JP2017009822A - Camera balancer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lens holder that has a smaller size than the lens holder the inventor of the present invention has proposed earlier has, can have a reduced weight, can maintain a level of strength which is not compromised by the reduction in the size and weight, is not too bulky to carry, and can be removed from or attached to a tripod much more favorably than the lens holder proposed earlier is.SOLUTION: A lens holder 1 includes a holder body 10, an arm 6, a cylindrical support 7, a lock lever 5, and a camera fixing screw 11. The arm 6 is attached and fixed to a long hole 10a of a holder body side plate 10n with the lock lever 5. The cylindrical support 7 is fixed to the arm 6. The camera fixing screw 11 is engaged with a long hole 10f for the camera fixing screw.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a lens holder for supporting an interchangeable lens such as a telephoto lens and a zoom lens mounted on a camera.

  When a camera equipped with an interchangeable lens such as a telephoto lens is set on a tripod for photographing, if the weight of the interchangeable lens portion is large, lens shake is likely to occur due to lens weighting. Therefore, various lens holding devices for supporting the lens have been proposed to prevent this.

  As one of the devices, the apparatus for preventing camera shake described in Patent Document 1 uses a metal material having a large rigidity and a large weight in order to have a relatively compact shape and sufficient strength. Use a bolt with a lever part and a specially structured part related to it to adjust the length when supporting the lens part, it can be easily removed, and after positioning the arm with a long hole, it is easy with a small force It can be fixed.

  However, when this camera shake prevention device is fixed to the camera platform, with nothing placed on the camera platform, first pass a screw through the camera platform mounting hole and tighten the screw with the knob below the camera platform. It was a structure to attach, and handling was inconvenient.

Patent Document 2 proposes a camera support device with a telephoto lens that can arbitrarily adjust the camera support position in the front-rear direction, the side direction, and the vertical direction.
However, since the structure of the camera support position is such that the shape of the movable part matches the mounting part of the telephoto lens, there is a limit to holding the telephoto lens of any shape, Installation, telephoto lens, and camera body were also troublesome.

  Since the conventional lens holding device has such a problem, the present inventor has proposed a lens holder that eliminates the respective defects (Japanese Patent Application No. 2014-97520).

JP 2009-217173 A JP 2010-282039 A

The lens holder previously proposed by the present inventor can solve the above-mentioned drawbacks without problems, but has developed a lens holder with further improvements.
The object of the present invention is to further reduce the size and weight of the lens holder previously proposed by the present inventor (hereinafter referred to as “proposed lens holder”). The object is to provide a lens holder that increases the strength and is not bulky to carry, and that is very easy to attach to and detach from a tripod like the proposed lens holder.

In order to achieve the above object, according to a first aspect of the present invention, there is provided a lens holder for mounting and supporting a camera body on a tripod, using an unequal side aluminum flat pipe, a square hole of a predetermined size on a top plate and a camera. It has a long hole for projecting the screw part of the camera fixing screw for fixing the bottom part, the lower plate has a pan head female screw and a window for grasping the knob of the camera fixing screw, and both side plates are A holder main body having a long hole in the front-rear direction, and at least one side plate provided with a support pin for supporting the arm so as to be substantially parallel to the side plate when the arm is housed short, and at one end An arm having a guide hole for supporting a support having a curved surface in cross section and sliding and fixing to a long hole of any one of the side plates, and a screw between the long hole of the side plate and the guide hole of the arm The And a lock lever for attaching and fixing the arm at an appropriate angle and position with respect to the side plate by tightening and tightening, and the holder by screwing a pan head set screw into a pan head female screw on the lower plate of the holder body. A lower plate of the main body is attached to a pan head, a camera main body or a lens is directly or indirectly fixed to the camera fixing screw, and a lower portion of the lens mounted on the camera main body is supported by the support. .
According to a second aspect of the present invention, in the first aspect of the present invention, the same structure as the arm and the lock lever is attached to the other one of the side plates, and is supported by an arm fixedly held on the side plate. Supported by the bottom of the camera.
According to a third aspect of the present invention, in the first or second aspect of the present invention, a non-slip resin is affixed to the inner surface of the arm so that the arm fastened and fixed to the side plate by the lock lever does not slip. It is characterized by.
According to a fourth aspect of the present invention, in the first, second or third aspect of the present invention, a support support bar receiving notch for receiving a support bar for supporting the support is provided at one end of the side plate. Features.

