JP5524928B2 - Antenna 樋 mounting structure - Google Patents

Description

  The present invention relates to a mounting structure for an antenna rod which is an antenna having a drainage function.

  2. Description of the Related Art Conventionally, a hook-mounting antenna attached to a bag is known (see, for example, Patent Document 1).

  The antenna described in Patent Document 1 is retrofitted to a fence disposed along a building outer wall. This antenna has a structure divided into two substantially rectangular halves. The pair of substantially rectangular halves are arranged so as to sandwich the collar, and the antennas are attached by connecting the halves with a fastener such as a screw in this state.

Japanese Patent Laid-Open No. 01-168101

  By the way, the antenna described in Patent Document 1 is composed of a substantially rectangular half, and when it is attached to a saddle, it bulges greatly to the side of the saddle. For this reason, the antenna described in the cited document 1 is very conspicuous in appearance in the installed state, and there is a possibility that the appearance of the building is impaired.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an antenna bag that can prevent deterioration in antenna performance while being inconspicuous even if attached to the bag. It is to provide a mounting structure.

  The mounting structure of the antenna cage of the present invention includes a cage disposed along the outer wall of the building, and an antenna cage connected to the cage, and the antenna cage is concentric with the cage. An outer cylindrical portion provided; a slot antenna provided along the outer cylindrical portion; and provided in the outer cylindrical portion so as to be connected to and connected to the flange, and to a center line of the flange. On the other hand, it has a drainage cylinder portion provided at a position eccentric to the opposite side to the slot of the slot antenna.

  Further, in this antenna rod mounting structure, the outer cylindrical portion includes an inner cylindrical body in which the antenna is provided on an outer peripheral portion, and an outer cylindrical body that is provided concentrically on the outer side of the inner cylindrical body. Preferably it is.

  Further, in this antenna rod mounting structure, the drainage cylinder part is formed in an approximately elliptical cross section, and its long axis direction is eccentric to the opposite side of the slot so as to be along the centerline of the cross section of the outer cylinder part. It is preferable to be provided at the position.

  According to the mounting structure of the antenna rod of the present invention, it is possible to prevent the antenna performance from deteriorating while being inconspicuous even if it is mounted on the rod.

It is sectional drawing of the antenna cage | basket of this embodiment. It is the perspective view which fractured | ruptured partially the antenna rod of this embodiment. It is a disassembled perspective view of the antenna cage of this embodiment. It is a perspective view of the antenna of the antenna cage of this embodiment. It is a perspective view around the feeding part of the antenna rod of the present embodiment. It is a perspective view of the antenna of the antenna cage of this embodiment. It is a horizontal sectional view of the antenna cage of this embodiment, and has penetrated the outer cylinder. It is a disassembled perspective view of the lower connection body of the antenna rod of this embodiment. It is a disassembled perspective view of the upper connection body of the antenna rod of this embodiment. It is a perspective view which shows the water collecting part of the antenna rod of this embodiment, and is the figure which permeate | transmitted the inner cylinder. It is a perspective view of the state which attached the rotation part in FIG. It is sectional drawing of the upper connection body vicinity of the antenna rod of this embodiment. It is the schematic which shows the attachment structure of the antenna rod of this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 13, the antenna rod 1 of the present embodiment is attached to the removed portion of the rod 8 disposed along the building outer wall 90 in the vertical direction.

  In the following, if necessary, the cylindrical scissors located on the upstream side after part of the scissors 8 is cut off is referred to as “upstream scissors 91”, and downstream after part of the scissors 8 is cut off. The cylindrical scissors located on the side are distinguished as “downstream scissors 92”.

  The antenna 1 is connected to an electric device or the like and constitutes an antenna for receiving radio waves. Specifically, the antenna 1 is used as an antenna for a television by being connected to the television via a cable 93, for example. As shown in FIG. 1, the antenna rod 1 of the present embodiment includes an outer cylindrical portion 10 constituted by an outer cylindrical body 17 and an inner cylindrical body 11, and an antenna 2 provided along the outer cylindrical portion 10. The drain cylinder part 12 provided in the inside of the outer cylinder part 10 is provided. The antenna rod 1 further includes a connection portion 4 for connecting to the rod 8 in communication.

