounted, and is entirely cylindrical and has a double structure, and is configured such that the inner case can rotate with respect to the outer case. The camera attachment unit 20 includes a camera case 21 and an outer case 22.

  The camera case 21 and the outer case 22 of the camera mounting portion 20 are for supporting the camera C and directing it in a predetermined direction. As long as the cases 21 and 22 have such a strength that the camera C can be supported, the outer diameter, thickness, length, hardness, and material can be selected as appropriate. For example, regarding the material, it is preferably formed of a lightweight and strong plastic, for example, a resin material such as polycarbonate or acrylic, or an inexpensive and strong MC nylon (registered trademark).

  The camera case 21 is a cylindrical case having an opening, and stores the camera C in a state in which the camera C is supported with the direction of the opening being the direction of the optical axis of the camera C. Here, the storage means that at least a part of the area of the camera C is mounted in the camera case 21, and it is not necessary to completely put the entire camera in the camera case 21.

  The outer case 22 is a coaxial cylindrical case that rotatably supports the camera case 21 at a predetermined angle, and is disposed outside the camera case 21. Two through holes 23 and 24 are formed in the outer case 22. A bearing (not shown) is provided between the outer case 22 and the camera case 21 so that the camera case 21 can easily rotate at a predetermined angle.

  The operation unit 30 includes a handle 31 that is fitted to the outer peripheral surface of the pipe 10 on the proximal end side of the pipe 10 and is rotatable with respect to the pipe 10 around the axis of the pipe 10. On the outer peripheral surface of the handle 31, a rod-shaped wire fixing portion 32 is projected. These members of the operation unit 30 are made of lightweight and strong plastic. The operation method in the operation unit 30 will be described later.

  The camera case support stay 40 connects the tip of the pipe 10 and the outer case 22. As shown in FIG. 2B, the camera case support stay 40 includes a cap 41, case support portions 42 and 43, and a reinforcement portion 44.

The cap 41 has a cylindrical shape with both ends open and is fixed to the tip of the pipe 10.
The case support portions 42 and 43 are partially bent bar-shaped members and are fixed to the cap 41 and the outer case 22. Case support portions 42 and 43 are disposed on both sides of the outer case 22, respectively. The outer case 22 is screwed via case support portions 42 and 43 on both sides at a position corresponding to the diameter of the circle on the outer periphery. In this embodiment, a screw (not shown) is used on both sides in addition to the screw, and the outer case 22 is fixed so as not to move with respect to the camera case support stay 40.
The reinforcing portion 44 is connected between the respective bent portions of the case support portions 42 and 43, and includes two through holes for allowing the wires to pass therethrough.

  If the camera case support stay 40 has such a strength that the pipe 10 and the camera mounting portion 20 can be connected and supported, the shape, thickness, length, hardness, and material can be selected as appropriate. For example, as for the material, it is preferable that it is made of lightweight and strong stainless steel (for example, SUS304).

  The transmission mechanism 50 is connected to the camera case 21 and is also connected to the operation unit 30 to transmit the movement of the operation unit 30 to the camera case 21. In the camera boom 1, the camera case 21 rotates at a predetermined angle inside the outer case 22 via the transmission mechanism 50 in accordance with the operation of the operation unit 30.

  The transmission mechanism 50 includes a wire connected to the wire fixing portion 32 on the outer peripheral surface of the handle 31. The wire is connected to the operation unit 30 and to the camera case 21, and a part of the wire is disposed so as to pass through the pipe 10. This wire is connected to the camera case 21 through the two through holes of the reinforcing portion 44 of the camera case support stay 40 and the through holes 23 and 24 of the outer case 22. The wire is connected inside the outer case 22 through the through holes 23 and 24.

