Antenna mounting bracket

Abstract

First, the pair of telescopic arms can be easily retracted even when extended, and second, it improves workability by eliminating the need for ladders, stepladders, aerial work platforms, etc. that workers need to climb to perform tasks such as adjusting the antenna. [Solution] The device comprises a pair of upper and lower telescopic arms 11, 11, which are installed at intervals in the vertical direction on a support 3 on which a satellite communication antenna 2 is installed, and which have a fixed arm 11a fixed to the support 3 and a movable arm 11b that slides relative to the fixed arm 11a, and an antenna support member 13 supported at the tip of each of the pair of upper and lower telescopic arms 11, 11, to which the satellite communication antenna 2 is attached and which is provided with a slide handle 14 for an operator to grasp when sliding the movable arm 11b.

Description

[Technical Field]

[0001] The present invention relates to an antenna mounting bracket for mounting an antenna such as an antenna for satellite communication, and more particularly to an antenna mounting bracket with a sliding function. [Background technology]

[0002] As an antenna mounting bracket, for example, a bracket has been proposed that supports an antenna support member (referred to as a "mast mounting pipe" in Patent Document 1) that supports an antenna using a pair of upper and lower telescopic arms (referred to as a "connector" in Patent Document 1) that are overhanging members (see, for example, Patent Document 1). An example of this antenna mounting bracket has also been proposed in which the pair of upper and lower telescopic arms are configured to be telescopic. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-299928 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the antenna mounting bracket of Patent Document 1, if the distance from the building wall to which the pair of upper and lower telescopic arms are attached is long, even if a ladder or the like is hung on the building wall to perform maintenance such as adjusting or replacing the antenna, the worker may not be able to reach the antenna or the antenna support member that supports it, resulting in poor workability.

[0005] Furthermore, when an antenna is installed at a high altitude using such an antenna mounting bracket and then the antenna is adjusted, a ladder, stepladder, or high-altitude work vehicle is generally required, which also presents a problem of poor workability.

[0006] The present invention has been made with a focus on these problems, and aims to provide an antenna mounting bracket that, first, can be easily retracted even when a pair of telescopic arms are extended, and second, can improve workability by eliminating the need for ladders, stepladders, aerial work platforms, etc. that workers must climb to perform antenna adjustments, etc. [Means for solving the problem]

[0007] In order to solve the above problems, the antenna mounting bracket of the present invention is characterized by comprising a pair of upper and lower telescopic arms each having a fixed arm installed at a distance in the vertical direction of the object to be antenna mounted and a movable arm that slides relative to the fixed arm, and an antenna support member supported at the tip of each of the pair of upper and lower telescopic arms, to which an antenna is attached, and which is provided with a slide handle for an operator to grasp when sliding the movable arm. Furthermore, in the antenna mounting bracket according to the present invention, the fixed arm has a rectangular cross section and has arm connecting bolt holes that pass through the top and bottom sides in the vertical direction, while the movable arm has a rectangular cross section of the same size as the cross section of the fixed arm and has arm slide long holes that extend in the longitudinal direction of the movable arm and pass through the top and bottom sides in the vertical direction, and the lower side of the movable arm is placed on the upper side of the fixed arm, and arm slide connecting bolts are passed through the arm connecting bolt holes of the fixed arm and the arm slide long holes of the movable arm and fastened with nuts to change the overlapping length of the fixed arm and the movable arm, thereby making it possible to change the length of the pair of upper and lower telescopic arms. Furthermore, in the antenna mounting bracket according to the present invention, the slide handle is characterized by comprising: a pair of antenna support member clamping brackets that clamp the antenna support member and are fixed by fastening bolts and nuts; a pair of L-shaped brackets each having a base that is fixed to each of the pair of antenna support member clamping brackets by the fastening bolts that fasten the pair of antenna support member clamping brackets together; and a pair of L-shaped brackets that extend from the base, bending at an almost right angle, and have side plate portions with handle bolt holes on their tip ends; a handle bolt that passes through the handle bolt hole in one side plate portion of the pair of L-shaped brackets and protrudes from the handle bolt hole in the other side plate portion and is fastened with a nut; and a handle collar that is fitted around the handle bolt between the side plate portions of the pair of L-shaped brackets and is held by an operator. The antenna mounting bracket according to the present invention is also characterized in that the antenna support member is a pole-shaped antenna support member with a circular cross section. The antenna mounting bracket according to the present invention is also characterized in that, of the pair of upper and lower telescopic arms, at least the fixed arm constituting the lower telescopic arm is provided with footholds on both the left and right sides for the worker's left and right feet to rest on. Furthermore, the antenna mounting bracket according to the present invention is characterized in that at least two foothold bolt holes penetrating in the left-right direction are provided on both the left and right side surfaces of the fixed arm constituting at least the lower telescopic arm of the pair of upper and lower telescopic arms, and scaffolding bolts are provided in the two foothold bolt holes, respectively, protruding from the side surfaces of the fixed arm to provide footholds on both the left and right sides. In the antenna mounting bracket according to the present invention, the distance between the tip ends of the two scaffolding bolts provided in the two scaffolding bolt holes of the fixing arm is Slide handle It is also characterized by its width being larger than that of the Furthermore, the antenna mounting bracket of the present invention is characterized in that the slide handle is configured to a length that does not exceed the scaffolding bolt even when the movable arm is slid toward the fixed arm to shorten the length of the pair of upper and lower telescopic arms to the maximum. Furthermore, the antenna mounting bracket according to the present invention is characterized in that the antenna support member is provided with bolt holes on the lower side for fixing the movable arms that make up the lower pair of telescopic arms, and is also provided with a plurality of bolt holes spaced apart in the vertical direction on the upper side for fixing the movable arms that make up the upper pair of telescopic arms. [Effects of the Invention]