Since the holder body has an unequal-sided aluminum square pipe structure, the size of the planar shape can be made smaller than the proposed lens holder while maintaining a predetermined strength, and by providing square holes and cylindrical support receiving windows at the front and rear of the holder body Further weight reduction can be achieved. Further, when the arm is extended by loosening the lock lever, the arm receiving pin does not lower the tip of the arm, so that it is easy to support the arm under the lens.
According to the second aspect of the present invention, since the other side plate can be supported by the arm and the lock lever, a camera equipped with a telephoto lens that is longer and heavier can be mounted near the base of the telephoto lens. The telephoto lens tip is supported by one support, and the bottom of the camera body is supported by the other support, so that a telephoto lens-equipped camera having a large size can be accommodated.
According to the third aspect of the present invention, when the lower holding position of the lens is determined and the lock lever is tightened to fix the arm to the side plate, the arm is firmly fixed to the side plate by the non-slip resin. It can be avoided that the support side of the arm is lowered due to the weight of the lens at the holding position.
Furthermore, according to the fourth aspect, by providing the support support bar accommodating notch in the side plate, the arm can be retracted to the position of the columnar support accommodating window, and the support supported by the arm can be accommodated in the window of the holder body. Since it can be made into such a foldable size, it is possible to reduce the portions protruding forward and backward of the holder body when contracted to the foldable size, and various effects can be obtained such as being convenient for carrying.

1A and 1B are diagrams showing an embodiment of a lens holder according to the present invention, wherein FIG. 1A is a plan view, FIG. 1B is a rear view, and FIG. 1A and 1B are views showing an embodiment of a holder body applied to a lens holder according to the present invention, wherein FIG. 1A is a plan view, FIG. 1B is a rear view, FIG. 1C is a front view, and FIG. ing. It is a figure which shows embodiment of the holder main body applied to the lens holder by this invention, (e) is a left view, (f) has each shown the right view. It is a figure which shows embodiment of a camera fixing screw, (a) is a front view, (b) is a right view, (c) has shown the left view. It is a figure which shows the structure of the arm which comprises the lens holder of FIG. 1, and a cylindrical support, (a) is a front view, (b) has each shown the left view. It is a figure which shows structures, such as a lock lever and a holding ring which comprise the lens holder of FIG. FIG. 6 is a view for explaining a method of attaching the camera body to the lens holder according to the present invention, and shows a state in which the lens holder is attached to the camera platform, the camera body is fixed to the lens holder, and the telephoto lens is supported. is there.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram showing an embodiment of a lens holder according to the present invention, in which (a) is a plan view, (b) is a rear view, and (c) is a front view. 2A and 2B are views showing an embodiment of a holder body applied to a lens holder according to the present invention, where (a) is a plan view, (b) is a rear view, (c) is a front view, and (d). Is a bottom view, (e) is a left side view, and (f) is a right side view.
The lens holder 1 includes a holder body 10, an arm 6, a cylindrical support 7, a lock lever 5, and a camera fixing screw 11.

The holder body 10 is made of, for example, 30 × 70 × 130 mm unequal-side aluminum square pipe material, and the holder body upper plate 10j on which the camera is mounted is formed with a square hole 10g for reducing the weight. A camera fixing screw long hole 10f for fitting to the camera fixing screw 11 is provided at the adjacent position. On both sides of the camera fixing screw long hole 10f, a rectangular cork buffer plate 2 for mounting a camera bottom, an assembly for easily mounting the camera, and the like is attached.
The holder main body lower plate 10k is embedded with a pan head female screw 10e, and a camera fixing screw knob window for operating the camera fixing screw knob 11a at the time of mounting / removing the camera at a position adjacent to the bottom screw 10e. 10 m is provided. A trapezoidal hole-shaped cylindrical support receiving window 10i is formed at the end of the holder main body upper plate 10j and the holder main body lower plate 10k on the side of the pan head female screw 10e to reduce the weight. Further, a trapezoidal open cylindrical support receiving window 10h is also formed at the end of the holder main body upper plate 10j on the cork buffer plate 2 side for weight reduction.