  Here, the connection part 4 is provided at the upper end part and the lower end part of the outer cylinder part 10. When the antenna rod 1 is attached immediately above the drainage groove and does not need to be connected to the downstream rod 92, the connecting portion 4 only needs to be provided on the upper end side. Further, when the antenna rod 1 is attached to the water collector 95 or the like and is not connected to the upstream rod 91, the connecting portion 4 only needs to be provided on the lower end side.

  Hereinafter, the connection part 4 provided in the upper end part of the outer side cylinder part 10 is distinguished as the upper connection body 40, and the connection part 4 provided in the lower end part of the outer side cylinder part 10 is distinguished as the lower connection body 50 as needed.

  The outer cylinder part 10 includes an inner cylinder 11 in which the antenna 2 is provided on the outer peripheral part 16, and an outer cylinder 17 provided concentrically outside the inner cylinder 11.

  The inner cylinder 11 is a round rod formed of a nonconductive synthetic resin. As shown in FIG. 3, the inner cylinder 11 is provided with an upper positioning groove 13 having a U-shape in a side view at the opening edge of the upper end. Further, the inner cylindrical body 11 is provided with a lower positioning groove 14 in an inverted U shape in a side view at the opening edge at the lower end.

  The upper positioning groove 13 is disposed at the same position as the upper positioning recess 152 provided in the water collecting portion 15 of the upper connection body 40 and the upper fitting groove 252 provided in the antenna 2. In the upper positioning groove 13, a positioning protrusion (not shown) that protrudes from the upper end of the mounting member 7 is inserted in a state where it is disposed at the same position as the upper positioning recess 152 and the upper fitting groove 252. Thereby, the antenna 2, the inner cylinder 11, and the water collecting part 15 are mutually positioned and integrated in the circumferential direction.

  The lower positioning groove 14 is arranged at the same position as the lower positioning recess 57 of the lower connecting body 50 and the lower fitting groove 251 of the antenna 2. The lower positioning groove 14 is inserted with a positioning protrusion (not shown) protruding from the lower end of the mounting member 7 in a state where it is disposed at the same position as the lower positioning recess 57 and the lower solicitation groove 251. Thereby, the antenna 2, the inner cylinder 11, and the lower connection body 50 are positioned and integrated with each other in the circumferential direction.

  The outer cylinder 3 is formed in a cylindrical shape as shown in FIG. The outer cylinder 3 is formed such that its inner diameter is larger than that of the inner cylinder 11. The outer cylinder 3 is disposed such that its central axis is coaxial with the central axis of the inner cylinder 11. Thus, the outer cylinder 3 is provided so as to cover the inner cylinder 11 and the antenna 2 from the outside. The outer cylinder 3 is made of a nonconductive synthetic resin. As shown in FIG. 7, the outer cylindrical body 3 is provided with protruding ridges 31 extending in the vertical direction on the outer surface of the side wall thereof. The protrusion 31 of the present embodiment is provided over substantially the entire length of the outer cylinder 3 in the vertical direction. The protrusion 31 is disposed in a substantially symmetrical position with respect to a slot 21 of the antenna 2 (described later) about the central axis in the horizontal cross section. In other words, the protrusion 31 is located on the side opposite to the slot 21 of the antenna 2 across the central axis.

  The outer cylinder 3 covers the antenna 2 from the outside when attached to the outside of the inner cylinder 11. For this reason, the installer cannot recognize the receiving direction of the antenna 2 when installing the antenna rod 1 on the outer wall 90. However, in this embodiment, since this protrusion 31 is always located on the side opposite to the receiving direction of the antenna 2, the installer can grasp the receiving direction of the antenna 2. That is, the protrusion 31 constitutes visual recognition means 32 for grasping the transmission / reception direction of the antenna 2.

