JPH01298802A - Method for constructing antenna pole on rooftop of building - Google Patents

Abstract

PURPOSE:To construct a parabolic antenna onto a parapet with a step difference by placing the 1st and 2nd concrete blocks onto a slab face in the inside of the parapet, placing an antenna pole seat while bridging over them, supporting a middle part of an antenna pole and inserting its root to a metal placed on the slab. CONSTITUTION:Two concrete blocks 10, 11 are placed side by side on the slab face 2 in the inside of a straight line part or a corner part of the parapet 1 and the parapet 1 and the slab face 2 are fixed and the antenna pole seat 20 is fixed to the concrete blocks 10, 11 while bridging over them. A pipe connecting plate 50 is supported by two support metals 40, 41 fixed to the parapet 1, the parabolic antenna pole P whose base is placed to the slab is inserted through the antenna pole seat 20 and the pipe connecting plate 50 and the parabolic antenna is tightened by tightening metallic fixtures 54, 55 of the pipe connecting plate 50. Thus, the parabolic antenna pole P is easily fitted to the parapet 1 with a step difference on the rooftop of a building.

Description

[Detailed Description of the Invention] [Industrial Application Field] When constructing a parabolic antenna on the roof of a building, etc., the present invention involves placing two concrete blocks on the slab surface inside the parapet, and placing the antenna pole pedestal astride the concrete blocks. are placed and each pivoted, and also on the straight part of the parapet.
This is a construction method for building an antenna pole on the roof of a building, which allows the antenna pole to be constructed even in a part of a corner, no matter how the corner angle changes.

[Conventional technology] Conventionally, a parabolic antenna was installed by actually measuring the structure of the installation location of the parabolic antenna, the surrounding conditions, etc., and in the case of a parapet, measuring the angles of the four corners in detail, fabricating a pedestal based on a blueprint, and installing the parabolic antenna. was. Therefore, it is difficult to install parabolic antennas without advanced technology and specialized knowledge.

In addition, the BS broadcasting satellite is in a geostationary orbit above the equator at 110 degrees east longitude, and in Tokyo it is above the southwest force with an elevation angle of 37.931.
This means that the radio waves arrive from the sky at an elevation angle of 30 to 40 degrees over the southwest force anywhere in Japan, and there are no obstacles in the way, such as buildings, trees, or overhead power lines. It is necessary to determine the installation location at a convenient location for wiring cables to the indoor receiver.

In Japanese patent application No. 59-251980, parapets,
Fix two supporting metal fittings to a supporting member such as an iron fence, and
One antenna pedestal is strung between two support fittings, and the support members such as parapets, iron fences, etc. and the antenna pedestal are assembled and fixed. ・If the parabolic antenna is large, it is difficult to assemble the support members such as parapets, iron fences, etc. In order to cope with the irregular strong wind force that is applied between the support member and the antenna pedestal, the attached state must be firmly maintained.

The antenna must be a parabolic antenna and must be designed to handle wind speeds of 40 m, and the slab surface on the roof of the building is fully waterproofed, so drilling a hole in the slab surface to install the antenna may result in a water leakage accident later on. Due to this risk, it is necessary to avoid drilling into the slab surface when constructing the pole.

As the uses of antenna poles have diversified, the outer diameter of antenna poles has increased from 48.6mmφ to 60.5mmφ to 76mmφ.
3mmφ, 89. There are poles up to ImmΦ, and the antenna pole establishment device must be able to establish these poles.

On the roof of a building, there is a protrusion, or parapet, that rises around the four sides of the slab surface. The height of this raised parapet is not constant, ranging from a high of 1.200 mm to a low of about 200 mm. In order to establish a parabolic antenna on these parapets with different heights, it is inconvenient that several sets of support members of different sizes must be prepared.

[Means for Solving the Problems] The present invention is based on (1) placing first and second concrete blocks on the slab surface inside the +1 rose bed, and installing an antenna pole by straddling these first and second concrete blocks. The pedestal is placed and pivoted, and the pipe connection plate that supports the middle part of the antenna pole is attached to the parapet with two supporting metal fittings, and the middle part of the antenna pole is attached to the pipe connection plate by a tightening fitting provided on the pipe connection plate. This is a construction method for establishing an antenna pole on a building rooftop, characterized in that the antenna pole is fixed and established by fitting it into an antenna pole establishment metal fitting having a rising surface with the base of the antenna pole placed on a slab.

