JP6267897B2 - Transporting concrete pillars - Google Patents

Description

  The present invention relates to a method for transporting a concrete pole such as a power pole.

  Concrete poles such as utility poles may be transported by transportation equipment such as trucks, trains and ships. For example, Patent Document 1 discloses a truck for carrying a utility pole.

Japanese Patent Application Laid-Open No. 08-216772

When a new utility pole is shipped from a utility pole manufacturer by truck or the like, a shipping buffer rope is wound around, for example, two places above and below the utility pole in order to prevent damage due to vibration during transportation. Such a shipping buffer rope is usually discarded after a pillar.
On the other hand, when transporting for the purpose of reusing used utility poles, such as temporary poles for laying wires in the construction of utility poles, contractors and carriers do not have appropriate buffer ropes. Therefore, it may be transported by simply tying up the utility pole using a general load rope or the like.

  General ropes are generally thin in wire diameter, and unless they are wound in multiple layers, sufficient spacing between adjacent power poles cannot be ensured. In addition, since the strength is not sufficient, it can be worn or crushed by the weight of the utility pole or the impact load during vibration, and cannot function as a buffer. For this reason, there is a risk that the utility poles or the protective caps may be damaged due to collision between the utility poles or between the protective caps placed on the tops of the utility poles, or between the utility poles and the truck loading portion due to vibration during transportation. Furthermore, it is difficult to reuse the rope itself having insufficient strength.

  The present invention has been made in view of the above-described problems, and its purpose is to prevent the concrete column itself or a protective member attached to the concrete column from colliding with an adjacent object due to vibration during transportation. It is to provide a transportation method.

  The present invention provides a transportation method for preventing a concrete pillar itself or a protective member attached to the concrete pillar from colliding with an adjacent object due to vibration during transportation when the concrete pillar is transported by a transportation device, and consequently being damaged. It is such an invention. This transport method is characterized in that a flaw-proof member is attached to the outer periphery of the concrete column, and the interval between the concrete column and the adjacent object is maintained at a predetermined minimum interval or more.

“Transport equipment” and “concrete columns” in the present invention are typically trucks and utility poles. The “protective member attached to the concrete pole” is, for example, “a protective cap placed on the head of the electric pole”. In addition, in the case of “collision with adjacent objects”, when adjacent concrete columns collide, when protective members mounted on adjacent concrete columns collide, concrete columns and loading parts of transportation equipment collide Etc.
The “predetermined minimum interval” means a minimum interval for preventing these objects that may collide from contacting each other. In the present invention, by attaching a scratch-proof member to the outer periphery of the concrete column, the concrete column or the like is damaged due to a collision as compared with a simple case of using a general load rope with a thin wire diameter and insufficient strength. Can be prevented.

  One aspect of the scratch-proof member is a rod-shaped member including a core material and a covering material. The core material can reversibly deform the stretched state and the state bent in a loop shape with a curvature corresponding to the outer diameter of the concrete column. The covering material is formed of a flexible material that can follow the bending of the core material, has a wire diameter equal to or greater than a predetermined minimum interval, and covers the core material. The covering material preferably has an impact absorbing hole formed around the core hole that accommodates the core material.

This scratch-proof member can maintain a loop-like shape only by wrapping around the concrete pillar, and does not need to be bound like a rope. Moreover, since it can attach to the arbitrary height positions of a concrete pillar from an outer diameter direction, workability | operativity is favorable. Furthermore, it can be used universally for concrete columns with different outer diameters in one kind of size. In addition, since it can be stored in the stretched state, the storage space can be reduced.
Furthermore, by forming the scratch-proof member with a resin material having excellent wear resistance, it can be repeatedly used in a plurality of transportations.

Another aspect of the scratch-proof member is a soft ring-shaped member having a radial width equal to or greater than a predetermined minimum interval. The size of the scratch-proof member is selected according to the outer diameter of the target concrete pillar.
Further, by forming the ring-shaped scratch-proof member so as to be capable of being divided and connected at least at one place in the circumferential direction, the concrete column can be easily attached and detached from the radially outward direction.

BRIEF DESCRIPTION OF THE DRAWINGS (a) The figure of the extending | stretching member of 1st Embodiment used for the conveyance method of the utility pole of this invention, (b) The figure of the state bent in the loop shape, (c) It is sectional drawing. It is a schematic diagram which shows the state which attached the damage prevention member by 1st Embodiment of this invention to the utility pole at the time of conveyance of a utility pole. It is a schematic diagram which shows the conveyance state of the utility pole by a truck. It is the (a) top view of the flaw-proof member of 2nd Embodiment used for the conveyance method of the utility pole of this invention, (b) The schematic diagram which shows the state attached to the utility pole. It is an expanded sectional schematic diagram which shows the state which attached to the utility pole the damage prevention member of the modification of (a) 2nd Embodiment and (b) 2nd Embodiment which are used for the conveyance method of the utility pole of this invention. (A) The top view of the flaw-proof member of 3rd Embodiment used for the conveyance method of the utility pole of this invention, (b) The principal part enlarged view, (c) The principal part enlarged view of the modification of 3rd Embodiment. . It is a schematic diagram which shows the conveyance method of the utility pole of a comparative example.

