Antenna clamping device

Abstract

To provide an antenna clamping device capable of suppressing the generation of backlash noise. 【Solution means】The antenna clamping device includes a fixed bracket portion provided above and below the support pole so as to mediate the installation of the antenna device with respect to the support pole, an antenna installation bracket for mediating the front installation of the antenna device, a steering drive unit connected to the fixed bracket portion and driven to steer and rotate the antenna device, a tilting drive unit having an upper end hinged to the steering drive unit and a lower end hinged to an upper end portion of the rear surface of the antenna installation bracket via a pair of tilting link members and driven to tilt and rotate the antenna device, and further includes a backlash reduction design shape for reducing the generation of mechanical backlash noise due to the eccentric load of the antenna device.

Description

Technical Field

[0001] The present invention relates to a clamping apparatus for an antenna, and more particularly, to an antenna clamping apparatus that can efficiently arrange antenna devices in a dense installation space, can easily adjust the direction of the antenna devices, minimizes interference during direction adjustment according to the size of the antenna devices, and minimizes the generation of abnormal noises such as backlash noise when adjusting the directivity of the antenna devices.

Background Art

[0002] Generally, wireless communication technology, for example, MIMO (Multiple Input Multiple Output) technology, is a technology that epochally increases data transmission capacity using multiple antennas. In a transmitter, different data is transmitted through each transmitting antenna, and in a receiver, it is a Spatial multiplexing method that distinguishes transmitted data by appropriate signal processing.

[0003] Therefore, by simultaneously increasing the number of transmit and receive antennas, the channel capacity increases and more data can be transmitted. For example, when the number of antennas is increased to 10, about 10 times the channel capacity is ensured using the same frequency band compared to the current single-antenna system.

[0004] In 4G LTE-advanced, up to 8 antennas are used, products equipped with 64 or 128 antennas were launched in the pre-5G stage, and currently, base station devices with a much larger number of antennas are being developed in 5G, which is called Massive MIMO technology. While past Cell operations were two-dimensional, currently, with the introduction of Massive MIMO technology enabling 3D-Beamforming, it is preferably called FD-MIMO (Full Dimension).

[0005] In Massive MIMO technology, as the number of antennas increases, the number of transmitters and filters also increases accordingly. Nevertheless, due to the cost of leasing installation sites and spatial constraints, it is practical to make RF components (antennas / filters / power amplifiers / transceivers, etc.) small, light, and inexpensive. Massive MIMO requires high power output for coverage expansion, but the power consumption and heat generated by such high power output act as negative factors in reducing weight and size.

[0006] In particular, when installing a MIMO antenna, in which modules realizing RF elements and digital elements are coupled in a stacked structure, in a limited space, the need for compact and miniaturized designs for the multiple layers constituting the MIMO antenna arises in order to maximize ease of installation and space utilization, and there is a strong demand for the ability to freely adjust the direction of the antenna device installed on a single support pole. In response to the above demand, Korean Patent Publication No. 10-2095871 (published April 2, 2020) (hereinafter referred to as "prior art") discloses an "antenna clamping device" comprising a tilting unit for rotating the antenna device in the vertical direction and a steering unit for rotating the antenna device in the horizontal direction.

[0007] However, the aforementioned conventional technology had the problem that the range of rotation of the antenna equipment in the vertical direction by the tilting unit was small.

[0008] Furthermore, it has been pointed out that when adjusting the direction of relatively heavy antenna equipment by tilting or steering, backlash noise often occurs in the gear coupling section that is connected to allow tilting and steering rotation. [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] The present invention has been made to solve the above technical problems, and aims to provide an antenna clamping device that can tilt and rotate the antenna equipment vertically while simultaneously steering and rotating it horizontally, thereby maximizing the range of rotation in each direction.

[0010] In addition, the present invention also aims to provide an antenna clamping device that selectively includes extension bar assemblies to suit the number of antenna devices installed on the support pole and the installation space available to the user.

[0011] Another objective is to provide an antenna clamping device that can block the generation of mechanical backlash noise from each connecting part that is designed to allow tilting and steering rotation when adjusting the antenna direction, including tilting and steering rotation of relatively heavy antenna equipment.

[0012] Furthermore, another objective is to provide an antenna clamping device that allows antenna equipment to be installed in a concentrated manner so as to form two steering rotation points based on the antenna mounting bracket, and that enables a miniaturized product design.

[0013] The problems addressed by the present invention are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0014] An antenna clamping device according to one embodiment of the present invention includes: fixed bracket portions provided on the top and bottom of a support pole to mediate the installation of antenna equipment on the support pole; an antenna mounting bracket to mediate the forward installation of antenna equipment; a steering drive unit connected to the fixed bracket portion and driven to steer the antenna equipment; and a tilting drive unit whose upper end is hinged to the steering drive unit and whose lower end is hinged to the upper rear end of the antenna mounting bracket via a pair of tilting link members and driven to tilt the antenna equipment, and further includes a backlash reduction design shape to reduce the generation of mechanical backlash noise due to eccentric load of the antenna equipment.

[0015] Here, the fixing bracket portion may include an upper fixing bracket portion provided on the support pole and a lower fixing bracket portion provided on the support pole and located below the upper fixing bracket portion.