(2) Two concrete blocks placed on the slab surface inside the parapet have three bolts protruding from each, and the central bolt is the central bolt installed at both ends of the antenna pole pedestal. The shaft is fitted into the hole, and the bolts on both sides are engaged with the arcuate holes drilled in the antenna pole pedestal, facing the arcuate outer circumferential surface of the antenna pole pedestal and the center bolt, respectively. The antenna pole pedestal is provided with cut holes and tightening fittings for connecting poles of different diameters, and one end is pivoted to two supporting hardware attached to the parapet, and the other end of the pole is attached to a pipe connection plate. This is a construction method for building an antenna pole on a building rooftop, which is characterized by supporting and fixing the antenna pole using a diameter pole connection cut hole, a fastening fitting, a pipe connection plate, and an antenna pole setting metal fitting.

[Function] When attaching a parabolic antenna pole to a parapet on the roof of a building that has a difference in height, the present invention is capable of fixing two concrete blocks to the slab surface by lining them up on the slab surface inside a straight part or a corner part of the parapet. The antenna pole pedestal is bridged and pivoted to these concrete blocks, the pipe connection plate is supported by two supporting hardware fixed to the parapet, and the parabolic antenna pole with its base placed on the slab is attached to the antenna pole pedestal. Then, the parabolic antenna is fixed by inserting the pipe connection plate and tightening it with the tightening fitting of the pipe connection plate.

[Example] - Figure 1 A, Figure 1 Entrance, and Figure 1 C show the required spacing between the inner wall surface 1a of the low-height linear parapet 1 and the upper surface of the slab 2, and the first concrete The steel frame of the block 1O and the steel frame of the second concrete block 11 are locked with anchor bolts protruding from the inner wall surface 1a of the parapet 1, and the space between these concrete blocks, the inner wall surface 1a of the parapet 1, and the slab surface are connected. A state in which the antenna pole pedestal 20 is fixed to the first concrete block 10 and the second concrete block 11 on the bridge is shown after filling and adhering the gap with mortar. First concrete block 1
0 and the second concrete block l] are bolts 10b on both sides with the center bolt lOa in between, and bolts Ilb and IIc on both sides with the center bolt 11a in between.
Holes 21 and 22 are provided at both ends of the antenna pole pedestal 20 to insert the bolts IOa and Ila, and an arcuate surface 21a is formed on the outer lower surface of the antenna pole pedestal 20 with the hole 21 as the center. An arcuate surface 22a is formed on the outer lower surface of the antenna pole pedestal 20 with 22 as the center. Also, the arcuate surfaces 21a and 22 are centered around the holes 2] and 22.
Arc holes 21b and 22b are provided on the opposite side of a, respectively.

Place the antenna pole pedestal 20 on the first concrete block 1
0 and the second concrete block 11, insert the holes 21b and 22b of the antenna pole pedestal 20 into the center bolt 10a of the first concrete block 10 and the center bolt lla of the second concrete block 11, respectively. One outer bolt Job of the block 10 is brought into contact with the arcuate surface 21a of the antenna pole pedestal 20.

The other outer bolt I of the first concrete block 10
oc into the arcuate hole 21b of the antenna pole pedestal 20, one outer bolt Ilb of the second concrete block 10 is brought into contact with the arcuate surface 22a of the antenna pole pedestal 20, and the other inner bolt Ilb of the second concrete block 10 is inserted into the arcuate hole 21b of the antenna pole pedestal 20. After inserting the llc into the circular arc hole 22b of the antenna pole pedestal 20, insert the support plate 3 from above the antenna pole pedestal 20.
0 through the bolts IOa, IOb, IOc and assemble with nuts, and attach the support plate 31 to the bolt 11a.

11b and IIc and assemble with nuts.

Reference numerals 40 and 41 indicate U-shaped support hardware that is placed on the entrance surface of the parapet 1, and support hardware 40 and 4 are attached to the inner and outer surfaces of the parapet 1 through seat plates.
Bolts 40a and 41a for fixing 1 are screwed.