  As shown in FIG. 3A, the wire (reference numeral W <b> 1) that passes through the through hole 23 is wound around the camera case 21 and pulled out through the through hole 24. The wire (reference numeral W2) passing through the through hole 24 is integral with the wire W1. Here, it is assumed that the direction in the initial state when the camera case 21 is not rotating is the direction indicated by the arrow 27. In this example, the wire is wound around the outer periphery of the camera case 21 so as to go around to the tip end side of the arrow 27. In this initial state, the direction in which the wire fixing portion 32 on the proximal end side of the pipe 10 faces is shown in FIG.

  For example, as shown in FIG. 3B, the camera attachment unit 20 places the camera case 21 in the outer case 22 and draws the wires from the through holes 23 and 24 of the outer case 22. A bearing (not shown) is inserted between the cylinders 22 and the openings on both sides of the cylinder are closed with lids 28 and 29. The lid bodies 28 and 29 have an opening at the center.

  One end of the wire passing through the pipe 10 is taken out from the wire drawing tube 11 and fixed to the wire fixing portion 32 of the handle 31. The other end of the wire passing through the pipe 10 is fixed to a base end portion inside the pipe 10 via an elastic member 51 such as a spring as shown in FIGS. 2 (a) and 3 (d). The elastic member 51 is for generating a restoring force when the handle 31 is rotated.

[Operation example]
In FIG. 1, the transmission mechanism 50 is configured such that when the wire (reference numeral W <b> 2) passing through the through hole 24 is pulled from the camera mounting portion 20, the wire (reference numeral W <b> 1) passing through the through hole 23 is pulled toward the camera mounting portion 20. It has become a relationship. The state when the handle 31 is rotated is shown in FIGS. 4 (a) to 4 (d). 4 (a) to 4 (d) correspond to FIGS. 3 (a) to 3 (d) in an initial state before the handle 31 is rotated.

  When the handle 31 is rotated counterclockwise, for example, as shown in FIG. 4C from the initial state, the elastic member 51 (FIG. 4D) is extended by the tension, and the length of the wire drawn from the wire drawing tube 11 is increased. 4A and 4B, the wire W2 passing through the through hole 24 is pulled from the camera mounting portion 20, and the wire W1 passing through the through hole 23 is directed toward the camera mounting portion 20. The camera case 21 is pulled by the frictional force between the wire and the outer peripheral surface of the camera case 21, and the camera case 21 rotates clockwise inside the outer case 22 as indicated by an arrow 27. When the hand is released from the handle 31 in this state, the camera case 21 is reversely rotated inside the outer case 22 in FIG. 4A due to the restoring force of the elastic member 51 and returns to the original position.

  FIG. 5 shows a situation where a fisherman P is gazing at the tip of a fishing line on a fishing boat B at sea, and a photographer H photographs a fisherman P's facial expression from the side of the fisherman P using a camera boom. It is a figure which shows a mode that it is. As shown in FIG. 5, when the photographer H grips the grip portion 12 with the left hand L and rotates the handle 31 with the right hand R, the level of the captured image can be changed.

  Even if the arm of the photographer H tilts or the fishing boat B shakes and the camera rotates around the roll axis, the direction of the fisherman's head in the photographed image can be changed by operating the handle 31 as described above. It can be matched upward in the captured image. This makes it easier to obtain an image of a decisive moment that is not tilted in editing work after shooting or real-time broadcasting, compared to the case of using a conventional camera boom without a roll mechanism.

  A head mounted display can be used to adjust the angle of view of the camera C. FIG. 6 is a diagram schematically showing the cameraman H wearing the head mounted display 60. The head mounted display 60 is conventionally well-known and what is marketed can be utilized.

  The head mounted display 60 includes, for example, goggles, a small display unit provided in the goggles, and a control unit. The control unit is connected to a portable small personal computer (PC) such as a smartphone, and the small PC is connected to the camera C, so that an image captured by the camera C is displayed on the display unit of the head mounted display 60 in real time. Can be displayed.