[0008] In the present invention, the antenna support member, which is supported at the tip of each of the pair of upper and lower telescopic arms and to which the antenna is attached, is provided with a slide handle that the worker can grasp when sliding the movable arm. Therefore, when adjusting the antenna after it has been installed at a high altitude, workers can climb the antenna installation object, such as a pole, and pull the slide handle to perform antenna maintenance work, without using a ladder, stepladder, or high-altitude work vehicle, thereby improving work efficiency. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a front view of the antenna mounting bracket of the embodiment according to the present invention when fully extended. [Figure 2] FIG. 2 is a plan view of the antenna mounting bracket of the embodiment according to the present invention when fully extended. [Figure 3] FIG. 1 is a front view of an antenna mounting bracket according to an embodiment of the present invention when maximally contracted. [Figure 4] FIG. 2 is a plan view of the antenna mounting bracket of the embodiment according to the present invention when maximally contracted. [Figure 5] 1(a) to 1(c) are a plan view, a front view, and a bottom view, respectively, of a fixed arm that constitutes an antenna mounting bracket according to an embodiment of the present invention. [Figure 6] 1(a) to 1(c) are a left side view, a cross-sectional view taken along line EE, and a cross-sectional view taken along line FF, respectively, of a fixed arm that constitutes an antenna mounting bracket according to an embodiment of the present invention. [Figure 7] 2A and 2B are enlarged partial cross-sectional views of part A and part B in FIG. 1, respectively. [Figure 8] 1(a) to 1(f) are a front view, a plan view, a side view, a cross-sectional view along line GG, and a cross-sectional view along line HH of a movable arm that constitutes an antenna mounting bracket according to an embodiment of the present invention. [Figure 9] 1(a) to 1(e) are a plan view, a front view, a bottom view, a cross-sectional view along line II, and a cross-sectional view along line JJ of an antenna support member mounting bracket that constitutes an antenna mounting bracket according to an embodiment of the present invention. [Figure 10] 1(a) to 1(d) are a front view, a plan view, a cross-sectional view along line KK, and a cross-sectional view along line LL of an antenna support member that constitutes an antenna mounting bracket according to an embodiment of the present invention. [Figure 11] 1(a) to 1(c) are a front view, a plan view, and a left side view, respectively, of a slide handle that constitutes an antenna mounting bracket according to an embodiment of the present invention. [Figure 12] FIG. 4 is an enlarged front view of part C in FIG. [Figure 13] FIG. 5 is an enlarged plan view of a portion D in FIG. [Figure 14] 1(a) to 1(d) are a plan view, a front view, a left side view, and a right side view, respectively, of a band metal fitting that constitutes an antenna mounting metal fitting according to an embodiment of the present invention. [Figure 15] FIG. 10 is a front view showing a state in which an operator is gripping a slide handle in a state in which the antenna mounting bracket of the embodiment according to the present invention is fully extended. [Figure 16] FIG. 10 is a front view showing the state in which the slide handle constituting the antenna mounting bracket of the embodiment of the present invention is grasped and contracted, and then the foot is placed on the scaffolding bolt to adjust the antenna, etc. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the antenna mounting bracket according to the present invention will be described with reference to the drawings. Note that the embodiment described below is merely an example of the present invention, and the present invention is not limited to these, and can be modified as appropriate within the scope of the technical concept of the present invention.

[0011] <Configuration of antenna mounting bracket 1 according to the embodiment> 1 to 4, the antenna mounting bracket 1 of the embodiment according to the present invention comprises a pair of upper and lower telescopic arms 11, 11, an antenna support member mounting bracket 12, an antenna support member 13, a slide handle 14, a footing bolt 15, a band bracket 16, etc., and is a bracket for mounting a satellite communication antenna 2 to a pole 3, which is the object on which the antenna is to be installed. In addition to the antenna mounting bracket 1 of the embodiment, a rod-shaped antenna 2' is attached to the pole 3 via a separate band bracket 16' and antenna mounting bracket 17', etc., and the antenna mounting bracket 1 and satellite communication antenna 2 of the embodiment are fixed to the same pole 3 so as not to interfere with the separate band bracket 16' and antenna mounting bracket 17', etc.

[0012] (Extendable arm 11,11) The pair of upper and lower telescopic arms 11, 11 are each installed by two band fittings 16, 16 spaced apart in the vertical direction of the support 3 on which the satellite communication antenna 2 is installed, and each have a fixed arm 11a fixed to the support 3 and a movable arm 11b that slides relative to the fixed arm 11a.