  The antenna 2 is provided on the outer peripheral portion 16 of the inner cylindrical body 11. The antenna 2 is stacked on the outer peripheral portion 16 of the inner cylinder 11 or embedded in the thickness of the outer peripheral portion 16. As shown in FIG. 2, the antenna 2 of the present embodiment is stacked from the outside along the outer peripheral portion 16 of the inner cylinder 11 and fixed by the attachment member 7. The antenna 2 is made of a conductive metal plate material (including metal foil). As shown in FIG. 4, the antenna 2 is formed by bending a vertically long rectangular metal plate material uniformly in the long side direction so that the short side direction is C-shaped.

  The antenna 2 includes a slot antenna 20 in which a plurality of slots 21 are formed in the vertical direction. That is, the antenna 2 of this embodiment has directivity. In the antenna 2, a plurality of slots 21 are arranged in the vertical direction (two in this embodiment), and adjacent slots 21 are connected to each other by a slit-like narrow groove 22. In the antenna 2, each slot 21 is located in a part of the circumferential direction. Each slot 21 is formed by an opening penetrating in the thickness direction of the metal plate material, and is formed in a bow tie shape in which vertices of a pair of triangles are abutted with each other. The upper slot 21 has a power feeding portion 23 at a substantially central portion in the vertical direction. The power feeding unit 23 of the present embodiment is configured by the apex portions of the triangular pieces 24 facing in the circumferential direction.

  As shown in FIG. 5, a coaxial cable 75 is electrically connected to the power feeding unit 23. The coaxial cable 75 has a central line connected to one triangular piece 24 and an outer mesh line connected to the other triangular piece 24. The coaxial cable 75 outputs the radio wave received by the antenna 2 to an indoor TV or the like. As for the coaxial cable 75, a 1st end is connected to the electric power feeding part 23, and a 2nd end is connected to the connection tool 422 provided in the upper connection body 40 (refer FIG. 3, 11).

  As shown in FIG. 4, the antenna 2 of the present embodiment includes a first receiving unit 26 that receives radio waves in a first frequency band (for example, 473 to 600 MHz), and a second frequency band (for example, 600 to 720 MHz). And a second receiving unit 27 for receiving the radio wave.

  The first receiving unit 26 includes a slot 21 and an opening peripheral edge of the slot 21. The second receiving unit 27 is made of a metal plate material that is continuous in the circumferential direction adjacent to the slot 21 in the vertical direction.

  The length in the vertical direction of the slot 21 constituting the first receiving unit 26 is determined according to the length of the electrical half wavelength of the radio wave in the first frequency band. The circumferential length of the second receiving unit 27 is determined according to the electrical half-wavelength of the radio wave in the second frequency band.

  In addition, as shown in FIG. 6, the antenna 2 has a gap 28 formed between the both ends in the circumferential direction over the entire length in the vertical direction. The gap 28 is provided at a position facing the slot 21, that is, formed so as to be at a position opposite to the slot 21 across the arc center of the antenna 2.

  Further, the antenna 2 has a punched portion 29 on the back of the slot 21. The punched portion 29 is a portion where no metal plate material is present, and is provided at a position overlapping the slot 21 when viewed from the front. The punched portion 29 is formed such that the vertical length is longer than the vertical length of the slot 21, and the circumferential length is longer than the circumferential length of the slot 21.

  As shown in FIG. 3, the antenna 2 has a non-conductive protective sheet 25 laminated on a metal plate. For this reason, in the antenna 2 of this embodiment, the generation of rust is suppressed by the protective sheet 25. The antenna 2 has a lower insertion groove 251 disposed at a position overlapping the lower positioning recess 57 of the lower connection body 50 at the lower end portion of the protective sheet 25. The lower fitting groove 251 is provided at a position corresponding to the slot 21. Specifically, the lower fitting groove 251 is provided at a position having substantially the same phase. Further, the antenna 2 has an upper insertion groove 252 disposed at the same position as the upper positioning recess 412 of the water collecting portion 41 of the upper connection body 40 at the upper end portion of the protective sheet 25.