[Camera installation example]
In the camera boom 1, the camera C is attached to the camera attachment unit 20. An example of the attachment method will be described with reference to FIGS. 7 (a) and 7 (b). Here, the camera stop seat 70 having the same structure as that of a general fixture for fixing the camera to a stand or the like is used. FIG. 7A shows a state in which the camera stop seat 70 is attached to the camera attachment portion 20, and FIG. 7B is a schematic view showing a state in which the camera stop seat 70 is removed.

As shown in FIG. 7B, the camera case 21, which is a cylindrical case inside the camera mounting portion 20, is provided with threaded holes 25 and 26 that pass therethrough.
The camera stop seat 70 is housed in the camera case 21 together with the fixed camera C. The camera stop seat 70 is a plate-like member as a whole, and one plate surface (the right surface indicated by an arrow in FIG. 7) is a chamfered curved surface so as to fit inside the cylinder of the camera case 21. Have. Further, the camera stop seat 70 is thinly formed at one end (rear side) in the front-rear direction indicated by an arrow in FIG. 7, and is provided with a camera fixing screw hole 74 that is a through hole. The camera fixing screw hole 74 is disposed outside the camera case 21 when the camera stop seat 70 is inserted into the camera case 21 from the other end side (front side) in the front-rear direction indicated by an arrow in FIG. It is provided in such a position.

  The camera stop seat 70 includes non-through stop seat fixing screw holes 71 and 72 on one plate surface side (the right surface indicated by an arrow in FIG. 7). These retaining seat fixing screw holes 71 and 72 correspond to the screw holes 25 and 26 of the camera case 21. An anti-rotation hole 73 that is a through hole is formed at a predetermined position between the stopper seat fixing screw hole 71 and the camera fixing screw hole 74.

An outline of an example of a procedure for attaching the camera C when the camera stop seat 70 is used will be described.
First, the rotation prevention hole 73 of the camera stop seat 70 and the rotation prevention hole (not shown) of the same hole diameter on the camera C side are aligned, and a pin (not shown) having a diameter that fits into each hole is inserted. Then, the camera fixing screw hole 74 and the screw hole (not shown) of the same hole diameter on the camera C side are aligned, and a fixing screw (not shown) is screwed into the camera fixing screw hole 74, so that the camera C is attached to the camera. Fix to the stop seat 70.
Next, the camera stop seat 70 is put in the camera case 21 to which the wire is connected, and fixing screws (not shown) are screwed into the screw holes 25 and 26 aligned with the stop seat fixing screw holes 71 and 72. The camera stop seat 70 is fixed to the camera case 21.

  Next, the camera case 21 is put in the outer case 22, and wires are pulled out from the through holes 23 and 24 (see FIG. 1) of the outer case 22, and a bearing (not shown) is interposed between the camera case 21 and the outer case 22. Then, both ends in the front-rear direction indicated by arrows in FIG. 7 of the outer case 22 are closed by, for example, two lid bodies 28 and 29 shown in FIG. Thus, the outer case 22 can be attached to the camera case support stay 40. Note that at least the lid on the lens side of the camera C has an opening in the center. The above procedure is an example, and the mounting procedure of the camera C is not limited to this.

  The camera boom 1 according to this embodiment is configured such that the camera mounting portion 20 has a double structure, the camera case 21 is supported so as to rotate at a predetermined angle with respect to the outer case 22, and the direction of the opening Is stored with the camera C supported in the direction of the optical axis of the camera C, the camera C can rotate about the roll axis in accordance with the movement of the operation unit 30. Therefore, the operator can perform an operation to change the vertical direction of the video acquired by the camera C at hand.

  Therefore, the degree of freedom of the shooting position can be increased and a wider range of camera work than before can be performed. For example, when you get on a fishing boat, you can aim the face of the angler from the front, or you can follow and shoot small animals such as cats from the viewpoint of small animals, so it is excellent for the viewer's impression Broadcast programs that provide video can be produced.

  The camera boom according to the present invention has been described above based on the embodiment, but the present invention is not limited to this. Hereinafter, modified examples will be described.

