JP2007110773A - Feeding mechanism of spiral support tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a feeding mechanism of a spiral support tool requiring a small footprint through which the laying work of a spiral support can be carried out by one person. <P>SOLUTION: The feeding mechanism of the spiral support tool is constituted of a portable base member 3 installed on the road surface 17, and a drum 5 attached removably to the base member 3 and winding a spiral support 7. The winding drum 5 is supported rotatably in two modes of first rotational movement (a) rotating about the axis XL of the winding drum 5 which is a level on the road surface 17, and second rotational movement (b) where the entire drum rotates about the orthogonal drum axis XF traversing the center of the drum axis XL in the horizontal direction along the drum axis so that the spiral support 7 can be drawn out smoothly by the first rotational movement (a). The winding drum 5 is also rotated by the second rotational movement (b) in the direction for releasing the torsional spring pressure in the rotational direction of a spiral groove. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a feeding device for a spiral support suitable for laying a spiral support for wiring various cables such as an optical cable on a suspension line spanned between a utility pole.

  In general, various cables such as an optical cable are wired along the inside of a spiral support called a cable hanger.

  The spiral support is made into a spiral having a predetermined length and is used by connecting them, and there is a type in which the spiral support is made to be a long spiral and cut into a predetermined length. In the former case, one end of a spiral support made of a spiral of a predetermined length is inserted into the suspension line spanned between the utility poles and continues to rotate along the spiral in a certain direction. It is constructed by taking a hanging line inside. Subsequently, after the next spiral support tool is erected on the suspension line by the above-described operation, the spiral support tools are joined together by a connecting tool. In the latter case, as shown in FIG. 9, for example, one of the spiral supports 103 temporarily arranged on the road surface with respect to the suspension line 101 spanned between the utility pole and the utility pole (not shown). The end spiral groove is inserted into the suspension line 101, and is constructed by continuing the operation of sequentially taking the suspension line 101 into the interior while continuously rotating (arrow) along the spiral groove.

  Among the spiral supports made of spiral, in particular, the latter spiral support is made from a long spiral object, so that it can be installed between the utility poles as described above. After it is cut, it is necessary to temporarily arrange it along the road surface, and also insert one end spiral groove of the temporarily arranged spiral support tool into the hanging line, and rotate it along the spiral groove as it is. However, it is not desirable in terms of the work space because it occupies a long space and obstructs the passage of sidewalks, roadways, etc. In the latter case, since the work is erected while rotating along the spiral groove, the twisted groove is prevented so that the twist does not occur since the twist is sequentially accumulated in the terminal region that is not yet erected. It is necessary to rotate the helical support along the direction of rotation. For this reason, there is a problem that manpower is required, for example, an auxiliary worker for preventing twisting is required in addition to the worker who installs the spiral support on the suspension line.

  Accordingly, an object of the present invention is to provide a spiral support feeding device that requires only a small occupied installation space and that can be installed alone.

  In order to achieve the above object, the present invention comprises a portable base member installed on a road surface and a take-up drum that is detachably mounted on the base member and winds up a spiral support. The winding drum has a first rotational motion that rotates about the drum axis of the winding drum that is horizontal with respect to the road surface, and a drum together with the drum axis about the orthogonal drum axis that crosses the center of the drum axis in the horizontal direction. The second embodiment is characterized in that it is rotatably supported in two modes of the second rotational movement that rotates as a whole.

  According to the present invention, since the spiral support tool is fed out in a state of being wound on the winding drum, the installation space for installing the base member is sufficient as the dedicated space, and a small occupied space is sufficient. It becomes like this. Moreover, since it can be carried, it can be easily installed at any work site.

  Further, when the spiral support tool wound up on the winding drum is pulled out, the winding drum can smoothly pull out the spiral support tool by the first rotational movement around the drum axis.

  In addition, the spiral support tool can be installed on the suspension line by inserting the end spiral groove of the drawn spiral support tool into the suspension line and sequentially rotating it along the spiral groove as it is.

  At this time, on the winding drum side, the twisting accompanying the rotation of the spiral support tool at the time of erection and the twisting pressure due to the twisting are sequentially accumulated. The whole is rotated by the second rotational movement around the orthogonal drum axis. At this time, since the spiral support member wound on the winding drum rotates in the direction of rotation of the spiral groove, that is, in the direction of releasing the spring pressure when twisted, it can be easily installed by one person without any trouble due to twisting. Work can be done.