  The antenna 2 may be composed of only a metal plate material on which the protective sheet 25 is not laminated.

  As shown in FIG. 2, the antenna 2 having such a configuration is attached in a state in which the curved and inwardly facing back surface is in contact with the outer peripheral portion 16 of the inner cylindrical body 11. In other words, the antenna 2 is provided outside the drainage channel. In a state where the antenna 2 is wound around the outer peripheral portion 16 of the inner cylindrical body 11, the antenna 2 is pressed and fixed by the mounting member 7 from the outside.

  As shown in FIG. 3, the attachment member 7 is formed in an annular shape in plan view. The attachment member 7 is divided into a first member 71 and a second member 72, which are detachably connected. As shown in FIG. 5, the attachment member 7 includes a power feeding fixing portion 73 that holds and fixes the end of the coaxial cable 75 in the power feeding portion 23, and a cable holding portion 74 that holds an intermediate portion of the coaxial cable 75. ing. The cable holding portion 74 is provided at a position shifted from the slot 21 in the circumferential direction. As a result, the cable holding portion 74 prevents the coaxial cable 75 from overlapping the slot 21.

  The drain cylinder 12 is disposed inside the inner cylinder 11. The drain cylinder 12 is connected to the upstream side hook 91 and connected to the downstream side hook 92. As shown in FIG. 3, the drain cylinder 12 is configured by a cylinder having a substantially elliptical cross section. The drain cylinder 12 is made of non-conductive synthetic resin.

  As shown in FIG. 7, the drain cylinder 12 is disposed such that its long axis direction is along the cross-sectional center line of the inner cylinder 11 and is eccentric to the opposite side of the slot 21 in the inner cylinder 11. Is provided. In other words, the drain cylinder 12 is fixed to the inner surface of the inner cylinder 11 on the slot 21 side via a gap of a certain level or more, and is disposed at a position away from the slot 21 and the power feeding part 23. ing. The drain cylinder 12 is fixed to the inside of the outer cylinder 10 via the lower connection body 50 and the upper connection body 40.

  The lower connection body 50 is fixed to the lower end of the outer cylinder portion 10. As shown in FIG. 8, the lower connection body 50 of the present embodiment is fixed to both the outer cylinder part 10 and the drain cylinder part 12, and a rotating body 51 that rotates together with the outer cylinder part 10 and the drain cylinder part 12. , And at least two members including a fixed-side holding body 60 that rotatably supports them.

  The rotating body 51 is supported by the holding body 60 so as to be rotatable around the central axis. The rotating body 51 is configured such that the drain cylinder 12, the inner cylinder 11, and the outer cylinder 3 are fixed and integrated, and the drain cylinder 12, the inner cylinder 11, and the outer cylinder 8 are fixed to the fence 8 fixed to the building outer wall 90. The cylindrical body 3 can be rotated in common.

  The rotating body 51 has a fitting portion 54 to which the drain tube portion 12 is connected in communication. The rotating body 51 has an outlet 56 for discharging rainwater to the outside. The rotating body 51 has an outflow passage 55 that allows the fitting portion 54 and the outflow port 56 to communicate with each other.

  The fitting portion 54 is provided at a position eccentric from the center. The fitting portion 54 is provided at a position offset to the opposite side to the lower positioning recess 57. In other words, the fitting portion 54 is provided eccentrically on the side opposite to the slot 21 of the antenna 2. On the other hand, the outflow port 56 is provided in the center. For this reason, the outflow channel 55 has a channel that is inclined so as to be positioned closer to the center as it goes downward.

  The holding body 60 rotatably supports the rotating body 51. In other words, the holding body 60 supports the outer cylinder portion 10 and the drainage cylinder portion 12 so as to be rotatable around the central axis. The holding body 60 includes an outer portion 61 that is fixed to the building outer wall 90 via a saddle retainer 80 and a rail portion 63 that rotatably holds the rotating body 51.