[0016] Furthermore, the backlash reduction design shape may be provided on a mounting rotation block that mediates a hinge connection so as to be tiltable and steerable with respect to a lower support bracket portion provided on the support pole, corresponding to the lower fixing bracket portion, with respect to the lower support bracket portion.

[0017] Furthermore, the backlash-reducing design shape may have a trapezoidal cross-section that includes at least the inclined surface that the steering hinge bushing, which is interposed between the mounting rotation block and the steering hinge inserted into the steering hinge mounting groove provided at the hinge connection point of the mounting rotation block, makes contact with.

[0018] Furthermore, the steering hinge mounting groove may be machined and formed into a groove shape with openings on the upper and lower sides, respectively, so that the upper steering hinge and the lower steering hinge are interposed via the upper vertical axis mounting portion and the lower vertical axis mounting portion formed on the lower support bracket portion.

[0019] Furthermore, the mounting rotation block includes a rotation block body whose rear end is hinged to the lower support bracket and whose front end is hinged to the lower rear end of the antenna mounting bracket, and a steering hinge cover coupled to the side surface of the rear end of the rotation block body, and the steering hinge mounting groove may be formed such that its inner surface has a circular cross-section when the steering hinge cover is coupled to the rotation block body.

[0020] Furthermore, the backlash-reducing design shape may have a trapezoidal cross-section that includes at least an inclined surface that is in contact with the tilting hinge bush interposed between the mounting rotation block and the tilting hinge, which is inserted into a tilting hinge mounting groove provided at the hinge connection point of the mounting rotation block.

[0021] Furthermore, the tilting hinge mounting groove may be machined and formed into a groove shape that opens toward one side and the other side, respectively, so that the one-side tilting hinge and the other-side tilting hinge are interposed via a lower horizontal bracket provided at the lower end of the antenna mounting bracket.

[0022] Furthermore, the mounting rotation block includes a rotation block body whose rear end is hinged to the lower support bracket and whose front end is hinged to the lower rear end of the antenna mounting bracket, and a tilting hinge cover coupled to the lower front end of the rotation block body, and the tilting hinge mounting groove may be formed such that its inner surface has a circular cross-section when the tilting hinge cover is coupled to the rotation block body.

[0023] Further, the backlash reduction design shape may be a trapezoidal cross-section including a surface with an inclined tooth surface locked in the rotation direction, which is formed by a mating portion on one side formed at both ends of the tilting shaft of the tilting drive unit and a mating portion on the other side formed at the end of the tilting link member coupled to the tilting shaft.

[0024] Further, the backlash reduction design shape may be a trapezoidal cross-section including a surface with an inclined tooth surface locked in the rotation direction, which is formed by a mating portion on one side formed at both ends of the steering shaft of the steering drive unit and a mating portion on the other side formed at the upper support bracket portion provided on the column pole corresponding to the upper fixing bracket portion to which the steering shaft is coupled.

[0025] Further, the backlash reduction design shape may be provided so as to include inclined surfaces that interfere with the tilting rotation direction or the steering rotation direction in the tilting damper interposed between the inner surface of the tilting drive unit housing of the tilting drive unit and the tilting drive motor, and the damper interposed between the inner surface of the steering upper housing of the steering drive unit and the steering drive motor, respectively.

[0026] Further, the steering drive unit may include an electrically driven steering drive motor, a steering shaft disposed vertically up and down, and a transmission gear assembly that receives a driving force from the steering drive motor and transmits it to the steering shaft. Among the transmission gear assemblies, the transmission gear meshing with the steering shaft may be disposed at a predetermined angle inclined forward or backward so as not to be orthogonal to the tilting rotation direction in the front-rear direction of the antenna device.

Advantages of the Invention

[0027] According to the antenna clamping device according to an embodiment of the present invention, various effects as follows can be achieved.

[0028] First, since a clamping device selectively provided with an extension bar assembly can be applied according to the number and installation space of antenna devices installed on a support pole by a user, it has the effect of maximizing the convenience of installation on the support pole and the utilization efficiency of space.

[0029] Second, when adjusting the antenna direction including the tilting rotation and steering rotation of the antenna device, which is a relatively heavy object, it has the effect of blocking the generation of mechanical backlash noise from each connecting part realized to be capable of tilting rotation and steering rotation.

[0030] Third, since the antenna device can be intensively installed so as to form two steering rotation points based on the antenna installation bracket, it has the effect of enabling miniaturized design of the product.

