KR200478376Y1 - Apparatus for locking ball head panning - Google Patents

Abstract

More particularly, the present invention relates to a ball head panning lock device, and more particularly, to a ball head panning lock device which is formed by forming a wedge structure on an outer surface of a disk and an inner surface of a C- When combined, the force is generated both in the axial direction and in the lateral direction to increase the adhesion force, and the direction in which the C-ring is elastically deformed and restored is deviated from the direction in which the locking screw is pressed, thereby providing smooth operation and strong fastening force. And to keep the panning motion always in a constant state in the unlocked state.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a ball head panning lock device,

More particularly, the present invention relates to a ball head panning lock device, and more particularly, to a ball head panning lock device which is formed by forming a wedge structure on an outer surface of a disk and an inner surface of a C- When combined, the force is generated both in the axial direction and in the lateral direction to increase the adhesion force. The C-ring is elastically deformed and the recovery direction is deviated from the direction in which the locking screw is pressed. And to keep the panning motion always in a constant state in the unlocked state.

The camera used to shoot images such as various moving images and still images is used with a shooting aid such as a tripod to capture a vivid image without vibration, and a clamp is used between the camera and the tripod with a ball head.

The ball head is mainly used for working while changing the installation angle of the camera quickly. To fix the ball, the handle is rotated and fixed to the main body.

In general, the clamp is fixedly used on the upper end of the ball head. The clamp is generally composed of a main body fixed to the ball head and a moving part moved from the main body. The upper part of the main body and the moving part gradually protrudes upward When the moving part is moved away from the main body, the engaging pieces on both sides are also moved away from each other. When the moving part is moved to the main body, the engaging pieces on both sides are also close to each other.

On the other hand, the ball head is provided with a panning locking device for rotating the ball head to the left and right. The panning locking device has the following configuration.

As shown in Fig. 1, the upper part corresponds to a rotating rotating part, and the lower part corresponds to a fixed part mounted on a tripod or the like.

Fig. 1 (a) shows a method in which a cylindrical outer side where rotation is performed is directly pressed by a bolt, and Fig. 1 (b) shows a method of indirectly pressing and fixing a component surrounding the cylindrical outer side.

However, in the case of (a), the bolt directly rotates the outer surface of the cylinder, resulting in pressing, scratching, deformation, and quality deterioration.

In the case of (b), since the fastening torque is determined by the product of the frictional force of the contact surface parallel to the axial direction and the distance of the central axis between the intermediate inserted part and the cylindrical rotary part by the locking force, the frictional surface is roughened There is a method of enlarging the contact surface in the axial direction or increasing the diameter or increasing the locking device to increase the pressing force. In this case, the contact surface must be elastically deformed so that the direction in which the deformation is to be recovered and the direction of the locking force are on the same line And a large force is applied to the side of the locking screw, so that a great deal of force is required for the locking operation, and it is difficult to ensure a wide contact surface to be brought into close contact.

Therefore, in such a conventional panning locking device, the panning rotation axis of the ball head is generally used in a state of being perpendicular to the paper surface. However, in the use case as shown in FIG. 2, when the fastening force of the panning locking device is not sufficient, There is a problem that can be avoided.

Korean Patent Laid-Open No. 10-2011-0115301 Korean Patent Publication No. 10-2014-0031054

According to an aspect of the present invention, there is provided a magnetic disk device comprising: a disk having an outer surface and an inner surface of a C-ring formed in a wedge shape so that a contact surface and a rotation surface are inclined; The force is generated both in the axial direction and in the lateral direction to increase the adhesion force, and the direction in which the C-ring is elastically deformed and restored is shifted from the direction in which the locking screw is pressed to provide smooth operation and strong fastening force, And it is an object of the present invention to provide a ball head panning lock device which is capable of always maintaining a constant state of panning motion in the unlocked state.

According to an aspect of the present invention,

A base formed in a disk shape and having a fixing protrusion of a cylindrical shape with a fastening screw hole at the center of the upper surface thereof and protruding therefrom and having a first step formed on the upper surface; A disc sheet formed in a cylindrical shape so as to be seated on the upper surface of the base and rotated, and having a first screw thread formed on an upper surface of the disc; A disk having a V-groove formed in the second step and a second step formed on an outer circumferential surface of the disk, the disk being inserted into the disk sheet and screwed into the base, ; A C-ring having a V-shaped protrusion formed on an inner surface thereof so as to be inserted into a V-groove of the disc; A ball head body having a second screw thread formed on a bottom surface thereof to be engaged with a first screw thread of the disk sheet, a ball screw body located on an upper surface of the base and having a lock screw hole and a stop screw hole formed on one side thereof; A locking screw which is fastened to a locking screw hole of the ball head body to fix the disk and presses the C-ring; And a stop screw which is fastened to a fixing screw hole of the ball head body to fix the C-ring and inserted into a cut-out portion of the C-ring.

