JP3180936U - Pan head - Google Patents

Abstract

Provided is a pan head that can convert a horizontally long position and a vertically long position of an optical device on a pan head without providing a rear wall.
The camera platform U includes a camera fixing seat 10 to which a camera having different vertical and horizontal dimensions in front view and a camera fixing seat 10 to which the camera can be used in a horizontally long position in the left direction in front view. The camera fixing seat 10 rotated approximately 90 degrees based on the first rotation axis 8-1 and further rotated approximately 90 degrees is rotated approximately 180 degrees based on the second rotation axis 10-1 to position the camera in a vertically long position. Rotation mechanism that can be used in
[Selection] Figure 4

Description

  The present invention provides a position in which the optical device becomes horizontally long without significantly changing the optical axis of the optical device such as a camera, and when moved to the vertical position without significantly impairing stability. This is because the vertical position can be changed on the pan head.

Regardless of whether it is for professional use or amateur use, it is an indispensable device for photography. A tripod that supports the “camera K” as an optical device (for example, a digital camera or a 35 mm silver-salt camera) or a lot of sales photography. There is "Stand S" used.
The pan head plays an important role in these tripods and “Stand S”.
The pan / tilt head is provided between an optical device such as a camera and a gantry body such as a tripod, and fixes the optical device in an arbitrary direction.

Traditionally, the pan head has three functions built in to determine the composition of the photo. This is a so-called three-way.
(1) Tilt. This is a function of tilting in the front-rear direction.
(2) Left-right tilt. Adjust the tilt of the device and move the camera in the horizontal position to the left side of the camera platform to convert it to the vertical position.
(3) Swing. This function rotates horizontally.
In business photography, (1) Tilt to tilt in the front-rear direction, and (2) Conversion of the camera to vertical and horizontal positions is a necessary condition. (3) Swing has casters attached to “Stand S” It is possible to substitute it.

Usually, the screen size of a photograph is a rectangle other than “6 × 6 size”. In particular, business photographs are often stretched to a size designated by the customer when printing.
When taking a picture, in order to make effective use of the screen size, for example, for group photos, the camera is mounted in a horizontally long position on the camera platform. Attached and shooting.
That is, the operation of converting the camera mounting position on the camera platform into a horizontally long position and a vertically long position is indispensable for business photographs. In general, the camera has different vertical and horizontal dimensions when viewed from the front, and is formed horizontally. However, coupled with the fact that the screen size of the photo is rectangular, the camera can be used in a horizontally long position. It is possible to take a picture even if is used in a vertically long position.

In general, the “camera K” formed in a horizontally long shape is provided with a screw hole for fixing the camera only on a bottom surface in a horizontally long position. Therefore, when “camera K” is fixed to “camera head U”, the camera is naturally attached to a horizontally long position (state).
In order to convert the camera mounting position from this state to a vertically long position (state), until now, the pan head for tilting the pan / tilt head is loosened and tilted to the left in the front view of the camera. It was necessary to set the position (state).
The problem at this time is that in the front view of the camera, the “camera K” is shifted by tilting it to the left to obtain a vertically long position (state), and the vertical and horizontal dimensions are different. That is, the optical axis (center) of the lens of the camera is shifted. In addition, since the camera is positioned on the left side of the pan head, the center of gravity is biased to the left side, and stability is significantly lost. Further, in business photography, a plurality of cameras are often mounted on the “stand S” for a camera, and a situation in which usability deteriorates due to the proximity of a necessary abnormality to an adjacent camera occurs.

As a related technology, in order to solve the problem of defocusing due to the movement of the lens optical axis and the need for refocusing, the camera to be supported can be rotated on the rear extension line of the optical axis of the camera lens. A technique for providing a pan head configured to support is disclosed (see Patent Document 1).
The background of this related technology is that when the camera mounted in the horizontal direction is displaced in the vertical direction (state), the position of the lens inevitably moves sideways as the camera moves. There is. A general film has a rectangular shape. Therefore, whether the film is used vertically or vertically is determined based on the direction of the camera. When shooting with a tripod, etc., when the subject is in focus and the photo composition is visually selected via the viewfinder, it is better to select landscape orientation or portrait orientation. There are many. If the lens moves sideways as the camera rotates, for example, if the camera that has been placed in focus in the horizontal direction is rotated in the vertical direction, the subject is moved in advance in the viewfinder. Even if it is set to the center, the subject is positioned in an unnatural state due to the movement of the lens, or in an extreme case, the subject is removed from the viewfinder.