Brief Description of the Drawings

[0031] [Figure 1A] It is a front perspective view showing the state of installation of an antenna device on a support pole using an antenna clamping device according to an embodiment of the present invention. [Figure 1B] It is a rear perspective view showing the state of installation of an antenna device on a support pole using an antenna clamping device according to an embodiment of the present invention. [Figure 2A] It is a front perspective view showing an antenna clamping device according to an embodiment of the present invention. [Figure 2B] It is a rear perspective view showing an antenna clamping device according to an embodiment of the present invention. [Figure 3A] It is an exploded perspective view of FIG. 2A, and among the configurations of FIG. 2A, it is an exploded perspective view showing the state of connection of an antenna installation bracket to a tilting drive unit and a steering drive unit. [Figure 3B]Figure 2B is an exploded perspective view showing how the antenna mounting bracket is connected to the tilting drive unit and the steering drive unit, as part of the configuration of Figure 2B. [Figure 4A] Figure 2A is a detailed exploded perspective view. [Figure 4B] Figure 2B is a detailed exploded perspective view. [Figure 5A] This is a side view showing the installation of the antenna equipment in the configuration of Figure 2A, both with and without the extension bar assembly. [Figure 5B] Figure 2B is a plan view showing the installation of antenna equipment in both cases: without and with the extension bar assembly. [Figure 5C] This is a cross-sectional view along line BB shown in Figure 5A(b). [Figure 6] Figure 1 is a partially cut-out perspective view showing the installation of the detachable clamping gear panel, which clamps to the outer surface of the support pole, as part of the configuration shown in Figure 1. [Figure 7] Figures 4A and 4B show an exploded perspective view of the configuration, specifically the lower end of the antenna mounting bracket, the mounting bracket section on the support pole side, and the mounting rotation block that mediates their connection. [Figure 8A] Figure 7 shows a disassembled front view perspective of the mounting rotation block, as part of the configuration shown. [Figure 8B] Figure 7 shows a rear-section exploded perspective view of the mounting rotation block, which has been disassembled. [Figure 9] Figures 8A and 8B show a partial vertical cross-sectional view of the connecting portion used to explain the function of the backlash blocking bush. [Figure 10A] This is an exploded left-side perspective view showing the tilting drive unit and steering drive unit, which are part of the configuration of an antenna clamping device according to one embodiment of the present invention. [Figure 10B]This is an exploded perspective view of the right side showing the tilting drive unit and steering drive unit, which are part of the configuration of an antenna clamping device according to one embodiment of the present invention. [Figure 11A] This is a one-sided exploded perspective view showing the connection relationship between the tilting drive unit, the steering drive unit, and the tilting link member in the configuration of an antenna clamping device according to one embodiment of the present invention. [Figure 11B] This is an exploded perspective view from the other side showing the connection relationship between the tilting drive unit, the steering drive unit, and the tilting link member in the configuration of an antenna clamping device according to one embodiment of the present invention. [Figure 12] Figure 11A is a detailed exploded perspective view. [Figure 13A] This is a one-sided exploded perspective view showing the tilting drive unit, which is part of the configuration of an antenna clamping device according to one embodiment of the present invention. [Figure 13B] This is an exploded perspective view showing the tilting drive unit, one of the components of an antenna clamping device according to one embodiment of the present invention. [Figure 14] This is an exploded perspective view of the steering drive unit, which is part of the configuration of an antenna clamping device according to one embodiment of the present invention. [Figure 15] This is a perspective view showing the transmission gear assembly with the gear housing removed, as shown in Figure 14. [Figure 16] This is a plan view of the configuration shown in Figure 14, with the upper housing of the steering unit removed. [Figure 17] This is a perspective view showing how the direction of an antenna device is set by tilting and / or steering using an antenna clamping device according to one embodiment of the present invention. [Modes for carrying out the invention]

[0032] Hereinafter, an antenna clamping device according to one embodiment of the present invention will be described in detail with reference to the attached drawings.

[0033] When assigning reference numerals to the components in each drawing, it should be noted that, as far as possible, identical components should have the same reference numeral even if they are shown in other drawings. Furthermore, when describing embodiments of the present invention, if it is determined that a specific description of such known configurations or functions would hinder understanding of the embodiments of the present invention, such detailed description will be omitted.

[0034] In describing the components of the embodiments of the present invention, terms such as First, Second, A, B, (a), (b), etc., may be used. Such terms are merely for distinguishing a component from other components, and do not limit the nature, order, or procedure of that component. Furthermore, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the art to which the present invention pertains. Terms as defined in commonly used dictionaries should be interpreted as having the meaning consistent with their meaning in the context of the relevant art, and not in an ideal or overly formal sense unless explicitly defined in this application.

[0035] Figures 1A and 1B are front and rear perspective views showing the installation of an antenna device on a support pole using an antenna clamping device according to one embodiment of the present invention. Figures 2A and 2B are front and rear perspective views showing an antenna clamping device according to one embodiment of the present invention. Figures 3A and 3B are exploded perspective views of Figures 2A and 2B, showing the connection of the antenna mounting bracket to the tilting drive unit and steering drive unit in the configuration of Figures 2A and 2B. Figures 4A and 4B are perspective views of the respective details of Figures 2A and 2B, Figures 5A and 5B are side and top views showing the installation of the antenna equipment with and without the extension bar assembly, respectively, as shown in Figures 2A and 2B, Figure 5C is a cross-sectional view of line BB shown in Figure 5A(b), and Figure 6 is a partially cut perspective view showing the installation of the detachable clamping gear panel that clamps to the outer surface of the support pole, as shown in Figure 1.

[0036] As shown in Figures 1A to 6, an antenna clamping device 1 according to one embodiment of the present invention mediates the installation of antenna equipment A on a support pole P, and at the same time performs the function of enabling detailed directional settings to satisfy the beamforming design of the frequency beam oscillating through the antenna equipment A on a fixed support pole P.

[0037] More specifically, as shown in Figures 1A and 1B, the antenna clamping device 1 according to one embodiment of the present invention can be connected horizontally at a predetermined distance apart to the vertically mounted support pole P, via support pole installation brackets 50A, 50B, 80A, and 80B that are pre-provided around the outer periphery of the support pole P.

