JP4547542B2 - Camera support - Google Patents

Description

  The present invention relates to a camera support that supports an imaging apparatus such as a still camera or a video camera.

  2. Description of the Related Art Conventionally, a camera support such as a monopod or a tripod that supports an imaging device is used when the imaging device performs cell timer imaging or imaging using a remote controller. Such a camera support generally includes a camera fixing member that fixes the camera and a support leg that supports the camera fixing member.

As such a camera support, there exists a thing as described in patent document 1, for example. Patent Document 1 describes a camera tripod that can be expanded and contracted and used for photographing a still camera, a video camera, or the like. The support leg of the camera tripod described in Patent Document 1 has a configuration in which small-diameter second-stage pipes, third-stage pipes, and fourth-stage pipes are sequentially housed in a first-stage pipe, respectively. ing. And the lock nut is provided in the lower-end outer periphery of the 1st-3rd stage pipe except a 4th stage pipe, respectively, The pipe accommodated inside can be fixed now by arbitrary protrusion lengths. .
JP-A-8-285178

  However, in the camera tripod described in Patent Document 1, it is necessary to perform the following work when extending the support leg. First, turn the lock nut to one side to loosen the clamp on the pipe stored inside. And after changing the protrusion length of the pipe accommodated inside, the lock nut is turned to the other to tighten and fix the pipe. Therefore, the camera tripod described in Patent Document 1 has a problem that it takes time and labor to extend the support leg.

  An object of the present invention is to provide a camera support tool that can easily perform an operation of extending a support leg in consideration of the above-described problems.

In order to solve the above-described problems and achieve the object of the present invention, a camera support of the present invention has a camera fixing member to which an imaging device is fixed and a plurality of pipe members connected in a nested manner. The first stage pipe member is fixed between the support leg attached to the camera fixing member and the pipe member except for the first stage pipe member. A stator provided with an inclined portion that forms a gap portion, and a movable member interposed in each gap portion. When the tip of the final-stage pipe member is directed downward, the pipe member other than the first-stage pipe member is pulled out. a contactor pressed against the inner surface of the pipe member corresponding to the inclined portion by the inclined portion of the stator to move in the direction, housed inside the pipe member in the final stage, the distal end of the pipe member at the final stage upwards Turning, It is moved by the action of the force, and the contact portion pressed against the inner surface of the pipe member outside the final stage pipe member is pressed by the inclined portion of the stator fixed to the final stage pipe member, and the final stage pipe The main feature is that it has a movable element that moves to a position where it cannot be pressed against the inner surface of the pipe member, which is one of the outer members.

  In the camera support of the present invention, the contact member moved in the extending direction of the support leg by gravity is pressed against the inner surface of the pipe member corresponding to the inclined portion by the inclined portion of the stator, and the pipe member to which the stator is attached is pressed. Fix it.

  According to the camera support of the present invention, the pipe member is automatically pulled out simply by turning the support leg in the contracted state downward, and the pipe member is fixed only by stopping the pulling-out operation of the pipe member. Can do. As a result, the work of extending the support legs can be performed very easily.

  Hereinafter, the best mode for carrying out the camera support of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following mode.

  FIG. 1 is a perspective view of an extended state in which a support leg of a tripod showing the embodiment of the camera support of the present invention is most extended, and FIG. 2 is a perspective view of a state in which the support leg is also contracted.

  As shown in FIGS. 1 and 2, a tripod 1 showing an embodiment of the camera support of the present invention supports a camera fixing member 2 to which an imaging device (not shown) is fixed, and the camera fixing member 2. It consists of three supporting legs 3 and the like.

  The camera fixing member 2 includes a camera fixing base 12, a first shaft portion 13 that supports the camera fixing base 12 so as to be rotatable in the vertical direction Y (tilt direction), and the first shaft portion 13 in the horizontal direction X ( A second shaft portion 14 and the like that are rotatably supported in the pan direction) are provided.

  The camera fixing base 12 includes a mounting portion 16 on which the imaging device is mounted and a bearing portion 17 that protrudes downward continuously from one side of the mounting portion 16. The mounting portion 16 of the camera fixing base 12 is provided with a fixing screw 18 that is screwed into a tripod screw hole (not shown) provided on the bottom surface of the imaging device. A handle 19 for rotating the camera fixing base 12 is attached to the bearing portion 17.

