JP2018105945A - Shoulder mount type imaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video camera for broadcasting and commercial-use capable of comfortably imaging while listening to a better sound, while flexibly coping with a change of gravity center balance by the accessories to be mounted.SOLUTION: A shoulder mount type imaging apparatus is constituted by a first housing detachably attachable with an imaging optical system; and a shoulder pad formed with an elastic member on the surface and a second housing detachably attachable at the two positions of at least a first closest position to the subject and a second farthest position from the subject of the imaging optical system with respect to the first housing. The first housing includes sound output means for performing a sound output on the side surface, and the sound output means takes a longitudinal direction in the direction to connect the first position of the second housing and the second position of the second housing. The length in the longitudinal direction of the sound output means is longer than the distance between the two points between the first position and the second position of the second housing.SELECTED DRAWING: Figure 7

Description

  The present invention relates to the structure of a shoulder-type imaging device.

  In general, many video cameras for broadcasting and professional use have a shoulder-type shooting style in which the camera body is held on the shoulder of the photographer in order to reduce the burden on the shoulder of the photographer. In general, a shoulder pad is provided at a portion of the bottom of the video camera that contacts the shoulder. In general shoulder pads, a cushioning material such as polyethylene foam is used, and in order to stabilize the video camera on the shoulder, a recess is provided on the lower side to fit the shape of the shoulder Yes. In addition, the main body is provided with a speaker at a position where the photographer's ear hits the side in order to confirm the sound of the video being shot.

  Here, in the case of a video camera for broadcasting / commercial use, for example, when shooting in a studio or the like, it is common to use it on a tripod for stable shooting. A tripod mount for connecting to and fixing to a tripod in a broadcast or professional video camera is usually provided on the front and rear sides of the bottom. Fix it stably. And it is common that the shoulder pad is arrange | positioned at the recessed part between two front and rear tripod seats.

  In general, video cameras for broadcasting and business use have a structure in which a lens to be used can be exchanged according to the distance of a subject. In addition, various accessories can be attached to the video camera body in order to cope with various photographing environments and photographing objects. Therefore, the position of the center of gravity of the video camera changes greatly depending on the lens and accessories to be attached.

  In order to stably hold the video camera on the shoulder, it is desirable that the shoulder pad portion that supports the video camera is disposed immediately below the center of gravity. However, the broadcast / commercial video camera has a problem that the position of the center of gravity changes every time a lens or an accessory is exchanged, and the position of the center of gravity cannot be held stably. In order to cope with this problem, a structure in which a part of the shoulder pad portion is configured to be movable in the front-rear direction has been proposed (see Patent Document 1).

Japanese Patent Application Laid-Open No. 8-186649

  However, in the conventional technique described in Patent Document 1, when the shoulder pad is moved to a position corresponding to the change in the center of gravity by the attached lens or accessory, the positional relationship between the photographer's ear and the video camera changes. End up. For example, when a long and heavy lens for telephoto shooting is attached, the position of the center of gravity moves considerably forward. When the shoulder pad is moved to a position corresponding to the position of the center of gravity at this time, there is a problem that the speaker is detached from the position of the ear and the sound of the video being shot cannot be heard.

  Therefore, the present invention has been made for the purpose of providing a video camera for broadcasting and business use that can be comfortably photographed while listening to good sound while flexibly responding to changes in the balance of the center of gravity due to accessories to be attached. Is.

  In order to achieve the above-described object, the invention according to the present application includes a first housing in which an imaging optical system is detachable, and a shoulder pad portion whose surface is formed of an elastic member. On the other hand, it is composed of at least a second housing that is detachable at two positions: a first position closest to the subject of the imaging optical system and a second position farthest from the subject of the imaging optical system. In the shoulder-mounted imaging device, the first housing has sound output means for outputting sound on a side surface, and the sound output means includes the first position of the second housing and the second housing. The length in the direction connecting the second positions is long, and the length of the sound output means in the longitudinal direction is larger than the distance between the two points of the first position and the second position of the second casing. To be long It is characterized in that have been made.