Here, the V groove of the disk and the V projection of the C-ring are formed such that their center points have a deviation from each other.

Here, the C-ring is formed to have a gap (G1, G2) in the V-groove of the disk and the side surface inside the ball head body, respectively, so that the shape can be deformed.

According to the ball head panning lock device of the present invention, the outer surface of the disk and the inner surface of the C-ring are formed in a wedge structure so that the contact surface and the rotation surface are inclined. Since the C-ring is elastically deformed and the direction of recovery is deviated from the direction in which the locking screw is pressed, it provides smooth operation and strong fastening force. It is also advantageous in suppressing the generated vibration, and the panning motion can always be maintained in a constant state in the unlocked state.

1 is an explanatory view for explaining a conventional panning locking device.
2 is a view showing a use state of a conventional panning lock device.
3 is an exploded perspective view showing a configuration of a ball head panning lock device according to the present invention.
4 is a cross-sectional perspective view in the engaged state of FIG.
5 is a front cross-sectional view in the coupled state of Fig.

Hereinafter, the configuration of the ball head panning lock device according to the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of functions in the present invention, and may vary depending on the intention of the user, the intention of the operator, or the customs. Therefore, the definition should be based on the contents throughout this specification.

FIG. 3 is an exploded perspective view showing a configuration of a ball head panning locking device according to the present invention, FIG. 4 is a perspective view in a coupled state in FIG. 3, and FIG. 5 is a front sectional view in a coupled state in FIG.

3 to 5, a ball head panning lock device 1 according to the present invention includes a base 10, a disc seat 20, a disc 30, a C-ring 40, A ball head body 50, and a locking screw 60 and a setscrew 70. [

First, the base 10 is formed in a disc shape made of a metal material, and a cylindrical fixing protrusion 13 having a fastening screw hole 11 at the center of the upper surface thereof is fixed to a supporting device (not shown) such as a tripod, And a first step 15 is formed on an upper surface rim.

The disc sheet 20 is formed in a cylindrical shape by being made of a metal material so as to be seated on the upper surface of the base 10, and a first thread 21 is formed on the upper surface of the disc. At this time, the disk sheet 20 is formed with a blade piece 23 horizontally at the outer lower end so that the ball head body 50 to be described below is seated on the blade piece 23.

The disc 30 is formed into a cylindrical shape by a metal material so as to be rotated inside the disc seat 20 and inserted into the disc seat 20 so that the bottom surface thereof is screwed to the base 10, And a V-groove 33 is formed in the second step 31. The V- A plurality of fixing screw holes 37 are vertically formed on the fixing jaw 35 and the base 10 and the fixing screws B As shown in Fig. Here again, the bottom surface of the second step 35 of the disk 30 is located on the top surface of the disk sheet 20. [ At this time, it is preferable that the V-groove 33 has an angle of 45 degrees.

In addition, the C-ring 40 is formed in the shape of a ring made of a metal material, and one end thereof is cut to have a cutout 41, and a V-shaped projection 43 Is formed. Here, the V-shaped protrusion 43 of the C-ring 40 has a deviation (for example, 0.1 mm deviation) from the center point C2 of the V-groove 33 of the disc 30, And the center point of the V projection 43 is set to be 0.1 mm higher). At this time, it is preferable that the V projection 43 has an angle of 45 degrees. The C-ring 40 is also formed to have gaps G1 and G2 in the V-groove 33 of the disk 30 and the inner surface of the ball head body 50, The bottom surface of the ring 40 is located on the top surface of the disc sheet 20 and is brought into close contact with the top surface of the disc sheet 20 by its own weight. At this time, the C-ring 40 is inserted into the V-groove 33 of the disk 30 and the cut-out portion 41 is opened.

The ball head body 50 has a cylindrical shape formed of a metal material and has a second thread 51 formed on the bottom surface thereof to be engaged with the first thread 21 of the disc seat 20, Is mounted on the blade piece 23 of the sheet 20 and is rotated together with the disc seat 20 and a locking threaded hole 53 and a setscrew hole 55 are formed on one side thereof. Here, a ball (not shown) and a fixing device (not shown) for fixing the ball are inserted into the ball head body 50.

Then, the lock screw 60 is fastened to the lock screw hole 53 of the ball head body 50 to press the C-ring 40 to fix the disk 30.

The detent screw 70 is fastened to the fixing screw hole 55 of the ball head body 50 to be fixed to the C-ring 40 and inserted into the cutout 41 of the C-ring 40.

Hereinafter, the assembly process and operation of the ball head panning lock device according to the present invention will be described in detail with reference to the accompanying drawings.