[0038] Here, the pole mounting bracket sections 50A, 50B, 80A, and 80B may include fixed bracket sections 50A and 50B provided above and below the pole P to mediate the installation of antenna equipment A on the pole P, and support bracket sections 80A and 80B fixedly installed on the pole P corresponding to the fixed bracket section 50A. The specific configuration and function of the fixed bracket sections 50A and 50B and the support bracket sections 80A and 80B will be described in more detail later.

[0039] The clamping device 1 realized in the embodiment of the present invention is described as being installed with antenna equipment A as an example for ease of understanding, but it should be understood that it includes not only antenna equipment A, but also all cases in which lighting fixtures (not shown), such as LED lighting devices and high-power sports lighting, are installed on the support pole P.

[0040] For example, by using the clamping device 1 realized in the embodiment of the present invention to mediate the installation of lighting fixtures in sports stadiums and the like, users can perform tilting and / or steering rotation operations in a desired direction.

[0041] Referring to Figures 1A and 1B, an antenna clamping device 1 according to one embodiment of the present invention can be installed via an extension bar assembly 60 that adjusts the installation distance of the antenna equipment A so that it is separated from the support pole P by a predetermined distance.

[0042] As shown in Figures 5A to 5C, the extension bar assembly 60 may be selectively provided depending on whether or not the antenna equipment A is installed at a distance from the support pole P. When the antenna equipment A is connected to the outer surface of the support pole P in a relatively close position without requiring the extension bar assembly 60, only the components corresponding to the extension bar assembly 60 can be attached and removed. When the extension bar assembly 60 is removed, the clamping gear panels 67 provided on the left and right horizontal bars 63, which will be described later, are directly attached to the upper support bracket section 80A and the lower support bracket section 80B, which will be described later, and then directly clamp the outer surface of the support pole P. At the same time, the support pole fixing bolts 52, which will be fastened to the upper fixing bracket section 50A and the lower fixing bracket section 50B, can be directly fastened to the upper support bracket section 80A and the lower support bracket section 80B.

[0043] Figures 1A and 1B show an embodiment equipped with the extension bar assembly 60 described above, while Figures 5A and 5B(a) show an embodiment in which the extension bar assembly 60 is removed.

[0044] Here, the extension bar assembly 60 may include an upper extension bar assembly (not indicated by a drawing reference numeral) provided at a height corresponding to the upper fixing bracket portion 50A described above, and a lower extension bar assembly (not indicated by a drawing reference numeral) provided at a height corresponding to the lower fixing bracket portion 50B. Since the upper extension bar assembly and the lower extension bar assembly are identical in all components except for their position, they do not need to be assigned different drawing reference numerals, and the description of either the upper extension bar assembly or the lower extension bar assembly can substitute for the description of the other.

[0045] On the other hand, the extension bar assembly 60 may include a pair of front and rear horizontal bars 61A and 61B that extend horizontally toward the left and right ends of the upper fixing bracket portion 50A and the lower fixing bracket portion 50B, and a left and right horizontal bar 63 that is positioned horizontally to the left and right to connect the rear ends of the pair of front and rear horizontal bars 61A and 61B.

[0046] Such an extension bar assembly 60 may also consist of a pair of upper and lower assemblies 60A and 60B, which surround the other side of the outer surface of the support pole P, corresponding to the upper and lower fixing bracket portions 50A and 50B respectively, which surround one side of the outer surface of the support pole P, although these are not shown by different reference numerals in the drawings.

[0047] In addition, as shown in Figures 2A and 2B, the extension bar assembly 60 extends a predetermined length through the left and right horizontal bars 63 towards the upper fixing bracket portion 50A and lower fixing bracket portion 50B provided on the support pole P, and the connection to the support pole P is completed by fastening support pole fixing bolts (52, see Figure 5C) inserted through from the upper fixing bracket portion 50A and lower fixing bracket portion 50B side to the bolt fastening holes 65 at the rear ends of the pair of front and rear horizontal bars 61A and 61B. The front ends of the pair of front and rear horizontal bars 61A and 61B to the left and right horizontal bars 63 may be fixed by support bracket fastening bolts 62 that simultaneously pass through the upper support bracket portion 80A and lower support bracket portion 80B, which will be described later, as shown in Figure 5C.

[0048] Here, as shown in Figures 2A and 2B, the inner surfaces of the left and right horizontal bars 63 facing the support pole P are provided with slot-shaped gear panel mounting grooves (85, see Figure 6), and a clamping gear panel 67, which has multiple gear teeth arranged in a "V" shape to clamp the outer surface of the support pole P and prevent it from slipping, can be fixed to the gear panel mounting grooves 85.

[0049] Here, the clamping gear panel 67 does not necessarily have to be formed in a "V" shape; a shape that closely matches the outer surface of the support pole P is preferred. When the clamping gear panel 67 is "V" shaped, it has the advantage of being applicable to support poles P of various outer diameters.

[0050] The clamping gear panel 67 is not limited to being provided on the left and right horizontal bars 63. When it is provided directly on the support pole P without the extension bar assembly 60, it can also be provided on the inner surfaces of the upper support bracket portion 80A and the lower support bracket portion 80B, which will be described later, as shown in Figure 6.