Reference numeral 50 denotes a pipe connecting plate that supports the antenna pole, and is supported in an articulated manner by the supporting metal fittings 40 and 41 through connecting members 51 and 52. The pipe connection plate 50 has a fixed seat 5 having a V-shaped opening 53 for holding antenna poles of different diameters.
4 and a moving pressure member 56 having a V-shaped volume opening 55. This opening is expanded or contracted with a bolt and nut to adjust the size of the V-shaped volume opening to create antenna poles of different diameters. It is designed so that it can be held in place (Fig. 1 G, Fig. 1 H, Fig. 1 S).

Figure 1 Nu and Figure 1 Le are 9 of the angle of the parapet corner.
The state where the parabolic antenna is installed at the 0" point and the +20° point is shown. In other words, the angle of the parapet corner is 9
Whether it is 0° or 120°, place an imaginary straight line connecting the holes 21 and 22 of the antenna pole pedestal at right angles to the bisector of the corner angle, and place the U-shaped supports 40 and 41 at approximately the same distance from the corner of the parapet 1. The pole can be erected by fixing it to the entrance surface of the Prior to this, the first concrete block IO and the second concrete block II are placed equidistantly on both sides of the corners of the inner wall surface 1a of the parapet 1 by fixing anchor bolts with mortar.

First and second concrete blocks 1 as shown in Figure 1
When the height of the parapet l is lower than the height of 0.11, and the outer lower edge of the slab 2 is a draining projection, connecting fittings 40a, 41 bent in an L shape are attached to the supporting fittings 40.41.
a, respectively, and these connecting fittings 40a, 41a
The lower end bent portions 40b and 41b of the parapet are connected to the protruding edge 1b of the parapet.
In the first step, the bases of the connecting members 51 and 52 are pivoted to the upper ends of the connecting fittings 40a and 41a.

As mentioned above, the pipe connecting plate 50 is screwed to the tip of the connecting member 51, 52, and the pipe connecting plate 50 is fixed to the pipe connecting plate 50.
The moving dust 56 formed with the fixed forming opening 53 and the forming opening 55 facing the fixed forming opening 53 is removed by the bolt 57.
．． 57, it is connected so that it can be adjusted with nuts 58 and 58 to sandwich the parabolic antenna.

Therefore, the outer diameter is 48.6mmφ to 60.5mmφ.

An antenna pole P of 76.3 mmΦ and 89.1 mmΦ can be established on the pipe connection plate 54.

Figure 2 A, Figure 2 Opening, Figure 2 C, Figure 2 2, and Figure 2 E show a base plate made of hardware for establishing an antenna pole. In the drawings, reference numeral 60 denotes a circular base plate provided with a chevron-shaped cross-shaped guide plate 62 with an apex 61 formed in the center, and the bottom surface of this base plate 60 is covered with a strong rubber Matsutoro 3 having waterproofness and elasticity. Place it on the slab.

The configuration of the base plate 60 is as shown in Fig. 2, which is raised from points △ and B on both the left and right edges of the rectangular steel plate P toward the center line (folding line) Y at a certain angle, and intersects on the center line Y. Cut off the upper side (the part separated by the broken line and solid line) and make a chevron piece C.
Along with forming A.

At the intersection of the fold line Bend it at a right angle, then bend both sides E and E' of the cutout part inward at 90 degrees on the fold line X, and then weld the two pieces back to back to a circular plate or square bottom plate 60a. Form.

Figures 3A, 3C, 3C, and 3M are examples in which an antenna pole is installed on the roof of a high parapet. In other words, the antenna pole 1 is sandwiched between a high linear parapet l and the first concrete block 10 and the second concrete block 11 are attached to the side wall and slab surface using anchor bolts and mortar. Two supporting metal fittings 40 and 41 are respectively fixed to the parapet L across the top surface of the parapet L.
This is a case in which the bases of the connecting members 51 and 52 are screwed to the top plate, and the pipe connecting plate 50 is fixed to the tips of the connecting members 51 and 52. 3C and 3m; the parapet L is 90cm in the same way as explained in FIGS. 1N and 1L above.
In the case where the parapet 1 is bent by 120', antenna poles P are established inside each corner. The assembly method is the same as that described in FIGS. 1A to 1N above.

