JPS6039593Y2 - Pan head - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stand for fixing a camera on a tripod, that is, a pan head.

Conventional camera heads are made by combining a universal joint that can freely rotate in the horizontal plane and a universal joint that can freely rotate in the vertical plane, and set the camera in the direction of the desired subject. It was the composition.

Moreover, the two universal joints must be fixed by screwing one operating bundle, making the configuration complicated and requiring a large number of parts.

Furthermore, since each of these parts relies on machining using machine tools, there are many drawbacks such as high manufacturing costs, increased assembly man-hours, and increased overall size and weight.

For this reason, it is not practical because it imposes a heavy burden on people who have to move when taking pictures or when transporting equipment to the shooting location.

The present invention improves and eliminates the above-mentioned drawbacks of the conventional technology, and consists of a ball and socket joint made up of a sphere fixed on a base and an outer shell member that fits on the outer circumferential surface of the sphere. By providing a mechanism for attaching and detaching the camera on the upper surface of the outer shell member, the cloud is compact, lightweight, and excellent in miniaturization, and furthermore, the camera can be easily and quickly moved in any direction with a single universal joint. The purpose is to provide a platform.

The configuration of the present invention will be explained below based on the embodiments shown in the drawings.

The pan head A of the present invention has a bed 2 of a tripod 1 as shown in the drawing.
A base 3 fixed to the base 3, a sphere 4 fixedly supported by the base 3, and upper and lower outer shell members 5 and 6 fitted to the outer peripheral surface of the sphere 4 and fixed thereto as necessary. , a camera fixing means 7 provided on the upper surface of the upper outer shell member 5, and a fixing means 8 for fixing the upper and lower outer shell members 5 and 6 to the sphere 4.

Among the above-mentioned members, the members indicated by reference numerals 3 to 6 are formed by molding a polymer compound such as plastic, or by die-casting or the like.

When the base 3 is molded from a polymer compound, as shown in FIG. A spherical body 4 is integrally formed with the spherical body 4.

The outer peripheral surface 4a of the sphere 4 is finished with a satin finish.

Reference numeral 10 denotes a screw member that is attached to the core bar 9 and embedded in the base 3 so as to protrude from below the bottom surface of the base 3.

The base 3 is connected to the bed 2 of the tripod 1 via this screw member 10.
Fixed.

As shown in FIG. 2, the upper shell member 5 has a spherical recess 11 that fits into the outer peripheral surface 4a of the sphere 4, and the lower end of the recess 11 is located on the equator of the sphere 4 in the state shown in the figure. .

The lower shell member 6 also has a fitting hole 12 that passes through the base 3 and has a spherical surface portion that fits into the outer peripheral surface 4a of the sphere 4.

The upper end of this fitting hole 12 is located on the equator of the sphere 4 in the same manner as the lower end of the recess 11 as shown in the figure.

In other words, the butt end surfaces of the upper and lower outer shell members 5 and 6,
It is located on the equator of sphere 4.

Therefore, the upper and lower outer shell members 5 and 6 are screwed together via the circumferential threaded portion 13 provided on the side of the abutted end surfaces of these members, thereby enclosing more than half of the sphere 4. , will be rotatably supported by this.

That is, it constitutes a universal joint (ball joint) using the sphere 4.

In order to fix the upper and lower outer shell members 5 and 6 at arbitrary positions on the sphere 4, the fixing means 8 provided on the upper outer shell member 5 includes a screw member 14 that is screwed into the upper outer shell member 5, and a screw member 14 that is screwed into the upper shell member 5. Member 14
It consists of a push piece 15 that moves forward and backward with respect to the sphere 4, and a bundle 16 that rotates the screw member 14.

The bundle 16 is prevented from moving relative to the screw member 14 by a lock pin 17, and the rotation of the screw member 14 is prevented from being transmitted to the pusher piece 15 by the joint ball 18.