[0051] In this case, as shown in Figure 6, the clamping gear panel 67 is positioned such that, after being inserted into the gear panel mounting groove 85, the outer end face of the intermediate portion where gear teeth are not formed matches the outer surfaces of the upper support bracket portion 80A and the lower support bracket portion 80B. The clamping gear panel 67 can then be fixed by gear panel fixing screws 69 that are fastened to screw fixing holes 87 formed adjacent to the upper or lower portion. At this time, while the body portion 69A of the gear panel fixing screw 69 is inserted and fastened into the screw fixing hole 87, the stepped surface of the head portion 69B, which has a larger diameter than the body portion 69A, overlaps with the outer end face of the clamping gear panel 67 where gear teeth are not formed, thereby preventing the clamping gear panel 67 from detaching from the gear panel mounting groove 85.

[0052] On the other hand, the front ends of the pair of front and rear horizontal bars 61A and 61B of the extension bar assembly 60 may be provided with an upper support bracket portion 80A and a lower support bracket portion 80B, as shown in Figures 3A and 3B.

[0053] The method of connecting the front ends of the pair of front and rear horizontal bars 61A and 61B to the upper support bracket section 80A and the lower support bracket section 80B is the same as the method of connecting the rear ends of the pair of front and rear horizontal bars 61A and 61B to the upper fixing bracket section 50A and the lower fixing bracket section 50B, differing only in whether the support pole fixing bolt 52 or the support bracket fastening bolt 62 is used, as described above, so a detailed explanation is omitted.

[0054] The left and right ends of the upper support bracket portion 80A and the lower support bracket portion 80B can be firmly connected via a pair of vertical support frames 70 arranged vertically, as shown in Figures 3A and 3B.

[0055] The vertical support frame 70 can simultaneously connect and fix the front ends of a pair of front and rear horizontal bars 61A and 61B, which are part of the upper assembly 60A and lower assembly 60B of the extension bar assembly 60, in the vertical direction.

[0056] Here, the vertical support frame 70 has an "L"-shaped horizontal cross-section so as to simultaneously support the side end faces and rear end faces of the upper support bracket portion 80A and the lower support bracket portion 80B, and the front ends of the pair of front and rear horizontal bars 61A and 61B described above can pass through and support the portion that supports the rear end faces of the upper support bracket portion 80A and the lower support bracket portion 80B.

[0057] Thus, the upper support bracket portion 80A and the lower support bracket portion 80B are provided at independent positions separated vertically along the longitudinal direction of the support pole P, but the addition of a pair of vertical support frames 70 creates a rectangular parallelepiped frame structure that allows for a strong and stable connection without any play in the left-right and front-back directions.

[0058] Therefore, by driving the tilting drive unit 100 and steering drive unit 200 described later, it is possible to prevent the induction of mechanical backlash noise due to physical assembly tolerances when the heavy antenna equipment A tilts and rotates in the front-to-back direction and steers and rotates in the left-to-right direction.

[0059] The upper support bracket portion 80A and the lower support bracket portion 80B may be provided with an upper vertical axis mounting portion 81A and a lower vertical axis mounting portion 81B that protrude forward to provide two steering rotation points S1 and S2 necessary when steering the antenna equipment A, as shown in Figures 3A and 3B.

[0060] The upper vertical axis mounting sections 81A may be provided as a pair, each protruding vertically, or the intermediate portion may be provided as an open space. The steering shaft 240, which is part of the steering drive unit 200 described later, can be interposed and connected in the open space between the pair of upper vertical axis mounting sections 81A.

[0061] The lower vertical axis mounting portion 81B may also be provided as a pair protruding from the top and bottom, and the intermediate portion may be provided as an open space. The rear end of the mounting rotation block 400, which will be described later, can be interposed and connected in the open space between the pair of lower vertical axis mounting portions 81B.

[0062] More specifically, the upper vertical axis mounting section 81A and the lower vertical axis mounting section 81B, as shown in Figures 4A and 4B, provide two steering rotation points S1 and S2, and can be configured such that the center of the steering shaft 240 of the steering drive unit 200 and the hinge connection point of the mounting rotation block 400 are located on the same vertical line in the vertical direction.

[0063] On the other hand, as shown in Figures 4A and 4B, the tilting drive unit 100 can be hinge-connected to the lower part of the steering drive unit 200 via a unit connecting hinge (117, see Figures 11A to 12 described later).

[0064] The fact that the steering drive unit 200 and the tilting drive unit 100 are hinged together means that, while the steering drive unit 200 is fixed relative to the upper end of the antenna mounting bracket 90, which is positioned in front to mediate the installation of the antenna equipment A, during tilting rotation, the tilting drive unit 100 is also provided to tilt and rotate relative to it within a predetermined angular range.

[0065] In addition, as shown in Figures 4A and 4B, the tilting drive unit 100 can be connected to the steering drive unit 200 and the antenna mounting bracket 90 so as to have at least three tilting rotation points T1, T2, and T3.

[0066] The tilting pivot point indicated by "T1" (hereinafter abbreviated as "T1 pivot point") refers to the axial direction of the tilting shaft 140 in the configuration of the tilting drive unit 100, and becomes the pivot center point of the tilting link members 300A and 300B, which are connected to it and will be described later.

[0067] In addition, the tilting rotation point indicated by "T2" (hereinafter abbreviated as "T2 rotation point") may include the rotation path traced by the other ends of the tilting link members 300A and 300B, one end of which is connected to the T1 rotation point, and may also be the rotation radius traced by the upper end of the antenna mounting bracket 90 connected thereto. Here, the rotation radius of the upper end of the antenna mounting bracket 90 can represent the tilting path of the antenna equipment A.