First, the cut-out portion 41 of the C-ring 40 is opened and inserted into the V-groove 33 of the disk 30.

The disk 30 and the base 10 are fixed to each other by using a fixing screw B in a state in which the disk 30 is inserted into the disk sheet 20. At this time, since the bottom surface of the second step 35 of the disk 30 is positioned on the top surface of the disk sheet 20, the disk sheet 20 is not detached and can be smoothly and freely rotated from the outside of the disk 30 .

In this state, the second thread 51 of the ball head body 50 and the first thread 21 of the disc seat 20 are engaged and fixed.

Then, when the cut-out portion 41 of the C-ring 40 coincides with the setscrew hole 55 while rotating the ball head body 50, the setscrew 70 is inserted into the setscrew hole 55 of the ball head body 50, (40) is inserted into the cutout (41) of the C-ring (40) to cut off the rotation of the C-ring (40).

Finally, the locking screw 60 is fastened to the locking screw hole 53 of the ball head body 50 to complete the assembly.

When the assembly is completed, the C-ring 40 is placed on the disc seat 20 in a state where the lock screw 60 does not press the C-ring 40, It does not interfere with the free rotation of the ball head body 50 and the disk sheet 20 because it has the gap G2. Since the base 10 fixed to the supporting equipment such as the tripod is coupled to the disc 30 and the disc 30 can rotate inside the disc seat 20, the weight of the equipment such as a camera mounted on the ball head And serves as a bearing.

On the contrary, when the lock screw 60 is turned to fix the panning, the C-ring 40 is pressed and the C-ring 40 is moved to the left in the figure by pressing, The V projections 43 of the disk 30 come into contact with the V grooves 33 of the disk 30.

Further, at the opposite side of the C-ring 40, that is, on the opposite side of the pressing, the C-ring 40 is pushed outward to start contacting the inner diameter of the ball head body 50.

When the locking screw 60 is further rotated in this state, the effective diameter of the C-ring 40 is reduced and elastically deformed into an elliptical shape.

When the V protrusion 43 of the C-ring 40 and the V groove 33 of the disc 30 come into contact with each other, the center point C1 of the V groove 33 and the center point C2 of the V protrusion 43, Ring 40 is formed so as to have a deviation (for example, a 0.1-millimeter deviation and a center point of the V-shaped projection 43 being set to be 0.1 mm higher), the V-shaped projection 43 of the C- The V groove 33 is lifted.

The C-ring 40 is held in contact with the disk 30 by lifting the disk 30 while being supported on the upper surface of the disk sheet 20. The inside of the upper surface of the base 10, The lower surface of the disc 20 is in close contact with each other to make an additional contribution to fixing the disc seat 20.

The shape of the C-ring 40 is restored and the V-groove 33 of the disk 30 and the V-projection 43 of the C-ring 40 are recovered by unscrewing the lock screw 60 to release the panning fixation. The ball head body 50 and the disc seat 20 are freely rotated.

The present invention can be variously modified and can take various forms, and the detailed description of the present invention only describes specific embodiments thereof. It is to be understood, however, that the appended claims are not to be interpreted as limited to the specific forms set forth in the detailed description, but rather are to include all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

10: Base 20: Disc seat
30: Disk 40: C-ring
50: Ball head body 60: Locking screw
70: Release screw

Claims (3)

A base formed in a disk shape and having a fixing protrusion of a cylindrical shape with a fastening screw hole at the center of the upper surface thereof and protruding therefrom and having a first step formed on the upper surface;
A disc sheet formed in a cylindrical shape so as to be seated on the upper surface of the base and rotated, and having a first screw thread formed on an upper surface of the disc;
A disk having a V-groove formed in the second step and a second step formed on an outer circumferential surface of the disk, the disk being inserted into the disk sheet and screwed into the base, ;
A C-ring having a V-shaped protrusion formed on an inner surface thereof so as to be inserted into a V-groove of the disc;
A ball head body having a second screw thread formed on a bottom surface thereof to be engaged with a first screw thread of the disk sheet, a ball screw body located on an upper surface of the base and having a lock screw hole and a stop screw hole formed on one side thereof;
A locking screw which is fastened to a locking screw hole of the ball head body to fix the disk and presses the C-ring; And
And a stop screw which is fastened to a stop screw hole of the ball head body so as to fix the C-ring and inserted into a cut-out portion of the C-ring. The method according to claim 1,
The V groove of the disk and the V projection of the C-
And the center points thereof are formed to have a deviation from each other. The method according to claim 1,
The C-
And a gap (G1, G2) is formed in a V-groove of the disk and a side surface of the ball head body, respectively, so that the shape can be deformed.

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