  As described above, according to the present invention, it is possible to provide a video camera for broadcasting and business that can comfortably shoot while listening to good sound while flexibly responding to changes in the balance of the center of gravity due to the accessories to be attached. It becomes possible to do.

The perspective view of a shoulder-mount type imaging device. The perspective view of a main-body part. The figure which shows a speaker part. The figure which looked at the shoulder unit connected with the grip unit from the lower side. Shoulder pad explanatory drawing. The exploded perspective view from the lower part. The figure which shows the state which attached the lens.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
<Description of components of shoulder-mounted imaging device>
First, the configuration of the shoulder-type imaging apparatus 100 will be described with reference to FIG. FIG. 1A is a perspective view of the shoulder-type imaging device 100 of the present invention as viewed from the front side. FIG.1 (b) is the perspective view which looked at the shoulder-type imaging device 100 of this invention from the rear side. In the present embodiment, the description will be made by defining the subject side as the front side in the direction toward the subject, and defining the subject side as the front side.

  As shown in FIG. 1, the shoulder-type imaging apparatus 100 shown in this embodiment includes a main body 101, a shoulder unit 102, a viewfinder 103, an L-shaped angle 104, a lens unit 105, a battery 106, and a grip unit 107. Yes. When using the shoulder-type imaging device 100, the photographer carries the shoulder-mounting unit 102 on his / her right shoulder, and places the photographer's right cheek on the left side of the shoulder-type imaging device 100. However, the most stable posture is to take the grip unit 107 with the right hand and hold it while maintaining balance. Therefore, the shoulder-type imaging device 100 shown in the present embodiment also arranges each part on the premise of this photographing posture.

  Next, each component of the shoulder-type imaging device 100 will be described. The main body 101 is a part having main elements related to photographing of the shoulder-type imaging device 100, and details thereof will be described later. The shoulder-mounting unit 102 is a unit connected to the bottom surface of the main body 101 and is a part that abuts the shoulder of the photographer and stably holds the shoulder-mounted imaging device 100 at the time of photographing. To do. The viewfinder 103 is an eyepiece optical unit having a display device such as a liquid crystal and a plurality of optical lenses inside. The viewfinder 103 displays an image based on a video signal during shooting, optically enlarges the displayed image, and allows a photographer to On the other hand, it is a part for transmitting image information currently taken.

  The viewfinder 103 is connected to the upper part of the main body 101 via an L-shaped angle 104 described later on the left side surface of the shoulder-type imaging device 100. This is just the front of the eye of the photographer carrying the shoulder-mounted imaging device 100. During photographing, the periphery of the eye is naturally pressed against the eyepiece 1031 at the rearmost end of the finder unit 103 and the inside is looked into. This makes it possible to check the image. Thereby, for example, it is possible to see the photographed image well even in a place where the light from the outside is strong, such as under a hot sun.

  The L-shaped angle 104 is a metal portion having an L shape when viewed from the upper surface side, and is a member that connects the main body 101 and the finder 103. Each of the two sides constituting the L-shape is provided with a first rail portion 1041 having an opening facing the front side and a second rail portion 1042 having an opening facing the side surface side.

  The lens unit 105 includes a plurality of lens groups, a plurality of movable optical elements such as a diaphragm, and an actuator that drives these optical elements, and an image sensor (not shown) included in the main body unit 101. It is an optical system that forms an image on the top. It should be noted that by moving a predetermined lens, it is possible to perform zoom for changing the angle of view of the photographed image and focus to focus on the subject. The lens unit 105 is configured to be detachable from the main body unit 101.

  The battery 106 is a secondary battery such as a lithium ion battery configured to be detachable from the main body 101 and supplies power to the shoulder-type imaging device 100. Further, a battery holding portion 1061 is provided on the back surface of the battery 106. This has the same shape as a battery mounting portion 113 provided in the main body 101 described later.

  The grip unit 107 is a unit that is mechanically coupled to the shoulder unit 102, and is a part for holding the shoulder-mounted imaging device 100 with a hand attached during imaging. And it has the cable (not shown) electrically connected with respect to the main-body part 101. FIG. In addition, there are various operating units such as zoom and stop operating the actuator of the lens unit 105 and trigger keys for instructing start / stop of recording. It can be done smoothly.

