JP2001335035A - Cable drum carrying pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a pallet for carrying a drum wound around with an optical fiber cable lightweight and durable, and to reduce the cost of the pallet and airfreight for transporting the pallet. SOLUTION: A frame 2 of the pallet 1 is made up by fixing light alloy square pipes together, a pair of flange support beams 8 and 9 are provided, with a space being left in between them, at the middle of an outer frame 4, and stoppers 3 are arranged so as to be moved up and down, providing stopper beams 10 at both sides of the flange support beams. As the drum D is mounted with its flanges F placed on the paired flange support beams 8 and 9, parts close to the lower end of the flanges F come to a level below the support surfaces of the flange support beams, and faces on both sides of the drum are placed within the outer frame 4, and thereby the drum D is fixed firm with lacing belts L and prevented from rolling or lateral shift. Since the pallet 1 is lightweight, airfreights required for transporting the drum and returning the pallet become inexpensive, and because of its durability, the pallet can be used repetitiously, reducing its cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet used for transporting a drum on which an optical fiber cable or an electric wire is wound on an aircraft or a vehicle.

[0002]

2. Description of the Related Art A conventional pallet of this type is made of a combination of thick woods, and a drum is mounted on the pallet and fixed.

[0003]

The above-mentioned wooden pallets are made of solid wood and have a large weight. Therefore, not only when transporting a drum around which a cable is wound, but also when returning a pallet with an empty load. Are also expensive, especially when transporting by air. For this reason, when exporting optical fiber cables and electric wires overseas, the pallets have been thrown away after being transported, and have been disposed of by incineration. When used in this manner, wood resources are wasted and carbon dioxide is emitted by incineration, and processing costs are also involved. Therefore, even if wooden pallets are inexpensive, they are economically disadvantageous in the long term. is there. The present invention improves such a pallet, is lightweight and durable, has a low air fare when transporting cables and returning it with empty cargo, and is economically advantageous because it can be used repeatedly. Another object is to obtain a pallet that does not cause deterioration of the air environment.

[0004]

The means for solving the above problems are as described in each claim.
Means comprises a frame formed by adhering a light-weight beam material, and two pairs of stoppers attached to the frame. The frame has a rectangular outer frame composed of a vertical beam and a horizontal beam, A pair of flange receiving beams fixed to the middle part of the frame in parallel with the horizontal beam and receiving the flange of the cable drum, and two pairs of stopper beams fixed at both ends to the flange receiving beam and the horizontal beam in parallel with the vertical beam. A lower end of the outer frame, and a pedestal made of a beam material fixed to the middle of the vertical beam, wherein the stopper has a pivotal portion near the flange receiving beam and a plurality of locking portions at the other end, and a stopper. A stopper base fixed on the beam for use, a stopper plate having one end pivotally attached to the pivoted portion of the stopper base, and a stay pivotally attached to the other end of the stopper plate and latched to a locking portion of the stopper base. Characterized in that it comprises a.

According to this means, a pallet that is lightweight and can be used repeatedly can be obtained. By supporting the flange of the drum with two flange receiving beams, the drum can be prevented from rolling, and the lower end of the flange can be received by the inner surface of the vertical beam to prevent lateral displacement. The contact can enhance the effect of preventing the drum from rolling.

According to a second aspect of the present invention, in the first aspect, the receiving surface of the flange receiving beam is formed as an inclined receiving surface in which a portion near the center of the frame is low. According to this means, the use of the inclined receiving surface reduces the surface pressure acting on the receiving surface from the flange, thereby improving the durability. A gap is provided between the lashing belts so that the lashing belt can pass therethrough. According to this means, the lashing belt can be easily wound around.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a pallet, 2
Reference numeral 3 denotes a stopper provided on the frame 2, and a drum D is placed on the pallet 1 and held as shown in FIG. The drum D has a body portion around which a cable C is wound and a flange F, and is attached to the pallet 1 with a lashing belt L passing through a center hole.

The frame 2 is made by fixing a square pipe made of a light alloy such as an aluminum alloy. If the opening at the end of the square pipe abuts against the outer surface of another square pipe, the frame 2 is fixed. The opening is closed and reinforced by the outer surface, but the opening that is not fixed to the other square pipe is closed by fixing a lid plate made of the same material to maintain rigidity and prevent foreign matter from entering.

As the lightweight material used for the frame 2, in addition to the above-mentioned light alloy, a lightweight and high-strength material such as glass fiber or reinforced plastic in which other fibers are embedded is used.

