JP2006143444A - Cable storage device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cable storage device for largely improving cable laying workability, by surely preventing idle rotation of a cable drum in a box body. <P>SOLUTION: This cable storage device has a drum 14 composed of a body part 20 for winding a cable and a collar part 22 on its both sides, and the box body 16 for rotatably storing the drum 14 and having an opening-closing cover 28 on an upper surface. The box body 16 is provided with a cable extracting hole 32 for inserting the cable extracted from the drum 14. A cutout part is arranged on the outer edge of the collar part 22 of the drum 14, and a fixing member 40 locked on the cutout part is arranged in the box body 16. A projection locked on the cutout part 26 is used for the opening-closing cover of the box body as the fixing member 40. For example, a projection formed by cutting and bending a part of the opening-closing cover 28 of the box body 16 or a projection using a knob 84 of a handle 82 reversibly connected to a shaft body 24 of the drum 14, is used. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cable storage device that stores a cable in a drum-wound state, and more particularly to a cable storage device that is suitable for drawing and wiring an optical drop cable into a subscriber's house such as a general house or a building.

  The concept of spreading the optical fiber communication network to the homes of subscribers such as ordinary houses and buildings is progressing concretely, and accordingly, development of various optical fiber cables necessary for the construction of such a communication network is continued. Among these, there is an optical fiber cable, so-called optical drop cable, for drawing and wiring from a wiring system cable installed in the aerial to a general subscriber's house (see, for example, Patent Document 1).

  An optical drop cable is an optical fiber cable used for optical wiring to subscriber systems such as ordinary houses and buildings. An optical fiber core and a steel wire or a parallel disposed in the optical fiber core It is provided with a tensile body made of FRP (glass fiber reinforced plastic) or the like, and a jacket made of a polyolefin-based thermoplastic resin that is collectively extrusion-coated on the outer periphery thereof.

  The optical drop cable has a problem in terms of flexibility and weight because the optical fiber core wire and the tensile strength wire are arranged in parallel. It is necessary to give sufficient consideration so that the transmission characteristics of the fiber do not deteriorate.

  On the other hand, a cable packaging box made of a box that stores an optical fiber cable around a drum in a state where the optical fiber cable is wound around the drum is known (for example, see Patent Document 2). This cable packaging box is related to the inventor's invention, and when used, the drum is rotated by pulling one end of the cable through the through hole of the box while the drum is housed in the box. Can be pulled out of the box sequentially.

Furthermore, in order to prevent the drum from spinning and disturbing the winding of the cable, a reinforcing side plate is arranged outside the drum rod, and the drum rod and the reinforcing side plate are appropriately brought into contact with each other when the drum rotates. The structure enables control of the frictional force.
JP 2004-69828 A JP 2004-217354 A

By the way, the above technique has the following problems to be solved.
The cable packaging box having the structure in which the reinforcing side plate is arranged outside the drum cage described above is sufficient to prevent the drum from rotating freely when the optical drop cable is accommodated only by the contact frictional force between the drum cage and the reinforcing side plate. There is a problem that cannot be prevented.

When the drum is idle when not in use, such as during transportation or storage, winding of the cable is disturbed in the box. If the cable is pulled out while the winding is disturbed, the cable may get tangled or damaged. Therefore, preliminary work such as correcting the cable winding disorder is performed before the drawing operation from the drum.
Further, when the cable pulled out after use is rewound onto the drum, an operation such as opening the packing box and reversing the drum by hand must be performed.

  The present invention has been made paying attention to the above points, and it is an object of the present invention to provide a cable storage device that reliably prevents idle rotation of a cable drum in a box and greatly improves cable laying workability. .

