CN101470331B

CN101470331B - Camera support instrument

Info

Publication number: CN101470331B
Application number: CN2008101911143A
Authority: CN
Inventors: 大关英也
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-28
Filing date: 2008-12-26
Publication date: 2012-07-04
Anticipated expiration: 2028-12-26
Also published as: HK1132337A1; CN101470331A; JP4547542B2; JP2009162859A

Abstract

The present invention provides a camera supporter which can simply execute the operation for extending the supporting leg. A tripod (1) comprises a camera fixing component (2), three supporting legs (3), a first fixing component (44) which is installed with an inclining part (44b), a second fixing component (47) which is installed with an inclining part (47b), a first abutting component (45) and a second abutting component (48). Each supporting leg (3) is provided with a first pipe component (31) which is installed on the camera fixing component (2), a second pipe component (32) which fixes the first fixing component (44), and a third pipe component (33) which fixes the second fixing component (47). The inclining part (44b) of the first fixing component (44) fixes the second pipe component (32) through pressing the first abutting component (45) on the inner surface of the first pipe component (31). Additionally, the inclining part (47b) of the second fixing component (47) fixes the third pipe component (33) through pressing the second abutting component (48) on the inner surface of the second pipe component (32).

Description

Camera support instrument

Technical field

The present invention relates to a kind of camera support instrument that is used to support camera heads such as still image camera, video camera.

Background technology

In the past, utilize camera head autodyne photography, when adopting the photography of remote controller, use the camera support instruments such as single-leg bracket, tripod of this camera head of supporting.Such camera support instrument generally comprises camera fixed component that is used for fixing camera and the supporting leg that is used to support the camera fixed component.

As such camera support instrument, for example have and put down in writing such type in the patent documentation 1.In patent documentation 1, the telescopic camera that records photographies such as being used for still image camera, video camera is used tripod.Manage and the structure of the 4th section pipe by the 2nd section pipe that diameter reduces successively, the 3rd section in order in the 1st section pipe, to take in respectively with nested shape for the supporting leg that the camera put down in writing in this patent documentation 1 uses tripod.And, except the 4th section the pipe, be respectively equipped with set nut in the lower end periphery of the 1st～3rd section pipe, make that being incorporated in inboard pipe can fix with outstanding length arbitrarily.

Patent documentation 1: japanese kokai publication hei 8-285178 communique

But, the camera of in patent documentation 1, being put down in writing with tripod in, making supporting leg when elongation, need carry out following such operation.At first, through loosening to side's rotation lock nut to being incorporated in the fastening of inboard pipe.Then, after having changed the outstanding length that is accommodated in inboard pipe, through come fastening fixing should the pipe to the opposing party's rotation lock nut.Therefore, the camera of in patent documentation 1, being put down in writing with tripod in, exist in the supporting leg time-consuming and bothersome such problem of when elongation that makes.

Summary of the invention

The present invention considers the problems referred to above and makes that its purpose is to provide a kind of camera support instrument that can make the operation of supporting leg elongation simply.

In order to solve above-mentioned problem, realize the object of the invention, the main of camera support instrument of the present invention is characterised in that it comprises: the camera fixed component, it is used for fixing camera head; Supporting leg, it has a plurality of pipe components that are connected with nested shape, and will be installed on the camera fixed component as outermost beginning section pipe component; Fixture, it is separately fixed on the pipe component except beginning section pipe component, and is provided with the rake of formation clearance portion between the inside surface that is used for the pipe component in 1 outside of the pipe component that has been fixed; Fitting, it is located in respectively in each clearance portion movably, when the pipe component except beginning section pipe component because of gravity to stretching out direction when moving, fitting is pushed on the inside surface with the corresponding pipe component of this rake by the rake of each fixture.

In camera support instrument of the present invention,, be installed with the pipe component of fixture because of gravity is pushed on the inside surface with the corresponding pipe component of this rake to the rake of the fitting fixture that the prolonging direction of supporting leg moves.

Adopt camera support instrument of the present invention, the supporting leg that only makes contraction state just can make pipe component automatically stretch out towards the below, only stops the action of stretching out of this pipe component, just can carry out the fixing of pipe component.Consequently, can make the operation of supporting leg elongation extremely simply.

Description of drawings

Fig. 1 makes the supporting leg of tripod of an embodiment of expression camera support instrument of the present invention be the stereographic map of elongation state.

Fig. 2 is the stereographic map that makes the state that the supporting leg of tripod of an embodiment of expression camera support instrument of the present invention shrinks.

Fig. 3 makes the supporting leg of tripod of an embodiment of expression camera support instrument of the present invention be the cut-open view of elongation state.

Fig. 4 is the cut-open view that makes the state that the supporting leg of tripod of an embodiment of expression camera support instrument of the present invention shrinks.

Fig. 5 is the exploded perspective view of the 1st fixed mechanism of the tripod of an embodiment of expression camera support instrument of the present invention.

