JPH079012U - Roller unit for cable support - Google Patents

Abstract

(57) [Summary] [Purpose] A roller unit that is used by attaching to a cable receiving object when laying a cable in a tow road. It is used by fixing it even if the existing cable receiving object does not interfere with the existing cable receiving object. And a roller unit that can be stored and transported in a state in which a plurality of them are stacked with good stability. [Structure] A plurality of rollers 3v, 3h for guiding the upper, lower, left and right of the cable, a frame body 2 for holding these rollers at least with a width required for guiding the cable, and a fixing provided on the lower surface of the frame body. And a part 5,
The fixing portion is formed to have a width size that is less than half the width size of the frame body, and the fixing portion is attached with one end thereof being offset so as to be substantially flush with one end of the frame body. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a roller unit used for laying a cable on a cable receiving object provided in a tow road and for removing an existing cable from the cable receiving object.

[0002]

[Prior art]

 The cable is laid on the winding path by placing the cable on the cable receiving object M provided in the winding path as shown in FIG. When installing or removing the cable, attach the roller unit 50 to the cable receiving object M, put a cable (not shown) on the roller unit 50, and pull it through. The cable is moved to a predetermined position and tightly bound to the cable receiving object M 1.

The roller unit used in this manner is of various types depending on the type of cable such as an optical fiber cable or a copper wire cable and the part to be used, for example, a straight part or a curved part. There is something. A roller unit 50 shown in FIG. 18 is a typical example for a curved portion of the roller unit 50, and four rollers 51, 51, ... Are formed into a cross-shaped guide path 52 to form a U-shaped frame body. The structure is held by 53, and is used by being fixed to the cable receiving object M via a fixing portion 54 attached to the lower surface of the frame body 53.

Such a conventional roller unit is good when the cable receiving object M does not have an existing cable, but has a problem when there is an existing cable. That is, since the fixing portion 54 is provided in the central portion of the frame body 53, in the fixed state as shown in the figure, half of the fixing portion 54 protrudes toward the supporting surface side of the cable receiving object M and interferes with the existing cable. Therefore, it is necessary to fix it to the cable receiver M so as not to interfere with the existing cable, for example, by making extra effort as shown in FIG. There wasn't.

Further, in the conventional roller unit 50, since the fixing portion 54 and the fixing thumbscrew 55 attached thereto are protruding from the frame body 53 and these interfere with each other, they can be stacked with good stability. There was also the drawback that it could not be done, and it was troublesome to store and transport.

[0006]

[Problems to be solved by the device]

 Therefore, the present invention can be used by fixing a cable receiving object with an existing cable without interfering with the existing cable without any special measures, and by using a plurality of cables with good stability. The purpose is to provide a roller unit that can be stored and transported in a stacked state.

[0007]

[Means for Solving the Problems]

 The roller unit according to the present invention includes a plurality of rollers for guiding the cables in the vertical and horizontal directions, a frame body for holding these rollers at least with a width required to guide the cables, and a lower surface of the frame body. A fixed part is provided, and the fixed part is formed to have a width size less than half the width size of the frame body, and the fixed part has one end substantially flush with one end of the frame body. It is attached so that it is offset.

[0008]

[Action]

 Since the fixed part of this roller unit is attached to the one end side of the frame body, it does not interfere with the existing cable as long as it is fixed to the tip even if the cable receiving object has the existing cable. It is possible to improve the workability of laying work and removing work on the existing road where existing cables are not present. Also, this roller unit can avoid interference between the protrusions of the fixed parts by making the fixed parts that are offset to face each other alternately. Can be done easily and efficiently.

[0009]

【Example】

Embodiments of the present invention will be described below. First Embodiment (FIGS. 1 to 5) The roller unit 1 according to this embodiment is a type that is mainly used in a curved portion, and can reduce the load of cable insertion / removal work when used for a relatively heavy cable. It is an example of the horizontal opening type.

Specifically, a rectangular guide path for guiding the cable C is obtained by assembling two vertical rollers 3v, 3v and two horizontal rollers 3h, 3h on the frame body 2 formed in a U shape in a grid pattern. 4 is formed, and the fixing portion 5 is connected to the lower surface of the frame body 2.