  In the present invention, firstly, at least a pair of spiral shapes in which the free end side is an open space above the winding space formed by the winding drum portion and the left and right flange portions of the winding drum. Support stopper removal prevention stopper is provided to prevent the removal of the spiral support tool during the feeding operation, and the opening space of the spiral support tool removal prevention stopper faces upward so that the winding drum can be opened from above. Set the work port for easy replacement.

  Second, the rotational axis trace of the second rotational movement in which the entire drum rotates together with the drum axis about the orthogonal drum axis can be adjusted from a vertical position passing through the vertical axis to an inclined position inclined by a predetermined angle, The helical support can be fed out from the optimum position according to the inclined surface of the road surface on which the member is installed.

  Hereinafter, the first embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7.

  FIG. 1 is a schematic front view showing a feeding device for a spiral support according to the present invention, FIG. 2 is an exploded perspective view of a drum shaft that rotatably supports a winding drum, and FIG. 3 is a schematic perspective view of a base member. Each is shown.

  The spiral support feeding device 1 is sized to be portable, and includes a base member 3 and a winding drum 5.

  The winding drum 5 is detachably attached to the base member 3 so that it can be replaced with a new winding drum when the wound spiral support 7 is used up. In the structure, a winding space 15 is formed by a winding drum portion 11 having a shaft hole 9 penetrating in a central portion and left and right flange portions 13 provided on both sides thereof. The spiral support 7 is wound up. The spiral support 7 is made into a long object formed in a spiral with a predetermined pitch in a factory, and is shipped in a state where it is continuously wound around the winding drum 11. In this case, there is a case where the spiral support tool 7 made of a long object is bundled in advance, and the wound spiral support tool 7 is attached to the take-up body 11 and shipped later.

  The base member 3 has an installation frame 23 composed of a combination of a rectangular frame 19 and a triangular frame 21 and a support frame 25 standing vertically from both sides of the installation frame 23 in order to ensure support stability when installed on the road surface 17. It has a rising shape.

  The left and right support frames 25 are secured by a reinforcing frame 27 extending from the installation frame 23, and the upper ends thereof are bearings that rotatably support both ends of a ring arm 31 of a guide ring 29 formed in a perfect circular ring shape. Part 33 is formed.

  The bearing portion 33, the guide ring 29, and the ring arm 31 are formed by the following relationship. That is, with reference to the horizontal axis X parallel to the road surface 17 in FIG. 1 and the front view, the left and right bearing portions 33 are provided on the horizontal axis X so as to face each other.

  On the other hand, the guide ring 29 is oriented in the direction of a perfect ring in FIG. 1 and the front view, and on both sides thereof, ring arms 31 that are rotatably supported by the bearing portion 33 are provided. It has a structure.

  Of the left and right bearing portions 33, one bearing portion 33 (left side in FIG. 1) is provided with a bearing bolt 35. By loosening the bearing bolt 35, the guide ring 29 is set to a horizontal axis Y as shown in FIG. Position adjustment is possible from a vertical position (chain line) passing through to an inclined position (solid line) inclined by a predetermined angle.

  Thereby, the spiral support 7 can be always fed out from the optimum position corresponding to the inclined surface of the road surface 17 to be installed.

  In the internal space of the guide ring 29, the winding drum 5 is rotatably supported via a drum shaft 37.

  As shown in FIG. 2, the drum shaft 37 is formed in a cross shape with the sub shaft 39, and rolling wheels 41 and 43 are provided at both ends of the drum shaft 37 and both ends of the sub shaft 39, respectively. , 43 can roll along the inner peripheral surface of the guide ring 29.

  A central portion of the drum shaft 37 is a drum mounting shaft portion 45 to which the winding drum 5 is rotatably mounted. The winding drum 5 rotates in a first rotation about the drum axis XL of the drum shaft 37. The movement a, that is, the feeding rotation when the spiral support 7 is fed out is obtained. Further, the rolling drums 41 and 43 provided on the drum shaft 37 and the sub shaft 39 rotate the entire winding drum 5 together with the drum shaft 37 around the orthogonal drum axis XF that horizontally crosses the drum axis XL. The second rotational movement b, that is, spiral support tool rotation in the same direction when the spiral support tool 7 is rotated along the spiral groove is obtained.