[0013] (Fixed arm 11a) 5(a) to 5(c) and 6(a) to 6(c), the fixed arm 11a is made of a square tube (square pipe) with a square cross section having an upper surface 11a1, a lower surface 11a2, and a pair of lateral surfaces 11a3, 11a3 with a width W1, and the upper surface 11a1 and the lower surface 11a2 are provided with round arm connecting bolt holes 11a11, 11a12, 11a21, 11a22, respectively, through which arm connecting bolts 11c, 11c passing through in the vertical direction are respectively inserted. Each of the arm connecting bolts 11c, 11c is fastened in a double-nut format by two arm connecting nuts 11d, 11d.

[0014] As shown in FIG. 5(b) and other figures, two square bolt holes 11a31 for the band hardware are provided on a pair of lateral sides 11a3, 11a3 at the rear end of the fixed arm 11a for fixing the band hardware 16, and a reinforcing member 11a4 having a triangular shape in front view, a width W1 the same as the width W1 of the fixed arm 11a, and a support abutment plate 11a41 at its rear end is provided by welding or the like on the underside 11a2 of the rear end to prevent buckling or the like of the fixed arm 11a.

[0015] Furthermore, square scaffold bolt holes 11a32, 11a33 for connecting scaffold bolts 15 are provided on the left and right sides of the lateral side surfaces 11a3, 11a3 on both sides of the tip of the fixed arm 11a. However, as shown in Figures 1, 3, 7, etc., the scaffold bolt 15 is inserted only into the scaffold bolt holes 11a32, 11a33 of the fixed arm 11a constituting the lower telescopic arm 11 of the pair of upper and lower telescopic arms 11, 11, and no scaffold bolt 15 is provided in the fixed arm 11a of the upper telescopic arm 11.

[0016] In addition, the scaffolding bolt hole 11a32 provided at the front of the lateral side surface 11a3 of the fixed arm 11a and the arm connecting bolt holes 11a11, 11a21 provided at the front of the upper surface 11a1 and the lower surface 11a2 of the fixed arm 11a are offset to such an extent that the outer surfaces of the scaffolding bolt 15a and the arm connecting bolt 11c passed through them come into contact with each other, as shown in Figures 7(a) and (b), etc.

[0017] Therefore, in the lower telescopic arm 11, even if an external force acts on the arm connecting bolt 11c or the scaffolding bolt 15a when sliding the movable arm 11b relative to the fixed arm 11a or when placing the worker's foot (work shoes) on the scaffolding bolt 15a, the outer surfaces of the leading scaffolding bolt 15a and the arm connecting bolt 11c, out of the two scaffolding bolts 15a, 15a and the arm connecting bolts 11c, 11d, which are passed through the fixed arm 11a, come into contact with each other, allowing the external force to be transmitted, and the leading scaffolding bolt 15a and the arm connecting bolt 11c can be stabilized. It is not essential in the present invention that the outer surfaces of the scaffolding bolt 15a and the arm connecting bolt 11c come into contact with each other, and it is of course possible to provide the scaffolding bolt hole 11a32 on the lateral surface 11a3 of the fixed arm 11a and the arm connecting bolt holes 11a11, 11b21 on the upper surface 11a1 and the lower surface 11a2 so that they intersect with a small gap.

[0018] (movable arm 11b) As shown in Figures 8(a) to (f), the movable arm 11b is made of a square tube (square pipe) with a square cross section, having upper and lower surfaces 11b1 and 11b2 with the same width W1 as the fixed arm 11a, and a pair of lateral surfaces 11b3 and 11b3, and the upper and lower surfaces 11b1 and 11b2 are each provided with elongated holes 11b11 and 11b21 for sliding the arm, which extend in the longitudinal direction of the movable arm 11b and penetrate in the vertical direction.

[0019] This allows the length of the pair of upper and lower telescopic arms 11, 11 to be changed by placing the lower surface 11b2 of the movable arm 11b on the upper surface 11a1 of the fixed arm 11a, and passing a slide guide bolt 11a3 through the arm connection bolt holes 11a11, 11a12, 11a21, 11a22 of the fixed arm 11a and the slide long hole 11b11 of the movable arm 11b and fastening it with a nut 11a4.

[0020] Furthermore, two square antenna support member bolt holes 11b31 for attaching an antenna support member mounting bracket 12 that supports the antenna support member 13 are provided on the lateral side surfaces 11b, 11b of the movable arm 11b.

[0021] (Antenna support bracket 12) The antenna support member mounting bracket 12 is a bracket that is attached to the tip of the movable arm 11b and supports the antenna support member 13, as shown in Figures 1 to 4, and is formed in a U-shape from an upper plate portion 12a and a pair of side plate portions 12b, 12b bent 90 degrees from both the left and right sides of the upper plate portion 12a, as shown in Figures 9(a) to (e).

[0022] The upper plate portion 12a is provided with a U-shaped groove portion 12a1.

[0023] On the other hand, the pair of side plate portions 12b, 12b are provided with two arm connecting bolt holes 12b1 in the horizontal direction, which are aligned with the antenna support member bolt holes 11b31, 11b31 provided at the tip of the movable arm 11b and through which bolts 11e are passed and fastened with nuts 11f, and two antenna support member connecting bolt holes 12b2, 12b3 are provided in the vertical direction, which are aligned with the lateral bolt holes 13b, 13b of the antenna support member 13 and through which bolts 11g are passed and fastened with nuts 11h.