Fig. 6 is the exploded perspective view of the 2nd fixed mechanism of the tripod of an embodiment of expression camera support instrument of the present invention.

Fig. 7 is the figure of elongation action of supporting leg of tripod that is used to explain an embodiment of expression camera support instrument of the present invention; The A of Fig. 7 is the key diagram of the state that stretches out of the 2nd, the 3rd pipe component, and the B of Fig. 7 is for being fixed in the 2nd pipe component the key diagram of the state on the 1st pipe component, and the C of Fig. 7 is for being fixed in the 3rd pipe component the key diagram of the state on the 2nd pipe component.

Fig. 8 is the key diagram of the variation of the movable piece of an embodiment of expression camera support instrument of the present invention.

Embodiment

Below, describe with reference to the preferred form of accompanying drawing the camera support instrument that is used for embodiment of the present invention, still, the present invention is not limited to following form.

Fig. 1 is the stereographic map of the elongation state of supporting leg of tripod that makes an embodiment of expression camera support instrument of the present invention, and Fig. 2 is the stereographic map that makes the state that this supporting leg shrinks.

As depicted in figs. 1 and 2, the tripod 1 of an embodiment of representing camera support instrument of the present invention is by camera fixed component that is used for fixing camera head (figure do not show) 2 and 3 supporting legs, 3 formations such as grade that are used to support this camera fixed component 2.

Camera fixed component 2 comprises camera fixed station 12, make camera fixed station 12 vertically Y (pitch orientation) but support rotationally camera fixed station 12 the 1st axial region 13, make the 1st axial region 13 along continuous straight runs X (pan) support the 2nd axial region 14 of the 1st axial region 13 etc. rotationally.

Camera fixed station 12 is put carrying of camera head and puts portion 16 and constitute with the outstanding continuously and downwards bearing portion 17 of a side of putting portion 16 this year by being used for carrying.The carrying of camera fixed station 12 put portion 16 and to be provided with gib screw 18, this gib screw 18 be used for the bottom surface that is arranged at camera head on tripod screw togather with threaded hole (scheming not show).In addition, the handle 19 that is used for rotating operation camera fixed station 12 is installed in bearing portion 17.

The 1st axial region 13 forms roughly rectangular parallelepiped.On a side of the 1st axial region 13, be provided with generally perpendicularly outstanding chimeric axle (figure does not show), the bearing portion 17 of chimeric rotationally camera fixed station 12 on this chimeric axle.That is, the 1st axial region 13 utilizes vertically Y rotatably support camera fixed station 12 of chimeric axle.In addition, be provided with on the bottom surface of the 1st axial region 13 rotationally with the 2nd axial region 14 after the dead eye (figure does not show) of chimeric axle 22 tablings stated.

The 2nd axial region 14 comprises a pedestal 21 and the chimeric axle of generally perpendicularly giving prominence to from the upper surface of this pedestal 21 22.As stated, the chimeric axle 22 of the 2nd axial region 14 rotationally with dead eye (figure does not show) tabling of the 1st axial region 13.That is, the 2nd axial region 14 utilizes chimeric axle 22 along continuous straight runs X to make the 1st axial region 13 rotatably supports the 1st axial region 13.Thus, camera fixed station 12 can rotate by the 1st axial region 13 along continuous straight runs X.

3 supporting legs 3 with same structure are installed in the bottom of axle pedestal 21.The 2nd pipe component 32 that this supporting leg 3 comprises the 1st pipe component 31 that formed by cylinder, formed less than the cylinder of the 1st pipe component 31 by diameter, the 3rd pipe component 33 that forms less than the cylinder of the 2nd pipe component 32 by diameter.

The 1st pipe component 31 is the pipe component as outermost beginning section, and the 1st pipe component 31 is rotatably installed on the axle pedestal 21 of the 2nd axial region 14.The 1st pipe component 31 can be taken in the 2nd pipe component 32 with nested shape.The 2nd pipe component 32 can be taken in the 3rd pipe component with nested shape.The 3rd pipe component 33 is the pipe component as inner most terminal section.On the leading section of the 3rd pipe component 33, be equipped with and carry and put the bottom 35 that face connects.

In addition, fastening member 24 is installed on axle pedestal 21, under the state that supporting leg 3 is shunk, this fastening member 24 be used for fastening as the 3rd pipe component 33 of terminal section pipe component to stretching out moving of direction.This fastening member 24 is made up of with the discoideus 24b of fastening portion that is arranged on the leading section of this installation portion 24a the bar-shaped installation portion 24a that is installed on the pedestal 21.Installation portion 24a is disposed at the center of 3 supporting legs 3, is set at the length roughly the same with the 1st pipe component 31.In this embodiment, installation portion 24a forms bar-shaped, but as installation portion of the present invention, for example also can be and form tubulose.Under the state that supporting leg 3 contractions are got up, the bottom that is installed on 3 the 3rd each bottom 35 on the pipe component 33 connects with the 24b of fastening portion respectively.