The fixing portion 5 has a fixing portion frame body 6 formed with a width slightly narrower than half the width of the frame body 2, and a thumbscrew 7 for a push screw is screwed into the fixing portion frame body 6, and also for one vertical roller 3v. The supporting shaft 8 is attached across the structure. Further, the fixed part frame body 6 has a structure in which side wall parts 12 and 13 are bent and formed on both sides of an inner wall part 10 which holds the thumbscrew 7, and both side wall parts 12 and 13 are provided with a cable receiving object M. Inserting openings 14 for inserting the tip portions are formed respectively, and further, the side wall portion 12 is provided with a roller connecting portion 15 extending upward (FIGS. 2 and 3).

To connect the fixing portion 5 to the frame body 2 as described above, the upper edge of the side wall portion 13 is welded to the lower surface of the frame body 2, and the roller connecting portion 15 of the side wall portion 12 is connected to the lower horizontal wire. The side wall portion 12 is formed so as to be connected to one end of the frame 3h and is offset so that the side wall portion 12 is substantially flush with one end of the frame body 2.

One of the vertical rollers 3 v is openable and closable to provide a laterally open cable entry / exit path to the guide path 4, and its lower end is rotatably connected to the support shaft 8. The upper end can be brought into and out of contact with the frame body 2, and when the tightening screw 16 screwed therein is loosened, it can be rotated and opened as shown by an arrow X in FIG.

Such a roller unit 1 can be stably stacked as shown in FIG. That is, since the fixing portions 5 are provided in a state of being offset to the frame body 2, the fixing portions 5 are alternately faced to each other, and the protruding portions of the frame body 2 and the thumbscrew 7 interfere with each other. They can be stacked so that they do not exist, and a stable stacked state can be achieved. By enabling such a stable stacking state, it is possible to carry the product by putting it in the carrier 20 as shown in FIG. 7, and the portability is improved.

In the carrier 20, an inverted U-shaped core frame 22 is erected in an oblique state along a diagonal line of the base plate 21 on an upper surface of a base plate 21 formed in a rectangular shape having a size of an outer diameter of the roller unit 1. In addition, the base plate 21 has a structure in which a pair of casters 23, 23 is attached to the lower surface of the base plate 21 in close proximity to the side. Then, for example, a maximum of about 10 roller units 1, 1, ... Are stacked so that the core frame 22 is passed through the guide path 4, and then the core frame 22 is made of rubber and has a large frictional resistance. The band 24 is used as a holding member, and the grip portion 25 at the upper end of the core frame 22 is held and pulled or hung to carry.

Second Embodiment (FIGS. 8 to 12) The roller unit 30 according to this embodiment is of a type that is mainly used for curved portions as well, and it is important to reduce the weight on the assumption that it is used for a cable having a relatively small weight. This is an example of the upper open type.

Specifically, the frame body 31 is formed by an upper frame member 31u and a lower frame member 31d, which are vertically separated and have the same width, to reduce the weight, and the horizontal rollers 32h are attached to the frame members 31u and 31d. , 32h respectively, and both frame members 31u, 31d are connected by two vertical rollers 32v, 32v to form a rectangular guide path 33, and further, a fixing portion 34 is connected to the lower surface of the lower frame member 31d. It is said to be a structure.

The fixing portion 34 is substantially the same as the fixing portion 5 of the above embodiment except that the supporting shaft 8 is not provided, and the fixing portion frame formed with a width slightly narrower than half the width of the lower frame member 31d. Has a frame body 35, the middle wall portion 36 of the fixed portion frame body 35 holds a push screw hinge 37, and a side wall portion 38 has an insertion opening 39 and a side wall portion 40. 39 and the roller connecting portion 41 are formed (FIGS. 9 and 10), the upper end of the side wall portion 38 is welded to the lower surface of the lower frame member 31d, and the lower side of the roller connecting portion 41 of the side wall portion 40 is formed. By connecting one end of the horizontal roller 32h, the side wall portion 40 is connected to one end of the lower frame member 31d so as to be substantially flush.

The upper horizontal roller 32h can be opened and closed to provide an upward-opening cable passage for the guide path 33, and one end of the upper frame member 31u that holds the upper horizontal roller 32h is connected to one vertical roller 32v. On the other hand, the other end can be brought into contact with and separated from the upper end of the other vertical roller 32v, and the tightening screw 42 screwed to the upper end of the vertical roller 32v is loosened. It can be opened by rotating it as indicated by arrow Y.