  The 1st axial part 13 is formed in the substantially rectangular parallelepiped. A fitting shaft (not shown) that protrudes substantially vertically is provided on one side surface of the first shaft portion 13, and the bearing portion 17 of the camera fixing base 12 can turn on the fitting shaft. It is mated. That is, the first shaft portion 13 supports the camera fixing base 12 so as to be rotatable in the vertical direction Y by the fitting shaft. Further, a bearing hole (not shown) is provided on the bottom surface of the first shaft portion 13 so as to be rotatably fitted to a fitting shaft 22 described later of the second shaft portion 14.

  The second shaft portion 14 includes a shaft base 21 and a fitting shaft 22 that protrudes substantially perpendicularly from the upper surface of the shaft base 21. As described above, the bearing shaft (not shown) of the first shaft portion 13 is rotatably fitted to the fitting shaft 22 of the second shaft portion 14. That is, the second shaft portion 14 supports the first shaft portion 13 by the fitting shaft 22 so as to be rotatable in the horizontal direction X. Accordingly, the camera fixing base 12 can be rotated in the horizontal direction X via the first shaft portion 13.

  Three support legs 3 having the same configuration are attached to the bottom of the shaft base 21. The support leg 3 includes a first pipe member 31 made of a cylindrical body, a second pipe member 32 made of a cylindrical body having a smaller diameter than the first pipe member 31, and a diameter larger than that of the second pipe member 32. A third pipe member 33 made of a small cylindrical body is provided.

  The first pipe member 31 is a first-stage pipe member that is the outermost part, and is rotatably attached to the shaft base 21 of the second shaft portion 14. A second pipe member 32 can be stored in the first pipe member 31 in a nested manner. In the second pipe member 32, a third pipe member 33 can be stored in a nested manner. The third pipe member 33 is a final-stage pipe member that is the innermost. A cap 35 that is in contact with the placement surface is attached to the tip of the third pipe member 33.

  Further, a locking member 24 is attached to the shaft base 21 to lock the movement of the third pipe member 33, which is the final stage pipe member, in the pulling direction when the support leg 3 is contracted. The locking member 24 includes a rod-shaped mounting portion 24a attached to the shaft base 21 and a disk-shaped locking portion 24b provided at the tip of the mounting portion 24a. The attachment portion 24 a is disposed at the center of the three support legs 3 and is set to have substantially the same length as the first pipe member 31. In the present embodiment, the mounting portion 24a is formed in a rod shape, but the mounting portion according to the present invention may be formed in a pipe shape, for example. In a state where the support leg 3 is contracted, the lower portions of the caps 35 attached to the three third pipe members 33 are brought into contact with the locking portion 24b.

  Next, the 1st-3rd pipe members 31-33 of the support leg 3 are demonstrated with reference to FIG.3 and FIG.4. FIG. 3 is a cross-sectional view showing an extended state in which the support leg 3 is extended most, and FIG. 4 is a cross-sectional view showing a contracted state of the support leg 3.

  As shown in FIGS. 3 and 4, the first pipe member 31 of the support leg 3 is provided with a restriction receiving portion 31 a that restricts the drawing of the second pipe member 32. The restriction receiving portion 31a is formed by setting the tip of the first pipe member 31 on the opposite side to the camera fixing member 2 (hereinafter referred to as “lower side”) to have a smaller diameter than the other cylindrical portion. Yes. As shown in FIG. 3, in the extended state of the support leg 3, a later-described locking projection 32 b of the second pipe member 32 is engaged with the restriction receiving portion 31 a of the first pipe member 31.

  The second pipe member 32 includes a restriction receiving portion 32a for restricting the pulling out of the third pipe member 33, a locking projection 32b engaged with the restriction receiving portion 31a of the first pipe member 31, and an auxiliary A protrusion 32c is provided. The restriction receiving part 32a is formed by making the lower end of the second pipe member 32 smaller in diameter than the other cylindrical part, like the restriction receiving part 31a of the first pipe member 31. Yes. As shown in FIG. 3, in the extended state of the support leg 3, a locking projection 33 b, which will be described later, of the third pipe member 33 is engaged with the restriction receiving portion 32 a of the second pipe member 32.