The holder main body side plate 10n is formed with a cylindrical support support bar accommodating notch 10b, and is further provided with a long hole 10a along the longitudinal direction. Furthermore, an arm receiving pin 3 is embedded so as to protrude next to the cylindrical support support bar accommodating notch 10b.
The holder body side plate 10l is also provided with a cylindrical support support bar accommodating notch 10d at the end opposite to the end where the notch 10b is formed in the holder body side plate 10n, and is further elongated along the longitudinal direction. 10c is provided. An arm receiving pin hole 4 is provided next to the cylindrical support support bar accommodating notch 10d. In this embodiment, the arm receiving pin for restricting the movement of the arm is not embedded in the holder main body side plate 10l.

FIG. 4 shows the structure of the arm and the columnar support constituting the lens holder of FIG. (A) is a front view, and (b) is a left side view.
The arm 6 has a rectangular shape, a lock lever guide hole 6a is formed in the longitudinal direction, and a non-slip resin 13 is attached to the entire surface in contact with the holder body side plate 10n.
A support bar 8 is attached to the tip of the arm 6, and a cylindrical support 7 is fixed to the support bar 8. The support bar 8 is inserted into a hole (not shown) formed in the distal end portion of the arm 6, and is fixed by being screwed with a set screw 15. A cylindrical support is located near the center of the support bar 8, a central through hole (not shown) is inserted into the support bar 8, and a set screw 9 is screwed and fixed to a screw provided in the support bar 8. Yes. The cylindrical support 7 is made of plastic. The thickness of the arm is 6 mm, for example, and the length and width are 160 × 24 mm.

By aligning the long hole 10a of the holder body side plate 10n and the lock lever guide hole 6a of the arm 6 and threading the shaft of the lock lever 5 with a screw and tightening, the length and inclination angle of the arm 6 with respect to the holder body side plate 10n are adjusted. Can be selected and fixed arbitrarily. By this operation, it is possible to freely select a support position for receiving the lens when the camera is attached to a tripod.
FIG. 5 shows structures such as a lock lever and a holding ring that constitute the lens holder of FIG.
The lock lever 5 (portion (a) in FIG. 5) has a structure in which a lever 5a is formed integrally with a cylindrical body 5b, and a columnar body 5d is fitted into a through hole (not shown) formed in the cylindrical body 5b. ing. The cylindrical body 5d has a screw 5c. A spring material (not shown) is built in between the cylindrical body 5d and the cylindrical body 5b, and the cylindrical body 5b is biased in the axial direction with respect to the cylindrical body 5d. By holding the lever 5a and pushing the head of the cylindrical body 5d, the cylindrical body 5b moves in the axial direction against the urging force, and can further rotate. With such a structure, it is possible to adjust the position of the lever 5a to a freely rotated position by pulling out and rotating the cylindrical main body 5b to release the cylindrical main body 5b. This is convenient when the lever 5a is moved and rotated to an unobtrusive position or an easy-to-use position.

  As an auxiliary member for tightening the lock lever 5, a metal retaining ring 17 (FIG. 5B), a plastic retaining ring 18 (FIG. 5C), and a square projection 19a that prevents rotation. A screw 19 ((d) in FIG. 5) is prepared. The attachment of the arm 6 to the holder body side plate 10n is performed by inserting the screw 5c of the lock lever 5 into the hole where the both are combined. First, a metal retaining ring 17 and a plastic material retaining ring 18 are inserted. This is performed by screwing and tightening the square screw 19 to the screw 5c of the lock lever 5 penetrating through the long hole 10a of the holder body side plate 10n. The projection 19a of the square screw 19 is fitted into the elongated hole 10a of the holder body side plate 10n, whereby the square screw 19 can be prevented from rotating when the lock lever 5 is tightened.

FIG. 3 shows an embodiment of the camera fixing screw.
The camera fixing screw 11 is provided with a star-shaped knob 11a on the screw part 11c, and has an E-ring retaining groove 11b and an upper plate back surface abutting part 11d between the screw part 11c and the star-shaped knob 11a.
The camera fixing screw 11 can be attached to the camera fixing screw long hole 10f by inserting the screw portion 11c into the camera fixing screw long hole 10f and fitting the E ring 12 therein.

FIG. 6 is a view for explaining a method of attaching the camera body to the lens holder according to the present invention, and shows a state in which the lens holder is attached to the camera platform, the camera body is fixed to the lens holder, and the telephoto lens is supported. is there.
The holder main body lower plate 10k of the lens holder 1 can be mounted on the camera receiving plate 30a of the pan head 30, and the pan head fixing screw 16 can be screwed onto the pan head female screw 10e and tightened.