[Modification 1]
In the above description, the transmission mechanism that transmits the movement of the operation unit 30 of the camera boom 1 to the camera case 21 is configured by the wire. However, for example, a timing belt may be used in combination. Hereinafter, a description will be given with reference to FIGS. 8A and 8B. In addition, the same code | symbol is attached | subjected to the same structure as the structure shown in FIG. 1, and description is abbreviate | omitted suitably. As shown in FIGS. 8A and 8B, the camera boom 1B includes a pipe 10, a camera attachment unit 20, an operation unit 30B, a camera case support stay 40B, and a transmission mechanism 80. ing.

  As shown in FIG. 8B, the camera case support stay 40 </ b> B includes a cap 41 and case support portions 45 and 46. Case support portions 45 and 46 differ from case support portions 42 and 43 in that a reinforcing plate member is provided around the bent portion. The plate members for reinforcing the case support portions 45 and 46 also function as the reinforcing portion 44 shown in FIG.

The operation unit 30 </ b> B includes a roll grip (handle) 33 and a grip holder 34. The roll grip 33 is configured to be rotatable around the axis of the pipe 10 with respect to the grip holder 34. The tip of the roll grip 33 has a small diameter and a screw, and is screwed into a screw hole of a bevel gear (bevel gear) 82.
The grip holder 34 is fixed to the timing pulley support 81 by a joint bar 95, and is fixed to the pipe 10 with the timing pulley support 81 interposed therebetween.

The transmission mechanism 80 is connected to the tip end of the roll grip 33 and converts the rotation direction of the roll grip 33 while being fitted to the outer peripheral surface of the pipe 10 and supporting the proximal end of the pipe 10. A gear mechanism including a timing pulley 86 and the like, and a timing belt 90 are provided.
The timing belt 90 is provided between a timing pulley 86 (hereinafter referred to as an operation side pulley 86) and a timing pulley 89 (hereinafter referred to as a driven side pulley 89).
The operation-side pulley 86 is connected to the same rotation shaft 84 as the bevel gear 83 and is disposed so as to face the bevel gear 83 via the timing pulley support 81.

  As a part of the gear mechanism, for example, a bevel gear 83 is supported by a bevel gear stay 85. 8A, 9A, and 10A, only the cross section of the bottom plate surface of the bevel gear stay 85 (the bottom surface farthest from the bevel gear 83) so that the rotating shaft 84 can be seen. Is illustrated. As shown in FIGS. 8B, 9B, and 10B, the bevel gear stay 85 bends forward from the upper end portion and the lower end portion of the bottom plate surface to rotate the rotating shaft 84. And a side plate extending in a direction parallel to the.

  The bevel gear 83 is supported by the bevel gear stay 85 and rotates around the rotation shaft 84 to change the rotation direction of the bevel gear 82 by 90 degrees. An operation side pulley 86 is connected to the rotation shaft 84, and the rotation of the operation side pulley 86 is transmitted to the driven side pulley 89 by the timing belt 90. The tension pulley 92 rotates around the rotation shaft 94 and applies a predetermined tension to the timing belt 90. A timing pulley support 87 separated from the timing pulley support 81 by a predetermined distance is fitted to the outer peripheral surface of the pipe 10 and supports a rotating shaft 88 that rotates the driven pulley 89. The rotating shaft 88 rotates a disk-shaped rotating body connected to the driven pulley 89.

Wire attachment portions 91 a and 91 b are formed on the periphery of the rotating body 91, and the wire 93 fixed to the wire attachment portions 91 a and 91 b is connected to the camera case 21.
The joint bar 95 connects the timing pulley support 81 and the grip holder 34. Therefore, the roll grip 33 rotates with respect to the joint bar 95. In FIG. 8B, two joint bars 95 are illustrated around the pipe 10 at intervals of 180 degrees. However, the present invention is not limited to this, and three joint bars 95 are disposed around the pipe 10 at intervals of 120 degrees. It may be provided.