  The locking projection 32b and the auxiliary projection 32c are provided at the end of the second pipe member 32 on the camera fixing member 2 side (hereinafter referred to as “upper side”). The locking protrusions 32b and the auxiliary protrusions 32c are formed in the same shape as the protrusions that are continuous in the circumferential direction of the second pipe member 32 and protrude outward in the radial direction. The auxiliary projection 32c is arranged at the upper end of the second pipe member 32, and the locking projection 32b is arranged at an appropriate interval in the axial direction from the auxiliary projection 32c. By providing the auxiliary protrusion 32c, the play of the second pipe member 32 with respect to the first pipe member 31 can be prevented or reduced.

  At the upper end of the third pipe member 33, a locking projection 33b and an auxiliary projection 33c that are engaged with the restriction receiving portion 32a of the second pipe member 32 are provided. These locking projections 33b and auxiliary projections 33c are respectively continuous with the circumferential direction of the third pipe member 33 in the radial direction, like the locking projections 32b and auxiliary projections 32c of the second pipe member 32. It is formed in the same shape as the protrusion protruding outside. By providing the auxiliary protrusion 33c, the play of the third pipe member 33 with respect to the second pipe member 32 can be prevented or reduced.

  The support leg 3 includes a first fixing mechanism 41 for fixing the second pipe member 32 to the first pipe member 31, and a third pipe member 33 to the second pipe member 32. A second fixing mechanism 42 for fixing is provided.

  The first fixing mechanism 41 is engaged with a first stator 44 fitted into the upper opening of the second pipe member 32 and an inclined portion 44b described later of the first stator 44. 1 contact 45. The second fixing mechanism 42 is engaged with a second stator 47 fitted into the upper cylindrical hole of the third pipe member 33 and an inclined portion 47b described later of the second stator 47. The second contact 48 is formed. In other words, the first and second stators 44 and 47 are cylindrical holes on the upper side of the second and third pipe members 32 and 33 that are pipe members excluding the first pipe member 31 (first-stage pipe member). Respectively.

  Next, the first fixing mechanism 41 will be described with reference to FIG. FIG. 5 is a perspective view of a state where the first fixing mechanism 41 is removed from the second pipe member 32.

  As shown in FIG. 5, the first stator 44 of the first fixing mechanism 41 is formed of a cylindrical body that matches the cylindrical hole of the second pipe member 32. The first stator 44 has a gap 51 (see FIGS. 3 and 4) between a columnar protrusion 44a protruding from the center of the lower surface and the inner surface of the first pipe member 31. An inclined portion 44b is provided.

  In the present embodiment, the first stator 44 is fitted in a state of being arranged inside the second pipe member 32 and is fixed by a fixing method such as an adhesive, a fixing screw, and caulking. Therefore, the second pipe member 32 is provided with a window portion 32 d that exposes the inclined portion 44 b of the first stator 44 in order to form the gap portion 51.

  The inclined portion 44 b is formed by providing an arc-shaped groove in the first stator 44. The inclined portion 44b extends from the axial intermediate portion to the tip of the protruding portion 44a, and is inclined so as to become narrower as the gap portion 51 reaches the lower side. The lower side of the gap 51 communicates with the inside of the second pipe member 32 (see FIGS. 3 and 4).

  The first contact 45 of the first fixing mechanism 41 is composed of a sphere set to have a radius equal to the radius of curvature of the inclined portion 44 b provided on the first stator 44, and is movably interposed in the gap 51. The When the first contactor 45 moves downward due to gravity, the first contactor 45 moves along the inclined portion 44b of the first stator 44 and is pressed against the inner surface of the first pipe member 31 by the inclined portion 44b. . Thereby, the frictional resistance generated between the first contact 45 and the inclined portion 44b, the frictional resistance generated between the first contact 45 and the inner surface of the first pipe member 31, and the second pipe The second pipe member 32 is fixed to the first pipe member 31 by the frictional resistance generated between the locking protrusion 32b and the auxiliary protrusion 32c of the member 32 and the inner surface of the first pipe member 31 (FIG. 3).

  Next, the second fixing mechanism 42 will be described with reference to FIG. FIG. 6 is a perspective view of the third pipe member 33 with the second fixing mechanism 42 removed.

  As shown in FIG. 6, the second stator 47 of the second fixing mechanism 42 has the same shape as the first stator 44. The difference is that the stator side pressing provided on the upper surface is different. Only the portion 47c is provided. In other words, the second stator 47 has a gap 52 (see FIGS. 3 and 4) between the columnar protrusion 47a protruding from the center of the lower surface and the inner surface of the second pipe member 32. ) And a stator side pressing portion 47c protruding from the upper surface.