  In this case, since the rotation b of the winding drum 5 needs to rotate around the intersection 0 where the rolling wheel axis passing through the rolling wheels 41 and 43 intersects as shown in FIG. 39 is formed in a U-shape, and the winding drum 5 is disposed in the concave portion to adopt a means in which the center of the winding drum 5 faces around the intersection 0.

  The sub-shaft 39 formed in a U-shape has further advantages and functions as a mounting member for mounting a pair of cantilever-supporting stopper removal prevention stoppers 47 that are cantilevered so that the free end side is an open space. At this time, the spiral support tool detachment stopper 47 crosses the winding space 15 of the winding drum 5 and prevents the spiral support tool 7 from coming out.

  As shown in FIGS. 5 and 6, when the sub shaft 39 has the concave portion facing upward with respect to the road surface 17, the upward state is secured in a stable state with respect to the center of gravity. Therefore, in combination with the condition that the open space on the free end side of the spiral support tool detachment prevention stopper 47 faces upward and the condition when a part of the drum shaft 37 is removed as will be described later, it is relatively heavy. A function for easily exchanging a certain take-up drum 5 from above is also obtained.

  On the other hand, the rolling wheels 43 provided at both ends of the subshaft 39 are fixed types that cannot be removed after being assembled in the guide ring 29.

  One of the rolling wheels 41 provided on both ends of the drum shaft 37 (the left side in FIG. 2) can be removed together with the shaft from the drum mounting shaft 45, and a guide ring 29 is provided by a pair of upper and lower shaft screws 49. It is a movable type that can be expanded and contracted to move forward and backward as it approaches the inner circumference.

  The rolling wheel 41 (left side in FIG. 1) that is a movable type has a double structure of an inner shaft 37a and an outer shaft 37b, and the shaft screw 49 provided on the outer shaft 37b is loosened to loosen the inner shaft 37a. Expansion / contraction adjustment (arrow) is possible.

  The drum mounting shaft 45 is configured such that the shaft hole 9 of the take-up drum 5 is rotatably inserted, and restriction flanges 51 and 52 for suppressing the axial movement of the take-up drum 5 are provided at both ends thereof. It has been. One restriction flange 51 can be removed together with the inner shaft and the outer shafts 37a and 37b by screw fitting.

  Specifically, the male flange 55 is provided on the restriction flange 51, and the female screw 57 to which the male screw 55 is screwed is provided on the drum mounting shaft portion 45, and the male screw 55 is screwed and rotated in a tightening direction with respect to the female screw 57. Can be installed. Further, by rotating in the loosening screw release direction, it can be removed as shown in FIG. Accordingly, the take-up drum 5 can be removed and a new take-up drum 5 can be replaced by removing the inner shaft 37a and the outer shaft 37b. Alternatively, it is possible to mount the spiral support 7 wound on the removed winding drum 5 and reset it again.

  According to the helical support feeding device 1 configured as described above, it can be used in a small occupied space by being carried to the work site.

  Further, by pulling out the spiral support 7 from the take-up drum 5 as shown in FIG. 7, the take-up drum 5 can be pulled out smoothly as indicated by an arrow by the first rotational motion a that rotates about the drum axis XL. become.

  Next, the end spiral groove of the spiral support 7 pulled out from the winding drum 5 is inserted along the spiral groove with respect to the suspension line 59 spanned between the utility pole and the utility pole (not shown), The suspension line 59 is constructed by sequentially taking the suspension line 59 into the inside while rotating along the spiral groove as it is.

  During this erection operation, the winding drum 5 accumulates the twisting force and the twisting pressure caused by the rotation of the helical support 7 during the erection, and the twisting pressure is accumulated gradually. Then, the winding drum 5 rolls inside the guide ring 29. At the same time, the helical support 7 rotates in the direction of rotation of the spiral groove, that is, in the direction of releasing the spring pressure when twisted, by the second rotational motion b that rotates entirely around the orthogonal drum axis XL at the rolling wheels 41 and 43. Rotate. As a result, there is no need to worry about twisting during the erection work, and the erection work of the spiral support 7 can be easily performed by one person.