[0068] On the other hand, the tilting rotation point indicated by "T3" (hereinafter abbreviated as "T3 rotation point") may be the hinge connection point of the unit connecting hinge 117 between the tilting drive unit 100 and the steering drive unit 200. The unit connecting hinge 117 may be configured to allow the tilting drive unit 100 to rotate freely relative to the steering drive unit 200.

[0069] Here, assuming that the steering drive unit 200 is a component fixed relative to the upper vertical axis mounting portion 81A as described above, the tilting drive unit 100 may be a component that rotates relative to the lower part of the steering drive unit 200.

[0070] When the upper ends of the tilting link members 300A and 300B tilt forward, the tilting drive unit 100 can rotate a predetermined angle backward with respect to the T3 rotation point due to the load of the antenna equipment A, which is a heavy object connected to them. In other words, when the upper ends of the antenna equipment A tilt forward due to the tilting link members 300A and 300B, the center of gravity of the antenna equipment A moves backward, and in order to compensate for this movement of the center of gravity, the tilting drive unit 100 rotates relative to the steering drive unit 200 with respect to the T3 rotation point.

[0071] Here, the tilting drive unit 100 and the steering drive unit 200 do not necessarily have to be connected by a single rotation point, the T3 rotation point.

[0072] For example, although not shown in the diagram, it is also possible to add another link member type component identical in form to the tilting link members 300A and 300B and hinge-connect them so that tilting rotation points are added to each end. However, when connecting the tilting drive unit 100 and the steering drive unit 200 with a link member type, all components such as hinges must be provided in pairs, which has the disadvantage of increasing the number of parts.

[0073] In the case of the antenna clamping device 1 according to one embodiment of the present invention, by providing a hinge connection between the tilting drive unit 100 and the steering drive unit 200 using only a pair of unit connecting hinges 117 without adding any link member type components, it is possible to miniaturize the overall product design and have the advantage of reducing the number of parts.

[0074] On the other hand, the T3 turning point is assumed to be located at least behind the T1 and T2 turning points when the T1 and T2 turning points are located on a straight line that is vertically perpendicular to each other, as shown in Figures 4A and 4B. More preferably, the T3 turning point may be designed to be located at least in front of the two steering turning points S1 and S2 located on a straight line that is vertically perpendicular to each other. Hereinafter, the turning point indicated by S1 will be abbreviated as the "S1 turning point" and the turning point indicated by S2 will be abbreviated as the "S2 turning point".

[0075] Therefore, assuming that the tilting link members 300A and 300B are stopped in the position before they are tilted, the T3 rotation point can be located behind the imaginary straight line connecting the T1 rotation point and the T2 rotation point, and in front of the two steering rotation points S1 and S2.

[0076] Here, since antenna equipment A is a predetermined weight, when adjusting the direction of tilting rotation of antenna equipment A, mechanical backlash noise is generated from the mechanical connection configuration of the connection point (T1 rotation point) of the tilting link members 300A and 300B. However, when the T3 rotation point is close to a virtual straight line connecting the T1 and T2 rotation points, the generation of the mechanical backlash noise increases. On the other hand, when the T3 rotation point coincides with a virtual straight line connecting the two steering rotation points S1 and S2, or is located further back, assuming that the protruding lengths of the upper vertical axis mounting part 81A and the lower vertical axis mounting part 81B are the same, the steering rotation angle can be limited to a predetermined range by the surrounding components.

[0077] Therefore, more preferably, assuming that the tilting link members 300A and 300B are stopped in the position before they are tilted, the T3 rotation point is set to be located behind the imaginary straight line connecting the T1 rotation point and the T2 rotation point, and to be at the maximum distance from the imaginary straight line connecting the two steering rotation points S1 and S2. In this case, it may be set to a position where no mechanical backlash noise is generated. The causes of the mechanical backlash noise and the principles for preventing it will be explained in more detail later.

[0078] On the other hand, as shown in Figures 1A to 4B, the antenna device A can be connected such that, via the antenna mounting bracket 90, it receives tilting rotation and / or steering rotation driving force from the tilting drive unit 100 and the steering drive unit 200, causing its upper end to tilt and rotate in the front-rear direction around the antenna tilting rotation point (T4, hereinafter abbreviated as "T4 rotation point") at its lower end, or causing both the left and right ends to steer and rotate in the front-rear direction around two steering rotation points S1 and S2.

[0079] More specifically, the antenna mounting bracket 90 may have its upper end connected to the upper support bracket portion 80A at at least one location via a pair of tilting link members 300A and 300B and a tilting drive unit 100 and a steering drive unit 200 so as to be steerable, and its lower end connected to the lower support bracket portion 80B at at least one location so as to be steerable.

[0080] The antenna mounting bracket 90 may include two mounting extensions 94 that extend outward from a rectangular panel-shaped base bracket panel 91, as shown in Figures 3A and 3B.

[0081] Multiple bolt holes 95 are formed in the base bracket panel 91 and the mounting extension portion 94. This is to diversify the positions of the multiple bolt holes 95, allowing the antenna equipment A to be fastened to an appropriate position on the base bracket panel 91 according to its size and shape. Antenna fastening bolts (94, see Figure 4A) pass through the multiple bolt holes 95 and are fastened to bolt fastening holes (not shown) formed on the back of the antenna equipment A, thereby enabling the antenna equipment A to be firmly attached to the antenna mounting bracket 90.

