JPH0439234Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a cable deployment device that is small and convenient for transportation.

(Prior Art) Cable-stayed cables used as main structural members in suspended structures are becoming longer and longer as the suspended structures become larger. This cable-stayed cable is transported from the factory wrapped around a take-up reel to the site, but the cable deployment device that rotatably holds this take-up reel and unwinds the cable-stay cable at the site also increases the size of the reel. As a result, the cable deployment device has become larger, which has caused problems in transporting the cable deployment device. In other words, in order to rotatably support the rotation axis of the reel, the above-mentioned deployment device requires a minimum height of the support part that is equal to or higher than the radius of the reel. As the height of the parts increases, the reinforcing structure also becomes correspondingly larger, which not only makes the device larger and heavier overall, but also risks exceeding the height restrictions established along the transport route. . Furthermore, in order to set the reel in the device, it is necessary to pass the shaft through the reel, but as the device becomes larger, this operation also becomes more extensive.

(Purpose of the invention) This invention was made in order to eliminate these conventional drawbacks; even if the take-up reel becomes larger, the height of the cable deployment device does not increase, and therefore it is lightweight. The present invention provides a cable deployment device that does not pose a problem in transportation.

(Structure of the invention) A cable winding reel having disk flanges on both sides, a support stand, and a cable winding reel installed on the support stand to rotatably support the cable winding reel on the outer peripheral surfaces of the flanges on both sides. a support roller for pressing the reel onto the support roller, a tightening means for pressing the reel onto the support roller, and a braking means for applying rotational braking force to the support roller, and a through hole is formed in the center of rotation of the take-up reel. A locking portion is formed at both ends of the through hole, and the locking portion includes an outer bushing fixed to the flange of the reel, and an inner bushing rotatably disposed within the outer bushing via a bearing. The tightening means includes a rope whose one end is connected to a support on one side of the reel, which ascends vertically, passes through the through hole of the reel, and then descends vertically. The other end of the reel is connected to a tightening machine provided on the support stand on the other side of the reel, and is configured to apply a vertically downward force to the reel, and the support roller is connected to a tightening machine provided on a support stand on the other side of the reel, and the support roller is connected to a tightening machine provided on a support stand on the other side of the reel. One side is movably mounted on a support base to accommodate fluctuations in the temperature.

In this way, because the reel is held by being pulled vertically downward with a rope without providing a rotating shaft, the device can be made smaller regardless of the diameter of the reel, and it is extremely easy to carry out on-site work. be able to.

(Example) In FIGS. 1 and 2, a cable winding reel 2 is rotatably held by a cable deployment device 1. This device 1 includes a support stand 3, a pair of support frames 4 installed on the support stand 3, a pair of support rollers 5 and a pair of support rollers 6, which are each rotatably held by the support frames 4. It has One of the support frames 4 is movably attached to the support stand 3 so that the interval between them can be set according to the reel 2. The reel 2 consists of a cylindrical body 21 and flanges 22 on both sides thereof, and both flanges 2 are located at the center of rotation.
2 is provided with a locking portion 8. The support rollers 5 and 6 each include a pair of rollers arranged at a predetermined interval, and the support rollers 5 and 6 rotatably support the outer peripheral surfaces of both flanges 22. These rollers 5 and 6 have the flanges 2
2, it is preferable to provide a rubber lining in order to improve the compression bonding efficiency between the two. Also, the thickness of the flange changes depending on the size of the reel, so
It is preferable that the widths of the rollers 5 and 6 be configured to be adjustable accordingly.

A braking means 7 is arranged on the support base 4, and the braking means 7 applies rotational braking force to the support rollers 5 and 6. Further, an outrigger 30 is provided on the support base 3 to prevent the device 1 from tilting to the left in FIG. 1 when the cable 20 is pulled out from the reel 2. In addition, a rope 9 whose one end is locked to a hook 91 provided on one support frame 4 is connected to a locking portion 8 of the reel 2.
The rope passes through the reel 2 and is connected to a rope tightening device 90 provided on the opposite side of the holding frame 4, thereby forming a tightening means. The reel 2 is pulled downward as the rope 9 is pulled by the tightening machine 90, thereby preventing the reel 2 from coming off the support rollers 5 and 6 due to rotation of the reel 2.