  The rotation of the roll grip 33 is transmitted to the camera case 21 via the gear mechanism, the timing belt 90 and the wire 93. The radius of the rotating body 91 is larger than the radius of the driven pulley 89, and the rotation of the roll grip 33 can be transmitted as a minute rotation of the camera case 21. According to the first modification, for example, by adjusting the diameter of the timing pulley on the operation side or the diameter of the rotating body 91, the gear ratio can be changed and the speed can be changed.

[Modification 2]
For example, a timing belt may be used instead of the wire in the transmission mechanism that transmits the movement of the operation unit 30 of the camera boom 1 to the camera case 21. Hereinafter, a description will be given with reference to FIGS. 9A and 9B. In addition, the same code | symbol is attached | subjected to the same structure as the structure shown to Fig.8 (a) and FIG.8 (b), and description is abbreviate | omitted suitably. As shown in FIGS. 9A and 9B, the camera boom 1C includes a pipe 10, a camera attachment unit 20, an operation unit 30B, a camera case support stay 40B, and a transmission mechanism 80C. ing.

The transmission mechanism 80 </ b> C is connected to the timing pulley support 81 that fits on the outer peripheral surface of the pipe 10 and supports the proximal end of the pipe 10, and is connected to the distal end of the roll grip 33 and converts the rotation direction of the roll grip 33. A gear mechanism and a timing belt 90C are provided.
The timing belt 90 </ b> C is provided between the operation side pulley 86 </ b> C and the camera case 21. The timing belt 90 </ b> C passes through the pipe 10.
The operation side pulley 86 </ b> C is connected to the same rotation shaft 84 as the bevel gear 83, and is disposed in the gap of the timing pulley support 81 on the axis of the pipe 10.

  As the gear mechanism, the bevel gear 83 is supported by the bevel gear stay 85, rotates around the rotation shaft 84, and changes the rotation direction of the bevel gear 82 by 90 degrees. An operation side pulley 86C is connected to the rotation shaft 84, and the rotation of the operation side pulley 86C is transmitted to the camera case 21 by the timing belt 90C. The tension pulleys 92C and 92D apply a predetermined tension from above and below the timing belt 90C.

  According to the second modification, the rotation of the roll grip 33 can be transmitted to the camera case 21 via the gear mechanism and the timing belt 90C, so that the wire can be omitted.

[Modification 3]
In the above description, the rotation of the camera C around the roll axis has been described. However, when the camera boom 1 is gripped so as to photograph the subject from the side as shown in FIG. It may be configured to allow panning that moves in the direction). Hereinafter, a description will be given with reference to FIGS. 10 (a) and 10 (b). The camera boom 1D is different from the camera boom 1C in that the camera boom 1D includes a handle 101, a handle support 102, and a wire 103.

  In the description of the camera booms 1, 1 </ b> B, and 1 </ b> C described with reference to FIGS. 1 to 9, the outer case 22 is fixed so as not to move with respect to the camera case support stay 40. Modification 3 is different in that it is fixed so that it can rotate. That is, the connecting portion between the camera mounting portion 20 and the case support portions 45 and 46 in FIG. 10B is pivotally supported by a roller, and the camera mounting portion 20 is defined in the left-right direction and the front-back direction in FIG. Can be rotated in a horizontal plane.

The handle support 102 is provided so as to be fitted to the outer peripheral surface of the pipe 10, and is fixed to the central portion of the pipe 10 in the axial direction.
The handle 101 is a plate-like member and has a T shape in plan view. The handle 101 is attached to the handle support 102, and is rotatably supported around a rotation axis protruding upward from the handle support 102 within a predetermined angle range (for example, 60 degrees). One end of the wire 103 is connected to one end of the handle 101 in the longitudinal direction, and the other end of the wire 103 is connected to the other end of the handle 101 in the longitudinal direction.

  The wire 103 passes from one end in the longitudinal direction of the handle 101 through a wire attachment hole formed in the rear end portion of the upper surface of the outer case 22 of the camera attachment portion 20, and the wire formed from the wire attachment hole to the front end portion of the upper surface. It passes through the attachment hole, passes through the outside of the pipe 10, and is connected to the other end in the longitudinal direction of the handle 101.

