JP2008295996A - Opening and closing mechanism and slidable opening and closing type fan - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening and closing mechanism and a slidable opening and closing type fan, convenient to carrying, having high degree of flexibility in form and design, and easily assembled in manufacture. <P>SOLUTION: A plurality of sheets are connected to each other by a member penetrating the proximal ends thereof, and the maximum turning angle and the minimum turning angle are fixed depending on a difference in angle of fold-back parts of the sheets connected to the fold-back parts of the proximal ends or angle of cutting parts by a turning connecting means for locking the connected sheets at an optional angle and operatively connected with each other. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to an opening and closing mechanism and a slide opening and closing fan that are opened and closed by connecting a plurality of opening and closing members made of paperboard, a synthetic resin sheet, or the like.

Conventionally, as a fan, there are a fan with a sheet of paper or the like stretched around a skeleton and a folding fan. In addition, as a method of fixing and interlocking a plurality of sheets at an arbitrary angle, there is a method of making a portion that hooks the sheets that are connected when rotating (see, for example, Patent Document 1 and Patent Document 2).
Japanese Laid-Open Patent Publication No. 6-21475 (Fig. 1) Japanese Laid-Open Patent Publication No. 10-179226 (Fig. 5)

Conventional fan is not suitable for portable use. In the case of a fan, although it is preferable for carrying, a manufacturing cost is comparatively high and there is no freedom of form.

In addition, in the method of creating a portion to be hooked on a sheet that is connected, holes and protrusions are required for each sheet (Patent Document 1), and the form is fixed (Patent Document 2), so the degree of freedom in design is lost.

In addition, the method of creating a portion to be hooked to the connecting sheets requires a connecting operation of the sheets at the time of assembling and costs high.

The problem to be solved by the present invention is to provide a slide opening / closing fan opening / closing mechanism that is convenient to carry, has a high degree of freedom in form and design, and is easy to assemble during manufacture, and a fan using the opening / closing mechanism.

The opening / closing mechanism of the present invention is connected to the turn of the base end portion by a rotation connecting means that interlocks the interlocked sheets by locking the connected sheets at an arbitrary angle by a plurality of sheets connected by a member penetrating the base end portion. The maximum rotation angle is fixed and interlocked according to the difference between the folded portion angle or the cut portion angle of the sheet.

The opening / closing mechanism of the present invention is a rotating means for locking all the sheets at an arbitrary angle by a plurality of sheets connected by a member penetrating the base end part, and the uppermost sheet base end part folding and other sheets The minimum closing angle is fixed by the difference in the cutting portion angle.

The fan of the present invention is a sheet that is connected to the folded back of the base end portion by a rotating connecting means that interlocks the interlocked sheets by locking them at an arbitrary angle by a plurality of sheets connected by a member penetrating the base end portion. An opening / closing mechanism is provided in which the maximum rotation angle is fixed and interlocked according to the difference between the folded portion angle or the cutting portion angle.

The fan of the present invention is a rotating means for locking all the sheets at an arbitrary angle by a plurality of sheets connected by a member penetrating the base end part, and the folding of the uppermost sheet base end part and other sheets An opening / closing mechanism for fixing a minimum closing angle based on a difference in cutting portion angle is provided.

While each sheet cannot be locked with a sheet that is simply connected by a member penetrating the base end, it is possible to arbitrarily set the locking angles of the folded state and the opened state. it can.
Since only the base end portion has the opening / closing mechanism, all the shapes of the sheets other than the base end portion can be arbitrarily formed.
A mechanism that locks the folded end of each sheet with the base end of the adjacent sheet pinched prevents pinching pressure due to the thickness of the material from being folded during use it can.

Because it is easy to assemble at the time of manufacture, the manufacturing cost can be reduced as compared with the conventional open / close fan and fan.

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiments of the present invention will be described in detail with reference to examples shown in the drawings.

FIG. 1 is an expanded state of the present invention when the fan is viewed from the front side, and FIG. 2 is a closed state of the present invention when the fan is viewed from the front side.

The fan of the present invention is composed of a plurality of arbitrary sheets and a cylindrical clip 6 such as a grommet and a plastic screw as a rotation shaft, and the maximum expansion angle A of FIG. 1 from the closed state of FIG. Rotate to the state. In the embodiment, five sheets 1 to 5 are connected by a cylindrical clip 6 and the maximum spread angle A is 120 degrees. At this time, the spread angle with the connected sheets is 30 degrees.

The sheets 1 to 5 are made of a foldable paperboard or a synthetic resin sheet.