Registered Utility Model No. 3057371

Moreover, in the related technology, a rear wall is provided behind the camera placed on the camera platform (photographer side) as a part of an indispensable mechanism for converting the horizontal position and the vertical position of the camera. Yes.
Recent cameras are remarkably high-performance and highly functional, and various devices (for example, a liquid crystal display screen) are also provided on the back of the camera, so the back of the camera placed on the platform (photographer side) In the configuration in which the rear wall is provided, there is a problem that the photographer has poor usability when using / operating / checking the camera. In addition, various devices provided on the rear surface of the camera may be damaged due to contact between the rear surface of the camera and the rear wall.
Therefore, it is desirable that the rear side of the camera placed on the camera platform be open.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a pan head having a mechanism capable of converting a horizontally long position and a vertically long position of an optical device such as a camera directly above the pan head without providing a rear wall.

The first pan head of the present invention has an optical device (camera) with different vertical and horizontal dimensions when viewed from the front. The mounting frame (camera fixed seat) and the optical device (camera) can be used in a horizontally long position. The mounting frame (camera fixing seat) is rotated approximately 90 degrees (90 degrees) about the first rotation axis (centered) in one direction (one side) in the horizontal direction of the horizontally long position. The optical frame (camera) is moved to a vertically long position (state) by rotating the mounting frame (camera fixing seat) rotated approximately 180 degrees (180 degrees) about the second rotation axis as the center (core). ), And a rotation mechanism that can be used.
As a result, the optical device (camera) can be easily converted into a horizontally long position and a vertically long position directly above the camera platform while the rear of the optical device (camera) is secured as an open space.

The second pan / tilt head of the present invention is mounted so that an optical device (camera) with different vertical and horizontal dimensions can be used in a horizontally long position when mounted on the mounting frame (camera fixing seat). The mounted frame (camera fixing seat) is released from the system stop state of the first one fixing member provided on the arm, and the arm is moved approximately 90 degrees in one direction (one side) in the horizontal direction. By rotating (90 degrees), the mounting frame (camera fixing seat) rotated about 90 degrees (90 degrees) about the first rotation axis as the center (core) and further rotated about 90 degrees (90 degrees). Is released from the locked state of the second position fixing member provided on the arm, and the arm is rotated by approximately 180 degrees (180 degrees), so that the second rotation axis is the center (core). Rotate the optical device (camera) vertically (180 degrees) (position) Characterized by comprising a rotation mechanism (a) to be enabled.
Accordingly, the optical device (camera) can be easily converted into a horizontally long position and a vertically long position just above the pan head while the rear side of the optical device (camera) is secured as an open space.

Further, the position of the optical axis of the lens of the optical device (camera) at the horizontally long position and the vertically long position may be close to or coincide with each other.
This reduces the burden of readjusting the focus of the optical device (camera).

Further, the state transition from the vertically long position to the horizontally long position may be possible by a state transition opposite to the state transition from the horizontally long position to the vertically long position.
That is, an optical device (camera) that can be used in a vertically long position is rotated approximately 180 degrees around the first rotation axis (core), and further rotated approximately 90 degrees around the first rotation axis (core). The device (camera) can be used in a horizontally long position. This makes it possible to smoothly convert between the horizontally long position and the vertically long position, thereby improving the usability of the optical apparatus (camera).

  According to the present invention, since there is no rear wall or the like, it is possible to provide a pan head that can convert the horizontally long position and the horizontally long position of the optical apparatus (camera) directly above the pan head without deteriorating usability.

It is a figure which shows the state which attaches and uses the pan head (a camera is a landscape position) which concerns on embodiment of this invention to the stand for cameras. It is a side view of a pan head (camera is a landscape position) according to an embodiment of the present invention. It is a top view of a pan head (camera is a horizontally long position) according to an embodiment of the present invention. It is a rear view of the pan head (camera is a landscape position) concerning an embodiment of the invention. It is a figure which shows the state which rotated 90 degree | times from the position shown in FIG. 4 the mounting frame of the pan head which concerns on embodiment of this invention. It is a figure which shows the state which rotated the mount frame for the pan head which concerns on embodiment of this invention 180 degree | times from the position shown in FIG. It is a side view of a pan head (camera is a vertically long position) according to an embodiment of the present invention. It is a figure which shows the state which attaches and uses the pan head (a camera is a vertically long position) which concerns on embodiment of this invention to the stand for cameras.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the “head U” in this embodiment is provided between a “stand S” for a camera that is an example of a gantry body and a “camera (digital camera) K” that is an example of an optical device. .

