JP3938182B2 - Studio box - Google Patents

Description

The present invention relates to an improvement of a studio box that can perform a good lighting operation on a subject, and more particularly to a dome-shaped studio box that is easy to carry and that is easy to set up and remove.

  Conventionally, various types of dome-shaped studio boxes that are small and easy to carry have been proposed for photographing articles or the like to be exhibited in an online auction with a digital camera or the like.

Above all, the wire with springiness is folded and stored in a small size by twisting or bending, etc. When setting up, the spring property of the wire is used to restore the original shape, that is, a small dome-shaped studio box There is something like that.

  However, the conventional type studio box that uses the spring property of the above-described conventional wire, folds and stores it, or restores the original dome shape, uses the wire property of the wire, so that the operation is unfamiliar. In some cases, it is difficult to fold and store it in a small size, and when restoring to the original dome-shaped studio box, there is also a difficulty that it can not be restored to the original dome shape due to the spring force acting in any direction there were.

  In view of the circumstances described above, an object of the present invention is to provide a studio box that can be folded and set up very easily and that can be easily and accurately restored to the original dome shape.

In order to solve the above-described problems, in the present invention, in the studio box capable of deforming the reflection sheet member into the dome installation position and the folding position via the restoration and folding means, the restoration and folding means is a central member. A plurality of main bones that are rotatably supported so as to be radially centered on each other, and the main body is radially positioned about the central member, and the reflective sheet The central member comprises a dome construction position for extending a member between the main bones and a main bone moving means for deforming the main bones to a folding position of the reflecting sheet member by positioning the main bones substantially parallel to each other. An insertion hole is formed at the center of the main body, and the main bone moving means is formed in a substantially cylindrical shape and has a protrusion that is inserted into the insertion hole of the center member. A link structure comprising a moving piece and a plurality of supporting bones, one end of which is rotatably supported on the peripheral surface of the moving piece, and the other end of which is rotatably supported via a shaft portion on the corresponding main bone. In addition, when the projection of the moving piece is inserted into the insertion hole of the central member and the reflecting sheet member is placed at the dome installation position to be stretched between the main bones, the moving piece is is set to the central member side near said Rukoto the boundary of the plane formed by connecting the shaft portion of the main bone which supports the supporting bone rotatably.

  According to the studio box described above, it is possible to restore the dome shape by stretching the reflecting sheet member between the main bones by simply operating the main bone moving means and positioning each main bone radially. The reflective sheet can be folded simply by positioning the main bones substantially parallel to each other, so even a person who operates for the first time with the same operation as holding an umbrella can easily and accurately set up and fold a dome-shaped studio box. Operation.

  Hereinafter, embodiments of the position of the studio box according to the present invention will be described in detail.

  FIG. 1 is a conceptual perspective view of a dome-shaped studio box 1 according to the present invention.

    The studio box 1 includes four main bones 2, 3, 4, and 5 and four reflecting sheet members that are substantially triangular and are stretched between the four main bones 2, 3, 4, and 5. It has a quadrangular dome shape consisting of 10, 11, 12, and 13.

  Of the four reflecting sheet members 10, 11, 12, and 13, the reflecting sheet member 10 located in the front is set shorter than the other reflecting sheet members 11, 12, and 13, and is substantially below. A rectangular photographing window 14 is formed.

  In addition, between the lower ends 2a and 3a of the pair of main bones 2 and 3 constituting the lower part of the imaging window 14, when the main bones 2 and 3 are installed in the illustrated dome shape, they are not separated from each other. It is connected by a string 15 made of the same material as the reflection sheet member.

  In addition, a slit 13 a for inserting a back sheet, which will be described later, is formed in the rear reflective sheet member 13 facing the front reflective sheet member 10, and one end of the back sheet is formed at the lower end of the slit 13 a. A magic tape (registered trademark), which is a sticking means 16 to be attached to the tape, is attached.

  In addition, spherical feet 17 are fitted to the lowermost ends of the four main bones 2, 3, 4 and 5 in order to stabilize the sitting of the dome-shaped studio box 1.