  When the handle 101 is manually operated, the camera mounting portion 20 swings left and right by the wire 103 connected to the handle 101. That is, panning that moves the camera C in the horizontal direction (horizontal direction) is possible.

[Other variations]
Although the right side of the camera C is fixed to the camera stop seat 70 in FIG. 7, the present invention is not limited to this, and the lower side of the camera C may be fixed to the camera stop seat 70. In this case, the camera boom is used from above or below the subject in front of the subject and used in a direction to photograph the subject from the front. And when using in this way, in the structure of the modification 3 shown to Fig.10 (a) and FIG.10 (b), since the surface prescribed | regulated by the left-right direction and the front-back direction turns into a vertical surface, Can be rotated with. That is, tilting that moves the camera C in the vertical direction (vertical direction) is possible.

  Further, as shown in FIG. 5, since the wire movement is the same regardless of whether the handle 31 is rotated clockwise or counterclockwise from the initial state, the vertical direction of the camera is set to 12 o'clock in the initial state. By deviating from this direction, the direction of rotation of the acquired image may be adjusted clockwise or counterclockwise.

In the embodiment using the wire, for example, in FIG. 3A, the wire wraps around to the tip end side of the arrow 27 and is wound around the outer periphery of the camera case 21. May be pulled out through the through hole 24 without winding the camera case 21. Even in this case, by pulling the wire, it is possible to move the camera case 21 by frictional force by the wire coming into contact with the outer peripheral surface of the camera case 21.
Moreover, when using a wire, you may use not only one wire but two wires.

1, 1B, 1C, 1D Camera boom 10 Pipe 11 Wire drawing tube 12 Grip part 20 Camera mounting part 21 Camera case 21 Handle 22 Outer case 23, 24 Through hole 25, 26 Screw hole 28, 29 Lid 30, 30B Operation Part 31 Handle 32 Wire fixing part 33 Roll grip (handle)
34 Grip holder 40, 40B Camera case support stay 41 Cap 42, 43, 45, 46 Case support portion 44 Reinforcement portion 50, 80, 80C Transmission mechanism 51 Elastic member 60 Head mount display 70 Camera stop seat 71, 72 Stop seat fixing Screw hole 73 Anti-rotation hole 74 Camera fixing screw hole 81 Timing pulley support 82, 83 Bevel gear 84 Rotating shaft 85 Bevel gear stay 86, 86C Timing pulley (operating pulley)
87 Timing pulley support 88 Rotating shaft 89 Timing pulley (driven pulley)
90, 90C Timing belt 91 Rotating body 91a, 92a Wire attachment portion 92, 92C, 92D Tension pulley 93, 103 Wire 94 Rotating shaft 95 Joint bar 101 Handle 102 Handle support C Camera

Claims (3)

A camera boom having a camera attached to the distal end side of the pipe and an operating portion on the proximal end side of the pipe,
A cylindrical case having an opening, wherein the camera is stored with the direction of the opening as the direction of the optical axis of the camera;
A coaxial cylindrical case for rotatably supporting the camera case, wherein two outer holes are formed;
A camera case support stay for connecting the tip of the pipe and the outer case;
A transmission mechanism connected to the camera case through the through hole of the outer case, connected to the operation unit, and transmitting the movement of the operation unit to the camera case;
A camera boom, wherein the camera case rotates at a predetermined angle inside the outer case via the transmission mechanism in accordance with an operation of the operation unit. The operation portion includes a handle that is fitted to an outer peripheral surface of the pipe and is rotatable around an axis of the pipe.
The camera boom according to claim 1, wherein the transmission mechanism includes a wire connected to a wire fixing portion on an outer peripheral surface of the handle.   The camera boom according to claim 2, wherein a part of the wire is disposed so as to pass through the pipe.

Images