Figures 4A, 4B, and 4C show examples in which the antenna pole is installed at a location with a low parapet above the roof without a window or cut. That is, two supporting hardware 40
This is a case where the protruding arms 70 and 71 are screwed to the side surfaces of the pipes and 41, respectively, and the connecting members 51 and 52 of the tubing connection plate 50 are screwed to the protruding arms 70 and 71.

Figure 5 A and Figure 5 mouth are 5llF on the parabolic antenna.
, Ul(F, V) This shows an embodiment equipped with an antenna that receives each of the HF radio waves. In other words, Fig. 5A shows a parabolic antenna A installed in the middle of the antenna pole P, and a parabolic antenna A that receives each of the VHF and UHF radio waves at its tip. When equipped with antenna A2 that receives radio waves, the opening in Figure 5 has a vibrator with an outer diameter of 60.5 mmΦ, a vibrator with an outer diameter of 76.3 mmΦ, or a vibrator with an outer diameter of 89 mm at the base.
．． Establish a vibe P+ with a diameter of 1 mm, insert a vibe P2 with an outer diameter of 48.6 mm in this vibe, and
Attach parabolic antenna A to , and connect VH to vibe P2.
The case is shown in which an antenna A2 that receives F and UHF radio waves is installed. When fixing the base vibe P and the tip vibe P2 at the mouth in Fig. 5, use a connecting device C such as a coupling or flange to connect the base vibe P and the tip vibe P2 with this flange. Tighten firmly.

Construction method As described above, the present invention provides a first concrete block and a second concrete block on the inner wall and slab surface of each of the low parapet, high parapet, straight parapet, and parapet bent at an angle. are fixed with anchor bolts and mortar, and the center bolt planted in the first and second concrete blocks is inserted into the holes at both ends of the antenna pole pedestal 20, and the first and second concrete blocks are fixed with the center bolt in between. After setting bolts on the block, bringing the outer bolt into contact with the arc surface 21a of the antenna pole pedestal 20, and inserting the inner bolt into the arc hole 22b of the antenna pole pedestal 20, the support plate 30 is inserted from above the antenna pole pedestal 20. the bolt 10a
, 10b.

Cover and fix on 10c. Do the same work with the center bolt lla of the second concrete block 11, and the bolts l on both sides of it.
Go to Ib and Ilc and fix the first and second concrete blocks, parapet and antenna pole pedestal.

Even when the parapet is bent from 180 degrees in a straight line to 906 degrees, the distance between the center bolts of the first and second concrete blocks on the inside of the bend angle is adjusted to the distance between the holes at both ends of the antenna pole pedestal. If you put it in position,
It can be installed on a straight part of a parapet, even if the angle of a part of the corner changes in various ways. However, as parabolic antennas become larger for joint reception, etc., the wind pressure they receive becomes larger. In order to withstand this large load, the antenna pole is fixed to a nearby supporting hardware using a connecting member. In other words, the base of the antenna pole is securely fixed with the first and second concrete blocks, and the parabolic antenna is fixed to the parapet by the support metal fittings and connecting metal fittings that secure the large load of the parabolic antenna above the middle part of the antenna pole. It can disperse and support received wind pressure.

The first and second concrete blocks are left at both ends, and the central part is made hollow without pouring concrete with a part of the iron core exposed, and anchor bolts embedded in the structure or Insert the bolts attached to the arms of the supporting hardware attached to the parapet into the holes drilled in the steel frame of the concrete block to join them together, then apply enough mortar between the bottom of the concrete block and the slab surface, and then Mortar is filled on the face plate to ensure close contact between the concrete block and the parapet surface.