  The outer portion 61 is formed in a cylindrical shape. The outer shell 61 has, at its upper end, a self-weight receiving protrusion 62 that protrudes radially outward in a flange shape. As shown in FIG. 2, the self-weight receiving protrusion 62 abuts on the upper end of the hook retainer 80 that holds the outer portion 61. As a result, the holding body 60 is held by the scissors holder 80 so as not to be displaced downward. The self-weight receiving projection 62 is formed over the entire length of the outer shell 61 in the circumferential direction.

  The lower connecting body 50 connects the drain cylinder 12 to the downstream side trough 92 in communication. In the lower connection body 50 of the present embodiment, the holding body 60 is fixedly attached to the flange 92 on the downstream side. For this reason, the outer cylinder part 10 and the drain cylinder part 12 are rotatable with respect to the downstream side jar 92.

  As shown in FIG. 9, the upper connection body 40 includes a water collection part 41, a rotation part 42, a cover part 43, and a lock part 44. In the upper connection body 40, the cover portion 43 has an inflow port 45 that opens upward. The inflow port 45 communicates with the inside of the drain cylinder 12, that is, communicates with the outflow port 56.

  The water collection unit 41 collects rainwater that has flowed out from the upstream side ridge 91 and distributes it in the drain cylinder 12. As shown in FIG. 10, the water collecting part 41 includes a first fixing part 410 that is fixed to the upper end of the inner cylinder 11 and a second fixing part 411 that is fixed to the upper end of the drainage cylinder part 12. I have. In the water collecting part 41, the first fixing part 410 and the inner cylinder body 11 are connected, and the second fixing part 411 and the drainage cylinder part 12 are connected, whereby the drainage cylinder part 12 is connected to the inner cylinder 11. To fix.

  The water collecting portion 41 is provided with an upper positioning recess 412 disposed at the same position as the upper positioning groove 13 of the upper end edge of the inner cylinder 11. In the state where the upper positioning recess 412, the upper positioning groove 13 and the upper fitting groove 252 of the antenna 2 are overlapped, the positioning protrusion of the mounting member 7 is fitted into the upper positioning recess 412.

  The rotating part 42 is provided so as to be rotatable around the central axis of the outer cylinder part 10. As shown in FIG. 11, the rotating part 42 has a bulging part 420 provided for attaching the connection tool 422. The bulging portion 420 bulges laterally from the outer peripheral portion of the outer cylindrical portion 10. The rotating part 42 has a cable extraction hole 421 formed by an arc-shaped long hole with the central axis of the outer cylinder part 10 as the center. The cable extraction hole 421 penetrates in the vertical direction, and the coaxial cable 75 connected to the antenna 2 is inserted therethrough.

  The rotating part 42 is attached with a connector 422 connected to the end of the coaxial cable 75 opposite to the antenna 2 side. The connection tool 422 is inserted from above the bulging portion 420 and protrudes downward from the lower surface of the bulging portion 420. Thereby, the connection tool 422 is exposed to the outside.

  The cover part 43 is configured to cover the rotating part 42. As shown in FIG. 9, the cover portion 43 is provided with an inflow port 45 in the top surface portion 431. The inflow port 45 is formed larger than the outer diameter of the upstream flange 91 (cylindrical flange), and is loosely fitted to the upstream flange 91 so as to be freely rotatable. The inflow port 45 has a peripheral protrusion 432 projecting downward on the outer peripheral edge thereof. The peripheral protrusion 432 is configured to be located inside the opening above the water collecting portion 41. Thereby, the inflow port 45 is connected to the opening above the water collection part 41. The cover portion 43 is configured such that its side wall is positioned just outside the outer peripheral edge of the rotating portion 42, and is thereby detachably attached while the rotating portion 42 is housed inside.