[0024] (Antenna support member 13) The antenna support member 13 is a member supported at the tip of the movable arms 11b, 11b of the upper and lower telescopic arms 11, 11 via antenna support member mounting brackets 12, 12, as shown in Figures 1 to 4, etc., and is made up of a pipe (round tube) with a cylindrical cross section as shown in Figures 10(a) to (d), and the satellite communication antenna 2 is attached to the top of it.

[0025] Below the antenna support member 13, two lower arm connecting bolt holes 13a are provided, through which bolts 11g are passed to fix the movable arm 11b that constitutes the lower telescopic arm 11 of the pair of upper and lower telescopic arms 11, 11.

[0026] Meanwhile, above the antenna support member 13, three or more (seven in this embodiment) upper arm connecting bolt holes 13b are provided at intervals in the vertical direction, through which bolts 11g are passed to secure the movable arm 11b constituting the upper telescopic arm 11 of the pair of upper and lower telescopic arms 11, 11, and the height at which the upper movable arm 11b is secured, i.e., the height at which the upper telescopic arm 11 is secured, can be changed. This is because if the vertical spacing between the pair of upper and lower telescopic arms 11, 11 is not changed by other band metal fittings 16' or the like secured to the support pole 3, it may not be possible to secure the band metal fitting 16 for securing the antenna mounting bracket 1 of the embodiment to the support pole 3, and therefore seven upper arm connecting bolt holes 13b are provided at intervals in the vertical direction to make the vertical spacing between the pair of upper and lower telescopic arms 11, 11 variable.

[0027] (Slide handle 14) The slide handle 14 is a member that an operator grasps when sliding the movable arm 11b, and is composed of a pair of antenna support member clamping brackets 14a, 14a that clamp the antenna support member 13 and are fixed by fastening bolts 14b and nuts 14c, as shown in Figures 11(a) to (c), a pair of L-shaped brackets 14d, 14d that are fixed to the pair of antenna support member clamping brackets 14a, 14a by the fastening bolts 14b that fasten the pair of antenna support member clamping brackets 14a, 14a together, a gripping portion bolt 14e that connects the tip ends of the L-shaped brackets 14d, 14d, and a gripping portion collar 14g made of resin or the like that is fitted onto the outer periphery of the gripping portion bolt 14e between the pair of L-shaped brackets 14d, 14d and is held by the operator.

[0028] Here, the pair of antenna support member clamping fittings 14a, 14a have a curved portion in the center so as to clamp the outer periphery of the cylindrical antenna support member 13 as shown in Figures 10(a) and (b), and fastening bolt insertion holes into which fastening bolts 14b are inserted are provided on both sides of the curved portion.

[0029] The pair of L-shaped metal fittings 14d, 14d have base portions 14d1, 14d1 that are fixed to the pair of antenna support member clamping metal fittings 14a, 14a respectively by their fastening bolts 14b, and side plate portions 14d2, 14d2 that extend from the base portions 14d1, 14d1, bending at approximately a right angle, and have bolt holes for the gripping portion provided on the tip end side, and the spacing W2 between the side plate portions 14d2, 14d2 of the pair of L-shaped metal fittings 14d, 14d is configured to be larger than the width W1 of the fixed arm 11a and the movable arm 11b that make up the pair of upper and lower telescopic arms 11, 11, as shown in Figure 13 etc. described below.

[0030] Furthermore, since the side plate portions 14d2, 14d2 of the pair of L-shaped metal fittings 14d, 14d are connected by the gripping portion bolt 14e and nut 14f with a width W2, the width W2' of the slide handle 14 is larger than the distance W2 between the side plate portions 14d2, 14d2 of the L-shaped metal fittings 14d, 14d, as shown in Figure 13, etc.

[0031] 1 and 2, and FIG. 12, which is an enlarged view of a main portion thereof, even when the movable arm 11b is slid toward the fixed arm 11a to shorten the length of the pair of upper and lower telescopic arms 11, 11 to the maximum, the tip of the slide handle 14, that is, the right end of the pair of L-shaped metal fittings 14d, 14d of the slide handle 14 in FIG. 12, is configured to have a length that does not exceed the left and right scaffolding bolts 15a, 15a provided on both the left and right sides of the fixed arm 11a of the lower telescopic arm 11, in other words, a length that does not exceed the line L1 connecting the scaffolding bolt holes 11a32, 11a32 provided on the tip sides of the lateral sides 11a3, 11a3 of each fixed arm 11a, 11a of the pair of upper and lower telescopic arms 11, 11.

[0032] The gripping portion bolt 14e is a bolt that passes through the gripping portion bolt hole in the side plate portion 14d2 of one of the pair of L-shaped metal fittings 14d, 14d (the lower side in Figure 11(b)) and protrudes from the gripping portion bolt hole in the other side plate portion 14d2 (the upper side in Figure 11(b)), and is fastened with a nut 14f.

[0033] The grip collar 14g is a pipe made of resin or the like that is fitted onto the outside of the grip bolt 14e between the side plate portions 14d2, 14d2 of the pair of L-shaped metal fittings 14d, 14d and is held by an operator.