[Effect] As described above, in the present invention, bolts are provided protruding from each of two concrete blocks, and the distance between the bolts protruding from these two concrete blocks is determined by the distance between the bolt holes made at both ends of the antenna pole pedestal. By holding the two concrete blocks equally to the inside wall of the parapet and the top surface of the slab with anchor bolts, mortar, etc., the placement of the two concrete blocks can be adjusted to the straight part of the parapet, the bend It can be easily constructed by touching both sides of the antenna pole, and the position of the antenna pole can be easily determined by fitting the bolts of two concrete blocks into the holes of the antenna pole base. Also, install two supporting hardware on the top of the parapet, connect these supporting hardware and the pipe connection plate with a connecting member, and connect the lower end and middle part of the antenna pole with two concrete blocks and pipes. By supporting and fixing with the connection plate, even if the parabolic antenna attached to the antenna pole receives a large wind pressure load, there will be no V at the tip from the mounting position of the parabolic antenna.
Even if a conventional antenna such as HF or LIHF is installed, the load will be shared and supported by the two concrete blocks and the pipe connection plate, reducing the burden on the parapet. In addition, when a rubber mat and a root board, which is a hardware for establishing an antenna pole with an apex in the center, are placed on the slab surface and the antenna pole is inserted through the cut at the base of the antenna pole, the base plate has a slope from the outside to the center. It hits the slope surface of the four upright edges that stand up on the surface with , and stops stably on a line centered on the apex. Also, even if a thin vibrator is inserted into the inner diameter of a thick vibrator, the center of the antenna pole will not deviate from the center of the base plate because the sloped surface will keep the center of the vibrator at -.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the invention. Figure 1A is a front view of the device installed on a straight line when the parapet is low, Figure 1 is a bottom view, Figure 1C is a side view, Figure 1m is a plan view of the antenna pole base, Figure 1 E is a front view, Fig. 1 is a side view, Fig. 1 G is an enlarged plan view of the tubing connection plate, Fig. 1 H is a front view, Fig. 1 is a side view, Fig. 1 is N is a parapet. A plan view of the present invention when installed at a corner with an angle of 90°,
Figure 1 (Le) is a plan view of the present invention when installed at a corner of the parapet at an angle of +20°, Figure 2 (A) is an enlarged plan view of the base plate, Figure 2 (2) is a front view, and Figure 2 (C) is a side view. , 2nd m=
Figure 2 is a developed view of the steel plate constituting the base plate, and Figure 2E is a plan view of the steel plate in its folded state. Figure 3A is a plan view of the present invention implemented on a high parapet;
The entrance in Figure 3 is the front view, and the angle in Figure 3 C is the angle 9 of the high parapet.
3rd plan view of the present invention when installed at the corner of 0@
m = is a plan view of the present invention implemented at a 120° corner of a high parapet, Figure 4 A is a front view of a low parapet where the present invention is implemented at a location from the rooftop with no windows and no cuts; The figure entrance is a plan view, Figure 4 C is a side view, and Figure 5 A is a SHF and UHF using a low parapet on the roof of the building.
, V) A side view of the present invention when equipped with an antenna for receiving each IF radio wave, Figure 5. The mouth connects two antenna poles using a low parapet. 5) IF, UHF, V
FIG. 2 is a side view of the present invention when HF radio wave receiving antennas and a BS broadcast receiving parabolic antenna are installed. 1-m-parapet 2-m-slab surface 10--first concrete block 11--second concrete block 20--antenna pole pedestal P ---antenna pole 40.41--support hardware 50--pipe connection Plate 54.55--Tightening metal fitting 60--Antenna pole establishment metal fitting

Claims (2)

[Claims] (1) First and second concrete blocks are placed on the slab surface inside the parapet, and the antenna pole pedestal is placed and pivoted across these first and second concrete blocks, and the antenna pole is attached to the middle part of the antenna pole. The pipe connection plate that supports the pipe connection plate was attached to the parapet with two supporting metal fittings, the middle part of the antenna pole was fixed by a tightening fitting provided on the pipe connection plate, and the base of the antenna pole was placed on the slab. A construction method for establishing an antenna pole on a building rooftop, which is characterized in that the antenna pole is installed by fitting it into an antenna pole having a rising surface. (2) Two concrete blocks placed on the slab surface inside the parapet have three bolts protruding from each, and the central bolt is the central bolt installed at both ends of the antenna pole pedestal. The shaft is fitted into the hole, and the bolts on both sides are engaged with the arcuate holes drilled in the antenna pole pedestal, facing the arcuate outer circumferential surface of the antenna pole pedestal and the center bolt, respectively. , the antenna pole pedestal is provided with cut holes and tightening fittings for connecting poles of different diameters, one end of which is pivoted to two supporting hardware attached to the parapet, and the other end of the pole is attached to the pipe connection plate. A building rooftop antenna pole construction method characterized by supporting and fixing an antenna pole using a cut hole for pole connection, a fastening metal fitting, a pipe connection plate, and an antenna pole establishment metal fitting.