In each embodiment of the present invention, the above-described problems are solved by the following configurations.
<Configuration 1>
In a cable storage device comprising a drum composed of a body portion around which a cable is wound and flanges on both sides thereof, the drum being rotatably stored, and a box body having an open / close lid on the upper surface, the box body includes: A cable lead-out hole through which the cable pulled out from the drum is inserted is provided, a notch is provided at the outer edge of the flange portion of the drum, and a fixing member that is locked to the notch is provided in the box. A cable storage device.

  By locking the fixing member in the notch portion provided on the outer edge of the flange portion of the drum, it is possible to prevent the cable from being disturbed and prevent the cable from being entangled or damaged due to the cable being disturbed.

<Configuration 2>
The cable storage device according to Configuration 1, wherein the fixing member is provided with a protrusion that engages with the notch on the opening / closing lid of the box.

  When the opening / closing lid is closed, the protrusion is locked to the notch portion of the drum collar, so that the drum can be prevented from spinning freely and the cable can be prevented from being disturbed. When the opening / closing lid is opened, the protrusion is separated from the notch, so that the drum can be rotated and the cable can be drawn from the drum.

<Configuration 3>
The cable storage device according to Configuration 2, wherein the protrusion is formed by cutting and bending a part of the opening / closing lid of the box.

  Since the protrusion is formed on a part of the opening / closing lid, there is no waste of material, and the manufacturing cost can be reduced. In addition, when the projection is not required, the open / close lid can be flattened by releasing the cut end from the solid line and placing it in the original position.

<Configuration 4>
The cable storage device according to Configuration 1, wherein a knob of a handle that is reversibly connected to the shaft body of the drum is provided as the fixing member.

  When the knob of the handle is locked to the notch portion of the drum collar, it functions as a fixing member, preventing the drum from spinning around and preventing the cable from becoming distorted. When the handle is flipped, the extra cable drawn using the knob can be easily rewound onto the drum.

<Configuration 5>
5. The cable storage device according to any one of configurations 1 to 4, wherein the drum and the box are formed of cardboard members.

  By using a commercially available cardboard member as a material constituting the drum and the box, assembly and disassembly can be easily performed at low cost.

<Configuration 6>
6. The cable storage device according to any one of configurations 1 to 5, wherein the cable is an optical drop cable.

  When applied to optical drop cable storage and drawers that require careful attention to entanglement or damage due to winding disturbance, the drum is firmly pressed by the fixing member to prevent winding disturbance reliably. Since the preparatory work before the start of the drawing work can be largely omitted, the cable laying workability is remarkably improved.

<Configuration 7>
7. The cable storage device according to any one of configurations 1 to 6, wherein a window through which the inside of the box body can be seen is provided on the opening / closing lid of the box body.

  The cable winding state around the drum can be easily confirmed with the open / close lid closed.

  Hereinafter, embodiments of the present invention will be described in detail for each example.

  FIG. 1 to FIG. 15 are diagrams showing the cable storage device of the first embodiment, FIG. 1 is a plan view showing the cable storage device with the top surface of the box opened, and FIG. 2 is a side view of the cable storage device. 3 is a front view of the cable storage device.

As shown in FIGS. 1 to 3, the cable storage device 12 according to the first embodiment includes a drum 14 and a box 16 formed of a cardboard member.
As shown in FIGS. 4 and 5, the drum 14 includes, for example, a trunk portion 20 around which a wiring system optical fiber cable such as an optical drop cable and a wiring system cable 18 such as an electric wire are wound, and flanges 22 on both sides thereof. It consists of and. Cutout portions 26 are provided at four locations on the outer edge of the flange portion 22 of the drum 14. A cylindrical shaft body 24 shown in FIGS. 6 and 7 is fitted into the shaft center of the drum 14 to support the body portion 20.

  The box 16 is formed of a corrugated cardboard member into a hexahedron that is large enough to accommodate the drum 14. On the upper surface of the box body 16, an opening / closing lid 28 and upper surface flaps 30 are provided on both sides thereof. A cable lead-out hole 32 and a cable insertion hole 34 are provided on the front surface of the box 16 at positions adjacent to each other. The cable lead-out hole 32 is formed in a horizontally long window shape along the drum body portion 20, and the cable insertion hole 34 is formed in a circular shape with a size that allows one cable 18 to be inserted.