  In the present embodiment, the second stator 47 is fitted in a state of being arranged inside the third pipe member 33 and is fixed by a fixing method such as an adhesive, a fixing screw, and caulking. Therefore, the third pipe member 33 is provided with a window portion 33 d that exposes the inclined portion 47 b of the second stator 47 in order to form the gap portion 52.

  The inclined portion 47 b is formed by providing an arc-shaped groove in the second stator 47, similarly to the inclined portion 44 b of the first stator 44. The inclined portion 47b extends from the axial intermediate portion to the tip of the protruding portion 47a, and is inclined so that the gap portion 52 becomes narrower toward the lower side. The lower side of the gap 52 communicates with the inside of the third pipe member 33 (see FIGS. 3 and 4).

The stator side pressing portion 47c of the second stator 47 is formed as a ring-shaped protrusion. When the third pipe member 33 is housed in the second pipe member 32, the protruding portion 44a of the first stator 44 is inserted into the circular recess 47d that forms the inner surface of the stator side pressing portion 47c. The At that time, the stator side pressing portion 47c presses the first contact 45 pressed against the inner surface of the first pipe member 31 by the inclined portion 44b of the first stator 44 (see FIG. 4). ). As a result, the first contact 45 moves upward and the fixation of the second pipe member 32 to the first pipe member 31 is released.

  In the present embodiment, since the stator side pressing portion 47c is formed in a ring shape, even if the third pipe member 33 rotates around the axis with respect to the second pipe member 32, the stator side pressing portion 47c The first contact 45 can be surely pressed.

  The second contact 48 of the second fixing mechanism 42 is formed of a sphere having a radius equal to the radius of curvature of the inclined portion 47b, and is movably interposed in the gap 52. When the second contactor 48 moves downward due to gravity, the second contactor 48 moves along the inclined portion 47b and is pressed against the inner surface of the second pipe member 32 by the inclined portion 47b. Thereby, the frictional resistance generated between the second contact 48 and the inclined portion 47b, the frictional resistance generated between the second contact 48 and the inner surface of the second pipe member 32, and the third pipe The second pipe member 32 and the third pipe member 33 are relatively fixed by the frictional resistance generated between the locking projection 33b and the auxiliary projection 33c of the member 33 and the inner surface of the second pipe member 32. (See FIG. 3).

  Further, a movable element 49 is accommodated inside the third pipe member 33 which is the final stage pipe member (see FIGS. 3 and 4). The mover 49 is a cylindrical body having a diameter corresponding to the cylindrical hole of the third pipe member 33, and is movable in the axial direction of the third pipe member 33.

  A mover side pressing portion 49 a is provided on the upper surface of the mover 49. The mover side pressing portion 49a is formed as a ring-shaped protrusion. The circular recess 49b that forms the inner surface of the mover side pressing portion 49a is set to a size that allows the protrusion 47a of the second stator 47 fixed to the third pipe member 33 to be inserted.

  When the support leg 3 is oriented upward in a state in which the support leg 3 is extended, the mover 49 falls due to gravity, and the protrusion 47a of the second stator 47 is placed in the recess 49b of the mover-side pressing part 49a. Inserted. At that time, the mover side pressing portion 49a presses the second contact 48 pressed against the inner surface of the second pipe member 32 by the inclined portion 47b of the second stator 47 (see FIG. 4). ). As a result, the second contactor 48 moves upward, and the fixation of the third pipe member 33 to the second pipe member 32 is released.

In the present embodiment, since the mover side pressing portion 49a is formed in a ring shape, even if the mover 49 rotates around the axis inside the third pipe member 33, the second mover side pressing portion 49a The contact 48 can be always pressed.

  Next, the extending | stretching operation | movement of the support leg 3 is demonstrated with reference to FIG.4 and FIG.7 A-FIG.7C. FIG. 7A is an explanatory view showing a state where the second and third pipe members 32, 33 of the support leg 3 are being pulled out from the first pipe member 31. 7B is an explanatory diagram of a state in which the second pipe member 32 is fixed to the first pipe member 31, and FIG. 7C is an explanatory diagram of a state in which the third pipe member 33 is fixed to the second pipe member 32. is there.

