JP2015172303A - Antenna support frame and installation method for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an antenna support frame capable of being inexpensively installed in a short period of time, and an installation method for the same.SOLUTION: An antenna support frame 100 includes: a foundation girder 110 which is fixedly supported by pressing members 114a and 116a within a cage 10; a support column 120 which has a bottom attached to the foundation girder 110 and which is erected in the cage 10; and a bracing member 130 that is fixed to an upper end of the cage 10 to hold the support column 120.

Description

  The present invention relates to an antenna support frame and an installation method thereof.

  Temporary antennas may be installed in a short period of time, such as installing mobile phone antennas at outdoor event venues where many people gather.

  When an antenna or the like is installed at a high place in order to ensure a good communication state, a method of constructing a tower-like structure such as a steel tower and attaching the antenna or the like to the tower is used.

  Several methods for installing such tower-like structures have been proposed.

  In Patent Document 1, a steel foundation frame inserted in a vertical hole established at a place where a tower is desired to be erected, a main column inserted perpendicularly to the steel foundation frame, a vertical hole and a steel foundation frame, There is disclosed a steel tower composed of fixing means such as sand and concrete for fixing a steel foundation frame and a main pillar.

  Patent Document 2 discloses a method for constructing a support column that is detachably erected on an installation surface, in which a sheath tube having an openable and closable lid is pivotally supported at the upper end is embedded in the installation surface, and a bolt is mounted from the bottom surface of the support column. And the bolt is screwed into the female screw portion of the insert body having a female screw portion formed thereon, and the insert body is attached to the bottom surface of the support column, and the insert body is attached to the sheath tube. There has been disclosed a method for constructing a support column, wherein the support column is erected on the installation surface by being inserted.

JP 2001-234646 A JP 2011-241671 A

  However, when installing the steel tower described in Patent Document 1, it is necessary to dig a vertical hole in the ground, which requires time and cost. Moreover, although the support | pillar construction method of patent document 2 can perform the exchange operation | work of a support | pillar efficiently, it is necessary to embed a sheath pipe in an installation surface (ground), and similarly time and cost are required.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an antenna support frame that can be installed in a short period of time and at a low cost, and an installation method thereof.

In order to achieve the above object, an antenna support frame according to the first aspect of the present invention includes:
A foundation girder fixedly supported by a pressing member inside the cage;
A support column that is attached to the foundation beam and is erected on the cage;
A brace member fixed to the upper end of the car and sandwiching the support column;
Is provided.

  The car is provided in an aerial work vehicle, for example.

The installation method of the antenna support frame according to the second aspect of the present invention is as follows:
A process of fixing and supporting the foundation girder by a pressing member inside the cage;
Attaching the bottom of the support column to the foundation girder and standing the support column on the car;
Fixing the bracing member to the upper end of the car and sandwiching the support column;
including.

  The car is provided in an aerial work vehicle, for example.

  ADVANTAGE OF THE INVENTION According to this invention, the antenna support stand which can be installed in a short period of time and low cost, and its installation method can be provided.

It is the perspective view which represented typically the state which attached the antenna support stand which is one Embodiment of this invention to the cage | basket | car. It is the side view which represented typically the state which attached the antenna support stand to the cage | basket | car. (A) is the top view which represented typically the state which fixed the support pillar with the support pillar fixing clamp of a bracing member, (b) is the fixing state to the handrail by the handrail fixing clamp of a bracing member. It is the side view typically expressed.

  Hereinafter, embodiments of the present invention will be described in detail. First, an antenna support frame 100 according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, an antenna support base 100 according to an embodiment of the present invention includes a base girder 110 fixedly supported inside a car 10 provided in an aerial work vehicle, and a bottom part attached to the base girder 110. A support column 120 erected on the cage 10, and a bracing member 130 that is fixed to the handrail 16 at the upper end of the cage 10 and clamps the support column 120.

  The antenna support frame 100 according to the embodiment of the present invention is assembled in a car 10 attached to the tip of a boom 1 of an aerial work vehicle (not shown) in order to install the antenna 2 at a high place for a short period of time. . The car 10 can be raised by a boom operation of an aerial work vehicle, and the antenna support frame 100 can be pulled up to a predetermined height. The antenna 2 is attached to the upper part of the support column 120 of the antenna support base 100 via the attachment 3.