  A reinforcing side plate 36 formed of a corrugated cardboard member is inserted between the outer surfaces of both flange portions 22 of the drum 14 and the box body 16. The reinforcing side plate 36 has substantially the same size as the side surface of the box 16 and is formed in a quadrilateral flat plate shape having a shaft hole 38 at the center, as shown in FIGS. The shaft body 24 is fitted into the shaft hole 38 of the reinforcing side plate 36, and the drum 14 is rotatably supported. The reinforcing side plate 36 is disposed so as to be in contact with the outer surfaces of both flange portions 22 of the drum 14, and always applies a predetermined frictional force (braking force) to the rotation of the drum 14.

The opening / closing lid 28 of the box 16 is provided with a fixing member that is locked to the notch 26. A fixing member 40 shown in FIG. 1 is a protrusion formed by processing a part of the opening / closing lid 28 of the box 16.
In addition to the protrusions 40 shown in FIG. 1, the fixing member is not shown in the drawing, but is processed separately from the box 16 and mounted on the back surface of the opening / closing lid 28, or the box 16 Instead of being fixed to the opening / closing lid 28, it may be held by the notch 26 in a free state and pressed by the pressing force when the opening / closing lid 28 is closed.

A method of processing a part of the opening / closing lid 28 to form the protrusion 40 will be described with reference to FIGS.
First, as shown in FIG. 10, solid lines 42 and 44 and broken lines 46, 48 and 50 are drawn and displayed on the back surface of the opening / closing lid 28. Two solid lines 42 and 44 indicate cutting lines, and three broken lines 46, 48, and 50 indicate folding lines.
Next, it cut | disconnects along the continuous line 42 and the continuous line 44, and valley-folds along the broken line 46 as shown in FIG.
Next, as shown in FIG. 12, the mountain is folded along a broken line 48 and the valley is folded along a broken line 50.
Finally, as shown in FIG. 13, the cut end 52 is fixed by inserting the corner 54 of the cut end 52 into the cut line of the solid line 44.
By assembling in this way, as shown in FIG. 14, the portion along the broken line 48 rises at the substantially central portion of the back surface of the opening / closing lid 28, and the pointed portion of the protrusion 40 is formed.

  In addition, you may make it provide the fixing | fixed part of the cutting end 52 not only on one side like illustration but on both sides of the cutting end 52 as needed. In addition, the protrusion 40 and the cutout portion 26 that receives the protrusion have a triangular cross section. However, the present invention is not limited to this, and the cross section may be a square or other shapes.

  When the cable storage device 12 of the first embodiment is used, the cable 18 drawn from the drum 14 in the box 16 is inserted through the cable drawing hole 32 and sequentially drawn to the outside. After pulling out the required length of cable, it is cut. The end portion of the cable remaining in the storage device 12 is inserted and pressed into the cable insertion hole 34 provided in the box 16 as shown in FIG.

  When the open / close lid 28 is closed, the cable storage device 12 has the protrusion 40 locked to the notch portion 26 of the flange portion 22 of the drum 14 so as to prevent the drum 14 from spinning freely and to ensure that the cable is not disturbed. To prevent. When the opening / closing lid 28 is opened, the protrusion 40 is separated from the notch 26, so that the drum 14 can rotate and the cable can be drawn from the drum 14.

  In this embodiment, since the projection 40 is formed by a part of the opening / closing lid 28, there is no waste of material, and the manufacturing cost can be reduced. When the projection 40 is not required, the cutting end 52 can be released from the cut line of the solid line 44 and placed in the original position so that the open / close lid can be made flat.