As shown in FIGS. 3 and 4, the outer frame 4 constituting the outer shell of the frame 2 is formed by fixing a vertical beam 5 and a horizontal beam 6 in a rectangular shape, and a lower intermediate horizontal beam 7 is fixed at the center. Have been. Two flange receiving beams 8 and 9 are fixed on both sides of the intermediate horizontal beam 7 with a space therebetween, and on the upper surface thereof, inclined receiving surfaces 8a and 9a are formed, which are inclined such that the intermediate horizontal beam 7 side becomes lower. I have. Between the flange receiving beams 8 and 9 and the horizontal beams 6 and 6, a stopper beam 10 which is parallel to the vertical beams 5 and 5 and has a low height has a gap 11 interposed between the vertical beams 5 and 5. Let it be fixed,
The stopper 3 is attached to this.

Further, pedestals 12 and 13 are fixed to the lower surface of the outer frame 4 between the four corners and the vertical beam 5. These pedestals 12 and 13 are also formed by cutting a square pipe, and cover plate materials 12a and 13a are fixed to the opening portions formed by cutting, and a forklift insertion space between the pedestals 12 and 13 is provided. 14a are formed, and a fork insertion space 14b is formed between the legs 12, 12. The dimensions of the outer frame 4 are
For example, the height is 1530 mm and the width is 870 mm.

The stopper 3 includes a stopper base 15, a stopper plate 16 and a stay 17, and is preferably made of steel. The stopper base 15 is fixed to the stopper beam 10 by screws 5a shown in FIG. . The stopper base 15 has a configuration shown in FIG.
Is substantially equal to the sum of the widths of the stopper beam 10 and the gap 11. The stopper base 15 is formed in a shallow U-shape by a flat portion 15a and a reinforcing rib 15b, a shaft hole 18 is formed near the right end of the rib 15b, and three locking claws 19 near the left end of the flat portion 15a. Has been cut and raised.

The center of the flat portion 15a is deviated to one side, and the center of the flat portion 15a coincides with the center of the stopper beam 10.
Each of the small holes 20 is formed, and the screw 5 a is screwed into the stopper beam 10 through the small hole 20 to fix the stopper base 15 to the stopper beam 10.
The position of the small hole 20 with respect to the center line of the flat portion 15a depends on the direction of the stopper beam 10 to be attached, and two of the four stopper bases 15 to be used must be provided on the side opposite to the illustrated position. 21 is a lightweight hole.

FIG. 6 shows a stopper plate 16, which is also formed in a shallow U-shape by a flat portion 16a and a reinforcing rib 16b, and a shaft hole 22 having the same size as the shaft hole 18 and a small-diameter hole are formed on the rib 16b. A shaft hole 23 is drilled, and a lightweight hole 24 is drilled in the plane portion 16a. And the plane part 1 on the shaft hole 23 side
A cushion material 25 is adhered on 6a.

FIG. 7 shows a stay 17, which is also a flat part 1.
7a and a reinforcing rib 17b are formed in a shallow U-shape. A shaft hole 26 having the same size as the small-diameter shaft hole 23 is formed at the right end of the rib 17b, and an inclined portion 27 is formed at the left end. A lightweight hole 28 is formed in the flat portion 17a. The width of the inclined portion 27 is wider than the width of a hole formed by cutting and raising the locking claw 19 in the stopper base 15.

FIG. 8 shows a half of the pivotal connection between the stopper base 15 and the stopper plate 16.
The spacer pipe 29 is inserted between the ribs 1b and 16b.
A spindle 30 is inserted through the shaft holes 18 and 22 of 5b and 16b and the spacer pipe 29, and both ends of the spindle 30 are
And the surface of the fixing portion 31 is smoothed by a grinder finish. The same pivoting structure as that shown in FIG. 8 is employed for a pivoting portion between the small diameter shaft hole 23 of the stopper plate 16 and the shaft hole 26 of the stay 17.

In FIGS. 3 and 4, the angle members fixed to the four corners of the outer frame 4 are guides 33 for stacking the empty pallets 1, and the guides 33 have an upwardly extending guide surface. Pallet 1
After stacking, misalignment is prevented, so that a large number of pallets can be transported together.

When placing the drum D on the pallet 1,
The lower end of the outer surface of the flange F of the drum D is
And the outer peripheral surface of the flange F as shown in FIG. 4 and the inclined receiving surfaces 8a, 8a of the flange receiving beams 8, 9 as shown in FIG.
When the drum D is placed on the drum 9a, the drum D is prevented from rolling and rolling, and becomes stable. Then, when the stopper plate 16 is rotated about the support shaft 30 to bring the cushion material 25 into contact with the outer peripheral surface of the flange F and the lower end of the stay 17 is locked to one of the locking claws 19, The anti-rolling action is enhanced.

