JPS5895078A - Winding reel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a take-up reel comprising an elongated hollow core with flanges at both ends.

Such a take-up reel can be made of paper, electrical wiring, etc.
Widely used for storing and transporting IJ tubes, etc.

Some of these take-up reels have a core made of wood, metal, or both, and a circular flange made of wood, such as chipboard.These reels are relatively expensive to manufacture, heavy, and difficult to handle. There are drawbacks.

In addition, we can make flanges using pole paper to reduce manufacturing costs.
There are also reels that have reduced weight, but these have the disadvantage that the flanges are easily damaged and bend easily.

The take-up i7-rule of the present invention consists of a core with flanges at both ends and an elongated hollow inside, and the seven langes at both ends are made of double-sided balls, and each flange shape has four straight sides and an outer core. It is an octagon with four sides made of curved lines that bulge out and arranged alternately, two opposite sides of the four straight sides are parallel, and the waveform of the several balls on both sides making up the flange is as follows. It is characterized in that the angles formed with each of the four straight sides are 45°.

The take-up reel according to the present invention uses a relatively inexpensive and lightweight double-sided ball as the flange material, and has a special octagonal shape that defines the waveform direction and direction of the corrugated board, so the compressive force in the direction perpendicular to the core is damage can be minimized. When the take-up reel is placed horizontally (with the flange face perpendicular), one of the four straight sides will be the bottom side, so when a vertical force is applied to the outer circumference of the Z flange, the corrugated direction of the cardboard will be It always makes an angle of 45° with the direction of this normal force, so that damage to the flange due to this force can be minimized.

Preferably, each of the seven flanges is attached on one or both sides to strengthen the flanges against bending.

Hereinafter, the present invention will be explained in detail based on the drawings.

In the conventional example shown in FIGS. 1 and 2, the take-up reel has an inner elongated hollow metal core 1 and an outer core 6 made of a chipboard tube with an elongated hollow interior. Core 2 and two chipboard circles 7 at each end
It is made up of lunges 3,3.

Although such conventional take-up reels are strong, they have the drawbacks of being expensive and heavy.

3, 4 and 5 show an embodiment according to the invention, in which the take-up reel has an inner core 10 made of an elongated hollow chipboard tube, which is concentric with the inner core 10; It consists of an outer core 20 made of an elongated hollow chipboard tube and two double-sided corrugated flanges 30, 30 at each end. Each of the 7 lunges 30.30 has four sides 31 made of straight lines and four sides 32 made of curved lines bulging outward.
It has an 8-feed shape with alternating arrangement of . The two opposite sides of the four straight sides 31 are parallel, and the sides are arranged so that the shape formed by extending these four straight sides 31 until they intersect is a square.

As shown in FIG. 5, the angle formed between the direction of the corrugation 33 of each flange 300 and the straight line side 31 of the seven flange 30 is 45°, and when the take-up reel is placed as shown in the figure, it is always a straight line. Since one of the four sides consisting of is the lower side, the flange strength can be increased when a vertical force (force acting from top to bottom in FIG. 5) is applied to the flange 30 from above.

In the embodiment of the invention shown in FIG.
, preferably circular notches, are provided on one or both sides of each flange 30, 30 to strengthen the flange against bending.

[Brief explanation of the drawing]

1 and 2 are a side view and a sectional view, respectively, of an embodiment of a conventional take-up reel, and FIGS. 3, 4, and 4 are a side view and a sectional view, respectively, of an embodiment of a take-up reel of the present invention. 5 is a side view showing the inside of the 7-lunge of the take-up reel shown in FIGS. 3 and 4, and FIG. 6 is a side view showing another embodiment of the take-up reel of the present invention. be.

Claims (1)

[Scope of Claims] 1) In a take-up reel consisting of a core with flanges at both ends and an elongated hollow interior, the flanges at both ends are made of double-sided corrugated cardboard, and the flange shape at both ends has four straight sides. It is an octagon with four sides made of outwardly bulging curves arranged alternately, and two opposite sides of the four straight sides are parallel, and the corrugated cardboard of the flanges at both ends are like the above-mentioned. A take-up reel characterized in that the angles formed with each of the four straight sides are 45 degrees. 2) A take-up reel as claimed in claim 1, characterized in that said flanges each have on one or both sides a continuous notch extending around said core.