  In order to extend the length of the support leg 3, first, the three support legs 3 in a contracted state are directed upward. At this time, since the first contact 45 is pressed upward by the stator-side pressing portion 47 c of the second stator 47, the fixing of the second pipe member 32 to the first pipe member 31 is released. ing. In addition, since the second contact 48 is pressed upward by the mover side pressing portion 49a of the mover 49, the fixation of the third pipe member 33 to the second pipe member 32 is released.

  Next, the three support legs 3 are rotated so as to open, and the engagement between the third pipe member 33 and the locking member 24 is released. Then, the support leg 3 is directed downward. As a result, the second pipe member 32 is automatically pulled out by gravity in a state where the third pipe member 33 is accommodated.

  As shown in FIG. 7A, when the second pipe member 32 is pulled out from the first pipe member 31, the first contactor 45 includes a first stator 44 fixed to the second pipe member 32. Move together. Therefore, the first contact 45 is not pressed against the inner surface of the first pipe member 31, and the second pipe member 32 is smoothly pulled out from the first pipe member 31.

  As shown in FIG. 7B, when the locking projection 32 b of the second pipe member 32 engages with the restriction receiving portion 31 a of the first pipe member 31, the drawing operation of the second pipe member 32 is stopped. Then, the third pipe member 33 is automatically pulled out from the second pipe member 32. At this time, the second contact 48 moves together with the second stator 47 fixed to the third pipe member 33. Therefore, the second contact 48 is not pressed against the inner surface of the second pipe member 32, and the third pipe member 33 is smoothly pulled out from the second pipe member 32.

  When the pulling-out operation of the second pipe member 32 is stopped, the first contact 45 is dropped by gravity and moves in the gap 51 along the inclined portion 44b of the first stator 44. That is, the first contact 45 moves in the pulling direction of the second and third pipe members 32 and 33 by gravity. The first contact 45 is pressed against the inner surface of the first pipe member 31 by the inclined portion 44b. As a result, frictional resistance is generated between the first contact 45 and the first stator 44, and frictional resistance is generated between the first contact 45 and the inner surface of the first pipe member 31. Further, a frictional resistance is generated between the locking projection 32 b and the auxiliary projection 32 c of the second pipe member 32 and the inner surface of the first pipe member 31. As a result, the second pipe member 32 is fixed to the first pipe member 31.

  The pulling-out operation of the third pipe member 33 is stopped when the cap 35 comes into contact with the placement surface and when the locking projection 33b is engaged with the restriction receiving portion 32a of the second pipe member 32. . FIG. 7C shows a state in which the cap 35 is in contact with the placement surface and the drawing operation of the third pipe member 33 is stopped.

  As shown in FIG. 7C, when the pulling-out operation of the third pipe member 33 is stopped, the second contactor 48 falls due to gravity, and the inclined portion 47b of the second stator 47 moves in the gap 52. Move along. That is, the second contactor 48 moves in the pull-out direction of the second and third pipe members 32 and 33 by gravity. Then, the second contact 48 is pressed against the inner surface of the second pipe member 32 by the inclined portion 47b. Thereby, a frictional resistance is generated between the second contactor 48 and the second stator 47, and a frictional resistance is generated between the second contactor 48 and the inner surface of the second pipe member 32. Further, a frictional resistance is generated between the locking projection 33 b and the auxiliary projection 33 c of the third pipe member 33 and the inner surface of the second pipe member 32. As a result, the third pipe member 33 is fixed to the second pipe member 32, and the extension operation of the support leg 3 is completed.

  In addition, the tripod 1 of this Embodiment can also extend the support leg 3 to arbitrary length. In that case, the support leg 3 in the contracted state (see FIG. 4) is made substantially parallel to the horizontal direction, and the second pipe member 32 and the third pipe member 33 are pulled out to an arbitrary length by hand. At this time, the first and second contacts 45 and 48 move together with the first and second stators 44 and 47, respectively. Therefore, the first and second contactors 45 and 48 are not pressed against the inner surfaces of the first and second pipe members 31 and 32, and the second and third pipe members 32 and 33 are pulled out smoothly. Can do.

  Next, the third pipe member 33 is gripped, and the tripod 1 is rotated approximately 90 degrees so that the third pipe member 33 is positioned below. When the tripod 1 is rotated by approximately 90 degrees, the first and second contacts 45 and 48 are dropped by gravity and move in the gaps 51 and 52, respectively. Then, the first contact 45 is pressed against the inner surface of the first pipe member 31 by the inclined portion 44b, and the second contact 48 is pressed against the inner surface of the second pipe member 32 by the inclined portion 47b. As a result, the second pipe member 32 is fixed to the first pipe member 31 and the third pipe member 33 is fixed to the second pipe member 32. As a result, the support leg 3 can be extended to an arbitrary length.