  As shown in FIG. 1, the foundation beam 110 is fixed to the bottom surface 14 inside the car 10 and plays a role of supporting the support column 120. As shown in FIGS. 1 and 2, the base beam 110 includes two main beams 112, two long-side support members 114 spanned orthogonally to the main beam 112, and the long-side direction as well. And two short-side support members 116 that are stretched over the main beam 112 inside the support member 114.

  The main girder 112 is made of C-shaped steel and is a member that fixes and supports the long-side direction support material 114 and the short-side direction support material 116, and is in contact with the bottom surface 14 inside the car 10. A long-side support material 114 is fixed near both ends of the upper surface of the main girder 112, and a short-side support material 116 is fixed inside thereof. Further inside, a pair of holes (not shown) through which the bolts 126 pass is formed so that the base plate 128 of the support column 120 is fixed.

  As shown in FIGS. 1 and 2, the long-side support member 114 is made of L-shaped steel, and is fixed in the vicinity of both ends of the upper surface of the main beam 112 perpendicular to the main beam 112 via bolts 114 c. . In the vicinity of both ends of the long-side support member 114, a pressing member 114a is provided via a bolt 114b. The pressing member 114 a is a member that fixes and supports the long side direction of the antenna support gantry 100 in the car 10. The pressing member 114 a moves outward by screwing the bolt 114 b, contacts the inner side surface 12 of the car 10, and receives the antenna support gantry 100. The long side direction of is fixed.

  The short side direction support member 116 is made of L-shaped steel, and is fixed to the upper surface of the main girder 112 perpendicularly to the main girder 112 via a bolt 116c. At both ends of the short-side direction support material 116, pressing members 116a are provided via bolts 116b. The pressing member 116a is a member that fixes and supports the short side direction of the antenna support gantry 100 in the car 10, moves outward by screwing the bolt 116b, contacts the inner side surface 12 of the car 10, and the antenna support gantry 100. The short side direction is fixed.

  Thus, the pressing member 114a provided on the long-side direction support member 114 and the pressing member 116a provided on the short-side direction support material 116 allow the base girder 110 to move between the long side and the short side of the inner surface of the car 10. It is fixed in two directions in two directions and firmly fixed in the car 10.

  The support column 120 is a member that supports the antenna 2, and as shown in FIGS. 1 and 2, a rectangular base plate 128 attached to the two main girders 112 via four bolts 126, and a base plate 128. A columnar column 124 welded to the substantially central portion of the column, and four rib plates 122 welded to the lower end of the column 124 and the base plate 128. The base plate 128 provided at the bottom of the support column 120 is fixed to the bottom surface 14 inside the car 10 via the main beam 112 of the base beam 110, so that the support column 120 faces upward from the inside of the car 10. And stable.

  The bracing member 130 is a member that maintains a state in which the support column 120 is erected vertically. As shown in FIGS. 1 and 3, the bracing member 130 includes two support beams 132 that are stretched perpendicularly to the handrail 16 in the long side direction of the car 10, and a bolt at a substantially central portion of the support beam 132. A pair of support column fixing clamps 136 attached via 132a, and four handrail fixing clamps 134 attached via bolts 132b in the vicinity of both ends of the support beam 132 are provided.

  The support beam 132 is made of L-shaped steel, and four holes (not shown) for passing the bolt 132a are formed in the vicinity of both ends thereof, and the bolt 132b is passed in the vicinity of the substantially central portion. These two holes (not shown) are formed.

  The support column fixing clamp 136 is fixed to the support beam 132 and a semicircular clamping portion 136a for clamping the support column 124 of the support column 120, a flange 136e for fixing the pair of support column fixing clamps 136 to each other, and the support beam 132. And a rib plate 136c for connecting the plate 136b and the sandwiching part 136a to each other. The flange 136e is formed with a hole (not shown) for allowing the bolt 136d to pass through. The pair of support column fixing clamps 136 are inserted via the bolt 136d in a state where the clamping unit 136a sandwiches the column 124. It is fixed (FIG. 3A). Two holes (not shown) for allowing the bolts 132a to pass therethrough are formed in the plate 136b, and the support beam 132 is fixed to the plate 136b via the bolts 132a. The upper end portion of the rib plate 136c is welded to the bottom surface of the plate 136b, and the side end portion of the rib plate 136c is welded to the substantially central portion on the outer side of the semicircular shape of the clamping portion 136a.