  FIG. 8 shows a second embodiment of the feeding device 1 for the spiral support.

  The feeding device 1 has a structure in which the winding drum 5 is rotatably supported via a support arm 61 provided on the base member 3.

  The base member 3 is formed in an angle shape in which a vertical portion 67 rises from a horizontal portion 65 installed on the road surface 17, and the support arm 61 is mounted and supported on the upper end of the vertical portion 67.

  The support arm 61 is formed in a crank shape when viewed from a plane, and one base end portion is rotatably supported by an attachment bracket 69 on the upper end of the vertical portion 67. The winding drum 5 is detachably attached to the other free end portion via a drum shaft 71 and is rotatably supported.

  The drum axis XL of the drum shaft 71 is the same as the drum axis XL of the first embodiment, and a first rotational motion a for feeding the spiral support 7 from the take-up drum 5 is obtained. .

  The arm axis line XF of the support arm 61 passing through the mounting bracket 69 is the same as the orthogonal drum axis line XL of the first embodiment, and the second rotational motion is a spiral support rotation that rotates along the spiral groove. b is obtained.

  Therefore, when the winding drum 5 is in the first rotational motion a around the arm axis XL of the arm shaft 71, the spiral support 7 can be pulled out without any trouble.

  Next, the terminal spiral groove of the drawn spiral support tool 7 is inserted into the suspension line 59 and rotated as it is along the spiral groove, so that the suspension line 59 can be installed.

  At this time, the twisting pressure caused by twisting with the rotation of the spiral support tool 7 is accumulated in the spiral support tool 7 of the take-up drum 5. The second rotational motion b occurs, and twisting is eliminated by rotating the accumulated twisting in the direction to release the spring pressure, so that even one person can easily perform the installation work.

  In this case, a drive motor M is provided at the base end portion of the support arm 61 as indicated by an imaginary line, and the winding drum 5 is rotated by the drive motor M in synchronization with the rotation of the spiral support 5 when it is installed. The second rotational motion b by the motor M may be obtained.

  In addition, it is desirable to provide the extension support 73 extending from the tip of the support arm 61 with the same spiral support removal prevention stopper 47 as in the first embodiment.

The outline | summary front view of the drawing | feeding-out apparatus of the spiral support tool concerning this invention. The disassembled perspective view which showed the drum shaft and subshaft which mount and support a winding drum rotatably. The outline perspective view of a base member. The schematic side view which shows the inclination state which inclined the guide ring by the predetermined angle. The outline front view of the feeding device which shows the state where the winding drum was removed. The outline | summary front view of the feeding apparatus which shows the state equipped with the winding drum. The schematic explanatory drawing which showed the construction work state of the spiral support tool. The general | schematic perspective view which showed 2nd Embodiment of the drawing | feeding-out apparatus of a helical support tool. Operation | movement explanatory drawing which showed the general well-known example which constructs a helical support tool to a hanging line.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Base member 5 Winding drum 7 Helical support tool 11 Winding trunk | drum 13 Flange part 15 Winding space 17 Road surface 47 Helical support tool removal prevention stopper XL Drum axis line XF orthogonal drum axis line a 1st rotational motion b 2nd Rotational motion

Claims (3)

  A portable base member installed on a road surface, and a winding drum that is detachably mounted on and supported by the base member and winds a spiral support, and the winding drum is parallel to the road surface. The first rotary motion that rotates around the drum axis and the second rotary motion that rotates the entire drum together with the drum axis about the orthogonal drum axis that crosses the center of the drum in the horizontal direction. A helical support tool feeding device, characterized by being supported by the screw.   Provided above the winding space formed by the winding drum portion and the left and right flange portions of the winding drum is at least a pair of helical support removal prevention stoppers that are cantilevered so that the free end side is an open space. The helical support feeding device according to claim 1, wherein:   The position of the rotation axis trace of the second rotational movement in which the entire drum rotates together with the drum axis about the orthogonal drum axis is adjustable from a vertical position passing through the vertical axis to an inclined position inclined by a predetermined angle. The feeding device for a spiral support according to claim 1.

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