  Next, the restoring and folding means for displacing each of the reflection sheet members 10, 11, 12, and 13 described above to the dome installation position shown in FIG. 1 and a folding position described later will be described.

FIG. 2 is a conceptual perspective view showing a state in which the reflection sheet members 10, 11, 12, 13 and the like are removed from FIG. 1, and particularly shows the restoration and folding means 20 in detail.
The restoring and folding means 20 is supported by four main bones 2, 3 and 3 which are rotatably supported radially around a central member 21 and which have the reflecting sheet members 10, 11, 12, and 13 disposed therebetween. 4 and 5 and the respective main bones 2, 3, 4 and 5 are radially positioned around the central member 21, and the respective reflecting sheet members 10, 11, 12 and 13 are respectively arranged as shown in FIG. The dome setting position for restoring the original dome shape by stretching between the bones 2, 3, 4 and 5 and the main bones 2, 3, 4 and 5 are positioned substantially parallel to each other as shown in FIG. Thus, a main bone moving means 30 for displacing each reflecting sheet member 10, 11, 12, 13 to a folding position for folding is provided.

  Among these, as shown in FIG. 2, the center member 21 is formed in a substantially cylindrical shape, and a fitting hole 21a into which a projection of a main bone moving means 30 described later is fitted is formed in the center. Further, the main bones 2, 3, 4, and 5 are rotatably supported on the peripheral surface via the shaft portion 22 at equal intervals.

  On the other hand, as shown in FIG. 3, the main bone moving means 30 is composed of a moving piece 31 formed in a substantially cylindrical shape and a protrusion 32 protruding from the upper surface of the moving piece 31.

  As shown in FIG. 2, four support bones 40, 41, 42, 43 are rotatably supported on the peripheral surface of the moving piece 31 via the shaft portion 44 at equal intervals. The distal ends of 40, 41, 42, and 43 are rotatably supported by the corresponding main bones 2, 3, 4, and 5 via shaft portions 45.

That is, the main bones 2, 3, 4, and 5 corresponding to the support bones 40, 41, 42, and 43 have a link structure.

  Note that a hole 32a is formed at the tip of the protrusion 32 described above, and a pull string 50 is inserted into the hole 32a, and the pull string 50 is inserted into the tip from the insert hole 21a of the central member 21. A spherical stopper 51 is fixed so that the string 50 does not fall off.

Next, the operation of the studio box 1 described above will be described.

In order to restore the original dome shape from the folded state of the studio box 1 shown in FIG. 4, the operator first pulls the stopper 51 in the direction of arrow A.

Then, the moving piece 31 of the main bone moving means 30 shown in FIG. 3 moves up as shown by the arrow B through the string 50. At that time, as shown in FIG. 2, the protrusion 32 of the moving piece 31 is inserted into the insertion hole 21 a of the center member 21.

  Thus, when the protrusion 32 of the moving piece 31 is inserted into the insertion hole 21a of the central member 21, the support bones 40, 41, 42, 43 and the corresponding main bones 2, 3, 4, 5, respectively. The main bones 2, 3, 4, and 5 are positioned radially by the link motion between them, and as a result, the reflecting sheet members 10, 11 disposed between the main bones 2, 3, 4, and 5 are arranged. , 12 and 13 are stretched as shown in FIG.

Further, in order to return to the folding position shown in FIG. 4, the operator only has to push the protrusion 32 shown in FIG. 2 downward as indicated by arrow C. In this case as well, the supporting bones 40, 41, 42, 43 are pressed. As shown in FIG. 3, the main bones 2, 3, 4, and 5 are positioned at positions substantially parallel to each other, as shown in FIG. As a result, the studio box 1 is folded as shown in FIG.

  In actual use, as shown in FIG. 5, one end 60 a of the back sheet 60 having a reflection function is pulled out through the slit 13 a and the one end 60 a of the back sheet 60 is a reflection sheet as the sticking means 16. Affixed to the Velcro (registered trademark) disposed on the back surface of the member 13.

