JPH0430106A - Optical fiber cable carrying cart - Google Patents

Abstract

PURPOSE:To obtain an optical fiber cable carrying cart which is easy to move and to/from which a cable storage reel part can be attached and detached by providing notched groove parts at both the ends of a shaft, and fixing a supporting metallic fixture with a recessed part to cart, and incorporating the reel and the cart into one body by fitting freely attachably and detachably the notched groove part to the recessed part. CONSTITUTION:Pins 5 are fitted at both the ends of the shaft so that the shaft 5 can not be drawn out of the reel R. A cable 6 is stored by being wound regularly around the drum 2 of the reel R. the notched groove parts 12 about one third as long as the circumference are formed at the shaft 4, and the reel R is easily fixed by fitting the shaft 4 of the reel to the recessed part 8A of the supporting metallic fixture 8. The cart T is tilted until a stand 9 is brought into contact with the ground 40, and the reel is rolled to a position where the shaft 4 can be fitted to the recessed supporting metallic fixture 8. Since the supporting metallic fixture 8 has an angle to make an oblique opening part 8B almost parallel with the ground when the cart T is tilted, fitting can be easily executed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an optical fiber cable transport vehicle for simply laying optical fiber cables by hand or the like.

Conventional technology A cable feeding device S used when laying an optical fiber cable conventionally includes a reel 21 storing a cable and a stand 2 supporting it, as shown in FIG.
2 is generally integrated, and a brake 21 for controlling rotation is added.

The cable is fed out by rotating the reel 21 around the shaft 23 of the reel 21.

As shown in Figure 14, when the cable between manholes 3/33 is out of order, the navel feeder will
0 to the adjacent manhole 3/, one end 30 of the cable and the terminal 32 of the cable in the opposite direction can be taken out without having to let out the entire cable, allowing it to be laid in the manhole 33 in the other direction. It is. The problem is that in the cable reel S, the reel 21 and the stand are integrated, so after the cable is laid as shown in Figure 14, it is impossible to take out the remaining cable remaining on the reel 21. Device S has no choice but to be left at the installation site.

As a result, it becomes a traffic nuisance, causing inconvenience to passersby, and there are major restrictions on the conditions under which construction can be carried out. Furthermore, if you try to avoid this, you will have to let out all the cables once, and you will have to temporarily install the let out cables inside a manhole or on a utility pole. This increases extra work and increases construction time.

Normally, cables would be laid inside the conduit as shown in Figure 15, but if the conduit is collapsed and it is impossible to lay the cable inside the conduit, it is necessary to install the cable above ground as shown in Figure 14. , because the installation is done aerially, buildings are densely packed in urban areas, etc.
On roads with many curves and turns, it is necessary to carry out laying while moving with the reel feeding device S. As shown in FIG. 16, the cable laying method in this case requires two people to carry the cable payout device S, which puts a burden on the people because it requires hands and the reel is heavy.

Another method of laying the cable is to turn the reel feeding device S upside down and hold the stand 22 in your hand so that the stand 22 part is on top, as shown in Fig. 17, and roll the outer frame of the reel. In this case, there is a risk of damaging or bending the outer frame 2j of the IJ-ru.

In addition, problems such as difficulty in rolling and installation on rough roads (earth, sand roads) arise. In addition, the demand for cable cores is increasing, and as a result, the outer diameter of cables tends to become thicker and the number of turns increases. Therefore, if such a large-diameter couple is accommodated in the reel 2, the weight of the cable laying device will be even heavier, and it will require more manpower and time when holding the reel feeding device S to lay the cable. It takes.

SUMMARY OF THE INVENTION An object of the present invention is to provide an optical fiber cable transport vehicle that is easily movable and has a removable cable storage reel to solve the above-mentioned problems.

Structure of the Invention The present invention relates to a Hikari 7 Eye Bannable transport vehicle for laying an optical fiber cable, which is composed of a reel for storing a couple and a cart for supporting the reel and having wheels that can be easily moved by pushing by hand or the like. The reel consists of a body part in which the cable can be wound and stored, and two disc-shaped outer frames with a hole in the center through which the mandrel can pass, and can freely rotate around the mandrel inserted into the center hole. , a notch groove is provided on both sides of the mandrel, a supporting hardware having a recess is fixed to the cart, and the reel and the cart are integrated so that the notch groove can be removably fitted into the recess. At the same time, one side of the opening of the concave support metal part of the trolley into which the reel shaft is fitted is opened diagonally, and the trolley is tilted so that the surface is equal to or equivalent to a horizontal surface. When the reel is placed on the ground, the height of the shaft of the reel matches the height of the slope of the support metal, so that the reel can be easily inserted into the recess of the support metal by rolling the reel. The body has a tapered shape, and at least the thinner outer frame of the body is configured to be removable.