<Description of components of main unit>
Next, components of the main body 101 will be described with reference to FIG. Fig.2 (a) is the perspective view which looked at the main-body part 101 of this invention from the upper side front. FIG.2 (b) is the perspective view which looked at the main-body part 101 of this invention from the lower back. As shown in FIG. 2, the main body 101 includes a lens mount part 108, an L-shaped angle attachment part 109, a speaker part 110, an operation part 112, a battery attachment part 113, and a screw hole group 114. In addition, an image sensor, a control circuit, a recording unit, and the like (not shown) are provided inside.

  The lens mount unit 108 is a part provided on the front surface of the main body unit 101 to which the lens unit 105 can be attached. The lens unit 105 is not only mechanically attached, but also includes an electrical contact unit. 101 and the lens unit 105 are also electrically connected. As a result, the main body unit 101 can communicate with the lens unit 105 and control an actuator inside the lens unit 105.

  The L-shaped angle mounting portion 109 is a portion that is connected to the first rail portion 1041 of the L-shaped angle 104 provided above the front lens mount portion 108 of the main body 101. With this portion as an axis, the L-shaped angle 104 can arbitrarily slide within a predetermined range in the left-right direction with respect to the main body 101. Further, the L-shaped angle attaching portion 109 has a configuration for locking the sliding of the L-shaped angle 104. In addition, since the structure for locking shall be comprised using a known technique suitably, it abbreviate | omits in this description.

  The speaker unit 110 is provided on the left side surface of the main body unit 101 for reproducing sound, and has a horizontally long shape with a sufficiently long length in the front-rear direction with respect to the length in the vertical direction. Yes. In the speaker unit 110 of the present invention, the length in the front-rear direction is at least twice as long as the length in the vertical direction.

  Here, the speaker unit 110 is shown in FIG. Fig.3 (a) is the perspective view which looked at the speaker part 110 of this invention from the upper front. FIG. 3B is a cross-sectional view of the speaker unit 110 of the present invention. As shown in FIG. 3, the speaker unit 110 includes a plurality of speakers 111 that generate sound. Each speaker 111 has a front portion sealed by a wall 1101 integrally provided inside the speaker portion 110 and separated into an independent room shape. The outside and inside of the speaker unit 110 communicate with each other through a plurality of hole portions 1102 provided.

  Note that the speaker unit 110 is provided at a portion that bears the shoulder-mounted imaging device 100 on the shoulder and is in contact with the right ear of the photographer in the above-described photographing posture. The operation unit 112 is a part composed of buttons and levers that are operated by the photographer when changing the setting at the time of shooting, and is arranged on the front side of the left side surface of the main body unit 101. The battery attachment portion 113 is a portion that is provided behind the main body portion 101 and that detachably holds the battery 106 and is a portion that is electrically connected while mechanically holding the battery 106. The screw hole group 113 is a plurality of screw holes 1131 provided at equal intervals in the front-rear direction on the bottom surface side of the main body 101.

<Description of components of shoulder unit>
Next, components of the shoulder unit 102 will be described with reference to FIG. FIG. 4 is a view of the shoulder unit 102 connected to the grip unit 107 as viewed from below. As shown in FIG. 4, the shoulder rest unit 102 includes a base member 115, a front tripod seat 116, a rear tripod seat 117, a bar 118, a burst top 119, a front shoulder pad 120, and a rear shoulder pad 121.

The base member 115 is a member that serves as a base on which various members constituting the shoulder unit 102 are attached. The base member 115 is provided with a plurality of elongated holes 1151 penetrating in the vertical direction in a symmetrical manner. (4 locations in Fig. 4)
The front tripod seat 116 and the rear tripod seat 117 are members for fixing the shoulder-type imaging device 100 to a tripod not shown in the figure, and each has a shape corresponding to the shape of the fixing mechanism on the tripod side. ing. The front tripod seat 115 and the rear tripod seat 117 are firmly fixed to the base member 115 at a predetermined interval.