Below, with reference to Fig. 3 and Fig. 4 the 1st pipe component 31～the 3rd pipe component 33 of supporting leg 3 is described.Fig. 3 makes the cut-open view of the elongation state of elongation of supporting leg 3 for expression, and Fig. 4 is the cut-open view of the contraction state of expression supporting leg 3.

Like Fig. 3 and shown in Figure 4, on the 1st pipe component 31 of supporting leg 3, be provided with the restriction carrier 31a that stretches out that is used to limit the 2nd pipe component 32.This restriction carrier 31a becomes diameter through the front end with camera fixed component 2 opposite sides (below be called " downside ") with the 1st pipe component 31 and forms less than the diameter of other shell portions.As shown in Figure 3, under the state of supporting leg 3 elongations, the fastening teat 32b that states behind the restriction carrier 31a of the 1st pipe component 31 and the 2nd pipe component 32 fastens.

On the 2nd pipe component 32, be provided with the restriction carrier 32a that stretches out that is used to limit the 3rd pipe component 33, engage teat 32b, auxiliary teat 32c with the restriction carrier 31a of the 1st pipe component 31 fastens.Carrier 32a is identical with the restriction carrier 31a of the 1st pipe component 31 in restriction, becomes diameter through the front end with the 2nd pipe component 32 downsides and forms less than the diameter of other shell portions.As shown in Figure 3, under the state of supporting leg 3 elongations, the fastening teat 33b that states behind the restriction carrier 32a of the 2nd pipe component 32 and the 3rd pipe component 33 fastens.

Fastening teat 32b and auxiliary teat 32c are arranged at the end of camera fixed component 2 sides (below be called " upside ") of the 2nd pipe component 32.Above-mentioned fastening teat 32b and auxiliary teat 32c be the circumferentially continuous and teat that give prominence to the radial direction outside of conduct edge the 2nd pipe component 32 respectively, and forms identical shaped.Auxiliary teat 32c is disposed at the front end of the 2nd pipe component 32 upsides, and fastening teat 32b is configured to separate appropriate intervals with auxiliary teat 32c vertically.Through auxiliary teat 32c is set, can prevent or alleviate the 2nd pipe component 32 rocking with respect to the 1st pipe component 31.

The fastening teat 33b that is provided with auxiliary teat 33c and fastens at the upper side end of the 3rd pipe component 33 with the restriction carrier 32a of the 2nd pipe component 32.Above-mentioned fastening teat 33b is identical with auxiliary teat 32c with the fastening teat 32b of the 2nd pipe component 32 with auxiliary teat 33c, respectively as the circumferentially continuous of edge the 3rd pipe component 33 and to the outstanding teat in the radial direction outside, and forms identical shaped.Through auxiliary teat 33c is set, can prevent or alleviate the 3rd pipe component 33 rocking with respect to the 2nd pipe component 32.

Be provided with on the supporting leg 3 be used for the 2nd pipe component 32 be fixed on the 1st pipe component 31 the 1st fixed mechanism 41 be used for the 3rd pipe component 33 is fixed in the 2nd fixed mechanism 42 on the 2nd pipe component 32.

The 1st fixed mechanism 41 by with the 1st fixture 44 of the upside peristome tabling of the 2nd pipe component 32 and with the 1st fixture 44 after the 1st fitting 45 that fastens of the rake 44b that states constitute.In addition, the 2nd fixed mechanism 42 by with the 2nd fixture 47 of the tube hole tabling of the upside of the 3rd pipe component 33 and with the 2nd fixture 47 after the 2nd fitting 48 that fastens of the rake 47b that states constitute.That is, the 1st fixture 44 and the 2nd fixture 47 respectively with pipe component except the 1st pipe component 31 (beginning section pipe component), i.e. the hole tabling of the upside of the 2nd pipe component 32 and the 3rd member 33.

Below, with reference to Fig. 5 the 1st fixed mechanism 41 is described.Fig. 5 is the stereographic map of state that the 1st fixed mechanism 41 is unloaded from the 2nd pipe component 32.

As shown in Figure 5, the 1st fixture 44 of the 1st fixed mechanism 41 is formed by the right cylinder that the tube hole with the 2nd pipe component 32 is complementary.Be provided with the columned teat 44a that has given prominence to from the lower surface central portion, the rake 44b that is used between the inside surface of the 1st fixed mechanism 44 and the 1st pipe component 31, forming clearance portion 51 (with reference to Fig. 3 and Fig. 4) on the 1st fixture 44.

In this embodiment, the 1st fixture 44 is chimeric under the state of the inside that is disposed at the 2nd pipe component 32, fixes through fixing meanss such as bonding agent, gib screw, riveted and fixed.Thus, on the 2nd pipe component 32, be provided with the 32d of window portion, the rake 44b that the 32d of this window portion is used in the 1st fixture 44 that forms clearance portion 51 exposes.

Rake 44b forms through on the 1st fixture 44, circular-arc groove being set.This rake 44b extends to the front end of teat 44a from axial pars intermedia, this rake 47b so that the mode that clearance portion 51 narrows down along with going to downside tilt.In addition, the downside of clearance portion 51 be connected with the inside of the 2nd pipe component 32 (with reference to Fig. 3 and Fig. 4).