  The “head U” of this embodiment includes a tilt mechanism and a revolving mechanism. Hereinafter, each will be described in order with reference to FIGS. 2, 3, and 4.

First, the tilt mechanism will be described. The tilt mechanism refers to a mechanism that makes the operation possible by tilting the “camera K” in the front-rear direction (vertical direction). You may comprise by members (materials), such as a metal and resin.
The tilt mechanism is composed of parts of “RP base (revolve / pan head base) 1”, “tilt shaft 2”, “tilt lock 3”, “tilt shaft guide 4”, and “tilt shaft fixing 5”.

The “RP base 1” is a base of the “head U” and is a portion that is attached and fixed to the “stand S” for the camera.
The “tilt shaft 2” is a core shaft portion including a rotation shaft for tilt operation.
“Tilt lock 3” is a part that locks (fixes) the tilt operation, and a tightening mechanism (parts such as LEM-8X40-BK, which is a commercial product, or a pan bar, etc. can be substituted) is additionally processed. It is easy for the photographer to operate.
The “tilt shaft guide 4” is a portion that becomes a restriction (guide) when the “tilt shaft 2” rotates.
The “tilt shaft fixing 5” is a portion that supports and fixes the “tilt shaft 2”.

Hereinafter, the relationship between the components of the tilt mechanism will be described.
Step 1: The “tilt shaft 2” is fixed to the “tilt shaft fixing 5” with a small screw, a push screw, etc., and is firmly connected and fixed to the “RP base 1” for attaching to the “stand S” or the like.
Step 2: The “revolving base 6”, which will be described later, is interposed on both sides of the “tilt shaft 2” with a resin ring or the like for holding the gap between the “tilt shaft guide 4” and the “tilt lock 3”. Connect and fix to the lower surface of "".
Step 3: The “RP base 1” supported by the “tilt shaft guide 4” and the “tilt lock 3” can be tilted (back and forth) with the “tilt shaft 2” as the rotation axis (core shaft).
Further, the tilting operation is fixed (fixed) by a tightening mechanism (for example, LEM-8X40-BK) additionally processed to the “tilt lock 3”.

Next, the revolve mechanism will be described. The revolve mechanism refers to converting “camera K” into a vertically long position and a horizontally long position (without changing the optical axis of “camera K”). You may comprise by members, such as a metal and resin.
The revolve mechanism is composed of “ribo base 6”, “arm 7”, “hinge 8”, “hinge 9”, and “camera fixing seat 10”.
The revolve mechanism is mainly composed of a ribo base 6, an arm 7, a hinge 8, a hinge 9, and a camera fixing seat 10.

The “ribo base 6” is a portion that becomes the base of the revolving mechanism supported by the “tilt lock 3” and the “tilt shaft guide 4”.
The “arm 7” is a portion formed of a substantially rectangular member whose both ends are processed into R, and the “camera fixing seat 10” is attached in the vicinity of one end. "First plunger 11" and "second plunger 12" are attached to predetermined positions calculated and calculated in the vicinity of the center.
“Hinge 8” and “Hinge 9” are portions that sandwich “arm 7”. A “rotating shaft core 8-1” is provided through the “hinge 8”, “hinge 9” and “arm 7”, and the “arm 7” has an angle of 90 degrees around the “rotating shaft core 8-1”. Rotation is possible. “Hinge 8” and “hinge 9” function as bearings for “rotating shaft core 8-1”.
The “camera fixing seat 10” is a mounting frame of the “camera K”, and is formed with an external L-shaped appearance in a side view with a horizontal plate portion for camera mounting and a vertical plate portion for mounting on the “arm 7”. Has been. A predetermined camera fixing set screw having a through hole formed at a predetermined position is inserted in the horizontal plate portion for camera mounting.
Screwed into and fixed to a female screw hole (W1 / 4 "machine screw) provided on the bottom of" Camera K. "" Third knock hole "and" Fourth knock hole "for" Second plunger 12 ""Is provided on the L-shaped inner surface side of the vertical plate for mounting the arm with a positional relationship of 180 degrees. The “camera fixing seat 10” is attached in the vicinity of one end of the “arm 7” so as to be capable of rotating at an angle of 180 degrees about the “rotating shaft core 10-1”.