3 and 4 show the structure of the locking part 8,
The locking portion 8 includes an outer bushing 80 fixed to the flange 22 and an inner bushing 81 disposed inside the outer bushing 80.
and a bearing 82 interposed between them, one side (outside of the reel 2) of the inner bush 81 is formed into a flap shape, and a guide member 83 is provided in a part thereof. Although only the locking portion on one side is shown in the drawing, the locking portion on the other side is also configured symmetrically. The rope 9 passes inside the inner bush 81 and passes through the guide member 83.
is fixed in a fixed position, thereby reel 2
During the rotation of the reel 2, the rope 9 pulls the reel 2 downward at a certain position.

The reason why the rope 9 is prevented from rotating when the reel 2 rotates is to prevent the rope 9 from being twisted and changing in length, thereby preventing the tightening force from fluctuating.

Note that the locking portion is not limited to this and can be modified in various ways; for example, a pipe may be rotatably penetrated through the center of rotation of the reel 2, and the rope 9 may be passed through the pipe; The guide member 8 is formed by forming notches at both ends of the pipe.
It may also be made to have the same effect as 3.

In the above configuration, as shown in FIG. 1, the reel 2 is placed on the support rollers 5 and 6, and by pulling the cable 20, the reel 2 can be rotated on the rollers 5 and 6, and the cable 20 can be unfolded. Further, by applying an appropriate braking force to the rollers 5 and 6 by the braking means 7, the feeding of the cable 20 can be adjusted. This device can accommodate reels of various sizes. That is, even when using a small reel 29 as shown by the imaginary line in FIG.
The reel 29 is supported by adjusting the interval between the rollers 5 and 6.
Just place it on top and apply downward force with the rope 9 in the same way as above. When the reel is removed, the height of the device 1 is determined by the height of the support frame 4 and the rollers 5, 6, which remains constant regardless of the size of the reel, and which supports the lower part of the reel. This is extremely low due to the configuration. Therefore, it is easy to handle, and even when the device is mounted on a truck, there is no risk of problems such as exceeding the height limit. Furthermore, when attaching and detaching the reel 2 to and from the device 1, it is not necessary to attach and detach the rotating shaft at a high position, so the operation is easy.

In addition, since the rotation axis of the reel is conventionally held, the support frame 11 is required to extend to the rotation axis of the reel 2, as shown in FIGS. 1 and 2. In this case, the height (to the upper end of the support frame 11) was increased even when the reel was removed and transported.

(Effects of the invention) As explained above, this invention includes support rollers that rotatably support the cable deployment device on the outer peripheral surfaces of flanges on both sides of the reel, and a tightening means that pulls both sides of the rotation axis of the reel downward. and,
The device is configured with a braking means that applies rotational braking force to the support roller, and the size of the device, especially the height, can be kept low regardless of the size of the reel, and the device is compact and easy to use on site. It is also easy to transport and does not cause any problems during transportation.

[Brief explanation of the drawing]

Figure 1 is a front view showing an embodiment of this invention, Figure 2 is a front view showing an embodiment of this invention.
The figure is a sectional view thereof, FIG. 3 is an enlarged sectional view of the locking portion, and FIG. 4 is a front view thereof. 1... Cable deployment device, 2... Cable take-up reel, 3... Support stand, 4... Support frame, 5, 6
... Support roller, 7 ... Braking means, 8 ... Locking part, 9 ... Tightening rope, 22 ... Reel flange, 90 ... Rope tightening machine.

Claims (1)

[Scope of utility model registration request] A cable take-up reel having disk flanges on both sides, a support stand, and a support roller installed on the support stand to rotatably support the cable take-up reel on the outer peripheral surfaces of the flanges on both sides, respectively; The take-up reel has a tightening means for pressing the reel onto the support roller, and a braking means for applying rotational braking force to the support roller, and a through hole is formed in the center of rotation of the take-up reel. A locking portion is formed at both ends of the reel, and the locking portion is formed by an outer bushing fixed to the flange of the reel and an inner bushing rotatably disposed within the outer bushing via a bearing. The tightening means is configured such that a rope, one end of which is coupled to a support on one side of the reel, ascends vertically and passes through the through hole of the reel, then descends vertically to secure the other end of the rope. is connected to a tightening machine provided on the support stand on the other side of the reel, and is configured to apply a vertical downward force to the reel, and the support roller can accommodate variations in the distance between both flanges of the reel. A cable deployment device characterized in that one side is movably mounted on a support base.