[0034] (Scaffolding bolts 15a, 15a) As shown in Figures 1 to 4, 12, 13, etc., the scaffolding bolts 15a, 15a are members provided as scaffolding on which the left and right feet of a worker rest, on each of the left and right sides of the fixed arm 11a that constitutes the lower telescopic arm 11 of the pair of upper and lower telescopic arms 11, 11, and the scaffolding bolts 15a, 15a are provided on both the left and right sides of the fixed arm 11a that constitutes the lower telescopic arm 11 by passing the same scaffolding bolts 15a, 15a through two scaffolding bolt holes 11a32, 11a33 that penetrate in the left-right direction, respectively, and fastening them with nuts 15b, 15b.

[0035] Here, as shown in FIG. 13 etc., the distance W3 between the tip ends of the scaffolding bolts 15a, 15a attached to the fixed arm 11a of the lower telescopic arm 11 is Slide handle It is configured to be larger than the width W2 of 14.

[0036] (Band hardware 16) The band fitting 16 is a well-known type also called a flexible band, and as shown in Figures 14(a) to (d), has a plurality of pairs of band pieces 16a, 16a with a plurality of through holes 16a2 formed at a predetermined interval on one end side and fastening receiving portions 16a1, 16a1 formed on the other end side, and a pair of auxiliary band pieces 16b, 16b that connect the pair of band pieces 16a, 16a with a band length adjustment bolt 16c and a nut 16d by aligning one of a plurality of through holes 16a1 formed on one side of the plurality of pairs of band pieces 16a, 16a with their own through hole 16a1.

[0037] The band fitting 16 is configured so that the connecting portions 16b1, 16b1 of the pair of auxiliary band pieces 16b, 16b are fastened and connected by two connecting bolts 16e and nuts 16f through two bolt holes formed therein, while the fastening receiving portions 16a1, 16a1 of the pair of band pieces 16a, 16a are fastened by a fastening bolt 16g and a nut 16h through bolt holes formed therein, and are wound around and fixed to the support 3.

[0038] <Method of using the antenna mounting bracket 1 according to the embodiment of the present invention> Next, a method for adjusting the satellite communication antenna 2 using the antenna mounting bracket 1 according to the embodiment of the present invention configured as described above will be described.

[0039] When inspecting or adjusting a satellite communication antenna 2 attached to the upper end of an antenna support member 13 of an antenna mounting bracket 1 of an embodiment according to the present invention, which is attached to a pole 3 with two band metal fittings 16, 16 as shown in Figures 1 to 4, etc., an operator climbs up the pole 3 to which the antenna mounting bracket 1 of the embodiment is attached, as shown in Figure 15, for example, and reaches the height of the antenna mounting bracket 1. Here, it is assumed that the satellite communication antenna 2 is attached with the pair of telescopic arms 11, 11 of the antenna mounting bracket 1 of the embodiment fully extended, as shown in Figure 15, etc.

[0040] In this case, the worker first loosens the two arm connecting nuts 11d, 11d on each of the arm connecting bolts 11c, 11c that secure the fixed arm 11a and the movable arm 11b on each of the pair of upper and lower telescopic arms 11, 11, thereby making the movable arm 11b slidable relative to the fixed arm 11a.

[0041] Next, as shown in Figure 15, the worker grasps the slide handle 14 attached to the antenna support member 13 of the antenna mounting bracket 1 of the embodiment and pulls it in the direction of the arrow, sliding the movable arm 11b toward the support 3 and pulling the satellite communication antenna 2 toward the support 3.

[0042] Then, the upper and lower movable arms 11b, 11b that make up the pair of upper and lower telescopic arms 11, 11 move on the upper and lower fixed arms 11a, 11a, and the satellite communication antenna 2 moves closer to the support pole 3. When the movable arm 11b is slid as far as possible toward the support pole 3, that is, when the pair of telescopic arms 11, 11 are contracted as far as possible, the state shown in Figures 3 and 4 is obtained.

[0043] Then, when the worker retracts the pair of upper and lower telescopic arms 11, 11 as shown in Figures 3 and 4, he or she can climb onto the upper telescopic arm 11 of the antenna mounting bracket 1 of the embodiment, and then sit down on the telescopic arm 11 on the side of the upper telescopic arm 11 of the antenna mounting bracket 1 of the embodiment, as shown in Figure 16, for example.

[0044] At this time, the worker's feet (work shoes) are placed on scaffolding bolts 15a, 15a that are passed through scaffolding bolt holes 11a32, 11a33 on both the left and right sides of the fixed arm 11a that constitutes the lower telescopic arm 11 and fastened with nuts 15b, and the worker can reach out to the satellite communication antenna 2 attached to the top of the antenna support member 13 to perform maintenance work such as adjustments and inspections.

[0045] Therefore, even when the satellite communication antenna 2 is installed at a high position on the support pole 3 by extending the pair of telescopic arms 11, 11, and maintenance work such as adjusting the satellite communication antenna 2 is performed after installation, the worker can climb the support pole 3 on which the satellite communication antenna 2 is installed and pull the slide handle 14 to bring the satellite communication antenna 2 closer to the support pole 3 without using a ladder, stepladder, aerial work vehicle, etc., thereby improving work efficiency.