Hereinafter, the relationship between the components of the revolving mechanism will be described.
Step 5: A screw hole provided in the bottom surface of “Camera K” is positioned on an extension line directly above the fixing screw (W3 / 8 ”16 threads or W1 / 4” 20 threads) of “RP base 1” in advance. A numerical “arm 7” calculated as follows is attached. Then, by pulling the “first plunger 11” (for example, PLX-5X5-AK), releasing the lock (fixing) of the “arm 7” by the “first knock hole” processed and attached to the “hinge 8”, With the “arm 7” sandwiched between the “hinge 8” and the “hinge 9”, it is turned around the “rotary shaft 8-1” and is raised 90 degrees. ”And locked with a“ second knock hole ”provided.
Step 6: The “camera fixing seat 10” is attached to the “arm 7” so as to be capable of rotating 180 degrees around the “rotating shaft 10-1”, and the “second plunger 12” (for example, PLX-5X5-AK). ) To lock (fix) the “third knock hole” provided on the back side of the “camera fixing seat 10”.
Step 7: From the “rotation axis 10-1A” of the “camera fixing seat 10” to the optical axis (C) of the lens of the “camera K” and the “rotation axis 10-1A” of the “camera fixing seat 10”. The “camera fixing seat 10”, the height of which is adjusted, is set so that the numerical values up to the “rotary shaft 8-1B” when the “arm 7” is raised 90 degrees are the same size. Alternatively, the lengths of the “arm 7” between the pivot axes A and B of the “arm 7” may be adjusted so that the numerical values thereof are the same.
Step 8: When “Camera K” is in the horizontally long position, the fixing screw hole provided on the bottom surface of the “Camera K” lens is located, so that the “Camera fixing seat 10” is screwed in as it is. Use together.
On the other hand, when the camera is used as a vertically long position, the “first plunger 11” locked by the “first knock hole” is pulled off, and the “arm 7” is centered on the “rotating shaft 8-1”. Turn and raise 90 degrees and lock in "second knock hole". The optical axis of “camera K” located outside is (C ′). When the “second plunger 12” locked in the “third knock hole” is pulled off and rotated 180 degrees around the center of the “rotating shaft 10-1” and locked in the fourth knock hole, “camera K” The optical axis of the lens returns to the original position (C), and the “camera K” can be photographed at a vertically long position (state) on the “camera head U” without changing the optical axis.

Hereinafter, the usage mode of the “head U” of the present embodiment will be described with reference to the drawings.
The “head U” of the present embodiment has a “RP base 1”, a male screw (tap hole) provided on the bottom surface thereof (“RP base 1”) and a male for fixing in a “stand S” for mounting on a camera tower. Secure with screws. It should be noted that the use of W1 / 4 "or W3 / 8" inch screws is internationally a common standard in the photographic industry.
Then, the “camera K” is placed on the “camera fixing seat 10”, and the female screw provided on the bottom surface of the “camera K” and the fixing screw inserted through the “camera fixing seat 10” are screwed together. To fix securely.
In this manner, as shown in FIG. 1, the “camera K” is attached in the horizontally long position, and the photographer performs focusing on the subject in this state (see also FIG. 4).
If the photographer thinks that a photograph with a vertically long composition is better from the shape of the subject, remove the locked “first plunger 11” and center the “arm 7” around the “rotating shaft 8-1”. Rotate to (axis) and rise 90 degrees as shown in FIG. The optical axis of “camera K” is at the position “C ′”.
Further, when the locked “second plunger 12” is removed and the “rotary shaft 10-1” is rotated about the rotation axis 180 degrees as shown in FIG. 6 as shown in FIG. 6, the optical axis of “camera K” is the original. Returning to the position “C”, the camera “K” can be taken in the vertically long state on the pan head without changing the optical axis from the horizontally long position (see FIGS. 6 and 7).
That is, a transition is made from the state shown in FIG. 1 to the state shown in FIG. Since the optical axis is not changed, even if the “camera K” is converted from the horizontally long position to the vertically long position, the subject does not deviate from the center of the lens of the “camera K” and is not out of focus.

Conversely, the “head U” in this embodiment can be converted from the state shown in FIG. 8 to the state shown in FIG. 1.
That is, the locked “second plunger 12” is removed from the state shown in FIG. 6, and the “rotating shaft 10-1” is rotated around the center (axis) by an angle of 180 degrees, and the “camera K” (optical axis C) ') (See Fig. 5)
Next, the locked “first plunger 11” (plunger 11) is removed, and the “arm 7” is turned around the “rotary shaft 8-1” to lower the angle to the position shown in FIG. ), The optical axis of “camera K” returns to the original position (optical axis C), and it is possible to take a picture in a landscape state on “head U” without changing the optical axis from the vertically long position. .