Therefore, by rotating the bundle 16, the push piece 1
5 can be moved forward and backward relative to the outer peripheral surface 4a of the sphere 4, and the upper and lower outer shell members 5 and 6 are fixed at any position on the sphere 4 by bringing them into surface contact with the outer peripheral surface 4a of the sphere 4 as necessary. can do.

The contact surface 15a of the push piece 15 has an outer circumferential surface 4a of the sphere 4.
The same matte finishing is applied to increase the mutual contact resistance and to ensure complete fixation of the sphere 4 and the upper and lower outer shell members 5 and 6.

In addition, a spring member is incorporated between the screw member 14 and the push piece 15, and the pressing force of the push piece 15 against the sphere 4 is changed by operating the bundle 16, thereby fixing the upper and lower outer shell members 5 and 6 to the sphere 4. It is also possible to do so.

Next, camera fixing means 7 provided on the upper surface of the upper outer shell member 5
I will explain about it.

A camera fixing screw member 1 is provided on the upper surface of the upper outer shell member 5.
A fitting hole 20 for rotatably storing and holding the head 19a of the screw member 19, and a fitting hole 22 for screwing a cover member 21 to prevent the screw member 19 from coming off are bored.

23 is a washer arranged between the head 19a of the screw member 19 and the lid member 21.

Further, a rotating member 25 is disposed on the upper surface of the upper outer shell member 5 with a washer 24 interposed therebetween.

The side circumferential surface of this rotating member 25 is knurled, etc., as shown in FIG.
The diameter of the camera 31 is set to be larger than the front-to-back width of the bottom of the main body of the camera 31 (width in the left-right direction in the figure).

26 is a sheet-like member attached to the upper surface of the rotating member 25. As shown in FIG.

A screw member 19 is provided at the center of the lid member 21 and the rotating member 25.
Through-holes 27 and 28 are bored through which the threaded portion 19b is inserted.

29 is an elliptical through hole provided in the screw portion 19b.

A pin member 30 inserted from the side surface of the rotating member 25 is inserted into the through hole 29 .

Further, this pin member 30 is screwed onto a part of the rotating member 25.

The procedure for assembling the camera fixing means 7 having such a configuration is to first fit the screw member 19 into the fitting hole 20, arrange the washer 23, and then screw the lid 21 into the fitting hole 22. .

The height of the upper surface of the lid member 21 after attachment is the same as the height of the upper surface of the upper outer shell member 5.

Next, the rotating member 25 is placed on the upper surface of the upper shell member 5 via the washer 24, and the pin member 30 is inserted from the side surface of the rotating member 25, and the pin member 30 is inserted into the through hole provided in the screw member 19. 29 and screwed onto a part of the rotating member 25.

Next, the manner of use of the above-mentioned pan head A will be explained.

First, the base 3 is fixed to the bed 2 of the tripod 1 via the screw member 10.

Then, the camera 31 is attached to a screw member 19 for fixing the camera provided on the upper surface of the upper outer shell member 5.

To attach the camera 31, a screw hole (not shown) provided at the bottom of the camera 31 is placed over the screw member 19, and the rotating body 25 is rotated in a predetermined direction.

This rotation of the rotating body 25 is transmitted to the screw member 19 via the pin member 30.

Therefore, the screw member 19 enters the screw hole of the camera 31.

Here, since the screw member 19 is prevented from being removed by the cover member 21, the camera 31 is eventually drawn toward the upper shell member 5 side by the screw member 19, and eventually the bottom of the main body of the camera 31 rotates. It contacts the upper surface of member 25.

If the rotating member 25 is further rotated from this state, the camera 31 will be fixed on the rotating member 25 with a certain tightening force.

Once the camera 31 has been attached, the camera 25 is then set in the direction of the object to be photographed.