  The lock part 44 locks the rotation of the rotating part 42 at an arbitrary position around the central axis of the outer cylinder part 10. The lock portion 44 has an annular shape in plan view, and is provided in the inflow port 45 so as to be rotatable. As shown in FIG. 9, the lock portion 44 includes a flange portion 441 that contacts the upper end of the cover portion 43, and an inner piece 442 that protrudes downward from the inner peripheral edge of the flange portion 441. The inner piece 442 has a protrusion 443 that protrudes radially outward.

  The lock unit 44 locks the rotation of the rotation unit 42 and the cover unit 43 by fixing the rotation unit 42 and the cover unit 43 to the water collecting unit 41. Here, as shown in FIG. 9, the water collecting portion 41 is provided with a plurality of fitting convex portions 413 that are convex upward. Further, the water collecting portion 41 is provided with a guide protrusion 414 that engages with the protrusion 443 of the inner piece 442 of the lock portion 44 on the inner surface thereof. The rotating part 42 is provided with a plurality of fitting recesses 423 that open downward on the surface facing the water collecting part 41.

  As shown in FIG. 12, the lock portion 44 presses the cover portion 43 downward via the flange portion 441 by the projection 443 of the inner piece 442 being guided by the guide protrusion 414 of the water collection portion 41. And hold in this state. Then, the fitting convex part 413 of the water collecting part 41 and the fitting concave part 423 of the rotating body are fitted and held in this state. Thereby, the lock part 44 restrict | limits rotation of the rotation part 42 in arbitrary rotation positions.

  As shown in FIG. 13, the antenna cage 1 configured as described above constitutes a part of the cage 100 installed along the outer wall 90 of the building.

  The eaves bowl 94 is provided with a water collector 95, and a call bowl 97 is connected to the water collector 95 via a first elbow 96. An upstream rod 91 is connected to the call rod 97 via a second elbow 98. The upstream side flange 91 is provided with a downstream side flange 92 spaced below the upstream side flange 91. The downstream end 92 has a downstream end connected to the drainage groove. The antenna rod 1 has an upper end connected to the lower end of the upstream rod 91 via the upper connecting member 40 and a lower end connected to the upper end of the downstream rod 92 via the lower connecting member 50.

  Note that the upstream side hook 91 and the downstream side hook 92 are fixed to the outer wall 90 via the hook retainer 99. In addition, the antenna rod 1 of the present embodiment is fixed by a rod holder 81 formed of a nonconductive resin. Thus, when installed, the antenna cage 1 of this embodiment constitutes a part of the cage installed along the outer wall 90 of the building.

  To install the antenna rod 1 of the present embodiment, the installer inserts the lower end of the upstream rod 91 into the inflow port 45 of the upper connector 40 to the back, and inserts the lower connector 50 into the downstream rod. 92. Thereafter, the lower connection body 50 is fixed to the outer wall 90 via the scissors holder 80.

  The antenna rod 1 in this state is supported by the outer wall 90 so as not to shift downward and to be rotatable with respect to the upstream rod 91.

  Next, the installer rotates the antenna rod 1 with respect to the upstream rod 91 and the downstream rod 92 so that the antenna 2 can receive the broadcast radio wave most strongly. At this time, since the outer cylinder 10 and the drain cylinder 12 are rotatable with respect to the holding body 60 of the fixed lower connection body 50, the builder 1 finely adjusts the direction of the antenna 2 Can do. After fine adjustment, the installer fixes the upper end of the antenna rod 1 with another rod holder 80.

  Next, the installer rotates the upper connection body 40 of the antenna rod 1 so that the bulging portion 420 runs along the building outer wall 90. Then, the installer rotates the lock portion 44 to lock the rotation of the upper connection body 40.

  The antenna rod 1 of the present embodiment is an antenna having drainage performance. That is, although the antenna has been conventionally installed on the roof, according to the rain gutter of the present embodiment, it can be integrated with the gutter 8, and the appearance of the building can be improved.

  Further, the antenna rod 1 of the present embodiment is provided at a position where the drain tube 12 is eccentric to the side opposite to the slot 21 of the slot antenna 20, so that rainwater flowing through the drain tube 12 has an adverse effect on the antenna 2. It can prevent giving.