  According to the present embodiment, since the “camera head U” does not have a rear wall, it is easy to use, and without changing the optical axis of the “camera K”, the vertically and horizontally long image composition on the camera platform. Conversion is possible.

  Since the tilt mechanism is built in the same range of medium-sized pan heads that are commercially available, the mass, height, and weight are the same, and the “head U” is horizontally long and vertically long. Since it can be converted into a position, the center of gravity does not change and further stability is obtained.

The conditions for returning the optical axis to the original position when converted into the vertical position and the horizontal position are the respective pivot axes of the “arm 7”, that is, the “numerical value Z” of “10-1A” and “8-1B”, The absolute condition is that the numerical values from “10-1A” to “optical axis C” of the “camera K” to be mounted are the same size (square).
Therefore, if “X” is set to a certain value,
Z = the formula “numerical value X” from the “rotation axis A” of the “camera fixing seat 10” to the upper surface + “numerical value Y” from the bottom surface of the “camera K” to the optical axis.
Note that the position (numerical value Y) of the optical axis of the “camera K” differs depending on the camera model. If several types with different values of “X” are prepared according to the formula of Z−Y = X, it is possible to deal with most mounted cameras.
In addition, it is sufficient to prepare several types of “arms 7” with different “numerical values Z” for a camera with a built-in battery and a camera connected to a battery case.
Aside from photographs that require particularly high precision, the “portrait photograph” at a general photo studio can be said to have an extremely small misalignment of a few millimeters. Therefore, the optical axis of the “camera K” can be sufficiently practically used not only in the case where the vertically long position and the horizontally long position completely coincide with each other, but also in the almost coincidence (proximity).

In addition, although not illustrated one by one, the present invention may be implemented with various modifications including the size and shape of each component within a range not departing from the structure. “Stand S” for a camera is an example of a gantry body, and “camera (digital camera) K” is an example of an optical device.
Further, the plunger is an example of a stopper mechanism, and may be provided with a stopper projection or the like provided so as to be freely movable.
An object to be fixed by screwing or the like is not limited to a camera stand, a tripod, or the like, but may be any object. Also, it is not an absolute requirement to attach to a camera stand or tripod.

U pan head S camera stand K camera 1 RP base 2 tilt shaft 3 tilt lock 4 tilt shaft guide 5 tilt shaft fixing 6 rib base 7 arm 8 hinge (8-1 rotation axis) B 3rd, 4th, knock hole 9 Hinge 10 Camera fixing seat (10-1 rotation axis) A 1st, 2nd, knock hole Camera fixing screw 11 1st plunger 12 2nd plunger

Claims (5)

A mounting frame for mounting optical devices having different vertical and horizontal dimensions in front view;
The mounting frame on which the optical device is mounted so as to be usable in a horizontally long position is rotated approximately 90 degrees around the first rotation axis in one horizontal direction of the horizontally long position, and further approximately 90 degrees. A pan head comprising: a rotating mechanism that rotates the mounting frame rotated approximately 180 degrees about a second rotation axis to enable the optical apparatus to be used in a vertically long position. A mounting frame for mounting optical devices having different vertical and horizontal dimensions in front view;
An arm to which the mounting frame is attached;
The mounting frame on which the optical apparatus is mounted so as to be usable in a horizontally long position is released from the locked state of the first position fixing member provided on the arm, and the horizontal position of the horizontally long position is determined. The mounting frame that is rotated approximately 90 degrees about the first rotation axis and further rotated approximately 90 degrees by rotating the arm approximately 90 degrees in one direction is provided on the arm. By releasing the locked state of the second position fixing member and rotating the arm approximately 180 degrees, the optical apparatus can be used in a vertically long position by rotating approximately 180 degrees around the second rotation axis. A pan head characterized by comprising a rotating mechanism.   3. The camera platform according to claim 1, wherein a position of an optical axis of a lens of the optical device is close to the horizontally long position and the vertically long position. 4.   The pan / tilt head according to claim 1, wherein the position of the optical axis of the lens of the optical device is the same at the horizontally long position and the vertically long position.   The state transition is possible from the vertically long position to the horizontally long position by a state transition opposite to the state transition from the horizontally long position to the vertically long position. The listed head.

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