[0082] In addition, the antenna mounting bracket 90 may further include four diagonal mounting portions 92 that are integrally extended outward diagonally from each corner of the base bracket panel 91, and each of the diagonal mounting portions 92 may have an additional bolt fastening hole 93.

[0083] On the other hand, the antenna mounting bracket 90 has multiple antenna mounting fastening holes 96 that penetrate in the front-to-back direction, and the back of the antenna equipment A can be firmly attached via multiple antenna fixing screws 97 that are fastened through the antenna mounting fastening holes 96.

[0084] An upper horizontal bracket 98U may be fixed to the rear of the two upper diagonal mounting sections 92 of the four diagonal mounting sections 92, and a lower horizontal bracket 98D may be fixed to the rear of the two lower diagonal mounting sections 92 of the four diagonal mounting sections 92. In particular, the lower horizontal bracket 98D can be bolted to an additional bolt fastening hole 93 formed in the antenna mounting bracket 90 via an additional mounting bolt 98S that passes through it from front to back.

[0085] The upper horizontal bracket 98U acts as an intermediary for the hinge connection between a pair of tilting link members 300A and 300B and the T2 rotation point formed at their upper ends relative to the base bracket panel 91. In particular, hinge intervening holes 301 and 302 for hinge connection may be provided at each end of the pair of tilting link members 300A and 300B corresponding to the T1 and T2 rotation points, respectively.

[0086] Furthermore, the lower horizontal bracket 98D plays a role in mediating the hinge connection to the T4 pivot point formed on the mounting pivot block 400 relative to the base bracket panel 91.

[0087] The upper horizontal bracket 98U and the lower horizontal bracket 98D may be formed to be elongated in the left-right horizontal direction.

[0088] The upper horizontal bracket 98U has a pair of upper hinge connecting ends 99U extending rearward, and can be hinge-connected to the tilting link members 300A and 300B via hinge interposing holes 302 corresponding to the T2 rotation point of the tilting link members 300A and 300B, interposed by link connecting hinges 311 and 312.

[0089] The lower horizontal bracket 98D has a pair of lower hinge connecting ends 98D-1 extending rearward, which can be hinged to the front end of the mounting rotation block 400 via a T4 rotation point through a pair of block tilting hinges 440L and 440R, which will be described later.

[0090] The hinge connection configuration of the mounting rotation block 400 to the lower hinge connecting end 99D of the lower horizontal bracket 98D will be described in more detail in the following section, which explains the principle for blocking mechanical backlash noise.

[0091] A brief explanation of how to install an antenna clamping device 1 according to one embodiment of the present invention, which has the above configuration, on a support pole P, and its advantages, is as follows.

[0092] In other words, as shown in Figures 5A to 5C, the antenna clamping device 1 according to the present invention can selectively attach the extension bar assembly 60 to the support pole P and tightly connect it to the support pole P, or change the installation position of the antenna equipment A by moving it a predetermined distance away from the support pole P, depending on the surrounding conditions of the support pole P.

[0093] For example, as shown in Figures 5A and 5B, if the extension bar assembly 60 is not provided (see (a) in each drawing), the antenna equipment A is coupled relatively close to the support pole P. Therefore, if there are no surrounding interference components (such as other antenna equipment), the antenna equipment A can be installed in a concentrated manner to minimize interference when adjusting direction. If the extension bar assembly 60 is provided (see (b) in each drawing), the antenna equipment A can be dispersed and installed at a predetermined distance (see reference numeral "D" in the drawing) further away from the support pole P so as not to be interfered with by surrounding interference components (such as other antenna equipment).

[0094] The extension bar assembly 60 may be connected to the support pole P in a manner such as shown in Figure 5C, where a pair of front and rear horizontal bars 61A and 61B extend a predetermined length through the left and right horizontal bars 63 to the upper fixing bracket portion 50A and the lower fixing bracket portion 50B, and support pole fixing bolts 52 inserted through from the upper fixing bracket portion 50A and the lower fixing bracket portion 50B side are fastened to bolt fastening holes 65 at the ends of the pair of front and rear horizontal bars 61A and 61B, respectively.

[0095] Figure 7 is an exploded perspective view of the configuration in Figures 4A and 4B, showing the lower end of the antenna mounting bracket, the mounting bracket portion on the support pole side, and the mounting rotation block that mediates their connection. Figures 8A and 8B are exploded perspective views of the front and rear portions of the mounting rotation block, respectively, from the configuration in Figure 7. Figure 9 is a partial vertical cross-sectional view of the connection portion, which illustrates the function of the backlash blocking bush, from the configuration in Figures 8A and 8B.

[0096] An antenna clamping device 1 according to one embodiment of the present invention may further include a backlash reduction design shape to block mechanical backlash noise phenomena that may occur due to eccentric loads of the antenna equipment A relative to the direction of gravity when the antenna equipment A, which is relatively heavy, is tilted and / or steered to adjust its direction.

[0097] In particular, since the antenna clamping device 1 according to one embodiment of the present invention is applied scattered at multiple locations of connecting parts related to tilting rotation or steering rotation, the backlash reduction design shape will be described in more detail for that part.

