JP3320696B2 - Dance fan with weight - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a dance fan.

[0002]

2. Description of the Related Art Dance fans are used as props to express various gestures during dance.
An open fan may be thrown into the air during the dance. At this time, in order to receive the fallen fan splendidly and continue to dance with the fan, it is necessary to make the fan always fall down the key. For this reason, conventionally, a weight made of metal such as lead has been buried inside the rib near the center.

[0005] That is, as shown in FIG. 5, elongated grooves 44, 45 having a depth of about 1 mm are provided on the inner surface of the rib 41 above and below a hole 43, and the grooves 44, 45 are formed therein. Metal weights 44b and 45b of the same size and shape made of lead or the like were inserted and fixed with an adhesive or the like.

[0004]

In the conventional dance fan as described above, when the fan is opened, the weights 44b, 45b
Appears, even if there is a slight gap or a step between the grooves 44, 45 and the weights 44b, 45b, the appearance is deteriorated. Therefore, in order to improve the appearance when the fan is opened, the weight 44
b and 45b and the grooves 44 and 45 are required to have high dimensional accuracy. However, since the material of the rib 41 is bamboo, such high-precision processing is difficult.
The addition of 5b complicates the manufacturing process of the dance fan bone, and has been a factor of increasing the cost.

The present invention has been made in order to solve such a problem, and an object of the present invention is to provide a weight which is easy to process and which does not impair the aesthetic appearance because it is invisible from the outside. To provide a dance fan.

[0006]

SUMMARY OF THE INVENTION The weight-containing dance fan according to the present invention, which has been made to solve the above problems, is concentric with
Penetrates the middle bone, and the outer diameter at the middle bone is the diameter of the required hole in the rib bone
The present invention is characterized in that a larger cylindrical metal weight is provided.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The fan is composed of two ribs arranged on the outermost side and a plurality of bones arranged between them, and it is necessary to bundle them and open them in a so-called fan shape. Provided. In essence, it is a metal fitting that penetrates one (root side) end of the aligned ribs and the middle bone, and is strong enough to open and close the fan with appropriate hardness. The middle bone is tightened and fixed by swaging.

In the dance fan according to the present invention, a weight is provided around the pivot. Since the weight is cylindrical and concentric with the pivot,
When opening the fan, the same axial action as that of the key is performed. Also,
Because it is provided through the middle bone, the sides are hidden by the middle bone, and both end faces are hidden by the ribs. Even when the fan is opened, the weight is not visible from the outside at all, resulting in a nice-looking dance fan.

Furthermore, in the dance fan according to the present invention, since the weight is cylindrical, the weight itself can be easily machined, and the fan (the main rib and the middle bone) in which the weight is built can be formed only by drilling a round hole. Becomes Therefore, as compared with the conventional case, the manufacturing process is significantly simplified, and the manufacturing cost is reduced.

The present invention can be suitably applied not only to a dance fan to be actually held and danced, but also to a decorative fan to be kept as a decorative product. Since the decorative fan is also set up in a dedicated fan stand with the key pointed down in the open state, the center of gravity moves to the key part below, which makes the decorative fan more stable. In addition, the open-ended appearance also overcomes the drawbacks of the conventional decorative fan.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A fan according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1A shows a dance fan 10 according to this embodiment.
Is a side view of a state of a fan bone before folding paper (folding paper; paper with a fold on a fan surface), and (b1) is a rib 1 of the fan bone.
1, (b2) is a front view of the middle bone 12.

FIG. 2 is an enlarged view of the periphery of the key 13. FIG. 2 (a1) is a sectional view, FIG.
(B) is a perspective view of the weight. As shown in FIG. 2 (a1), in the dance fan 10 of this embodiment, the weight 14 is
It is in a state of being built in a plurality of middle bones 12 sandwiched between 1 and 11. The weight 14 has a cylindrical shape as shown in FIG. 2B, and is provided with a hole 14a at the center for receiving the stoppers 13a and 13b acting as the key 13. The hole 14a may penetrate as shown in FIG. 2B, but does not have to penetrate as long as it has a depth capable of accommodating the stoppers 13a and 13b.

The length L2 of the weight 14 is set to be slightly shorter than the total thickness L1 of all the bones 12 sandwiched between the ribs 11. As a result, the stoppers 13a and 13b can tighten the middle bone 12 through the ribs 11, and the stopper 13
By changing the driving strength of the a and 13b to the weight 14, the rigidity when the fan 10 is opened can be arbitrarily adjusted.

As the material of the weight 14, it is preferable to use lead having a large specific gravity, similarly to the conventional fan. The dance fan 10 shown in FIG. 1 has a total length of about 30 cm, a thickness in which the rib 11 and the eight middle bones 12 are overlapped is about 20 mm, and a width near the key 13 is about 1 mm.
Although it is 0 mm, in the case of a conventional dance fan of this size, the total weight of the lead weights 44b and 45b (two each) conventionally attached by the method shown in FIG. 5 is about 4 g.
It was about. On the other hand, in the dance fan 10 of the present embodiment, as shown in FIG. 2B, the outer diameter D of the weight 14 is 7.6.
mm, the diameter d of the hole 14a is 3.2 mm, and the length L2 is 10.
By setting it to 5 mm, it is slightly heavier, about 4.4.
g (however, the specific gravity of lead is 11.3).

The necessary stoppers may be penetrating ones 13c and 13d as shown in FIG.

Another embodiment of the present invention is shown in FIG. In this example, both ends of the weight 24 are projected as shown in FIG.
Since the weight 24 is also incorporated in the rib 21, a heavier weight can be incorporated. Also in this case, similarly, penetration type stoppers 13c and 13d as shown in FIG. 3 may be used.

[Brief description of the drawings]

FIG. 1 is a side view (a), a front view (b1) of a rib, and a front view (b2) of a rib in a state of a fan of a dance fan according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view (a1), a front view (a2), and a perspective view of a weight (b) of a main part of the dance fan according to the first embodiment.

FIG. 3 is an enlarged cross-sectional view of the vicinity of the main part of the dance fan according to the first embodiment in which another stopper is used.

FIG. 4 is an enlarged cross-sectional view (a1), a front view (a2), and a perspective view of a weight (b) of a main part of the dance fan according to the second embodiment.

FIG. 5 is a front view (a) and a cross-sectional view (b) of an inner side surface and a weight near a main rib of a conventional dance fan.

[Explanation of symbols]

Reference Signs List 10 dance fans 11, 21, 41 ... ribs 12, 22 ... ribs 13, 23 ... required 13a, 13b, 13c, 13d, 23a, 23b ... stoppers 14, 24, 44b, 45b ... weight 43 ... required holes 44 , 45 ... groove for weight

Claims (1)

(57) [Claims] 1. Penetrate the middle bone concentrically with the center , and
A weight-containing dance fan, wherein a cylindrical metal weight whose outer diameter is larger than the diameter of the main hole of the rib is provided.