[0046] Furthermore, even when the pair of upper and lower telescopic arms 11, 11 that make up the antenna mounting bracket 1 are contracted to their maximum extent as shown in FIG. 16, the tips of the L-shaped metal fittings 14d, 14d and the grip bolt 14e that make up the slide handle 14 of the antenna mounting bracket 1 of the embodiment as shown in FIG. 10 and other figures do not extend beyond the scaffold bolts 15a, 15a, that is, the line L1 that connects the scaffold bolt holes 15a32, 11a32 on the tip side provided in the fixed arms 11a, 11a of the pair of upper and lower telescopic arms 11, 11. Therefore, even if a worker places his or her feet on the scaffold bolts 15a, 15a as shown in FIG. 15, the worker can perform work without hitting the tips of the L-shaped metal fittings 14d, 14d that make up the slide handle 14, the grip bolt 14e, the grip collar 14g, etc.

[0047] Therefore, workers can place their feet (work shoes) on the scaffolding bolts 15a, 15a and perform maintenance work on the satellite communication antenna 2 safely and reliably, which also improves work efficiency.

[0048] Furthermore, the tips of the scaffolding bolts 15a, 15a protrude laterally beyond the tips of the L-shaped metal fittings 14d, 14d and the grip bolt 14e that make up the slide handle 14, as shown in Figures 11 and 12, etc., so that they protrude on both the left and right sides of the fixed arm 11a of the lower telescopic arm 11. Therefore, even if a worker places his or her feet on the scaffolding bolts 15a, 15a, as shown in Figure 15, the worker's feet (work shoes) will not come into contact with the tips of the L-shaped metal fittings 14d, 14d that make up the slide handle 14, the grip bolt 14e, the grip collar 14g, etc., and maintenance work on the satellite communication antenna 2 can be carried out safely and reliably, which also improves work efficiency in this respect.

[0049] <Summary of the antenna mounting bracket 1 according to the embodiment of the present invention> As described above, the antenna mounting bracket 1 of the embodiment of the present invention is installed at a distance in the vertical direction of the support pole 3, which is the antenna installation object on which the satellite communication antenna 2 is to be installed, and comprises a pair of upper and lower telescopic arms 11, 11 each having a fixed arm 11a fixed to the support pole 3 and a movable arm 11b that slides relative to the fixed arm 11a, and an antenna support member 13 supported at the tip of each of the pair of upper and lower telescopic arms 11, 11, to which the satellite communication antenna 2 is attached and which is provided with a slide handle 14 that can be grasped by an operator when sliding the movable arm 11b.

[0050] Therefore, with the antenna mounting bracket 1 of the embodiment according to the present invention, even when the satellite communication antenna 2 is installed at a high place with the pair of extendable arms 11, 11 extended and maintenance work such as adjustment of the satellite communication antenna 2 is performed after installation, the worker can pull the slide handle 14 to contract the pair of upper and lower extendable arms 11, 11 to perform maintenance work on the satellite communication antenna 2, thereby improving the work efficiency of maintenance work on the satellite communication antenna 2.

[0051] Furthermore, in the antenna mounting bracket 1 according to the embodiment of the present invention, the fixed arm 11a has a square cross section, and upper and lower side surfaces 11a1 and 11a2 are provided with arm connecting bolt holes 11a11, 11a12, 11a21 and 11a22 that penetrate vertically, while the movable arm 11b has the same rectangular cross section as the fixed arm 11a, and upper and lower side surfaces 11b1 and 11b2 are provided with slide slots 11b11 that extend in the longitudinal direction of the movable arm 11b and penetrate vertically. The lower surface 11b2 of the movable arm 11b is placed on the surface 11a1, and two arm connecting bolts 11c, 11c are passed through the arm connecting bolt holes 11a11, 11a12, 11a21, 11a22 (see Figure 5) of the fixed arm 11a and the slide long hole 11b11 of the movable arm 11b, and fastened in a double nut format with two nuts 11d, 11d, respectively, to change the overlap length between the fixed arm 11a and the movable arm 11b, thereby making it possible to change the length of the pair of upper and lower telescopic arms 11, 11.

[0052] Therefore, in the pair of telescopic arms 11, 11, the fixed arm 11a and the movable arm 11b, which have the same square cross section, are stacked vertically and slid together, so costs can be reduced by using the same steel pipe for the fixed arm 11a and the movable arm 11b.

[0053] In particular, when the pair of upper and lower telescopic arms 11, 11 are contracted to their maximum extent as shown in Figures 3 and 4, the movable arm 11b overlaps the fixed arm 11a of the same cross-sectional size in each of the pair of upper and lower telescopic arms 11, 11, thereby improving the strength (bearing strength) of the pair of upper and lower telescopic arms 11, 11, so that even when a worker sits down on the upper telescopic arm 11 of the antenna mounting bracket 1 and places his or her feet (work shoes) on the scaffolding bolts 15a, 15a provided on both the left and right sides of the fixed arm 11a that constitutes the lower telescopic arm 11, as shown in Figure 15, the worker's weight and the like can be efficiently supported by the pair of upper and lower telescopic arms 11, 11, improving work efficiency.