  The camera body 31 on which the lens 32 is mounted is mounted on the holder body upper plate 10j by screwing and tightening the screw portion 11c of the camera fixing screw 11 to the female screw on the bottom of the camera body 31. It can be attached to the holder 1. The lower part of the lens 32 is supported by the cylindrical support 7, and camera shake can be prevented. By loosening the lock lever 5 and moving the position of the arm 6 back and forth to change the tilt angle, it is possible to select the optimum position for supporting the lens 32 by moving the cylindrical support position. By pulling up the lever 5a of the lock lever 5 toward the front side in FIG. 6, the cylindrical body 5b can be rotated to an arbitrary position, and by releasing the lever 5a at the rotated position, the angle of the lever 5a can be changed to an unobstructed position. Is as described above.

  In this mounting method, an example in which the bottom portion of the camera body 31 is directly mounted at the position of the cork buffer plate 2 of the lens holder 1 is shown, but an assembly for slidingly mounting the camera with one touch is mounted at the position of the cork buffer plate 2, A structure in which an L-shaped slide member attached in advance to the bottom of the camera is slide-mounted on the assembly in a different direction and the camera is mounted on the lens holder 1 by selecting either the normal horizontal position or the vertical position rotated by 90 degrees. Can be easily adopted.

  In the mounting method of FIG. 6, the method of holding the lens by attaching the arm supporting the cylindrical support to one holder body side plate has been described. However, the holder body side plate of the lens holder according to the present invention has both side plates. Since the long hole for attaching the arm is provided, the other holder body side plate can also be used with an arm that supports the columnar support. The cylindrical support of the arm attached to one holder body side plate supports the tip of the lens, the cylindrical support of the arm attached to the other holder body side plate supports the camera body, and the camera fixing screw 11 of the holder body 10. Then, it is possible to adopt a three-point support system in which the vicinity of the lens mount is supported and fixed.

  It is a lens holder that supports a telephoto lens mounted on the camera body and prevents camera shake.

DESCRIPTION OF SYMBOLS 1 Lens holder 2 Cork shock absorbing board 3 Arm receiving pin 4 Arm receiving pin hole 5 Lock lever 6 Arm 7 Cylindrical support 8 Support rod 9,15 Set screw 10 Holder main body 11 Camera fixing screw 12 E ring 13 Non-slip resin 16 Head Set screw 17, 18 Retaining ring 19 Square screw (lock lever set screw)
30 Head 31 Camera body 32 Lens

The present invention relates to a camera balancer for supporting an interchangeable lens such as a telephoto lens and a zoom lens mounted on a camera (which will be described as a “lens holder” in the following embodiments) .

Claims (4)

In the lens holder that attaches and supports the camera body on a tripod,
Using an unequal side aluminum flat pipe, it has a square hole of a predetermined size on the upper plate and a long hole for projecting the screw part of the camera fixing screw for fixing the camera bottom part,
The lower plate has a pan head female screw and a window for grasping the knob of the camera fixing screw,
A holder main body having a long hole in the front-rear direction, and a support pin configured to support the arm so that the arm is substantially parallel to the side plate when the arm is shortly accommodated in at least one side plate; ,
At one end, an arm having a guide hole for supporting a support having a curved surface in section and sliding and fixing to the long hole of any one of the side plates;
A lock lever that attaches and fixes the arm at an appropriate angle and position with respect to the side plate by tightening a screw between the long hole of the side plate and the guide hole of the arm;
Attach the lower plate of the holder body to the pan head by screwing the pan head set screw to the pan head female screw of the lower plate of the holder body,
A lens holder, wherein a camera body or a lens is directly or indirectly fixed to the camera fixing screw, and a lower part of a lens attached to the camera body is supported by the support.   2. The camera according to claim 1, wherein the same structure as the arm and the lock lever is attached to the other one of the side plates, and the bottom of the camera is supported by a support supported by an arm fixed to the side plate. The lens holder according to 1.   3. The lens holder according to claim 1, wherein a non-slip resin is affixed to an inner surface of the arm so that the arm fastened and fixed to the side plate by the lock lever does not slip.   4. The lens holder according to claim 1, wherein a support support bar accommodating notch for accommodating a support bar that supports the support is provided at one end of the side plate.

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