  In order to change the support leg 3 from the extended state to the contracted state, the third pipe member 33 of the support leg 3 is directed upward. Thereby, the needle | mover 49 accommodated in the inside of the 3rd pipe member 33 falls by gravity. Then, the mover side pressing portion 49 a presses the second contact 48 that is pressed against the inner surface of the second pipe member 32 by the inclined portion 47 b of the second stator 47 toward the camera fixing member 2. As a result, the second contact 48 moves to the camera fixing member 2 side, and the fixing of the third pipe member 33 to the second pipe member 32 is released.

When the fixing of the third pipe member 33 is released, the third pipe member 33 moves in the second pipe member 32 by gravity and is stored in the second pipe member 32. At this time, the stator side pressing portion 47c of the second stator 47 fixes the first contactor 45 pressed against the inner surface of the first pipe member 31 by the inclined portion 44b of the first stator 44 to the camera. Press toward the member 2 side. As a result, the first contact 45 moves to the camera fixing member 2 side, and the fixing of the second pipe member 32 to the first pipe member 31 is released.

  When the fixation of the second pipe member 32 is released, the second pipe member 32 that houses the third pipe member 33 moves in the first pipe member 31 by gravity, and the first pipe member 31. Thereby, the support leg 3 will be in a contracted state. That is, according to the tripod 1 of the present embodiment, the support leg 3 can be easily contracted simply by turning the third pipe member 33 of the support leg 3 upward.

  In the tripod 1 of the present embodiment, the movable element side pressing portion 49a of the movable element 49 is formed as a ring-shaped protrusion, but the movable element according to the present invention is not limited to this. FIG. 8 shows another example of the mover according to the present invention.

  As shown in FIG. 8, the mover 61 is housed inside the third pipe member 33, and a mover body 62 that can move in the axial direction of the third pipe member 33 and a press that penetrates the stator 47. It consists of a member 63. The mover main body 61 is a cylindrical body having a diameter corresponding to the cylindrical hole of the third pipe member 33.

  The pressing member 63 is a specific example of the mover side pressing portion, and is configured separately from the mover main body 62. The pressing member 63 includes a shaft 63a that slidably passes through the stator 47, and a pressing piece 63b provided at the tip of the shaft 63a on the camera fixing member 2 side. The stator 47 fixed to the third pipe member 33 is provided with a through hole 47e that allows the shaft 63a of the pressing member 63 to pass through without providing the protruding portion 47a (see FIG. 3).

  The pressing piece 63b of the pressing member 63 is formed larger than the through hole 47e of the stator 47 so that the pressing member 63 does not fall out of the through hole 47e. Further, the shaft 63a is set to such a length that the tip of the shaft 63a on the movable element main body 62 side does not come out of the through hole 47e even when the pressing member 63 moves most to the camera fixing member 2 side.

  Here, the operation of the mover 61 will be described. When the third pipe member 33 of the support leg 3 is directed upward, the mover main body 62 housed inside the third pipe member 33 falls due to gravity and presses the shaft 63a of the pressing member 63. As a result, the pressing member 63 moves to the camera fixing member 2 side along the through hole 47e, and the pressing piece 63b is pressed against the inner surface of the second pipe member 32 by the inclined portion 47b of the second stator 47. The second contact 48 is pressed toward the camera fixing member 2 side. As a result, the second contact 48 moves to the camera fixing member 2 side, and the fixing of the third pipe member 33 to the second pipe member 32 is released.

  When the protrusion 47a is provided on the stator 47 (see FIG. 3), most of the protrusion 47a is cut away by forming the inclined portion 47b. This is because the diameter of the stator becomes smaller as the final pipe member is reached. If most of the protrusion 47a is cut away, the strength of the stator 47 may be weakened. However, when the above-described movable element 61 is applied, there is no need to provide the protrusion 47 a on the stator 47, so there is no fear that the strength of the stator 47 will be weakened and the impact resistance of the stator 47 is improved. be able to.