Third Embodiment (FIGS. 13 to 17) A roller unit 40 according to this embodiment is of a type mainly used for a straight portion, and one horizontal roller 42h and two horizontal rollers 42h and 2 are provided in a frame body 41 consisting of only lower elements. Each of the vertical rollers 42v, 42v is held, and the upper part of the guide path 43 is in an open state.

The fixing portion 44 is formed in a C shape with a width slightly narrower than half the width of the frame body 41, and has a thumbscrew for a pushing screw on the fixing portion frame body 46 having open insertion openings 45 on both sides. 47 is screwed together, and one end thereof is connected to one end of the frame body 41 so as to be substantially flush with each other, as in the above embodiments. In this way, the fixed-portion frame body 46 is made into a C-shape for simplification in view of the fact that in the case of a straight portion, the load applied to it is smaller than that of a curved portion, so that it can be made lighter. is there.

[0022]

[Effect of device]

 As described above, in the roller unit according to the present invention, the fixed portion is formed to have a width size less than half the width size of the frame body, and the fixed portion has one end substantially flush with one end of the frame body. Since it is installed so that it is offset to the front side, it is possible to easily obtain a fixed state that does not cause interference with the existing cable even with a cable receiver with an existing cable, and laying work on the road where the existing cable already exists. It also contributes to the improvement of workability of removing existing cables. In addition, since it is possible to avoid interference between the protrusions of the fixed portion, it is possible to stack a plurality of them with good stability, and storage and transportation can be performed easily and efficiently.

[Brief description of drawings]

FIG. 1 is a side view of a roller unit according to a first embodiment of the present invention.

FIG. 2 is a side view seen from the arrow A ₂ direction in FIG.

FIG. 3 is a side view seen from the direction of the arrow A _{3 in} FIG.

FIG. 4 is a partially omitted plan view seen from the direction of the arrow A _{4 in} FIG.

5 is a bottom view seen from the direction of an arrow A _{5 in} FIG.

FIG. 6 is a side view showing a stacked state of the roller units according to the first embodiment.

FIG. 7 is a perspective view of a carrier for carrying the roller units in a stacked state.

FIG. 8 is a side view of a roller unit according to a second embodiment of the present invention.

9 is a side view seen from the direction of an arrow A _{9 in} FIG.

10 is a side view as seen from the direction of the arrow A _{10 in} FIG.

FIG. 11 is a partially omitted plan view seen from the direction of arrow A _{11 in} FIG.

FIG. 12 is a bottom view seen from the direction of an arrow A _{12 in} FIG.

FIG. 13 is a side view of a roller unit according to a third embodiment of the present invention.

FIG. 14 is a side view seen from the direction of arrow A _{14 in} FIG.

FIG. 15 is a side view seen from the direction of the arrow A _{15 in} FIG.

16 is a plan view seen from the direction of the arrow A _{16 in} FIG.

FIG. 17 is a bottom view seen from the direction of the arrow A _{17 in} FIG.

FIG. 18 is a perspective view showing a state in which a conventional roller unit is attached to a cable receiver.

FIG. 19 is a perspective view showing a state in which a conventional roller unit is attached to a cable receiver in a special form.

[Explanation of symbols]

 1, 30, 40 Roller unit 2, 31, 46 Frame body 3v, 32v, 42v Roller 3h, 32h, 42h Roller 5, 34, 44 Fixed part C cable M cable receiving material

Front page continued (72) Inventor Masayasu Imai 3-27-12 Horikiri, Katsushika-ku, Tokyo Yasuda Manufacturing Co., Ltd. (72) Hideo Akai 3-27-12 Horikiri, Katsushika-ku, Tokyo Yasuda Stock Company Inside the factory

Claims (1)

[Scope of utility model registration request] 1. A plurality of rollers for guiding the upper, lower, left and right sides of the cable, a frame body for holding these rollers at least with a width required for guiding the cable, and a fixing portion provided on the lower surface of the frame body. Concerning the laying of the cable on the cable receiving object provided in the tow road or the removal of the existing cable from the cable receiving object, it is being installed or removed while being fixed to the cable receiving object via the fixing part. In the roller unit used for the cable guide, the width of the fixed portion is less than half the width of the frame body, and the fixed portion is offset so that one end thereof is substantially flush with one end of the frame body. A roller unit for cable support, which is characterized by being installed in a row.