Hereinafter, an embodiment of a concrete column carrying method according to the present invention will be described with reference to the drawings. This embodiment is a method of carrying a utility pole by a truck.
As shown in FIG. 3, when a plurality of utility poles 7 are placed on the loading platform 91 of the truck 9, the utility poles 7 arranged in the vehicle width direction are placed on the front frame 92 and the rear frame 93 and fixed by the fixing rope 94. Generally, the utility pole 7 is formed in a taper shape in which the outer diameter on the main opening 72 side (lower side) is larger than the outer diameter on the end opening 71 side (upper side), and the main opening 72 is heavier. Therefore, the loading is performed with the end 71 side on the front frame 92 side and the main port 72 side on the rear frame 93 side. A protective cap 8 may be put on the end 71 which is the head of the utility pole 7.
The electric pole 7, the protective cap 8, and the truck 9 correspond to “concrete pole”, “protective member”, and “transport equipment” recited in the claims, respectively.

  Here, the utility pole 7 to be transported is assumed to be a temporary pole for temporarily laying an electric wire in the rebuilding work of the utility pole, rather than a new utility pole shipped from a utility pole manufacturer. When a new utility pole is shipped from a utility pole manufacturer, the damage of the utility pole due to vibration during transportation is basically prevented by the buffering rope for shipment, so that there is no problem.

On the other hand, when transporting for the purpose of reusing used utility poles such as temporary poles, construction contractors and carriers do not have appropriate buffer ropes, and utility poles using general load ropes, etc. It may be transported simply by tying up. At this time, if a rope with insufficient wire diameter and strength is used, the buffer function cannot be achieved. Therefore, the adjacent utility poles 7 and the protective caps 8 may collide with each other due to vibration during transportation, and the utility poles 7 and the protective caps 8 may be damaged.
An object of the present invention is to provide a method of transporting a utility pole using a scratch-proof member (scratch-proof bar 10 in FIG. 3) in order to prevent such damage of the utility pole 7 and the like during transportation. is there.

(First embodiment)
The flaw-proof member of the first embodiment used in the method for carrying a utility pole of the present invention will be described with reference to FIGS. The scratch-proof bar 10 as a “scratch-proof member” is a bar-shaped member including a core material 11, a covering material 12, and an end cap 18. This flaw-proof bar 10 is always provided by a contractor who performs a rebuilding work of a utility pole or a transporter who carries a utility pole.

The core material 11 is comprised with an annealed iron wire etc., and can deform | transform reversibly the extending | stretching state shown to Fig.1 (a), and the state bent in the loop shape shown to FIG.1 (b). Specifically, it is possible for an operator to bend in a loop shape or return to the stretched state by applying force while holding both ends of the covering material 12. Is maintained.
The curvature of the loop in FIG. 1B corresponds to the outer diameter of the utility pole to which the flaw-proof bar 10 is applied.

The covering material 12 is made of a flexible material such as a resin that can follow the bending of the core material 11 and covers the core material 11. Furthermore, the covering material 12 of the present embodiment is formed of a resin material or the like having excellent wear resistance.
As shown in FIG. 1C, the covering material 12 has a core hole 13 that accommodates the core material 11 at the approximate center of the cross section, and a plurality of shock absorbing holes 14 are formed around the core hole 13. Has been. The shock absorbing hole 14 penetrates the covering material 12 in the axial direction. When an impact is applied from the radially outward direction of the covering material 12, the impact absorbing hole 14 is deformed to absorb the impact.

  The end cap 18 covers both ends of the covering material 12 and prevents the core material 11 from protruding and foreign matters from entering the shock absorbing hole 14. Further, the end cap 18 makes the feel good when the operator handles the scratch-proof bar 10. Furthermore, by making the color of the end cap 18 different from the color of the covering material 12, it becomes easier for the operator to visually recognize the end portion of the scratch-proof bar 10, and workability is improved.