  In addition, the mounting structure of the antenna rod 1 of the present embodiment is arranged eccentrically so that the drain cylinder 12 is separated from the slot 21 of the antenna 2, but the outer cylinder 10 extends along the building outer wall 90. It arrange | positions concentrically at the arrange | positioned eaves 8. For this reason, while preventing the performance of the antenna 2 from deteriorating, it can be made inconspicuous in appearance.

  In particular, since the outer cylindrical portion 10 of the present embodiment is formed in a cylindrical shape, the outer cylindrical portion 10 can be made less conspicuous by being arranged concentrically with the flange 8.

  Further, in the mounting structure of the antenna rod 1 of the present embodiment, the outer cylinder portion 10 includes an inner cylinder body 11 and an outer cylinder body 17 and is a double cylinder. For this reason, the antenna 2 can be arrange | positioned between the inner cylinder body 11 and the outer cylinder body 17, and it can prevent that the antenna 2 is exposed outside.

  Further, in the mounting structure of the antenna rod 1 according to the present embodiment, the drain tube portion 12 is formed in a substantially elliptical cross section, and the long axis direction is opposite to the slot 21 so that the long axis direction is along the cross section center line of the outer tube portion 10. It is provided at a position eccentric to the side. For this reason, while ensuring the flow rate of the drain cylinder part 12 above a certain level, a gap of a certain level or more is provided between the slot 21 of the slot antenna 20 provided on the outer peripheral part 16 of the outer cylinder part 10 and the drain cylinder part 12. Can be formed.

  Moreover, since the drain tube part 12 is formed in the cross-sectional substantially ellipse shape, the antenna rod 1 of this embodiment can make it difficult to clog fallen leaves and dust.

  Further, the antenna 樋 1 of the present embodiment includes a connection portion 4 for connecting to the 竪 樋 8. For this reason, it can unitize as an antenna which has drainage performance. Thereby, it can attach easily to a building irrespective of a construction worker's skill, and the finish after construction can be made more than fixed.

  In addition, the rain gutter of this embodiment may be attached when constructing a new gutter, or may be attached retrospectively by excising a part of the gutter already installed.

DESCRIPTION OF SYMBOLS 1 Antenna rod 10 Outer cylinder part 11 Inner cylinder 12 Drainage pipe part 16 Outer peripheral part 17 Outer cylinder 2 Antenna 20 Slot antenna 21 Slot 4 Connection part 40 Upper connection body 41 Water collection part 42 Rotation part 420 Expansion part 422 Connection tool 43 Cover portion 44 Lock portion 45 Inlet port 50 Lower connection body 51 Rotating body 56 Outlet port 60 Holding body 62 Self-weight receiving protrusion 7 Mounting member 8 ８１ 81 樋 Retaining tool 90 Outer wall 91 Upstream side ９２ 92 Downstream side 竪樋 93 Cable 94 樋 95 Catcher 97 Call

Claims (3)

A fence arranged along the outer wall of the building;
With an antenna 樋 connected to this 竪 樋,
The antenna cage is
An outer cylindrical portion provided concentrically on the collar;
A slot antenna provided along the outer cylindrical portion;
A drainage cylinder part provided in the outer cylinder part and connected in communication with the collar, and provided at a position eccentric to the opposite side of the slot of the slot antenna with respect to the center line of the collar. And a mounting structure for the antenna cage. The outer cylinder part is
An inner cylinder in which the antenna is provided on the outer periphery;
2. The mounting structure for an antenna rod according to claim 1, further comprising an outer cylindrical body provided concentrically on the outer side of the inner cylindrical body. The drainage cylinder part is formed in an approximately elliptical cross section, and is provided at a position eccentric to the opposite side of the slot so that the major axis direction is along the cross-sectional center line of the outer cylinder part. The mounting structure for an antenna rod according to claim 1 or 2.

Images