  In the tripod 1 of the present embodiment, the support leg is configured by the three pipe members 31 to 33. However, the support leg according to the present invention may be configured by two pipe members, or four. You may comprise with the above pipe member. When the supporting leg is constituted by two pipe members and the first pipe member is the first pipe member, the mover is arranged inside the second pipe member which is the final pipe member. And the stator without a stator side press part is fitted by the upper side of the 2nd pipe member. By comprising in this way, a support leg can be made into a contracted state only by orienting the 2nd pipe member upward.

  For example, when the supporting leg is constituted by four pipe members and the first pipe member is the first pipe member, the fixing without the stator side pressing portion is fitted to the second pipe member, A stator having a stator side pressing portion is fitted to the third pipe member and the fourth pipe member. In other words, the stator having the fixed-side pressing portion is fixed to the pipe members excluding the second pipe member which is a pipe member inside one of the first-stage pipe members. And a needle | mover is arrange | positioned inside the 4th pipe member which is a pipe member of the last stage. By comprising in this way, a support leg can be made into a contracted state only by orienting a 4th pipe member upward.

  Moreover, in the tripod 1 of this Embodiment, although the 1st-3rd pipe members 31-33 were cylindrical bodies, as a pipe member which concerns on this invention, it is good also as a square cylinder. In this case, since the second and third pipe members 32 and 33 do not rotate about the axis, the stator-side pressing portion 47 c provided on the second stator 47 is not connected to the first stator 44. What is necessary is just to provide in the position corresponding to the inclination part 44b.

  Further, in the tripod 1 of the present embodiment, the first and second stators 44 and 47 are arranged inside the second and third pipe members 32 and 33, respectively. The child may have a configuration in which an upper portion protrudes from a cylindrical hole of the pipe member. In that case, the pipe member to which the stator is fixed is provided with a notch corresponding to the inclined portion provided in the stator.

  In addition, in the tripod 1 of the present embodiment, the inclined portions 44b and 47b of the first and second stators 44 and 47 are formed in an arc shape, but the inclined portion according to the present invention includes a U-shaped cross section, You may form on a plane. In addition, the contact according to the present invention is not limited to a sphere, and may have a barrel shape or an elliptical cross section.

  As described above, the camera support of the present invention presses the contact moved in the extending direction of the support leg due to gravity to the inner surface of the pipe member corresponding to the inclined portion by the inclined portion of the stator. Thus, between the inclined portion and the contact, between the inner surface of the pipe member outside the pipe member to which the stator is attached and the contact, the outer surface of the pipe member to which the stator is attached, and A frictional resistance is generated between the inner surface of the outer pipe member. As a result, the pipe member to which the stator is attached can be fixed to the outer pipe member. Therefore, the pipe member is automatically pulled out with the support leg in the contracted state facing downward, and the pipe member can be fixed only by stopping the pull-out operation of the pipe member. It can be done very easily.

  Further, the camera support of the present invention is configured such that the movable element provided with the movable element side pressing portion is movably accommodated in the final stage pipe member. Therefore, when the mover moves upward in the final stage pipe member, the movable part side pressing portion of the mover is one of the final stage pipe members by the inclined portion of the stator fixed to the final stage pipe member. The contact pressed against the inner surface of the outer pipe member is pressed upward. Thereby, the contactor pressed by the mover side pressing portion moves upward, and the fixing of the pipe member at the final stage is released. Therefore, when the support leg is constituted by two pipe members, the support leg can be easily contracted simply by turning the pipe member at the final stage upward.

  Furthermore, the camera support of the present invention is configured such that the stator side pressing portion is provided on the stator excluding the stator fixed to the pipe member inside one of the first stage pipe members. For example, it is assumed that the final pipe member is accommodated in one outer pipe member. In this case, the stator-side pressing portion of the stator fixed to the final-stage pipe member is divided into two of the final-stage pipe member by the inclined portion of the stator fixed to the outer pipe member of the final-stage pipe member. The contact pressed against the inner surface of the outer pipe member is pressed upward. Thereby, the contact member pressed by the stator side pressing portion moves upward, and the fixing of the pipe member on the outer side of one of the final-stage pipe members is released. Therefore, even when the supporting leg is constituted by three or more pipe members, the fixing of the pipe members excluding the first stage pipe member can be released sequentially by simply turning the final stage pipe member upward. The support leg can be easily contracted.

  In addition, according to the camera support of the present invention, each stator is disposed at the end of the camera fixing member side (upper side) inside the pipe member excluding the first stage pipe member. The length that can be pulled out with respect to the total length of each pipe member except for can be increased.

