JPS6335621Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to the improvement of a fan, and by assembling several blade pieces made of carbon fiber reinforced resin (CFRP), the present invention achieves a suitable bending effect when used as a fan. In addition, it is designed to provide durable strength, a sense of luxury and novelty in terms of product design, and to eliminate the need for attaching separate paper, thereby maximizing the effectiveness of mass production.

Hereinafter, the specific configuration of the present invention will be described in detail based on the illustrated embodiment. In FIGS. 1 to 5 showing the fan, 11 is several blade pieces made of carbon fiber reinforced resin (CFRP). A through hole 12 for a pivot pin is opened at the base end in the longitudinal direction. 13 is a slide guide elongated hole that is opened in the width direction in the middle of the blade piece 11, and 14 is a protrusion that is erected from one end position of the guide elongated hole 13, and its standing height is is set to be the same size as the wall thickness T of the blade piece 11 itself, or smaller than this.

A pivot pin 15 is inserted into the through hole 12 so as to skewer all the blade pieces 11, and a projection 14 rising from one of the adjacent blade pieces 11 is inserted into the through hole 12.
is fitted into the elongated guide hole 13, which is also open on the other side, so that the entire assembly is foldable in an openable/closable manner. Depending on the opening/closing operation, one protrusion 14 moves into the other guide elongated hole 1.
Needless to say, there is a relative sliding action along 3.

When creating the blade piece 11 having the above-mentioned form, it may be formed from carbon fiber reinforced resin using a mold, or it may be created through punching and bending using a press mold. Also good. In other words,
For example, as shown in FIGS. 6 and 7, a tape body M in which a carbon fiber membrane 16 is laminated and integrated in a so-called sandwich state with a pair of base materials 17 made of epoxy resin or other synthetic resin is used. The blade piece 11 is then punched out using a press die 18 to form a blade piece 11 having the through hole 12 and slide guide elongated hole 13 as shown in FIG. Then, the blade piece 1
While heating the guide hole 1, a protrusion 14 as shown in FIGS. 4 and 5 is bent from one end of the elongated guide hole 13.

In any of the above manufacturing methods, the wall thickness T and band width W of the blade piece 11 can be changed in the longitudinal direction, and in particular, the wall thickness T can be changed as shown in FIG. 9b. It is preferable to make the blade gradually thinner toward the tip of the blade piece 11 so that the bending action when used as a fan can be more effectively exerted. In addition, the surface of the blade piece 11 may be provided with an unevenness 19 depicting a pattern such as the one shown in FIG.
It is also possible to form other decorative holes 20, etc., as shown in FIG. 9a, and by doing so, it is possible to easily add interest to the product design.

Further, as the material form of the blade piece 11, for example, a carbon fiber membrane 16 impregnated or sprayed with a synthetic resin as the base material 17 is used, and the texture of the carbon fiber membrane 16 is intentionally exposed on the surface thereof. If this is the case, together with the coloring of the base material 17, it is possible to create a temporary folding fan that is even more interesting and varied. The overall contour of the fan can be finished into a rounded shape as shown in FIG. 1 or other contours, for example, by combining blade pieces 11 of various shapes and sizes.

In any case, due to its structure, the fan of this invention has
Several blade pieces 11 made of carbon fiber reinforced resin are connected by concave-convex fitting between adjacent blade pieces 11, and a pivot pin 15 is passed through the base end of all the blade pieces 11 to open and close them. Since it is assembled so that it can be folded freely, it can exhibit a suitable bending action when used as a fan, and its light weight can also be achieved.

In addition, the adjacent blade pieces 11 are slidably connected by fitting the protrusions 14 and the slide guide elongated holes 13, etc., and since no separate paper or the like is attached, durability is improved. Extremely effective in mass production. Furthermore, it is easy to add decorative irregularities 19 and punch holes 20 to the blade piece 11, which makes it possible to add variety to the design of the product, making it a practical idea. be.

[Brief explanation of the drawing]

Figure 1 is a schematic slope view of the fan according to the present invention, Figure 2
The figure is an enlarged slope view of a partially cutaway part, and Fig. 3 is an enlarged sectional view of a partially folded state along the - line of Fig. 2.
Figure 4 is a slope view showing the extracted blade pieces, Figure 5
The figure is an enlarged sectional view taken along the - line in Figure 4,
FIG. 7 is a perspective view showing the process of making the blade pieces, FIG. 8 is a perspective view showing the state of punching out the blade piece, and FIG. 9 is a perspective view showing various modifications of the blade piece. 11...Blade piece, 13...Slide guide long hole, 14...Protrusion, 15...Pivot pin, M...Tape body (material).

Claims (1)

[Claims for Utility Model Registration] 1. Several blade pieces molded from carbon fiber reinforced resin (CFRP) are connected by concave-convex fitting between adjacent blade pieces, and at the base end of all the blade pieces. A folding fan with a pivot pin inserted through it. 2 Utility model registration in which each blade piece is provided with a protrusion and a slide guide elongated hole, and the protrusion of one of the adjacent blade pieces is slidably fitted into the other guide elongated hole. A folding fan according to claim 1. 3. A fan according to claim 1 of the Utility Model Registration Claim, in which the thickness of the blades is set to gradually become thinner toward the tip thereof. 4. A folding fan according to claim 1 of the utility model registration claim, which is formed by adding irregularities to the surface of the blades. 5 The material carbon fiber reinforced resin is made into a solid state by impregnating the carbon fiber membrane with a synthetic resin base material such as epoxy resin, and the woven surface of the carbon fiber membrane is applied to the surface of a blade piece punched from the material. Claims for Utility Model Registration: A folding fan as set forth in item 1.