The 1st fitting 45 of the 1st fixed mechanism 41 is formed by the spheroid that the radius-of-curvature of the rake 44b on being set to radius and being arranged at the 1st fixture 44 equates, the 1st fitting 45 can be located in the clearance portion 51 in clearance portion 51 movably.When the 1st fitting 45 because of gravity downwards during side shifting, can move along the rake 44b of the 1st fixture 44, be pushed on the inside surface of the 1st pipe component 31 by this rake 44b.Thus, through at the frictional resistance that produces between the 1st fitting 45 and the rake 44b, at the frictional resistance that produces between the inside surface of the 1st fitting 45 and the 1st pipe component 31, the frictional resistance that between the inside surface of the fastening teat 32b of the 2nd pipe component 32 and auxiliary teat 32c and the 1st pipe component 31, produces and the 2nd pipe component 32 is fixed on the 1st pipe component 31 (with reference to Fig. 3).

Below, with reference to Fig. 6 the 2nd fixed mechanism 42 is described.Fig. 6 is the stereographic map of state that the 2nd fixed mechanism 42 has been unloaded from the 3rd pipe component 33.

As shown in Figure 6, the 2nd fixture 47 of the 2nd fixed mechanism 42 is the shape identical with the 1st fixture 44, and difference only is to be arranged at the fixture thruster splenium 47c on the upper surface.That is, be provided with on the 2nd fixture 47 from the outstanding columned teat 47a of lower surface central portion, the fixture thruster splenium 47c that is used between the inside surface of the 2nd fixture 47 and the 2nd pipe component 32, forming the rake 47b of clearance portion 52 (with reference to Fig. 3 and Fig. 4), gives prominence to from upper surface.

In this embodiment, the 2nd fixture 47 by chimeric, is fixed through fixing meanss such as bonding agent, gib screw, riveted and fixed under the state of the inside that is disposed at the 3rd pipe component 33.Thus, the 3rd pipe component 33 is provided with the 33d of window portion, and the rake 47b that the 33d of this window portion is used in the 2nd fixture 47 that forms clearance portion 52 exposes.

Rake 47b is identical with the rake 44b of the 1st fixture 44, forms through on the 2nd fixture 47, circular-arc groove being set.This rake 47b extends to the front end of teat 47a from axial pars intermedia, this rake 47b so that the mode that clearance portion 52 narrows down along with going to downside tilt.In addition, the internal communication of the bottom side of clearance portion 52 and the 3rd pipe component 33 (with reference to Fig. 3 and Fig. 4).

The fixture thruster splenium 47c of the 2nd fixture 47 forms the teat of ring-type.The 3rd pipe component 33 is being accommodated under the situation in the 2nd pipe component 32, and the teat 44a of the 1st fixture 44 is inserted among the recess 47d of circle of the inner face that forms fixture thruster splenium 47c.At this moment, fixture thruster splenium 47c utilize the rake 44b of the 1st fixture 44 will be pushed on the inside surface of the 1st pipe component 31 the 1st fitting 45 upwards thruster press (with reference to Fig. 4).Thus, the 1st fitting 45 is side shifting upwards, the 2nd pipe component 32 fixedly being disengaged with respect to the 1st pipe component 31.

In this embodiment,, therefore,, also one push the 1st fitting 45 by fixture thruster splenium 47c surely even the 3rd pipe component 33 carries out rotating around axis with respect to the 2nd pipe component 32 because fixture thruster splenium 47c forms ring-type.

The 2nd fitting 48 of the 2nd fixed mechanism 42 forms by being set to the spheroid that the radius-of-curvature of radius with rake 47b equate, the 2nd fitting 48 can be located in the clearance portion 52 in clearance portion 52 movably.When the 2nd fitting 48 because of gravity downwards during side shifting, can move along

rake

47b, 47b is pushed on the inside surface of the 2nd pipe component 32 by this rake.Thus, through at the frictional resistance that produces between the 2nd fitting 48 and the rake 47b, at the frictional resistance that produces between the inside surface of the 2nd fitting 48 and the 2nd pipe component 32, the frictional resistance that between the inside surface of the fastening teat 33b of the 3rd pipe component 33 and auxiliary teat 33c and the 2nd pipe component 32, produces and with the 2nd pipe component 32 and the 3rd pipe component 33 relative fixed (with reference to Fig. 3).

In addition, taken in movable piece 49 (with reference to Fig. 3 and Fig. 4) in inside as the 3rd pipe component 33 of the pipe component of terminal section.This movable piece 49 is formed by the right cylinder of the diameter that the tube hole with the 3rd pipe component 33 is complementary, and can moving axially along the 3rd pipe component 33.