Embodiment FIG. 1 is a perspective view of a reel of an optical fiber cable carrier (hereinafter simply referred to as a carrier) according to the present invention, and FIG. 2 is a perspective view of a cart of the carrier.

The configuration of the transport vehicle of the present invention will be explained.

In FIG. 1, 1 is a disk-shaped outer frame, and 2 is the body of the reel, which has a tapered shape and becomes smaller in diameter from left to right as shown in the figure.

3 indicates a screw for fixing the outer frame to the body of the reel R.

DA is the tubular mandrel of the reel R, and pins J are fitted at both ends of the mandrel to prevent the mandrel from coming off the reel R.

The cable 6 is housed in the body 2 of the reel R by winding it in an aligned manner.

In the cart of the present invention shown in FIG. 2, 7 has a handle portion 7A at the top.
This is an inverted U-shaped main frame constituting the frame 7, and a supporting metal fitting r having a concave shape facing forward is attached to the front side of the central part of the frame 7 by welding means.

1 is a stand, and IO is a wheel provided on a support leg 11 of a lower horizontal frame 7-2 of an L-shaped leg frame 7-/.

Although the reel R (Fig. 1) and the trolley T (Fig. 2) are separated in this way, when actually laying the cable, the third
As shown in the figure, they are connected and used with the mandrel ≠ supported by the supporting hardware t of the trolley T.

FIG. 4 shows an enlarged view of the mandrel DA supported by the support metal r, where (a) is a perspective view and (b) is a partially enlarged perspective view of the support metal ♂. In the case of supporting, as shown in the enlarged view of FIG. 4, a cutout groove 72 is provided in the mandrel of about 1/3 of the circumference, and the mandrel of the reel R is fitted into the recess IAK of the support hardware r of the trolley T. It can be easily fixed by inserting it.

As shown in FIG. 5, the fixing method is to tilt the cart T until the stander contacts the ground surface O, and then roll the reel R to a position where the mandrel can fit into the concave support metal JK of the cart. The support hardware t can be opened at a diagonal opening F by tilting the trolley T.
Since B has an angle so that it is almost parallel to the ground, the structure allows for easy fitting as shown in FIG. 6.

FIG. 7 shows another embodiment of the support hardware for a transport vehicle according to the present invention, and FIG.
Figure (B) is an enlarged perspective view of the support hardware, Figure (C) is a front view,
shows.

Notch groove of about 1/2 circumference on the shaft of reel R/6
is provided, and is designed to fit into the left side or right side and lower part of the opening of the support metal fitting rl, so that the mandrel ≠ does not come off from the opening of the support metal piece r compared to the fitting method shown in Fig. 4. It has a leprosy structure.

A cutout groove portion of about 1/3 circumference on the shaft of the reel R≠ is designed to fit into the ridge-like portion /7 of the support hardware r2, which is another embodiment of the present invention, in which the lower side of the opening is configured in a ridge shape. It has become.

Since the lower side of the support hardware 12 is a mountain-like part /7,
The stability of the mandrel within the supporting hardware is higher than when the lower side is horizontal, and there is an advantage that the reel R can be prevented from wobbling or accidentally coming off during rotation during laying.

In the embodiment described above, it is not necessary to lift the reel R each time to fix the reel R and the cart T, and even when the table is wound around the reel R, the work can be easily done by one person. Once fitted, the reel R rotates around the support hardware 1r/ by holding the handle 7A of the trolley T and pulling the trolley in the direction in which the person is walking, as shown in FIG.
is laid down. At this time, the pin j is inserted into the mandrel≠ to prevent the mandrel≠ from coming off from R due to vibration or the like.

FIG. 11 shows a fixing device for a transport vehicle according to the present invention.

A groove A that communicates with the top and bottom is provided in the case of the stand.
Horizontal grooves B1 and C are connected in the same direction at the upper and lower parts of the groove A, the support leg is housed in the case, and a protrusion P is provided on the upper part of the support leg. Horizontal groove B
When the support leg is located at
When located in the horizontal groove C, the stand and the transport vehicle are fixed on the ground.

FIG. 9 shows another method of laying cables using the carrier of the present invention, in which cables are laid while the carrier is fixed and only the cable is pulled out. In this case, it is necessary to fix the transport vehicle itself, and one possible method for this is as follows.