Needless to say, such a backsheet 60 sticking structure makes it very easy to set up and remove the backsheet 60.

Then, when the subject 71 is placed on the surface of the back sheet 60 and the light emitting device such as a strobe is emitted using the photographing device 72 such as a digital camera, the light reflected in the studio box 1 is sufficiently applied to the back of the subject. This makes it possible to perform a good lighting operation with no shadow on the subject.
In the above embodiment, the four dome-shaped studio box 1 having four main bones has been described in detail. However, the present invention is not limited to the above embodiment and, of course, has four or more main bones. You may apply to a dome shape studio box.

Further, in the above embodiment, the short reflective sheet member 10 is stretched between the main bones 2 and 3 so as to form the photographing window 14 having a constant opening area. For example, an expansion member such as a fastener is disposed between the main bones 2 and 3 and the reflection sheet member 10, and the reflection sheet 10 is lifted upward by operating the fastener, thereby The opening area of the photographing window 14 may be enlarged so that the subject can be photographed from a higher position.

  In the above embodiment, spherical feet 17 are fitted to the lowermost ends of the four main bones 2, 3, 4 and 5, thereby stabilizing the sitting of the dome-shaped studio box 1. However, gaps are formed between the lowermost ends of the main bones 3 and 4, between the lowermost ends of the main bones 4 and 5, and between the lowermost ends of the main bones 5 and 2, and unnecessary light may enter inside from there. However, in order to prevent this, for example, a frill-like reflection or light-shielding member that covers the gap described above may be provided continuously at the lower end of each of the reflection sheet members 11, 12, and 13.

  The present invention is suitable for a studio box that can be folded and set up very easily and that can be easily and accurately restored to its original dome shape.

FIG. 1 is a conceptual perspective view of a studio box according to the present invention. FIG. 2 is a conceptual perspective view of the main bone moving means. FIG. 3 is a conceptual perspective view showing the operation of the main bone moving means. FIG. 4 is a conceptual perspective view showing a state in which the studio box according to the present invention is folded. FIG. 5 is a conceptual perspective view showing a use state of the studio box according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Studio box 2, 3, 4, 5 ... Main frame 10, 11, 12, 13 ... Reflective sheet member 13a ... Slit 16 ... Adhering means 20 ... Restoration and folding means 21 ... Center member 21a ... Insertion hole 30 ... Main bone moving means 31 ... moving piece 32 ... projections 40, 41, 42, 43 ... supporting bone 50 ... drawing string 51 ... stopper 60 ... back sheet

Claims (3)

In the studio box that can transform the reflection sheet member into the dome setting position and the folding position via the restoring and folding means,
The restoration and folding means is
A plurality of main bones that are rotatably supported so as to be radially centered on the central member, and on which the reflective sheet member is supported;
By positioning the main bone radially about the central member, the reflecting sheet member is stretched between the main bones, and a dome installation position and the main bones are positioned substantially in parallel with each other. It consists of a main bone moving means that deforms to the folding position of the member,
An insertion hole is formed in the center of the central member, and the main bone moving means is formed in a substantially cylindrical shape and a moving piece formed with a protrusion that is inserted into the insertion hole of the central member, One end is rotatably supported on the peripheral surface of the moving piece, and the other end is a link structure including a plurality of support bones rotatably supported via a shaft portion on the corresponding main bone,
Further, when the projection of the moving piece is fitted into the fitting insertion hole of the central member and the reflecting sheet member is placed at the dome setting position for stretching between the main bones, the moving piece is supported by the support piece. The studio box characterized by being on the side of the central member with a plane formed by connecting shaft portions of the main bones rotatably supporting bones .
A pulling string for pulling the protrusion is engaged with the tip of the protrusion, and a stopper for preventing the pulling string from dropping from the insertion hole of the central member is fixed to the rear end of the pulling string. The studio box according to claim 1.
2. The studio according to claim 1, wherein the reflection sheet member is formed with a slit for inserting one end of a back sheet that reflects light and an attaching unit for attaching one end of the back sheet. box.

Images