In this case, if the handle 16 of the fixing means 8 is rotated to move the push piece 15 backward and the contact surface 15a of the push piece 15 is separated from the spherical outer peripheral surface 4a, the upper and lower outer shell members 5 and 6
is released, and the upper and lower outer shell members 5 and 6 can be freely rotated in any direction relative to the sphere 4.

That is, the camera 31 fixedly placed on the upper surface side of the upper shell member 5 can be directed toward the intended subject.

After that, at this position, the handle 16 is rotated in the opposite direction to the above to advance the pusher piece 15 and bring it into pressure contact with the sphere 4.
The spherical body 4 can be held by the contact portions of the upper and lower outer shell members 5 and 6 on the opposite side of the pressing piece 15, and the upper and lower outer shell members 5 and 6 can be fixed to the spherical body 4.

In this way, the pan head A of the present invention is configured to change the direction of the camera 31 with one universal joint using the sphere 4, so that the camera can be directed straightly and instantaneously toward the desired subject. Moreover, it can be directed with smooth movements,
Its operation is extremely simple.

In addition, when the main component of the pan head A is made of a polymer compound, its weight can be significantly reduced compared to conventional metal parts, making it easy to move from one shooting location to another. Even if the tripod 1 is moved with the pan head A attached, it will not be a burden.

Furthermore, the pan head A includes a base 3, a sphere 4, and upper and lower outer shell members 5.
and 6, and the camera fixing means 7, which can be stored separately, which is convenient.

Moreover, the camera fixing means 7 is the same as the conventional camera 31.
Since the camera 31 can be fixed simply by rotating the screw member 19 via the rotation member 25 without rotating the camera 31, the operation is simple.

Furthermore, since there is no need to rotate the camera 31 during this operation, mistakes such as accidentally dropping the camera 31 can be prevented.

In the above explanation, the push piece 15 was used as a means for fixing the upper and lower outer shell members 5 and 6 to the sphere 4, but if either the upper or lower outer shell members 5 and 6 It is also possible to provide a split groove (not shown) on one or both sides, and tighten and fix the split groove by screwing or the like via a lever.

Further, although the case has been described in which the screw member 19 for fixing the camera and the rotation member 25 are configured to rotate together by the pin member 30, the configuration is not limited to this, and for example, a configuration using a key fitting type between the two may be used. Good too.

In short, it is sufficient that the screw member 19 and the rotating member 25 operate together only in the rotational direction and are slidable in the axial direction of the screw member 19.

As explained above, in the present invention, a sphere is fixedly supported on a base that can be attached to the bed of a tripod, and the camera fixing means is attached and detached to the upper surface of the outer shell member that fits on the outer peripheral surface of the sphere. Since it is freely attached, it is possible to provide a pan head that is compact, lightweight, and excellent in miniaturization, and further allows the camera to be easily and quickly moved in any direction with a single universal joint.

[Brief explanation of drawings]

Figure 1 is a side view showing the relationship between the base and the sphere, Figure 2 is a cross-sectional side view of the main parts of the pan head, and Figure 3 is a side view showing the camera attached to the pan head on a tripod. . 4... Sphere, 1... Tripod, 2...
... Bed, 3 ... Base, 5 ... Upper shell member, 6 ... Lower shell member, 20, 22.
...Fitting hole, 21...Lid member, 19...
... Screw member for fixing the camera, 25 ... Rotating member, 15 ... Push piece.

Claims (1)

[Scope of utility model registration request] A base that fixedly supports a sphere and can be freely attached to the bed of a tripod, an outer shell member that fits on the outer peripheral surface of the sphere and forms a ball joint, and a hole bored in the upper surface of the outer shell member. a screw member for fixing a camera, the head of which fits into a hole formed by the hole, and a screw portion of which protrudes above the outer shell member from a through hole of a lid member that closes the opening side of the hole; It is characterized by comprising a rotating member installed on the upper surface and engaging with the screw member, and a fixing means such as a push piece that is incorporated into the outer shell member and fixes the outer shell member to the sphere. A pan head.