On the upper surface of movable piece 49, be provided with movable piece thruster splenium 49a.This movable piece thruster splenium 49a forms the teat of ring-type.The recess 49b of the circle of the inside surface of formation movable piece thruster splenium 49a is set to the size that can insert the teat 47a that is fixed in the 2nd fixture 47 on the 3rd pipe component 33.

Under the state that makes supporting leg 3 elongations, if make this supporting leg 3 towards the top, then movable piece 49 is because of gravity falls, and the teat 47a of the 2nd fixture 47 is inserted among the recess 49b of movable piece thruster splenium 49a.At this moment, movable piece thruster splenium 49a will by the rake 47b of the 2nd fixture 47 be pushed on the inside surface of the 2nd pipe component 32 the 2nd fitting 48 upwards thruster press (with reference to Fig. 4).Thus, the 2nd fitting 48 is side shifting upwards, the 3rd pipe component 33 fixedly being disengaged with respect to the 2nd pipe component 32.

In this embodiment,, therefore,, also one push the 1st fitting 45 by movable piece thruster splenium 49a surely even movable piece 49 carries out rotating around axis in the inside of the 3rd pipe component 33 because movable piece thruster splenium 49a forms ring-type.

Then, with reference to the C of A～Fig. 7 of Fig. 4 and Fig. 7 the elongation action of supporting leg 3 is described.The key diagram of the state midway that the A of Fig. 7 stretches out from the 1st pipe component 31 for the 2nd pipe component 32 and the 3rd pipe component 33 of expression supporting leg 3.In addition, the B of Fig. 7 is for being fixed in the 2nd pipe component 32 key diagram of the state on the 1st pipe component 31, and the C of Fig. 7 is for being fixed in the 3rd pipe component 33 key diagram of the state on the 2nd pipe component 32.

When the length elongation that makes supporting leg 3, at first, 3 supporting legs 3 that make contraction state are towards the top.At this moment, because the 1st fitting 45 pressed by the fixation side pushing 47c of portion of the 2nd fixture 47 thruster that makes progress, therefore, the 2nd pipe component 32 fixedly being disengaged with respect to the 1st pipe component 31.In addition, because the 2nd fitting 48 pressed by the movable piece thruster splenium 49a of movable piece 49 thruster that makes progress, therefore, the 3rd pipe component 33 fixedly being disengaged with respect to the 2nd pipe component 32.

Then, make 3 supporting legs 3 rotate 3 supporting legs 3 with opening, remove engaging between the 3rd pipe component 33 and the fastening member 24.Then, make supporting leg 3 towards the below.Thus, the 2nd pipe component 32 automatically stretches out because of gravity under the state of taking in the 3rd pipe component 33.

Shown in the A of Fig. 7, under the situation that the 2nd pipe component 32 stretches out from the 1st pipe component 31,1st fixture 44 of the 1st fitting 45 on being fixed in the 2nd pipe component 32 moves.Therefore, the 1st fitting 45 can not be pushed on the inside surface of the 1st pipe component 31, and the 2nd pipe component 32 successfully stretches out from the 1st pipe component 31.

Shown in the B of Fig. 7, when the restriction carrier 31a of the fastening teat 32b of the 2nd pipe component 32 and the 1st pipe component 31 fastened, the action of stretching out of the 2nd pipe component 32 stopped.And the 3rd pipe component 33 automatically stretches out from the 2nd pipe component 32.At this moment, 2nd fixture 47 of the 2nd fitting 48 on being fixed in the 3rd pipe component 33 moves.Therefore, the 2nd fitting 48 can not be pushed on the inside surface of the 2nd pipe component 32, and the 3rd pipe component 33 successfully stretches out from the 2nd pipe component 32.

When the 2nd pipe component 32 stretch out action when stopping, the 1st fitting 45 is because of gravity falls, the rake 44b of edge the 1st fixture 44 moves clearance portion 51 in.That is, the 1st fitting 45 moves because of the direction of stretching out of gravity to the 2nd pipe component 32 and the 3rd pipe component 33.And the 1st fitting 45 is tilted on the inside surface that the 44b of portion is pushed on the 1st pipe component 31.Thus, between the 1st fitting 45 and the 1st fixture 44, produce frictional resistance, and between the inside surface of the 1st fitting 45 and the 1st pipe component 31, produce frictional resistance.In addition, between the inside surface of the fastening teat 32b of the 2nd pipe component 32 and auxiliary teat 32c and the 1st pipe component 31, produce frictional resistance.Consequently, the 2nd pipe component 32 is fixed on the 1st pipe component 31.

The 3rd pipe component 33 stretch out action bottom 35 with carry when putting face and connecting and the restriction carrier 32a of fastening teat 33b and the 2nd pipe component 32 stops when fastening.The C of Fig. 7 represent bottom 35 with carry put that face connects and the 3rd pipe component 33 stretch out the state that action stops.