  The bars 118 are two rod-like hollow members arranged so as to protrude forward from the base member 115, and the two bars 118 are provided side by side. The bar 118 can be removed from the base member 115. The burst top 119 is a cap-shaped member that connects the two bars 118 fixed to the tips of the two bars 118, and is firmly fixed to the two bars 118. The grip unit 107 is connected to the shoulder unit 102 so as to be suspended from two bars 118. The grip unit 107 is slidable in the front-rear direction along the two bars 118 and can be fixed at an arbitrary position.

  In addition, since the moving mechanism in the front-back direction of the grip unit 107 is a moving mechanism using a known technique, details of the structure and the like are omitted in this embodiment.

  As described above, the grip unit 107 is suspended from the bar 118 so as to be sandwiched between the base member 115 and the burst top 119. Therefore, even if it slides back and forth, it collides with either the base member 115 or the burst top 119, so that it does not fall out of the bar 118, and it is possible to perform photographing stably. Further, the shoulder unit 102 with the bar 118 and the grip unit 107 suspended from the bar 118 removed is attached to the main body unit 101, and a lens unit (not shown) in which the grip unit is integrally formed is used. It is also possible to shoot.

  The front shoulder pad 120 is a portion that is provided on the lower side of the base member 115 and comes into contact with the photographer's shoulder at the time of photographing. The surface is made of a cushioning material such as foamed polyethylene, and a metal frame is included. It is a member. And it is firmly fixed so that it may become integral with the base member 115 with the screw | thread 122 in the form which pinches | interposes the frame part which is partially exposed.

  Similarly to the front shoulder pad 120, the rear shoulder pad 121 is a portion that is provided on the lower side of the base member 115 and abuts against the photographer's shoulder, and the surface is made of a cushioning material such as foamed polyethylene. And a member in which a metal frame is included. The rear shoulder pad 121 is connected to the base member 115 so as to be movable in the front-rear direction via a known moving mechanism (not shown).

  The rear shoulder pad 121 can be moved in the front-rear direction between a position in contact with the front shoulder pad 120 and two positions separated from the front shoulder pad 120 by a predetermined distance. It can be locked at any location. The operation of locking and releasing the moving mechanism of the rear shoulder pad 121 can be easily operated with one hand even when the shoulder-mounted imaging device 100 is held on the shoulder.

  In addition, since the moving mechanism in the front-rear direction of the rear shoulder pad 121 is a moving mechanism using a known technique, details of the structure and the like are omitted in this embodiment. The front-side shoulder pad 120 and the rear-side shoulder pad 121 receive the weight of the shoulder-type imaging device 100 during shooting. As a result, the part made of foamed polyethylene near the surface is deformed, but because the frame is inside, the shape is maintained within a certain range without being greatly deformed as a whole. It becomes possible to hold the imaging apparatus 100 stably.

  By adopting the configuration of the shoulder mounting unit 102 as described above, it is possible to adjust the positional relationship between the position of the hand to be gripped and the shoulder according to the photographer's own physique, and shooting with the most stable posture. Is possible.

<Detailed explanation of shoulder pads>
Here, details of the front shoulder pad 120 and the rear shoulder pad 121 will be described with reference to FIG. FIG. 5A is a diagram showing a state in which the rear shoulder pad 121 is moved to the front side. FIG. 5B is a diagram illustrating a state in which the rear shoulder pad 121 is moved to the rear side. The front shoulder pad 120 and the rear shoulder pad 121 have a shape that is divided in the front-rear direction, and a protrusion 123 formed on the rear shoulder pad 121 and a notch formed on the front shoulder pad 120. The portions 124 are fitted and combined so as to overlap each other in the front-rear direction.

  At this time, the overlap amount of the convex portion 123 and the notch portion 124 is set to be sufficiently longer than the movement amount of the rear shoulder pad 121, and even when the rear shoulder pad 121 is moved to the rearmost side. The convex portion 123 and the cutout portion 124 are in a relationship of maintaining an overlapped state. Accordingly, it is possible to always stably contact the photographer's shoulder regardless of the position of the rear shoulder pad 121.

  Further, when the front shoulder pad 120 and the rear shoulder pad 121 are viewed from the side in a combined state, they are concave in an arc shape. The arc-shaped recess formed by the front shoulder pad 120 and the rear shoulder pad 121 is shaped based on ergonomics, and abuts against the photographer's shoulder in a very natural shape. Thereby, the shoulder-type imaging device 100 can be stably held.