Next, as shown in FIG. 2, the lashing belt L is passed through the center hole of the drum D, and both ends of the belt are hung on the outside of one of the horizontal beams 6, respectively. And then joined. The belt is similarly hung on the other lateral beam 6 side, so that the lateral displacement of the belt and the rolling of the drum D are prevented, and the drum D can be securely attached.

In the above-mentioned embodiment, if thick and high-rigidity beams are used as the flange receiving beams 8 and 9, beams of a square pipe or a round pipe having no inclined receiving surfaces 8a and 9a on the upper surface can be used. Can be used.
Instead of the structure in which the gap 11 is provided between the stopper beam 10 and the vertical beam 5, a beam or a protrusion for bringing the members 10 and 5 into close contact to prevent the lashing belt from shifting is provided. A structure provided with an interval from the beam 10 may be employed.

In the above embodiment, a square pipe is used as a beam material and welding is used as a fixing means. In addition to this, various beam materials such as a mountain shape, a groove shape, an I shape, and an H shape are used. Shaped steel and round pipes can be used, and various means such as riveting, screwing, and bonding can be used as the fixing means.

[0022]

According to the first aspect of the present invention, since the frame is made of a lightweight beam material, a pallet that is lightweight and can be used repeatedly can be obtained, and the flanges of the drum have two flange receivers spaced apart. By supporting with a beam, it is possible to prevent rolling of the drum and to prevent lateral displacement by receiving the lower end of the flange with the inner surface of the vertical beam, and by abutting the stopper plate on the flange,
This has the effect of enhancing the anti-rolling action of the drum.

According to the second aspect of the present invention, there is an effect that the surface pressure acting on the flange by the inclined receiving surface is reduced, and the durability is improved.

According to the third aspect of the present invention, the lashing belt may be hung on the horizontal beam so as to pass through the gap between the vertical beam and the stopper beam. .

[Brief description of the drawings]

FIG. 1 is a perspective view of a pallet embodying the present invention.

FIG. 2 is a perspective view showing a state in which a drum is held.

FIG. 3 is a plan view of a pallet.

FIG. 4 is a longitudinal sectional view of a pallet.

5A is a plan view showing a stopper base, FIG.
(B) is a side view

6A and 6B show a stopper plate, wherein FIG. 6A is a plan view and FIG.

7 (a) is a plan view and FIG. 7 (b) is a side view showing the stay.

FIG. 8 is a cross-sectional view of a pivot portion of the stopper plate.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Pallet 2 Frame 3 Stopper 2 Outer frame 5 Vertical beam 6 Horizontal beam 8, 9 Flange receiving beam 10 Beam for stopper D Drum F Flange L Lashing belt

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Kazuo Matsubayashi, Inventor Kazuo Matsubayashi 3F, 4-3-16 Nihonbashi, Chuo-ku, Tokyo Nayatsuya Taiyo Building 3F Nippon Trading Co., Ltd. (72) Inventor Kazumi Yate Ichihara, Chiba 5-4 Yawata Kaigan-dori, Akahoshi Corporation (72) Inventor Masayoshi Hasuike 5-4, Yawata Kaigan-dori, Ichihara-shi, Chiba F-term (reference) 3E063 AA13 AA21 BA03 BA05 CA04 EE01 FF07

Claims (3)

[Claims] 1. A frame formed by fixing a beam material made of a lightweight material, and a pair of stoppers attached to the frame. The frame includes a rectangular outer frame including a vertical beam and a horizontal beam, A pair of flange receiving beams fixed in the middle of the outer frame in parallel with the horizontal beam and receiving the flange of the cable drum, and two pairs of stopper beams fixed at both ends to the flange receiving beam and the horizontal beam parallel to the vertical beam And a pedestal of a beam material fixed between the four corners of the lower surface of the outer frame and the middle of the vertical beam, wherein the stopper has a pivotal portion near the flange receiving beam and a plurality of locking portions on the other end side, A stopper base fixed on the stopper beam, a stopper plate having one end pivotally attached to the pivotal portion of the stopper base, and a step pivotally attached to the other end of the stopper plate and latching on a locking portion of the stopper base. And a transfer pallet for a cable drum. 2. The transport pallet for a cable drum according to claim 1, wherein the receiving surface of the flange receiving beam has a low inclined receiving surface near the center of the frame. 3. The transport pallet for a cable drum according to claim 1, wherein a gap through which a lashing belt can pass is provided between the outer frame and the stopper beam.