Shown in the C of Fig. 7, when the 3rd pipe component 33 stretch out action when stopping, the 2nd fitting 48 is because of gravity falls, the rake 47b of edge the 2nd fixture 47 moves clearance portion 52 in.That is, the 2nd fitting 48 moves because of the direction of stretching out of gravity to the 2nd pipe component 32 and the 3rd pipe component 33.And the 2nd fitting 48 is tilted on the inside surface that the 47b of portion is pushed on the 2nd pipe component 32.Thus, between the 2nd fitting 48 and the 2nd fixture 47, produce frictional resistance, and between the inside surface of the 2nd fitting 48 and the 2nd pipe component 32, produce frictional resistance.In addition, between the inside surface of the fastening teat 33b of the 3rd pipe component 33 and auxiliary teat 33c and the 2nd pipe component 32, produce frictional resistance.Consequently, the 3rd pipe component 33 is fixed on the 2nd pipe component 32, the elongation end of job of supporting leg 3.

In addition, the tripod 1 of this embodiment also can make supporting leg 3 elongation be length arbitrarily.In this case, make the supporting leg 3 (with reference to Fig. 4) and horizontal direction almost parallel of contraction state, the 2nd pipe component 32 and the 3rd pipe component 33 are pulled out to length arbitrarily with hand.At this moment, the 1st fitting 45 and the 2nd fitting 48 move with the 1st fixture 44 and the 2nd fixture 47 respectively.Therefore, the 1st fitting 45 and the 2nd fitting 48 are not pushed on the inside surface of the 1st pipe component 31 and the 2nd pipe component 32, can the 2nd pipe component 32 and the 3rd pipe component 33 successfully be pulled out.

Then, control the 3rd pipe component 33, make the 3rd pipe component 33 be positioned at ground, below tripod 1 is rotated roughly 90 degree.Make tripod 1 rotation roughly 90 when spending, the 1st fitting 45 and the 2nd fitting 48 are because of gravity falls, and be mobile in

clearance portion

51,52 respectively.And the 1st fitting 45 is tilted on the inside surface that the 44b of portion is pushed on the 1st pipe component 31, and the 2nd fitting 48 is tilted on the inside surface that the 47b of portion is pushed on the 2nd pipe component 32.Thus, the 2nd pipe component 32 is fixed on the 1st pipe component 31, and the 3rd pipe component 33 is fixed on the 2nd pipe component 32.Consequently, can make supporting leg 3 elongations be random length.

In addition, make supporting leg 3 when elongation state becomes contraction state, the 3rd pipe component 33 that makes supporting leg 3 is towards the top.Thus, being accommodated in the 3rd pipe component 33 inner movable pieces 49 falls because of gravity.And movable piece thruster splenium 49a will be pressed to 2 thrusters of camera fixed component by the 2nd fitting 48 that the rake 47b of the 2nd fixture 47 is pushed on the inside surface of the 2nd pipe component 32.Consequently, the 2nd fitting 48 is to camera fixed component 2 side shiftings, the 3rd pipe component 33 fixedly being disengaged with respect to the 2nd pipe component 32.

When fixedly being disengaged of the 3rd pipe component 33, the 3rd pipe component 33 is accommodated in the 2nd pipe component 32 because of gravity moves in the 2nd pipe component 32.At this moment, the fixation side pushing 47c of portion of the 2nd fixture 47 will be pressed to 2 thrusters of camera fixed component by the 1st fitting 45 that the rake 44b of the 1st fixture 44 is pushed on the inside surface of the 1st pipe component 31.Thus, the 2nd fitting 48 is to camera fixed component 2 side shiftings, the 3rd pipe component 33 fixedly being disengaged with respect to the 2nd pipe component 32.

When fixedly being disengaged of the 2nd pipe component 32, the 2nd pipe component 32 of taking in the 3rd pipe component 33 is accommodated in the 1st pipe component 31 because of gravity moves in the 1st pipe component 31.Thus, supporting leg 3 becomes contraction state.That is, adopt the tripod 1 of this embodiment, the 3rd pipe component 33 that only makes supporting leg 3 just can make supporting leg 3 become contraction state towards the top simply.

In the tripod 1 of this embodiment, the movable piece thruster splenium 49a of movable piece 49 forms the teat of ring-type, but as movable piece of the present invention, is not limited thereto.Fig. 8 representes another example of movable piece of the present invention.

As shown in Figure 8, movable piece 61 is incorporated in the inside of the 3rd pipe component 33, by constituting with the pushing member 63 that connects fixture 47 along the axially movable movable piece main body 62 of the 3rd pipe component 33.Movable piece main body 61 is formed by the right cylinder that is complementary of tube hole of diameter and the 3rd pipe component 33.

An object lesson of pushing member 63 expression movable piece thruster spleniums, independent with respect to movable piece main body 62.This pushing member 63 is made up of the bar 63a that connects fixture 47 slidably and the push-pads 63b of the front end of camera fixed component 2 sides that are arranged at this bar 63a.Teat 47a (with reference to Fig. 3) is not set on the fixture 47 that is fixed on the 3rd pipe component 33, and is provided for supplying pushing the through hole 47e that the bar 63a of member 63 connects.