  In the present embodiment, only the rear shoulder pad 121 is movable with respect to the base member 115. However, the movable shoulder pad is reversed or the portion that contacts the photographer's shoulder is 2 Instead of one, it may be composed of three or more shoulder pads, and a plurality of or all of them may be movable.

  Up to this point, the configurations of the main body 101 and the shoulder unit 102 constituting the shoulder-type imaging device 100 have been described. However, the shoulder-type imaging device 100 also has a function for recording a moving image. It has various necessary components. However, the details of the configuration and function are not related to the essence of the present invention, and the description thereof will be omitted.

<Explanation of shoulder unit fastening method>
Next, a method for fixing the shoulder unit 102 to the main body 101 will be described with reference to FIG. FIG. 6 is an exploded perspective view illustrating a method for fixing the shoulder unit 102 to the main body 101. As shown in FIG. 6, the shoulder unit 102 is fixed to the main body 101 in such a manner that the attachment screw 125 passes through a long hole 1151 provided in the base member 115 and the base member 115 is sandwiched between the attachment screws 125. Fastened to a part of the screw hole group 114 below the main body 101.

  At this time, since the plurality of screw holes 1141 are arranged at predetermined intervals in the front-rear direction, the shoulder unit 102 can take a plurality of attachment positions in the front-rear direction. Since the base member 115 is fixed in such a manner that the mounting screw 125 passes through the elongated hole 1151, the mounting position can be finely adjusted. Further, it is assumed that the main body 101 has means (not shown) for detecting at which attachment position the shoulder unit 102 is attached.

<Explanation of change in center of gravity by lens part>
Next, the change in the center of gravity position due to the difference between the attached lens portions 105 will be described with reference to FIG. FIG. 7A is a diagram showing a state in which a long and long lens unit 1051 for telephoto is attached. FIG. 7B is a diagram showing a state where a light and short lens portion 1052 for wide angle is attached. As shown in FIG. 7A, for example, when a telephoto heavy and long lens unit 1051 is attached, the center-of-gravity position 126 of the shoulder-mounted imaging device 100 is a position closer to the front side.

  Then, as shown in FIG. 7B, for example, when a light and short lens unit 1052 for wide angle is attached, the center of gravity 126 of the shoulder-mounted imaging device 100 is a position closer to the rear side. As described above, the shoulder unit 102 can take a plurality of attachment positions in the front-rear direction with respect to the main body 101. For this reason, no matter what lens unit 105 is attached, it is possible to always support the position directly below the center of gravity 126 with the shoulder, and it is possible to always hold the shoulder-mounted imaging device 100 stably.

  In addition, since the grip unit 107 is connected to the shoulder unit 102, the positional relationship between the gripped hand and the shoulder does not change at all regardless of the attachment position of the shoulder unit 102. Therefore, it is possible to always maintain the optimal positional relationship between the hand and the shoulder for the photographer regardless of the lens to be attached. Furthermore, since the viewfinder 103 is arranged so as to be movable in the front-rear direction along the second rail 1042 of the L-shaped angle 104, it is possible to shoot with a reasonable posture according to the position of the shoulder unit 102. It is.

  The speaker unit 110 has a horizontally long shape as described above. This has a sufficient length with respect to the distance between the position where the shoulder unit 102 is attached to the front side and the position where the shoulder unit 102 is attached to the rear side, and is arranged so as to cover the moving distance of the shoulder unit 102. Has been. Since the position of the photographer's ear is directly above the photographer's shoulder, the right ear of the photographer always comes into contact with the speaker unit 110 regardless of the position where the shoulder mounting unit 102 is attached.

  Here, the position in the vertical direction from the photographer's shoulder to the ear does not change no matter what position the shoulder rest unit 102 is attached to. Therefore, the speaker unit 110 does not need to be very long in the vertical direction. On the other hand, if the length is too long, the speaker unit 110 cannot be covered with the ear, and the sound leaks outside, resulting in low efficiency. Therefore, it is sufficient that the length in the vertical direction is a minimum length that can be covered by the ear. In the speaker unit 110 of the present invention, the length in the front-rear direction is longer than twice in the vertical direction. .