  Further, the camera support of the present invention is configured to attach the locking member to the camera fixing member or the first stage pipe member. The locking member locks the movement of the pipe member at the final stage in a state where the support leg is contracted. Therefore, the tripod can be carried with the pipe member at the final stage of the support leg directed downward.

  The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention. In the above-described embodiment, a tripod has been described as an example of the camera support. However, the camera support of the present invention may be, for example, a monopod having one extendable support leg, or two or four. It is good also as another camera support provided with the support leg more than this.

It is the perspective view of the state which extended the support leg of the tripod which shows one Embodiment of the camera support tool of this invention most. It is a perspective view of the state which contracted the support leg of the tripod which shows one Embodiment of the camera support tool of this invention. It is sectional drawing of the state which extended the support leg of the tripod which shows one Embodiment of the camera support tool of this invention most. It is sectional drawing of the state which contracted the support leg of the tripod which shows one Embodiment of the camera support tool of this invention. It is a disassembled perspective view which shows the 1st fixing mechanism which concerns on the tripod which shows one Embodiment of the camera support tool of this invention. It is a disassembled perspective view which shows the 2nd fixing mechanism which concerns on the tripod which shows one Embodiment of the camera support tool of this invention. FIGS. 7A and 7B are explanatory views showing a state in which the second and third pipe members are pulled out, and FIGS. FIG. 7C is an explanatory diagram of a state where the second pipe member is fixed to the first pipe member, and FIG. 7C is an explanatory diagram of a state where the third pipe member is fixed to the second pipe member. It is explanatory drawing which shows the modification of the needle | mover which concerns on one Embodiment of the camera support tool of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Tripod (camera support tool), 2 ... Camera fixing member, 3 ... Support leg, 24 ... Locking member, 31 ... 1st pipe member (first stage pipe member), 32 ... 2nd pipe member, 32d , 33d ... windows, 33 ... third pipe member (final pipe member), 35 ... cap, 41 ... first fixing mechanism, 42 ... second fixing mechanism, 44 ... first stator, 44b , 47b ... inclined portion, 45 ... first contact, 47 ... second stator, 47c ... stator side pressing portion, 48 ... second contact, 49, 61 ... mover, 49a, ... mover. Side pressing part 51, 52 ... Gap part 62 ... Movable body main body 63 ... Pressing member 63a ... Shaft 63b Pressing piece

Claims (5)

A camera fixing member to which the imaging device is fixed;
A plurality of pipe members connected in a nested manner, and a support leg on which a first-stage pipe member that is the outermost part is attached to the camera fixing member;
A stator provided with an inclined portion that is fixed to each of the pipe members excluding the pipe member at the first stage and that forms a gap portion with the inner surface of the pipe member that is one outer side of the fixed pipe member;
When the tip of the final-stage pipe member is directed downward, it is moved in the gaps and moved in the pull-out direction of the pipe members excluding the first- stage pipe member. Contacts that are respectively pressed against the inner surface of the pipe member corresponding to the section;
It is housed inside the final stage pipe member, and when the tip of the final stage pipe member is directed upward, it is moved by the action of gravity, and the stator slopes fixed to the final stage pipe member. A mover that presses a contact member pressed against the inner surface of one outer pipe member of the final stage pipe member and moves the contact member to a position where it is not pressed against the inner surface of the outer pipe member of the final stage pipe member; A camera support device comprising: The movable element has a contact portion pressed against an inner surface of the pipe member on the outer side of the final stage pipe member by an inclined portion of a stator fixed to the final stage pipe member. The camera support according to claim 1, further comprising: a mover-side pressing portion that presses the movable member side. The stator excluding the stator fixed to the inner pipe member of the first stage pipe member has the inclined portion by the inclined portion of the stator fixed to the outer pipe member of the fixed pipe member. 3. The camera support according to claim 1, further comprising: a stator side pressing portion that presses a contact member pressed against an inner surface of the pipe member corresponding to 1 to the camera fixing member side. Each stator is disposed inside the pipe member excluding the first-stage pipe member and at an end portion on the camera-fixing member side, and the pipe members excluding the first-stage pipe member are respectively connected to the stators. It has a window part which exposes an inclined part. The camera support tool in any one of Claims 1-3 characterized by the above-mentioned. A locking member attached to the camera fixing member or the first-stage pipe member and further configured to lock the movement of the final-stage pipe member in a state where the support leg is contracted. The camera support in any one of 1-4.

Images