[0054] Furthermore, in the antenna mounting bracket 1 of the embodiment according to the present invention, the slide handle 14 is composed of a pair of antenna support member clamping brackets 14a, 14a that clamp the antenna support member 13 and are fixed by fastening bolts 14b and nuts 14c, a pair of L-shaped brackets 14d, 14d that are fixed to the pair of antenna support member clamping brackets 14a, 14a by fastening bolts 14b that fasten the pair of antenna support member clamping brackets 14a, 14a together, a gripping portion bolt 14e that connects the tip ends of the L-shaped brackets 14d, 14d, and a gripping portion collar 14g that is fitted onto the outer periphery of the gripping portion bolt 14e between the pair of L-shaped brackets 14d, 14d and is held by an operator.

[0055] Therefore, the slide handle 14 clamps and fixes the antenna support member 13 using a fastening bolt 14b and nut 14c that fasten a pair of antenna support member clamping fittings 14a, 14a together, making it possible to attach the antenna support member 13 at any height, which also improves workability.

[0056] In particular, the slide handle 14 is fixed to the antenna support member 13, which is made of a pipe with a circular cross section, by clamping a pair of antenna support member clamping fittings 14a, 14a together with fastening bolts 14b and nuts 14c, so the horizontal angle of the slide handle 14 relative to the antenna support member 13 can also be fixed at any horizontal angle, which also improves workability.

[0057] Furthermore, in the antenna mounting bracket 1 of the embodiment according to the present invention, of the pair of upper and lower telescopic arms 11, 11, scaffolding bolts 15a, 15a are provided on both the left and right sides of the fixed arm 11a constituting at least the lower telescopic arm 11, protruding from the side of the fixed arm 11a as footholds for the left and right feet of a worker.

[0058] Therefore, when performing maintenance work such as adjusting the satellite communication antenna 2 after the satellite communication antenna 2 has been mounted at a high position on the support pole 3, as shown in FIG. 15, a worker can straddle the antenna mounting bracket 1 of the embodiment, sit on the upper telescopic arm 11, and place their feet (work shoes) on the scaffolding bolts 15a, 15a to perform the work, eliminating the need for ladders, stepladders, aerial work vehicles, etc., which also improves work efficiency.

[0059] Furthermore, in the antenna mounting bracket 1 of the embodiment according to the present invention, of the pair of upper and lower telescopic arms 11, 11, two foothold bolt holes 11b31, 11b32 that penetrate in the left-right direction are provided on both the left and right side surfaces of the fixed arm 11a that constitutes at least the lower telescopic arm 11, and scaffolding bolts 15a, 15a are passed through these multiple foothold bolt holes 11b31, 11b32, respectively, so as to protrude from the side surfaces of the fixed arm 11a as footholds on both the left and right sides.

[0060] Therefore, scaffolding can be easily set up and costs can be reduced using the scaffolding bolts 15a, 15a provided on both the left and right sides of the fixed arm 11a that constitutes the lower telescopic arm 11. Furthermore, when a worker climbs up the support pole 3 from below aiming for the antenna mounting bracket 1 and gets on top of the upper telescopic arm 11 as shown in Figure 15, the worker can grasp the scaffolding bolts 15a, 15a, which also improves work efficiency.

[0061] In the antenna mounting bracket 1 according to the embodiment of the present invention, the distance W3 between the tips of the foothold bolts 15a, 15a attached to the fixed arm 11a constituting the lower telescopic arm 11 is Slide handle It is configured to be larger than the width W2 of 14.

[0062] Therefore, Figure 1 6 As shown in the figure, even when a worker works with his feet (work shoes) on the scaffold bolts 15a, 15a, the worker must Slide handle By widening the width W2 of the 14, the knees of the worker can be Slide handleSince interference such as hitting the antenna 14 can be prevented, maintenance work etc. of the satellite communication antenna 2 can be carried out safely and reliably, which also improves work efficiency.

[0063] Furthermore, in the antenna mounting bracket 1 according to the embodiment of the present invention, even when the movable arm 11b is slid toward the fixed arm 11a to shorten the length of the pair of upper and lower telescopic arms 11, 11 to the maximum, as shown in Figures 11 and 12, the slide handle 14 is configured to be long enough not to exceed the left and right foothold bolts 15a, 15a.

[0064] Therefore, as shown in FIG. 15, even when the pair of upper and lower telescopic arms 11, 11 that make up the antenna mounting bracket 1 are contracted to their maximum extent and a worker sits on the upper telescopic arm 11 and places his or her feet (work boots) on the scaffold bolts 15a, 15a to perform work, it is possible to prevent the worker's knees from hitting the tips of the L-shaped metal fittings 14d, 14d that make up the slide handle 14, the grip bolt 14e, or the grip collar 14g, which also makes it possible to perform maintenance work, etc. on the satellite communications antenna 2 safely and reliably, improving work efficiency.

[0065] Furthermore, in the antenna mounting bracket 1 of the embodiment according to the present invention, the antenna support member 13 is provided with a lower arm connecting bolt hole 13a on the lower side for fixing the movable arm 11b constituting the lower telescopic arm 11 of the pair of upper and lower telescopic arms 11, 11, while on the upper side thereof are provided with a plurality of upper arm connecting bolt holes 13b spaced apart in the vertical direction for fixing the movable arm 11b constituting the upper telescopic arm 11 of the pair of upper and lower telescopic arms 11, 11.

