JP2009251256A - Float arm structure for underwater photographing equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a float arm structure for underwater photographing equipment which achieves further weight reduction underwater by inserting, attaching and fixing a float in a hole bored for the purpose of weight reduction of an arm, to which photographing equipment used underwater, for example, a strobe or the like is attached and whose weight reduction is variously devised, from the right and the left sides of the hole. <P>SOLUTION: The float arm structure comprises an arm body 1 which is used underwater, to which the photographing equipment used underwater is attached, and whose weight reduction is contrived, and at least one float body 41, 42, 43 or 44 which achieves weight reduction of the arm body 1 and is set at a desired spot. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a float arm structure for an underwater photographing apparatus in which an arm for mounting a photographing apparatus such as a strobe used in water is lightened by various means and the arm is made lighter in water.

  In recent years, underwater leisure has developed, and for that reason, underwater leisure using various equipment has been flourishing. Although professional divers play a leading role in this underwater leisure, the demands of these people are also strong, and the weight reduction of the equipment is being planned in response to the requests of general divers.

Although the strength of the device is sacrificed to some extent when the weight of the device is reduced, the weight reduction is still desired for the convenience of handling in water. For example, it is possible to prepare a tank in the device and put air into it, or to tie a flow around the device. However, Patent Document 1 also proposes the purpose of reducing the weight, but it is still insufficient. .
Japanese Patent Laid-Open No. 11-237688

  The problem to be solved by the present invention is that the arm for mounting a photographic device used underwater, such as a strobe, has been reduced in weight by various means, and the hole opened for the weight reduction of this arm is used. It is in the float arm structure of the apparatus for underwater photography in which the weight is further reduced underwater by inserting and fixing the float from the left and right sides of the hole.

  The float arm structure of the present invention is used underwater, and is provided with an arm main body for weight reduction to which a photographing device used underwater is mounted, and at least one set at a desired position for the lightening of the arm main body. This means that a desired number of floats can be adjusted and attached to an arm whose weight has been reduced, and buoyancy can be adjusted.

  According to the first aspect of the present invention, the arm body is used underwater and is attached to a desired portion where the weight of the arm body is reduced, and the arm body is attached to the imaging device to be used underwater. Because it is composed of at least one float body, the weight of the arm body, which has been reduced in weight, can be further reduced, so that the buoyancy becomes stronger and activities can be freely performed in the water, and an appropriate number of floats can be attached. Therefore, it is possible to provide a float arm structure for an underwater photographing apparatus that can adjust the buoyancy and thus can expect a desired buoyancy.

  In the present invention, a float is attached to a portion of the arm body which is used underwater to reduce the weight, and the float can be adjusted in number so that the buoyancy can be adjusted. Divers can act lightly.

  Below, the attachment float arm structure of the underwater photography equipment concerning the example of the present invention is explained.

Example 1
With reference to FIG. 1 to FIG. 2, an attachment float arm structure for an underwater photographing apparatus according to Embodiment 1 of the present invention will be described.

  Reference numeral 1 denotes an arm main body to which an underwater photographing apparatus to be used underwater is attached. This arm main body 1 constitutes attachment hooks 2 to which the underwater apparatus is attached at both left and right ends. Further, the arm body 1 has a plurality of holes 31, 32, 33, and 34 for weight reduction, thereby realizing further weight reduction. Of course, in this case, the shape of the hole 31 does not need to be circular, and since the holes 31, 32, 33, and 34 have the same structure, the hole 31 will be described.

  A plurality of float bodies 4, 42, 43, 44 are inserted and fixed in the respective holes 31 of the arm body 1 in correspondence with each other. In this case, since the float main bodies 41, 42, 43, and 44 have the same structure, the float main body 41 will be described. The structure of the float body 41 is formed by integrally forming the flange portions 61, 62, 63, 64 with the cylindrical portions 51, 52, 53, 54 at one end of the cylindrical portions 51, 52, 53, 54. The diameters 61, 62, 63 and 64 are larger than the diameters of the cylindrical portions 51, 52, 53 and 54. Fastening rings 71, 72, 73, 74 are fitted to the opposite ends of the float bodies 41, 42, 43, 44. In this case, the diameters of the fastening rings 771, 72, 73, 74 are longer than the diameters of the cylindrical portions 51, 52, 53, 54.

  The dimensional relationship between the float bodies 41, 42, 43, 44 and the holes 31, 32, 33, 34 is such that the cylindrical portions 51, 52, 53, 54 can be inserted into the holes 31, 32, 33, 34. The diameters of the flanges 61, 62, 63, 64 and the fastening rings 71, 72, 73, 74 are set longer than the diameters of the holes 31, 32, 33, 34. Accordingly, when the tips of the cylindrical portions 51, 52, 53, 54 are inserted into the holes 31, 32, 33, 34 and tightened with the tightening rings 71, 72, 73, 74 on the opposite side, the holes 31, 32, 33, 34 are inserted. The float main bodies 41, 42, 43 and 44 are securely fixed. FIG. 1 shows a state in which one float body 41 is mounted among the four float bodies 41, 42, 43, 44, and the remaining float bodies 42, 43, 44 are in a state in which they are attached to the holes 32, 33, 34. It is shown. FIG. 2 shows a state where all the float main bodies 41, 42, 43, 44 are attached to the holes 31, 32, 33, 34.

  Next, when removing one float main body 41 from the hole 31, the float main body 41 can be removed by pulling the clamping ring 71 strongly from the cylindrical portion 51. Further, in this case, it has been described that the fastening ring 71 is removed by pulling the structure. However, the attachment / removal structure of the fastening rings 71, 72, 73, 74 and the cylindrical portions 51, 52, 53, 54 is the fastening rings 71, 72, 73, A structure may be adopted in which 74 is screwed into a threaded portion in which the ends of the cylindrical portions 51, 52, 53, 54 are processed. Of course, other attachment / detachment structures may be used, and various applications can be made without departing from the scope of the present invention.

  The diameters of the cylindrical portions 51, 52, 53, 54 to which the fastening rings 71, 72, 73, 74 are fastened and fixed without using the fastening rings 71, 72, 73, 74 are slightly increased. Thus, if the cylindrical portions 51, 52, 53, 54 are forcibly inserted into the holes 31, 31, 33, 34, the float main bodies 41, 42, 43, 44 can be fixed.

  The underwater photographing apparatus mounting float arm structure of the present invention can be attached to the arm body by appropriately increasing / decreasing a plurality of float bodies, so that it is easy to adjust the buoyancy and is useful for reducing the weight of the arm body 1.

It is a disassembled perspective view which shows the attachment float arm structure of the underwater imaging device which concerns on the Example of this invention. It is a perspective view of the attachment float arm structure of the underwater photography equipment concerning this example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Arm main body 2 Mounting hook 31,32,33,34 Hole 41,42,43,44 Float main body 51,52,53,54 Cylindrical part 61,62,63,64 collar part 71,72,73,74 Fastening ring

Claims (2)

  An arm body that is used underwater and that has a light weight for mounting a photographing device to be used in water, and at least one float body that is set at a desired location of the arm body to reduce the weight. Float arm structure for mounting underwater photography equipment. 2. The float body according to claim 1, wherein the float body is structured to be attached to a light-weight portion of the arm body from the left and right.

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