  The handrail fixing clamp 134 is a rectangular member, and has two holes (not shown) for allowing the bolts 132b to pass therethrough. The handrail 16 at the upper end portion of the car 10 is sandwiched between the handrail fixing clamp 134 and the support beam 132 (FIG. 3B), and the bolt 132 b is screwed to fix the bracing member 130 to the handrail 16.

  In addition, although the material of each member of the antenna support base 100 of this embodiment is stainless steel, you may use the aluminum which can ensure predetermined intensity | strength, the coated plain steel, etc.

  Next, an installation method of the antenna support base 100 according to the embodiment of the present invention will be described with reference to the drawings.

An installation method of the antenna support base 100 according to the embodiment of the present invention is as follows.
(A) a step of fixing and supporting the base beam 110 inside the car 10;
(B) attaching the bottom of the support column 120 to the foundation beam 110 and standing the support column 120 on the car 10;
(C) fixing the bracing member 130 to the upper end of the car 10 and sandwiching the support pillar 120;
including.

  The step (A) will be described. In the step (A), the base beam 110 is fixedly supported on the bottom surface 14 inside the car 10. The base girder 110 is divided into two in the four directions of the long side and the short side of the inner surface of the car 10 by a pressing member 114a provided on the long side direction support material 114 and a pressing member 116a provided on the short side direction support material 116. Each part is fixed and firmly fixed in the car 10. Details of the base beam 110, a fixing method, and the like are the same as described above.

  Next, the said process (B) is demonstrated. In the step (B), the bottom of the support column 120 is attached to the base beam 110 and the support column 120 is erected on the car 10. Details of the support column 120, a fixing method, and the like are the same as described above.

  Next, the said process (C) is demonstrated. In the step (C), the bracing member 130 is fixed to the handrail 16 at the upper end of the car 10 and the support column 120 is sandwiched. Details of the bracing member 130, a fixing method to the handrail 16, a sandwiching method of the support column 120, and the like are the same as described above.

  In the installation method according to the present embodiment, in order to install the antenna 2 at a high place for a short period of time, as described above, the antenna support frame is mounted in the car 10 attached to the tip of the boom 1 of the work place at a high place (not shown). 100 is assembled and pulled up by boom operation of an aerial work platform. The antenna 2 is attached to the upper part of the support column 120 of the antenna support base 100 via the attachment 3.

  As described above, according to the antenna support frame 100 according to the embodiment of the present invention, the antenna support frame 100 is installed in the car 10 and the antenna 2 is mounted on the support column 120 for temporary antenna installation at a high place. The car 10 can be simply mounted by pulling it up to a high place with an aerial work vehicle. Conventionally, when installing an antenna temporarily at a high place, it has been necessary to embed the foundation in the ground, erect a tower-like structure, and mount the antenna, so that installation takes time and costs. It was. On the other hand, in the antenna support base 100 according to the embodiment of the present invention, it is possible to perform temporary antenna installation at a high place in a short period of time and at a low cost.

  In the antenna support frame 100 according to the embodiment of the present invention, the foundation beam 110 is firmly fixed in the four directions on the inner surface of the car 10 by the pressing member 114a and the pressing member 116a. In addition, the base plate 128 of the support column 120 is firmly fixed to the base beam 110 via four bolts 126. Furthermore, the anti-vibration member 130 fixed to the handrail 16 firmly holds the support column 120 by the holding portion 136a. As described above, since the support column 120 is firmly and stably fixed to the car 10 in a vertically standing state, the antenna support frame 100 can be used safely at a high place even in a strong wind.

  Further, the antenna support base 100 according to the embodiment of the present invention can be easily disassembled after use, and can be reused when temporary antenna installation at a high place is required. Thus, since each member can be reused, the installation cost can be reduced.