The push-pads 63b of pushing member 63 forms the through hole 47e greater than fixture 47, comes off from through hole 47e to avoid pushing member 63.In addition, member 63 farthest moves to the length that the front end of movable piece main body 62 sides of camera fixed component 2 sides, bar 63a also can not deviate from from through hole 47e even bar 63a is set to pushing.

At this, the action of movable piece 61 is described.When the 3rd pipe component 33 of supporting leg 3 during towards the top, be accommodated in the inner movable piece main body 62 of the 3rd pipe component 33 because of gravity falls, the bar 63a of pushing member 63 is pushed.Thus, to camera fixed component 2 side shiftings, push-pads 63b will be pushed on camera fixed component 2 sides by the 2nd fitting 48 that the rake 47b of the 2nd fixture 47 is pushed on the inside surface of the 2nd pipe component 32 to pushing member 63 along through hole 47e.Consequently, the 2nd fitting 48 is to camera fixed component 2 side shiftings, the 3rd pipe component 33 fixedly being disengaged with respect to the 2nd pipe component 32.

Under the situation that teat 47a is set on the fixture 47 (with reference to Fig. 3), owing to forming the major part that rake 47b cuts away teat 47a.This is that diameter owing to fixture is along with the pipe component to terminal section goes to reduce.If the major part of cutting away teat 47a worries that then the intensity of fixture 47 weakens.But, under the situation of using above-mentioned movable piece 61,, therefore, do not worry that the intensity of fixture 47 weakens owing to need teat 47a be set on fixture 47, can improve the resistance to impact of fixture 47.

In the tripod 1 of this embodiment, supporting leg is made up of 3 pipe components 31～33, but also can be made up of 2 pipe components as supporting leg of the present invention, and can be made up of the pipe component more than 4.Constitute by 2 pipe components supporting leg and will the situation of pipe component as the 1st pipe component of the section of beginning under, at internal configurations movable piece as the 2nd pipe component of the pipe component of terminal section.And, at the fixture of the chimeric no fixture thruster splenium of the upside of the 2nd pipe component.Through making such structure, only with the 2nd pipe component towards the top, just can make supporting leg become contraction state.

For example; Constitute by 4 pipe components supporting leg and will the situation of pipe component as the 1st pipe component of the section of beginning under; The fixture of chimeric no fixture thruster splenium on the 2nd pipe component, chimeric fixture on the 3rd pipe component and the 4th pipe component with fixture thruster splenium.That is the fixture that, on other pipe components except the 2nd pipe component of pipe component of 1 inboard of section pipe component to start with, fixedly has fixation side pushing portion.In addition, at internal configurations movable piece as the 4th pipe component of terminal section pipe component.Through making such structure, only make the 4th pipe component towards the top, just can make supporting leg become contraction state.

In addition, in the tripod 1 of this embodiment, the 1st pipe component 31～the 3rd pipe component 33 is a cylinder, but also can be square cylindrical shell as pipe component of the present invention.In this case, because the 2nd pipe component 32 and the 3rd pipe component 33 are not that the center is rotated with the axis, therefore, are arranged at fixture thruster splenium 47c on the 2nd fixture 47 and can be arranged on the corresponding position of rake 44b with the 1st fixture 44 and get final product.

In addition, in the tripod 1 of this embodiment, the 1st fixture 44 and the 2nd fixture 47 are disposed at the inside of the 2nd pipe component 32 and the 3rd pipe component 33 respectively, but fixture of the present invention also can be the tube hole outstanding structure of its top from pipe component.In this case, be provided with and be arranged at the corresponding breach of rake on the fixture being fixed with on the pipe component of fixture.

In addition, in the tripod 1 of this embodiment, the rake 47b of the rake 44b of the 1st fixture 44 and the 2nd fixture 47 forms circular-arc, but also can form cross section コ word shape or plane as rake of the present invention.In addition, fitting of the present invention is not limited to spheroid, also can be barrel shape, cross sectional shape ovalize.

As described above, in camera support instrument of the present invention, because of gravity is pushed on the inside surface with the corresponding pipe component of this rake to the rake of the fitting fixture that the prolonging direction of supporting leg moves.Thus, between rake and the fitting, be equipped with between the inside surface and fitting of pipe component in 1 outside of pipe component of fixture, be equipped with between the inside surface of pipe component in outside surface and its 1 outside of pipe component of fixture and produce frictional resistance.Consequently, can the pipe component that fixture is installed be fixed on the pipe component in its 1 outside.Therefore, the supporting leg that only makes contraction state towards the below, pipe component automatically stretches out, the action of stretching out of this pipe component stops, and just can carry out the fixing of pipe component, the operation that supporting leg is extended.