  15 to 29 are diagrams showing the cable storage device of the second embodiment. FIG. 15 is a plan view showing the cable storage device with the upper surface of the box opened. FIG. 16 is a side view of the cable storage device. 17 is a front view of the cable storage device.

As shown in FIGS. 15 to 17, the cable storage device 56 according to the second embodiment includes a drum 58 and a box 60 formed of a cardboard member.
As shown in FIGS. 18 and 19, the drum 58 includes a body portion 64 around which the cable 62 is wound and flange portions 66 on both sides thereof. A semicircular cutout 70 is provided at one location on the outer edge of the flange 66 of the drum 58. A cylindrical shaft body 68 shown in FIGS. 20 and 21 is fitted into the shaft center of the drum 58 to support the body 64.

  The box 60 is formed of a corrugated cardboard member into a hexahedron that is large enough to accommodate the drum 58. An opening / closing lid 72 and upper surface flaps 74 are provided on both sides of the upper surface of the box body 60. An elongated window 80 through which the inside of the box 60 can be seen through is provided at the center of the opening / closing lid 72. A cable lead-out hole 76 and a cable insertion hole 78 are provided on the front surface of the box body 60 at close positions.

  A handle 82 connected to the shaft body 68 of the drum 58 is provided on the side surface of the box body 60. One end of the handle 82 is reversibly connected to the shaft body 68 of the drum 58. A knob 84 that protrudes outward is provided at the other end of the handle 82.

The knob 84 is a handle of the handle 82 for rotating the drum 58 when facing the outer surface of the box body 60, and is used when, for example, rewinding the cable end portion that has been pulled out to the drum 58.
When the handle 82 is reversed and the knob 84 is inserted into the inside of the box 60 and is locked to the notch 70, the knob 82 has a function of preventing the drum 58 from spinning around, that is, used as a fixing member. The The knob 84 will be described in detail later.

  A reinforcing side plate 86 formed of a corrugated cardboard member is inserted between the outer surfaces of both flange portions 66 of the drum 58 and the box body 60. The reinforcing side plate 86 is formed in a substantially quadrangular flat plate shape having substantially the same size as the side surface of the box body 60.

  As shown in FIGS. 22 and 23, the reinforcing side plate 86 is provided with a shaft hole 88 in the center and a through hole 90 on the upper side. A shaft body 68 is fitted into the shaft hole 88 of the reinforcing side plate 86, and the drum 58 is rotatably supported. The through hole 90 is a hole through which the knob 84 is inserted. The reinforcing side plate 86 is disposed so as to be in contact with the outer surfaces of the both flange portions 66 of the drum, and always applies a predetermined frictional force (braking force) to the rotation of the drum 58.

FIGS. 24 to 26 are explanatory views of the cable storage device according to the second embodiment when used.
As shown in these drawings, the knob 84 of the handle 82 is placed toward the outer surface of the box 60 when the cable storage device 56 is used. At this time, the drum 58 is freely rotatable, and the cable 62 can be pulled out to an arbitrary length. After the required length of cable is drawn, the cable is cut. The distal end portion of the cable that has been cut and remains on the drum 58 side is inserted and held in a cable insertion hole 78 provided in the box 60.

27 to 29 are explanatory diagrams of the cable storage device 56 during transportation and storage.
As shown in these drawings, when the cable storage device 56 is transported and stored, the handle 82 is inverted with the connecting portion with the shaft body 68 as a fulcrum, and the knob 84 is passed through the through hole 90 of the reinforcing side plate 86 and the drum flange 66. Is inserted into the notch 70. At this time, the rotation of the drum 58 is prevented, and the idle rotation of the drum 58 is prevented.

  The materials constituting the box bodies 16 and 60, the drums 14 and 58, and the reinforcing side plates 36 and 86 are not limited to corrugated board members, and any material such as plastic or metal may be used as a constituent material in consideration of durability. It can also be used in part or in whole.

