JP2010048406A - Pan-tilt jogging mechanism unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems wherein pan-tilt operation and fine adjustment after setting a camera in a universal head of a camera tripod are extremely difficult and a device capable of performing these operations exists but is complicated in structure and expensive. <P>SOLUTION: A universal head device is composed of a combination of respectively separate independent common component units as necessary by assembly hardware for pan-tilt operation. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a positioning fine adjustment mechanism for mounting adjustment of a camera, a telescope, or the like.

  Conventionally, there are pan heads used for general camera tripods and the like.

  In conventional pan heads, the fixed part on the tripod side and the camera mounting part are connected with a ball joint for positioning, and the positioning operation is performed by the brake handle of the ball joint that also serves as a positioning lever on the camera mounting part. It was fixed.

  When panning is required after fixing the camera, a worm gear is incorporated into the tripod side fixing portion and a worm handle is provided for panning.

  With the conventional pan / tilt head described above, it was not possible to finely adjust the pan / chill after the camera was fixed.

  Also, with the conventional pan head, the pan operation could be performed after fixing, but the chill operation could not be performed.

  As a device capable of both pan and chill operation, the same mechanism as a conventional pan device can be installed as a chill device so as to be orthogonal to the pan axis, and a camera mounting part may be provided orthogonal to the chill axis, but the structure is complicated. There is a drawback that the number of parts is high and the cost becomes high.

  In order to solve the above-mentioned problems, the present invention comprises a pan mechanism and a chill mechanism, and a fixing device that relies on free rotation, fine adjustment, and brake, respectively, and two sets of pan, chill fine adjustment, and fixing mechanism units that depend on common parts. And two assembly hardware having a camera mounting mechanism. .

  The normal worm virus of the fixed part of the fine adjustment fixing mechanism unit of the pan / chill device is changed to a bevel gear, and the axis of the trapezoidal screw held in the bearing held by the eccentric cam in the rotating part is used as the operation handle. By turning the, the fine adjustment of the rotating part is performed, and if the eccentric cam is rotated to release the engagement of the trapezoidal screw and the inclined gear, the rotating part becomes free and can be freely rotated with the operation handle. I can move. Also, the eccentric shaft is rotated counterclockwise so that the meshing gap between the trapezoidal screw and the inclined gear is set to 0, so that the braking effect is achieved. As a result, the rotating part is fixed to the fixed part.・ Fine adjustment / fixing mechanism unit.

  A pan head mechanism equipped with a fine movement mechanism for both pan and chill operation can be configured by attaching an assembly hardware having a camera attachment mechanism to the rotation / fine adjustment / fixing mechanism unit and combining two units.

  As described above, the pan / chill operation mechanism is an independent single unit, and is composed of common parts, so it is a low-performance, high-performance cloud with pan / chill rotation, fine adjustment, and fixing mechanism at low cost. A stand mechanism can be provided.

  The pan / chill rotation / fine adjustment / fixing mechanism of the present invention is combined with two assembly hardware having a camera mounting mechanism for two rotation / fine adjustment / fixing units. A high-performance pan head mechanism with a chill rotation and fine adjustment mechanism.

  FIG. 1 is a plan view of the above-described pan head mechanism, and FIG. 2 is a side view of a rotating unit 4 that rotates on the outside of the fixed parts 1 and 3 having the unit mounting part screw 1A. Pan / Chill rotation / Fine adjustment / Fixing unit with handle 8, Free / Fine adjustment / Fixed brake switch knob 9 High performance pan head with pan / chill rotation / fine adjustment / fixing mechanism.

  FIG. 3 is an explanatory view of the planar structure of the pan / chill rotation / fine adjustment / fixing unit of the present invention, FIG. 4 is an explanatory diagram of the same cross-sectional structure, and the fixing portion main body 1 has a mounting portion screw hole 1A. The rotating part frame 4 is assembled to the fixed part assembling screw 1B so as to be rotatable based on the inclined gear 2 and the gear retainer 3. At that time, by changing the fixing portion main body 1 and the gear press 3, the operation can be changed from the left hand to the right hand.

  The fixed portion gear 2 has conventionally used a worm wall, but since it cannot respond to the vertical fluctuation of the pitch circle, the trapezoidal screw 6 attached to the rotary shaft 7 is held as a bevel gear and is held by the eccentric holder 9. , The rotation position 4 is finely adjusted by turning the operation handle 8 that drives the rotary shaft 7 with the stop position of the holder 9 as the fine adjustment position 12, and the stop position of the holder is set to the free position 13. Then, the rotating part 4 is free from meshing with the gear and free to rotate. Further, when the stop position of the holder is turned to the fixed side 11, the clearance between the gear and the trapezoidal screw becomes 0, and the rotating part 4 is fixed to the fixed part 1 by the brake effect. Reference numeral 10 denotes a gear meshing correction screw due to the rotation of the holder 9 to prevent displacement at the time of fixing.

  FIG. 5 is a plan view of an assembly hardware. FIG. 6 is a side view of the assembly hardware. 14 is an assembly hardware 15 and a camera fixing screw 16 is an assembly hole.

It is a combination example top view of this invention unit. It is a combination example side view of the unit of the present invention. . It is plane structure explanatory drawing of this invention unit. It is side sectional structure explanatory drawing of this invention unit. It is a top view of an assembly fixing metal fitting. It is a side view of an assembly fixing metal fitting.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Fixing part main body 1A ... Installation screw hole 1B ... Fixing part assembly screw 2 ...... Bevel gear 3 ... Gear press 4 ... Turning part frame 5 ... Bearing part 6 ... Trapezoidal screw 7 ... Trapezoidal screw shaft 8 ... Operation handle 9 ... Eccentric holder 10 ... Adjustment screw 11 ... Holder fixing side stop position 12 ... Holder fine adjustment stop position 13 ... Holder free side stop position 14 ... Assembly Hardware 15 ... Installation screw 16 ... Assembly screw hole

Claims (2)

  A rotating part frame is pivotably assembled to a fixing part main body with a fixing part mounting screw hole centered on a tripod, etc. The frame has a trapezoidal screw shaft that meshes with the fixed portion bevel gear, and a eccentric holder that is held by the operation handle and a eccentric holder that is held by the operation handle is screwed into the compensating screw and rotated by the correction screw. The eccentric holder that is positioned on the moving frame and protrudes from the rotating frame can change the eccentric angle as an operation switching knob, thereby eliminating the meshing of the trapezoidal screw and the bevel gear and making the rotating part free with respect to the fixed part. A pan / chill fine movement mechanism unit that is an operation switching knob that is set to a fine adjustment position depending on the operation handle as the meshing state, or is set to a fixed position of the rotating portion based on the brake effect by setting the meshing gap to 0.   2. A pan / tilt head device comprising the pan / chill fine movement mechanism unit according to claim 1 as a unit of separate independent common parts, and a combination according to the mounting hardware.

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