  In the shoulder-mounted imaging device 100 of the present invention, the main body 101 controls the outputs of the plurality of speakers 111 in accordance with the mounting position of the shoulder unit 102.

  For example, as shown in FIG. 7A, when a telephoto heavy and long lens unit 1051 is attached and the shoulder unit 102 is attached to the foremost side, the sound output from the rear speaker 111 is turned off. And On the contrary, as shown in FIG. 7B, when the light and short lens portion 1052 for wide angle is attached and the shoulder unit 102 is attached to the rearmost side, the output of the front speaker 111 is turned off. By performing such control, sound is not output from a place that is not blocked by the ear and sound is not leaked, so that it is very easy to use.

  Here, as shown in FIG. 7A, the operation unit 112 is disposed so as to come to the front side of the eyepiece unit 1031 even when the shoulder unit 102 is attached to the foremost side. Since the periphery of the eye is pressed against the eyepiece 1031 at the time of shooting, the face does not protrude in front of the eyepiece 1031. Therefore, the operation unit 112 is always exposed in front of the photographer's face, and the operation unit 112 is not erroneously operated with the face at the time of shooting, which makes it very easy to use.

  As described above, no matter which attachment position the shoulder rest unit 102 is attached to, it is possible to shoot comfortably while listening to good sound without leaking sound.

  In this embodiment, the response to the change in the center of gravity due to the difference in the lens unit 105 has been described. However, the present invention is not limited to this. It is possible to adjust the shoulder unit 102 similarly in the case of a change.

  As described above, the present invention has been described in detail based on the preferred embodiments. However, the present invention is not limited to only the modes shown in the above-described examples, and can provide the same effects as the present invention. Various forms within the scope of the present invention are also included in the present invention. Moreover, you may combine suitably a part of above-mentioned embodiment.

DESCRIPTION OF SYMBOLS 100 ... Shoulder-type imaging device 101 ... Main-body part 102 ... Shoulder-mounting unit 103 ... Finder 1031 ... Eyepiece part 104 ... L-shaped angle 1041 ... First rail part 1042 ... Second rail part 105 ... Lens part 1051 ... Long lens 1052 ... Short lens 106 ... Battery 1061 ... Battery holding part 107 ... Grip unit 108 ... Lens mount part 109 ... L-shaped angle mounting part 110 ... Speaker part 1101 ... ········································ HOLE 111 ···························································································································· Back tripod 118 118 Bar 119 Burst top 120 Front shoulder Paddo 121 ‥‥ rear shoulder pad 122 ‥‥ screw 123 ‥‥ protrusion 124 ‥‥ notch 125 ‥‥ mounting screws 126 ‥‥ centroid position

Claims (5)

  A first housing with a detachable imaging optical system and a shoulder pad portion having a surface formed of an elastic member, the first housing being at least closest to the subject of the imaging optical system; In the shoulder-type imaging device, which includes a first housing and a second housing that is detachable at two positions, the second position furthest away from the subject of the imaging optical system, the first housing is a voice. Audio output means for performing output is provided on a side surface, and the audio output means is elongated in a direction connecting the first position of the second casing and the second position of the second casing, The shoulder-type imaging device characterized in that the length of the output means in the longitudinal direction is longer than the distance between the two points of the first position and the second position of the second casing.   The shoulder-mounted imaging device according to claim 1, wherein the audio output unit includes at least two speaker units that perform audio output therein.   The shoulder-mounted imaging device according to claim 1, wherein the first casing includes a position detection unit that detects a position of the second casing.   4. The shoulder-type imaging device according to claim 1, wherein the first casing controls the sound output unit in accordance with an output of the position detection unit. 5.   The first casing includes a display unit that displays a captured video, the display unit includes an eyepiece unit that contacts the photographer, and an operation unit for operating the first casing includes the audio output. 5. The shoulder-type imaging device according to claim 1, wherein the shoulder-mounted imaging device is disposed closer to the subject than the eyepiece on the same plane as the means.