[0066] Therefore, when changing the vertical distance between the pair of upper and lower telescopic arms 11, 11 using other band fittings or the like fixed to the support 3, the vertical distance between the pair of upper and lower telescopic arms 11, 11 can be changed by selecting from the multiple spaced apart upper arm connecting bolt holes 13b, so that the satellite communication antenna 2 can be reliably installed at the optimum height. [Explanation of symbols]

[0067] 1 Antenna mounting bracket 11 Telescopic arm 11a Fixed arm 11a1 Top side 11a11, 11a12 Arm connection bolt holes 11a2 Bottom side 11a21, 11a22 Arm connecting bolt holes 11a3 Lateral side 11a31 Bolt holes for band fittings 11a32 Scaffolding bolt hole 11a4 Reinforcement Plate 11b Movable arm 11b1 Top side 11b11 Slide slot 11b2 Lower side 11b21 Slide slot 11b3 Lateral side 11b31 Bolt holes for antenna support members 12 Antenna support member mounting bracket 12a Upper plate 12a1 U-shaped groove 12b Side plate part 12b1 Arm connection bolt hole b1 12b2 Bolt holes for connecting antenna support member 13 Antenna support member 13a Lower arm connecting bolt hole 13b Upper arm connecting bolt hole 14 Slide handle 14a Antenna support member clamping metal fitting 14b Fastening bolt 14c nut 14d L-shaped bracket 14e Bolt for gripping part 14f Nut 14g Grip collar 15a, 15b Scaffolding bolts 15c nut 16 Band metal fittings 2. Satellite communication antenna

Claims

1. a pair of upper and lower telescopic arms each having a fixed arm installed at a distance from the other in the vertical direction of the object to be installed the antenna and a movable arm that slides relative to the fixed arm; an antenna support member supported at each end of the pair of upper and lower telescopic arms, to which an antenna is attached, and which is provided with a slide handle that an operator can grasp when sliding the movable arm; An antenna mounting bracket comprising:

2. 2. The antenna mounting bracket according to claim 1, The fixed arm has a rectangular cross section, and has arm connecting bolt holes that penetrate the upper and lower sides in the vertical direction. the movable arm has a rectangular cross section of the same size as the cross section of the fixed arm, and has arm slide slots on its upper and lower side surfaces that extend in the longitudinal direction of the movable arm and penetrate in the vertical direction; an antenna mounting bracket configured to change the length of the pair of upper and lower telescopic arms by placing the lower surface of the movable arm on the upper surface of the fixed arm, and passing an arm slide connecting bolt through an arm connecting bolt hole of the fixed arm and an arm slide long hole of the movable arm and fastening them with a nut to change the overlapping length of the fixed arm and the movable arm.

3. 2. The antenna mounting bracket according to claim 1, The slide handle is a pair of antenna support member clamping metal fittings that clamp the antenna support member and are fixed by fastening bolts and nuts; a pair of L-shaped metal fittings each having a base portion fixed to each of the pair of antenna support member clamping fittings by the fastening bolts that fasten the pair of antenna support member clamping fittings together, and a side plate portion that extends from the base, bending at a substantially right angle, and has a grip portion bolt hole on the tip side; a gripping portion bolt that is passed through the gripping portion bolt hole in one side plate portion of the pair of L-shaped metal fittings and protrudes from the gripping portion bolt hole in the other side plate portion and is fastened with a nut; and a grip collar that is fitted onto the outer periphery of the grip bolt between the side plate portions of the pair of L-shaped metal fittings and is gripped by an operator.

4. 4. The antenna mounting bracket according to claim 3, The antenna mounting bracket is characterized in that the antenna support member is a pole-shaped antenna support member having a circular cross section.

5. 2. The antenna mounting bracket according to claim 1, The antenna mounting bracket is characterized in that scaffolding for a worker's left and right feet is provided on both the left and right sides of the fixed arm constituting at least the lower telescopic arm of the pair of upper and lower telescopic arms.

6. 6. The antenna mounting bracket according to claim 5, an antenna mounting bracket, characterized in that at least two foothold bolt holes penetrating in the left-right direction are provided on both left and right sides of the fixed arm constituting at least the lower telescopic arm of the pair of upper and lower telescopic arms, and foothold bolts are provided in the two foothold bolt holes, respectively, protruding from the side faces of the fixed arm, as footholds on both the left and right sides.

7. 7. The antenna mounting bracket according to claim 6, An antenna mounting bracket characterized in that the distance between the tips of the two scaffolding bolts provided in the two scaffolding bolt holes of the fixed arm is greater than the width of the slide handle.

8. 7. The antenna mounting bracket according to claim 6, The slide handle is The antenna mounting bracket is configured so that the length of the pair of upper and lower telescopic arms does not exceed the footing bolt even when the movable arm is slid toward the fixed arm and the length of the pair of upper and lower telescopic arms is shortened to the maximum.

9. 2. The antenna mounting bracket according to claim 1, The antenna support member has: On the lower side, bolt holes are provided for fixing the movable arms constituting the lower pair of telescopic arms of the pair of upper and lower telescopic arms, An antenna mounting bracket characterized in that a plurality of bolt holes are provided at intervals in the vertical direction on the upper side for fixing the movable arm constituting the upper pair of telescopic arms out of the pair of upper and lower telescopic arms.

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