First, as shown in FIG. 10(a), the supporting hardware 1 of the trolley T is
From the state in which the mandrel is fitted to /, the trolley T is further lowered until the frame bending part 7-3 at the rear of the wheel touches the ground 4c0, and for example, the stander is made double-legged as shown in Fig. 11. In other words, by providing a support leg l, K so that the leg can be easily lengthened will result in Figure 10 (b).
) By returning the cart to its normal inclination as shown in the figure, the supporting feet of the stander come into contact with the ground, and the carrier can be fixed to the ground. However, the cable t can be laid by one person pulling it. When the cable installation is completed and the remaining cable is removed, the cable and reel R described in Fig. 5 are used.
Remove the reel R from the trolley T by doing the exact opposite of the connection. Remove the pin that secures the outer frame from the mandrel of reel R to prevent it from falling out, and remove the mandrel of reel R from the body of reel R.

Then, as shown in Figure 12, lay down the J-le R so that the thicker part of the tapered reel body part 2 is in the same direction as the outer frame l of the thinner part of the body part. The outer frame l can be removed by loosening the screws 12 fixing the portion λ. Since the body part is tapered, the remaining navel t can be easily pulled upward by hand after removing the outer frame l.

Moreover, it goes without saying that even when the cable is re-wound onto the reel for the same reason, it can be easily accommodated without any unwinding.

As described in detail of the invention, according to the optical fiber cable transport vehicle of the present invention, the cable can be laid by placing the reel on a cart with wheels, making it easy to transport and requiring less operation. It can also save time. Furthermore, by removing the outer frame of the reel, the cable remaining on the reel can be taken out, so there is no need to leave the reel at the site after the cable is laid, and there is no need to disturb passersby.

In addition, when a couple is laid inside the pipe as shown in Figure 15, the remaining cable can be stored inside the manhole, and the manhole cover can be closed, improving safety at the important point. Ru. Loading and unloading onto a tracker and the like can be done by separating the reel and cart, making work easier and reducing the burden on people. Even if the knurple diameter and weight increase due to an increase in the demand for cable cores, the cable can be laid by one person because the reel can be moved and the cable can be laid by pulling the trolley.

As described above, according to the present invention, the working time is shortened, less operation is required, and it is effective and effective when cables must be laid in a short period of time, such as during emergency restoration.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a transport vehicle in which the optical fiber cable reel of the present invention is fitted, and Fig. 4 (A) is an enlarged perspective view of the support metal fitting of the present invention in which the mandrel is fitted. ,(B)
The figure is an enlarged partial perspective view of the support hardware, Figure 5 is an explanatory diagram of the process of fitting the cart to the reel, Figure 6 is a diagram of the state immediately before fitting the mandrel into the diagonal opening of the support metal, and Figure 7 The figures show other embodiments of the support hardware for a transport vehicle according to the present invention, (A) is an enlarged perspective view of the fitted state of the support hardware and the mandrel, (B) is an enlarged perspective view of the support hardware, ( c) The front view is shown in the figure. Figures 8 and 9 are explanatory diagrams of the laying method, Figures 10 (a) and (b) are diagrams of how to fix the carrier to the ground after fitting the cart to the reel, and Figure 11. Figures (a) and (b) are explanatory diagrams of the structure of the legs of the trolley, Figure 12 is an exploded view of the reel of the present invention, Figure 13 is a conventional cable feeder, Figure 14,
Figure 15 shows the conventional cable installed! 1. Fig. 16 shows Fig. 17 (an explanatory diagram of moving and laying the conventional cable. R: reel, T: trolley, /: outer frame, 2: body, 1
3: Set screw, t: Mandrel, ! = pin, t: cable, 7: main flap, J'/: support hardware, ta: stand, IO = wheel, ll: support leg, 12, lt: cutout groove, tO: ground, 7 person two-carriage Handle: Human. Patent applicant: Nippon Telegraph and Telephone Corporation, patent attorney
Abe Isao Zaji J and L'Taijil' Door Call 2: SU Stop and Walk”

Claims (1)

[Claims] 1. In a transport vehicle for laying optical fiber cables, which is composed of a reel for storing the cable and a cart supporting the reel and having wheels that can be easily moved by hand, etc., the reel carries the cable. It consists of a body part that can be rolled up and stored, and two disc-shaped outer frames that have a hole in the center through which a mandrel can pass. A reel and a cart are configured such that a notch groove is provided, a support metal fitting having a recess is fixed to the cart, and the reel and the cart are integrated so that the notch groove can be removably fitted into the recess. Optical fiber cable transport vehicle. 2. One side of the opening of the concave support metal part of the trolley into which the reel shaft is fitted is open diagonally, and when the trolley is tilted so that the surface is equal to or equivalent to the horizontal surface, The height of the axle of the reel placed on the support metal piece matches the height of the slope of the support metal piece, and the reel axle can be easily inserted into the recess of the support metal piece by rolling the reel. The optical fiber cable transport vehicle according to item 1. 3. The optical fiber cable according to claim 1 or 2, wherein the body of the reel has a taper, and at least the thinner outer frame of the body can be attached and detached. Transport vehicle.