In addition, the structure of camera support instrument of the present invention inside of terminal section pipe component for the movable piece that will be provided with movable piece thruster splenium is accommodated in movably.Therefore; When movable piece in the pipe component of terminal section on during side shifting, the rake that the movable piece thruster splenium of this movable piece will be fixed in the fixture on the terminal section pipe component is pushed on the thruster that makes progress of fitting on the inside surface of pipe component in 1 outside of terminal section pipe component and presses.Thus, by the fitting of the movable piece thruster splenium pushing side shifting that makes progress, fixedly being disengaged of the pipe component of terminal section.Therefore, be made up of under the situation of supporting leg 2 pipe components, the pipe component that only makes terminal section just can make supporting leg become contraction state towards the top simply.

In addition, camera support instrument of the present invention is for being provided with the structure of fixture thruster splenium on other fixtures the fixture on the pipe component that is fixed in 1 inboard that begins the section pipe component.For example, the pipe component of terminal section is incorporated in the pipe component in its 1 outside.In this case, the rake that the fixture thruster splenium that is fixed in the fixture on the terminal section pipe component will be fixed in the fixture on the pipe component in 1 outside of terminal section pipe component is pushed on the thruster that makes progress of fitting on the inside surface of pipe component in 2 outsides of terminal section pipe component and presses.Thus, the fitting of the fixture thruster splenium pushing side shifting that makes progress, fixedly being disengaged of the pipe component in 1 outside of terminal section pipe component.Therefore, even be made up of the pipe component more than 3 under the situation of supporting leg, the pipe component that only makes terminal section is towards the top, just can remove the fixing of pipe component except beginning section pipe component successively, makes supporting leg become contraction state simply.

In addition; Adopt camera support instrument of the present invention; Because end inside, camera fixed component side (upside) at the pipe component except beginning section pipe component disposes each fixture respectively; Therefore, can the extend exsertile length of total length of each pipe component except beginning section pipe component.

In addition, camera support instrument of the present invention is the structure of on the pipe component of camera fixed component or beginning section, the fastening member being installed.Under the state that supporting leg is shunk, the fastening member is used for moving of the terminal section pipe component of fastening.Therefore, can the terminal section pipe component of supporting leg towards below state under the carrying tripod.

The present invention is not limited to the above-mentioned embodiment that illustrates, and can in the scope that does not break away from its essence, carry out various distortion and implement.In the above-described embodiment; As camera support instrument; Enumerated tripod and described, but camera support instrument of the present invention also can be the unipods support with telescopic 1 supporting leg, also can be other camera support instrument of the adjustable brace that has more than 2 or 4.

Claims

1. a camera support instrument is characterized in that, this camera support instrument comprises:

The camera fixed component, it is used for fixing camera head;

Supporting leg, it has a plurality of pipe components that are connected with nested shape, and will be installed on the above-mentioned camera fixed component as the pipe component of outermost beginning section;

Fixture, it is individually fixed on other pipe components except above-mentioned beginning section pipe component, and is provided with the rake that forms clearance portion between the inside surface of pipe component in 1 outside of the pipe component that is used for and has been fixed;

Fitting; It is located in each clearance portion movably respectively; When the top of terminal section pipe component during towards the below; Other pipe components except above-mentioned beginning section pipe component move to stretching out direction because of gravity, are pushed on the inside surface with the corresponding pipe component of this rake by the rake of each fixture respectively;

Movable piece; It is incorporated in the inside of above-mentioned terminal section pipe component; When the top of above-mentioned terminal section pipe component during towards the top; This movable piece moves under the effect of gravity, and the rake that pushing is fixed in the fixture of above-mentioned terminal section pipe component is pushed on the fitting on the inside surface of pipe component in 1 outside of above-mentioned terminal section pipe component, this fitting is moved to be not pushed on the position on the inside surface of pipe component in 1 outside of above-mentioned terminal section pipe component.

2. camera support instrument according to claim 1 is characterized in that,

Above-mentioned movable piece has movable piece thruster splenium, and the rake that this movable piece thruster splenium will be fixed in the fixture on the above-mentioned terminal section pipe component is pushed on fitting on the inside surface of pipe component in 1 outside of above-mentioned terminal section pipe component to stretching out direction pushing in the opposite direction with above-mentioned.

3. camera support instrument according to claim 2 is characterized in that,

Other fixtures the fixture on the pipe component of 1 inboard being fixed in above-mentioned beginning section pipe component have fixture thruster splenium, and the fitting that the rake that this fixture thruster splenium will be fixed in the fixture on the pipe component in 1 outside of the pipe component of having fixed is pushed on the inside surface with the corresponding pipe component of this rake is pressed to above-mentioned camera fixed component thruster.

4. camera support instrument according to claim 1 is characterized in that,

Each fixture is disposed at the end of above-mentioned camera fixed component side of the inside of other pipe components except above-mentioned beginning section pipe component respectively, and other pipe components except above-mentioned beginning section pipe component have the window portion that the rake that makes each fixture exposes respectively.

5. camera support instrument according to claim 1 is characterized in that,

This camera support instrument also comprises the fastening member, and this fastening member is installed on the pipe component of above-mentioned camera fixed component or above-mentioned beginning section, under the state that above-mentioned supporting leg is shunk, and the moving of the pipe component of the above-mentioned terminal section of fastening.