  When an optical drop cable is applied as the cables 18 and 62, since the rotation of the drums 14 and 58 is firmly held by the fixing member 40, the optical drop cable is reliably prevented from being disturbed. Since entanglement due to winding disturbance and damage to the optical drop cable are prevented, the cable laying workability is remarkably improved.

  As described above, according to the cable storage device of the present invention, there is no need to lay out the cable by taking out the drum from the box body and preparing a stand for feeding, etc., and only the necessary length can be taken out and used. Advantages such as being able to quickly rewind and store and reuse cables that have been taken out excessively, and reliably preventing the cables wound around the drum from being scattered during transportation can be obtained.

The top view which shows the cable storage apparatus of Example 1 by opening the box upper surface. The side view of the cable storage apparatus. The front view of the cable storage apparatus. The front view which shows the drum which comprises the cable storage apparatus. The same side view. The front view which shows the shaft body which comprises the cable storage apparatus. The same side view. The front view which shows the side plate for reinforcement which comprises the cable storage apparatus. The same side view. Explanatory drawing which shows the 1st process which forms protrusion on a box body upper surface. Explanatory drawing which shows the 2nd process of forming protrusion on a box upper surface. Explanatory drawing which shows the 3rd process which forms protrusion on a box upper surface. Explanatory drawing which shows the 4th process of forming a processus | protrusion on a box upper surface. Explanatory drawing which shows the 5th process of forming a processus | protrusion on a box upper surface. The top view which shows the cable storage apparatus of Example 2 by opening the box upper surface. The side view of the cable storage apparatus. The front view of the cable storage apparatus. The front view which shows the drum which comprises the cable storage apparatus. The same side view. The front view which shows the shaft body which comprises the cable storage apparatus. The same side view. The front view which shows the side plate for reinforcement which comprises the cable storage apparatus. The same side view. Explanatory drawing which shows the use condition of the cable storage apparatus from a plane. Explanatory drawing which shows the use condition of the cable storage apparatus from the front. Explanatory drawing which shows the use condition of the cable storage apparatus from a side surface. Explanatory drawing which shows the drum fixing condition of the cable storage apparatus from a plane. Explanatory drawing which shows the drum fixing condition of the cable storage apparatus from the front. Explanatory drawing which shows the drum fixing condition of the cable storage apparatus from a side surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 12 Cable storage apparatus 14 Drum 16 Box 18 Optical drop cable 20 trunk | drum 22 collar 24 shaft body 26 notch part 28 opening-and-closing lid 30 upper surface flap 32 cable extraction hole 34 cable insertion hole 36 reinforcement side plate 38 shaft hole 40 fixing member (Projection)

Claims (7)

A drum consisting of a body around which the cable is wound and a flange on both sides thereof;
In a cable storage device that rotatably stores the drum and includes a box having an open / close lid on the upper surface,
The box is provided with a cable drawing hole for inserting the cable drawn from the drum,
A notch is provided on the outer edge of the flange of the drum,
A cable housing apparatus, wherein a fixing member that is locked to the notch is disposed in the box. The cable storage device according to claim 1,
A cable housing device, wherein the fixing member is provided with a protrusion that is engaged with the notch on an opening / closing lid of a box. The cable storage device according to claim 2,
The cable housing apparatus according to claim 1, wherein the protrusion is formed by cutting and bending a part of the opening / closing lid of the box. The cable storage device according to claim 1,
A cable housing apparatus comprising a handle knob reversibly coupled to the shaft body of the drum as the fixing member. The cable storage device according to any one of claims 1 to 4,
The cable storage device, wherein the drum and the box are formed of corrugated cardboard members. The cable storage device according to any one of claims 1 to 5,
The cable storage device, wherein the cable is an optical drop cable. In the cable storage apparatus in any one of Claim 1 thru | or 6,
A cable housing apparatus, wherein a window through which the inside of the box can be seen is provided in the opening / closing lid of the box.

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