  In addition, since the antenna support base 100 according to the embodiment of the present invention fixes and supports the base girder 110 on the inner surface of the car 10 by the pressing member 114a and the pressing member 116a, it can be used for various cars, work tables, and the like having different dimensions. It is.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation and application are possible. For example, in this embodiment, although the form which attaches the antenna 2 to the support pillar 120 was demonstrated, you may attach a disaster prevention radio | wireless, a speaker, a camera, illumination, a lightning rod, etc., for example. If it is installed in a high place in a short period of time, it can be installed as appropriate.

  Moreover, in this embodiment, as shown in FIG. 1, although the form which makes the support pillar 120 stand upright in the approximate center part of the bottom face 14 of the cage | basket | car 10 was demonstrated, the operation panel is provided in the cage | basket | car 10, for example. In the case where the support pillar 120 cannot be erected substantially at the center, for example, a long hole is formed in the upper surface of the main girder 112 and the position through which the bolt 126 is passed is adjusted, thereby the bottom surface 14 of the car 10. The support pillar 120 may be erected with a shift from the substantially central portion.

  Further, in the present embodiment, as shown in FIG. 1, the form in which the foundation beam 110 is fixedly supported on the inner surface of the car 10 by the pressing member 114 a and the pressing member 116 a has been described. Any mechanism can be used as long as it can be fixedly supported. For example, a stretchable stretching rod may be used.

  Moreover, in this embodiment, as shown in FIG. 1, although the base plate 128 of the support pillar 120 demonstrated the form fixed to the base beam 110 via the four volt | bolts 126, the length of the support pillar 120, In view of the weight of the object attached to the support column 120, the size of the base plate 128, and the like, the fixing points by the bolts 126 may be six or more.

  Moreover, in this embodiment, as shown in FIG. 1, although the form which fixes the base beam 110 to the inner surface of the cage | basket | car 10 with a total of four pressing members 116a was demonstrated, the magnitude | size of a cage | basket, the wind speed at the time of installation In view of the above, a total of six or more pressing members 116a may be provided. Similarly, a total of six or more pressing members 114a may be provided.

  Further, in the present embodiment, as shown in FIG. 1, the support beam 132 of the bracing member 130 is stretched across the handrail 16 only in the long side direction of the car 10 and attached in one direction of the handrail 16. Although the form has been described, in consideration of the size of the car, the wind speed at the time of installation, and the like, for example, the bracing member 130 is crossed in a cross shape so as to be orthogonal to the handrails 16 in both the long side direction and the short side direction. You may attach to 16 two directions.

  In the present embodiment, the boom-type form using an aerial work vehicle has been described as a method for raising and lowering the car 10. However, as a raising / lowering method, a vertical raising / lowering method, etc. It is appropriately selected depending on the installation location of the antenna and the like.

DESCRIPTION OF SYMBOLS 10 Car 12 Inner side surface 14 Bottom surface 16 Handrail 100 Antenna support stand 110 Base girder 112 Main girder 114 Long side direction support material 114a Pushing member 114b Bolt 114c Short side direction support material 116a Pushing member 116b Bolt 116c Bolt 120 Support pillar 122 Rib Plate 124 Post 126 Bolt 128 Base plate 130 Anti-vibration member 132 Support beam 132a Bolt 132b Bolt 134 Handrail fixing clamp 136 Support column fixing clamp 136a Nipping part 136b Plate 136c Rib plate 136d Bolt 136e Flange

Claims (4)

A foundation girder fixedly supported by a pressing member inside the cage;
A support column that is attached to the foundation beam and is erected on the cage;
A brace member fixed to the upper end of the car and sandwiching the support column;
An antenna support gantry comprising: The car is provided in an aerial work vehicle,
The antenna support frame according to claim 1. A process of fixing and supporting the foundation girder by a pressing member inside the cage;
Attaching the bottom of the support column to the foundation girder and standing the support column on the car;
Fixing the bracing member to the upper end of the car and sandwiching the support column;
Installation method of antenna support frame including The car is provided in an aerial work vehicle,
The installation method according to claim 3.

Images