FIG. 3 shows the sheets 1 to 5 separated from each other. FIG. 4 is a detailed view of the base end rotation mechanism of each sheet 1-5.

The rotation fulcrum B of the sheets 2 to 5 is overlapped on the sheet 1 and the cylindrical clip 6 is penetrated. Fold back at 1a and sandwich sheets 2-5. At this time, the portions 2a, 3a, 4a, and 5a of each sheet hit the folding line 1a of the sheet 1, thereby preventing reverse opening from the closed state of FIG. Further, by setting the angles of 1a, 2a, 3a, 4a, and 5a to the same angle with respect to the rotation basic axis C of each sheet, the rotation basic axis of each sheet can be fixed at the same position when closed as shown in FIG. it can.

When the distance from the rotation fulcrum B of the sheet 1 to the folded portion 1a is 1c, the sheet 2 has a distance 2c obtained by subtracting the material thickness from the rotation fulcrum B to the sheets 2 to 4, and the sheet 3 is The sheet 4 is provided with folded portions 2f, 3f, and 4f that are folded at tangents 2e, 3e, and 4e with respect to a circumference having a radius of a distance 4c obtained by subtracting the material thickness from 2c and a distance 4c obtained by subtracting the material thickness from 3c. The sheet 5 is provided with a cutting surface at a tangent line 5e with respect to the circumference having the same distance 5c as the radius 4c from the rotation fulcrum B. At this time, the angle difference between 2e, 3e, 4e, 5e and the rotation base axis C is the maximum spread angle of each sheet with respect to the sheet 1. In the embodiment, the angle difference 2d is 30 degrees, the angle difference 3d is 60 degrees, the angle difference 4d is 90 degrees, and the angle difference 5d is 120 degrees.

The lines connecting the ends 2g to 5g of 2a to 5a of the sheets 2 to 5 and the ends 2h to 5h of the 2e to 5e are circles having a radius of 2c, 3c, 4c and 5c, respectively, so as not to prevent the rotation of each sheet. It shall be formed inside or around the circumference. This also ensures that 2g to 5g and 2h to 5h are always located on the circumference with radiuses 2c, 3c, 4c and 5c, respectively.

FIG. 5 shows a state in which the base end portion in the expanded state is viewed from the bottom surface.

At the time of assembly, the folded portions are folded in the order of 4f, 3f, 2f, and 1f in the order of sheets 1-5. Thus, as shown in FIG. 5, the portion 5e is sandwiched between 4f, 4e is 3f, 3e is 2f, and 2e is sandwiched between 1f.

When the sheet 5 is rotated with the sheet 1 fixed from the closed state of FIG. 2, when the difference between 5d and 4d is rotated by 30 degrees, 5e is 4e and the spread angle of the sheet 5 and the sheet 4 is Fixed at 30 degrees. When the rotation is further continued, 4e is 3e, and the spread angle of the sheets 4 and 3 is fixed at 30 degrees. Similarly, 3e corresponds to 2e, 2e corresponds to 1a, and the spread angle of the adjacent sheets is fixed at 30 degrees, so that the sheet 4, the sheet 3, and the sheet 2 rotate continuously, and finally the sheet 5 Is locked in a state where the maximum spread angle A reaches 120 degrees.
In the embodiment, the open / close mechanism and the slide open / close fan with a maximum opening angle of 120 degrees and 5 sheets at intervals of 30 degrees for each sheet are configured. However, the number of sheets may be any number of two or more. The interval may be arbitrarily set within the maximum expansion angle. Also, the maximum spread angle may be set to less than 120 degrees or more than 120 degrees.

It is the expansion state which looked at the fan of this invention from the front side. It is the closed state which looked at the fan of this invention from the front side. It is a figure which shows each sheet | seats 1-5 of a fan among this invention separately. It is detail drawing of the base end part rotation mechanism of each sheet | seat 1-5. It is the state which looked at the base end part rotation mechanism of the expansion state from the bottom face. It is a closed state perspective view of a fan among the present invention.

Claims (3)

A turn connecting means that interlocks the interlocked sheets by locking them at an arbitrary angle with a plurality of sheets connected by a member penetrating the base end part, and the folded part angle or cutting of the sheet connected to the base end part. An opening and closing mechanism characterized in that the maximum rotation angle is fixed and interlocked by the difference in the part angle. A rotating connecting means that locks all the sheets at an arbitrary angle with a plurality of sheets connected by a member penetrating the base end, and is the lowest depending on the difference between the folding of the uppermost sheet and the cutting part angle of the other sheets. An opening / closing mechanism characterized by fixing an opening angle. A slide opening / closing type fan with the mechanism according to claim 1.

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