As shown in FIG. 2, the scratch-proof bar 10 is attached so as to wind the outer periphery of the utility pole 7 one more time. A resin protective cap 8 is placed on the end 71 of the utility pole 7. Similarly, the end cap 71 of the adjacent utility pole 7 'is covered with a protective cap 8'. The outer diameter of the protective caps 8 and 8 'is larger than the outer diameter of the utility poles 7 and 7' by the thickness of the plate and the radial rib.
Here, when the predetermined minimum interval that should be ensured so that the protective cap 8 of the utility pole 7 does not contact the protective cap 8 ′ of the adjacent utility pole 7 ′ is L, the wire diameter W1 of the covering material 12 is predetermined. The minimum interval L is set.

Even if the adjacent power pole 7 ′ falls so as to approach the power pole 7 due to vibration during transportation, since the flaw-proof bar 10 having the wire diameter W1 is interposed therebetween, the protective cap 8 of the power pole 7 and the adjacent power pole A space δ is secured between the protective cap 8 ′ and the 7 ′ protective cap. Therefore, it can prevent that the protective caps 8 and 8 'collide and are damaged.
Moreover, when the protective caps 8 and 8 ′ are not covered, the utility poles 7 and 7 ′ can be prevented from colliding with each other and being damaged.

The effect of the utility pole carrying method using the scratch-proof bar 10 of the first embodiment having the above configuration will be described in comparison with the carrying method of the comparative example.
(1) FIG. 7 shows a method of transporting a utility pole of a comparative example that does not use a scratch-proof member. In this comparative example, it is assumed that a contractor or a carrier does not have any other suitable buffer ropes and transports a plurality of utility poles 7 mounted on a truck in a state of being bound by a general load rope 6. . A resin protective cap 8 is placed on the end 71 of the utility pole 7.
Here, when the predetermined minimum interval that should be secured so that the protective caps 8 of the adjacent power poles 7 do not contact each other is L, the wire diameter s of the load rope 6 is smaller than the predetermined minimum interval L. Therefore, the protective caps 8 may collide with each other at the portion X in the figure due to vibration during transportation, and the protective cap 8 and the utility pole 7 may be damaged.

  On the other hand, in the method of transporting the utility pole using the scratch-proof bar 10 of the present embodiment, the scratch-proof bar 10 is attached to the outer periphery of the utility pole 7 loaded on the truck as shown in FIG. In this way, the flaw-proof bar 10 having the wire diameter W1 (> L) is attached, and the interval between the adjacent power poles 7 is kept at a predetermined minimum interval L or more. Therefore, it is possible to prevent the utility poles 7 and the protective caps 8 from colliding with each other due to vibration during transportation, and consequently being damaged.

(2) Since the covering material 12 of the flaw-proof bar 10 is formed of a resin material having excellent wear resistance, it can withstand the weight of the utility pole and the impact load during vibration, and should be used repeatedly for multiple transports. Can do.
(3) The scratch-proof member 10 can maintain a loop-like form only by being wound around the electric pole 7 and does not need to be tied up like a rope. Moreover, since it can attach to the arbitrary height positions of the utility pole 7 from a radial direction, workability | operativity is favorable. Furthermore, it can be used universally for concrete columns with different outer diameters in one kind of size. In addition, since it can be stored in the stretched state, the storage space can be reduced.

  (4) The impact absorbing hole 14 formed in the covering material 12 prevents the impact applied to the outside of the loop of the scratch-proof bar 10 from being directly transmitted to the utility pole 7 on the inside 7 of the loop. Moreover, the bending of the scratch-proof bar 10 is facilitated. Furthermore, since the volume per unit length of the covering material 12 is reduced while securing the wire diameter W1 equal to or greater than the predetermined minimum distance L, the weight can be reduced and the material cost can be reduced.

(Second Embodiment)
Next, the scratch-proof member of 2nd Embodiment is demonstrated with reference to FIG. 4, FIG. In the following description of the embodiment, the same reference numerals are given to substantially the same components as those of the above-described embodiment, and the description thereof is omitted.
As shown in FIGS. 4 and 5A, the flaw prevention ring 201 as a “flaw prevention member” is a ring-shaped member having a circular cross section. The flaw-proof ring 201 is made of soft vinyl chloride or the like, and the wire diameter W2 that is the radial width is set to be equal to or greater than a predetermined minimum distance L.

  Further, the inner diameter of the flaw prevention ring 201 is formed so as to correspond to the outer diameter D1 on the end 71 side (upper side) of the utility pole 7. On the other hand, another flaw-proof ring 202 formed so as to correspond to the outer diameter D2 is used on the main port 72 side (lower side) of the utility pole 7. The flaw-proof rings 202 and 201 are fitted from the end port 71 in descending order of the inner diameter used on the front port 72 side.

  In the second embodiment, it is possible to prevent the adjacent utility poles 7 and the protective caps 8 from colliding with each other due to vibration during transportation and being damaged by the damage prevention member having a simpler configuration than the first embodiment. Similarly to the first embodiment, by forming the flaw-proof rings 201 and 202 with a material having excellent wear resistance, the flaw-proof rings 201 and 202 can be repeatedly used for a plurality of times of transportation.

  In the flaw-proof ring 203 of the modification shown in FIG. 5B, a flat surface 23 is formed on the inner diameter side so as to follow the tapered surface of the utility pole 7 in the cross section. With this configuration, the mounting posture on the utility pole 7 is stabilized, and tilting and twisting are prevented. Also in this example, the radial width W2 'is set to be equal to or greater than the predetermined minimum interval L.

(Third embodiment)
Next, the scratch-proof member of 3rd Embodiment is demonstrated with reference to FIG.
The scratch-proof ring 301 shown in FIGS. 6A and 6B is formed so as to be capable of being divided and connected at one place in the circumferential direction. In this example, an N-pole magnet 31 is embedded in one of the divided ends and an S-pole magnet 32 is embedded in the other end. The strength of the magnet is set to such an extent that it can be detached if pulled by the operator's force and cannot be removed by vibration during transportation.
In the third embodiment, similarly to the second embodiment, adjacent power poles 7 can be prevented from colliding with each other due to vibration during transportation and being damaged. Compared with the second embodiment, since the flaw prevention ring 301 can be attached and detached from the radially outward direction of the utility pole 7, workability is improved.

  Further, like the flaw-proof ring 302 of the modified example shown in FIG. 6C, the male part 33 formed at one of the divided ends is snap-fitted to the female part 34 formed at the other end. You may make it connect both ends by. In addition, various known techniques can be applied to connect both ends of the ring.

(Other embodiments)
(A) “Transport equipment” to which the transport method of the present invention is applied may be a train, a ship, or the like in addition to the truck of the above-described embodiment. In addition, the “concrete column” is not limited to a power pole for connecting an electric wire, but includes a support post and the like. Furthermore, in the description of the above-described embodiment, when a plurality of power poles are transported side by side, the prevention of damage caused by the collision between adjacent power poles has been mentioned. However, the transport method of the present invention includes other power poles or protective caps. It is also effective in preventing damage caused by collision with the truck loading section.
(A) The method for transporting a utility pole of the present invention may be used when shipping a new utility pole.

(C) Any number of scratch-proof members may be used per utility pole.
(D) The number of the impact absorbing holes 14 of the covering material 12 in the first embodiment is not limited to the four locations illustrated in FIG. Further, the shock absorbing hole 14 need not be formed.
(E) The end cap 18 in the first embodiment may be omitted.
(F) In contrast to the third embodiment, the ring may be divided and connected at two or more locations in the circumferential direction.

  As mentioned above, this invention is not limited to such embodiment, In the range which does not deviate from the meaning of invention, it can implement with a various form.

10: Scratch-proof bar (scratch-proof member),
201, 202, 301, 302 ... Scratch-proof ring (scratch-proof member),
7 ... Electric pole (concrete pole), 8 ... Protective cap (protective member),
9: Truck (transport equipment).

Claims (4)

When transporting a concrete column (7) with a transport device (9), the transport prevents the concrete column itself or the protective member (8) attached to the concrete column from colliding with an adjacent object due to vibration during transport. A method,
Install the Bokizu member (10) on the outer circumference of the concrete pole, coercive Chi the distance between the neighbor and the concrete column above a predetermined minimum distance,
The scratch-proof member is
A core material (11) capable of reversibly deforming the stretched state and a state bent in a loop shape with a curvature corresponding to the outer diameter of the concrete column;
A covering material (12) formed of a flexible material capable of following the bending of the core material, having a wire diameter equal to or greater than the predetermined minimum interval, and covering the core material;
A method for transporting a concrete column, characterized by being a bar-shaped member including The method for transporting a concrete pillar according to claim 1 , wherein the covering material has a shock absorbing hole (14) formed around a core hole (13) for accommodating the core material. When transporting a concrete column (7) with a transport device (9), the transport prevents the concrete column itself or the protective member (8) attached to the concrete column from colliding with an adjacent object due to vibration during transport. A method,
Install the Bokizu member (201,202,301,302) on the outer circumference of the concrete pole, coercive Chi the distance between the neighbor and the concrete column above a predetermined minimum distance,
The scratch-proof member is
A method for transporting a concrete column, characterized by being a soft ring-shaped member having a radial width equal to or greater than the predetermined minimum interval . The scratch-proof member (301, 302)
4. The method for transporting a concrete column according to claim 3 , wherein the method is formed so as to be capable of being divided and connected at at least one point in the circumferential direction.

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