[0098] As shown in Figures 7 to 9, an antenna clamping device 1 according to one embodiment of the present invention is hinged at two points to two steering rotation points S1 and S2 located in the same vertical direction, in order to enable smooth steering rotation of the antenna device A, and also hinged to four tilting rotation points T1, T2, T3, and T4 located in different horizontal directions to the left and right, in order to enable smooth tilting rotation of the antenna device A.

[0099] Here, of the two steering rotation points S1 and S2, the upper rotation point S1 becomes a hinge point that steers the steering drive unit 200 itself (described later) in the left-right direction, and the lower rotation point S2 of the two steering rotation points S1 and S2 becomes a hinge point that steers the lower end of the antenna mounting bracket 90 to which the antenna equipment A is attached in the left-right direction, thereby enabling more stable steering rotation of the antenna equipment A.

[0100] More specifically, for hinge connection with the steering drive unit 200 via the upper pivot point S1, steering hinge connecting bolts 82 are fitted and fastened vertically to the upper and lower ends of a pair of upper vertical axis mounting parts 81A, respectively, so that they can be fastened to both ends of the steering shaft (240, see Figure 10A). A more detailed explanation of the connection of the steering hinge connecting bolts 82 to the steering shaft 240 will be given later.

[0101] On the other hand, of the four tilting rotation points T1, T2, T3, and T4, the T1 and T2 rotation points become hinge points (fixed points and rotation points) that rotate the upper end of the antenna mounting bracket 90, which mediates the coupling of the antenna equipment A by the rotational movement of the tilting link members 300A and 300B, as described above.

[0102] Then, as described above, the T3 rotation point becomes the hinge point for relative rotation between the tilting drive unit 100 and the steering drive unit 200.

[0103] Finally, the T4 pivot point becomes a hinge point that rotatably supports the lower end of the antenna mounting bracket 90 relative to the mounting pivot block 400, enabling the tilting rotation operation of the antenna mounting bracket 90 that mediates the coupling of the antenna equipment A, as described above.

[0104] For more details, see Figures 8A and 8B. The mounting rotation block 400 may include a rotation block body 410 whose rear end is hinged to the lower support bracket portion 80B and whose front end is hinged to the lower rear end of the antenna mounting bracket 90 (i.e., the lower horizontal bracket 98D), a steering hinge cover 420 coupled to the side of the rear end of the rotation block body 410, and a tilting hinge cover 430 coupled to the lower front end of the rotation block body 410.

[0105] In addition, the mounting rotation block 400 may further include steering hinge mounting grooves 425A and 425B, which are machined to form grooves that open toward the upper and lower sides of the rotation block body 410 and the steering hinge cover 420, respectively, and an upper steering hinge 450U-1 and a lower steering hinge 450D-1, which are interposed in the upper and lower steering hinge mounting grooves 425A and 425B, respectively, via upper hinge mounting holes 82h-U and lower hinge mounting holes 82h-D formed in the lower vertical axis mounting portion 81B, respectively, to support steering rotation.

[0106] Here, the upper and lower steering hinge mounting grooves 425A and 425B may be formed such that, when the steering hinge cover 420 is coupled to the rotating block body 410, the inner surface generally has a circular cross-section, and the grooves are machined to have a shape in which the diameter gradually increases towards the upper and lower sides, respectively. Therefore, the upper and lower steering hinge mounting grooves 425A and 425B may have a trapezoidal vertical cross-section in which the length of the side of the part corresponding to the inner surface is relatively smaller than the length of the side of the part corresponding to the outer end.

[0107] In addition, it is preferable that the upper steering hinge 450U-1 and the lower steering hinge 450D-1 are formed in such a shape that, except for the parts fastened to the upper hinge mounting hole 82h-U and the lower hinge mounting hole 82h-D, the insertion parts that are inserted into the upper and lower steering hinge mounting grooves 425A and 425B described above are formed to correspond to the machined groove shapes of the upper and lower steering hinge mounting grooves 425A and 425B, and are molded together.

[0108] Here, an upper steering hinge bush 450U-2 and a lower steering hinge bush 450D-2 can be interposed between the upper steering hinge 450U-1 and the lower steering hinge 450D-1, and the upper and lower steering hinge mounting grooves 425A and 425B, respectively.

[0109] On the other hand, the mounting rotation block 400 may further include one-sided and other-sided tilting hinge mounting grooves 435A and 435B, which are machined to form groove shapes that open toward one side and the other side of the rotation block body 410 and the tilting hinge cover 430, respectively, and one-sided tilting hinge 440L-1 and other-sided tilting hinge 440R-1, which are interposed in the one-sided and other-sided tilting hinge mounting grooves 435A and 435B, respectively, via lower hinge holes 98D-1h formed in a pair of lower hinge connecting ends 98D-1 of the lower horizontal bracket 98D, to support tilting rotation.

[0110] Here, the tilting hinge mounting grooves 435A and 435B on one side and the other side may be formed such that, when the tilting hinge cover 430 is coupled to the rotating block body 410, the inner surface generally has a circular cross-section, and the grooves are machined to have a shape in which the diameter gradually increases towards the one side and the other side, respectively. Therefore, the tilting hinge mounting grooves 435A and 435B on one side and the other side may have a trapezoidal vertical cross-section in which the length of the side of the part corresponding to the inner surface is relatively smaller than the length of the side of the part corresponding to the outer end.

[0111] It is preferable that the one-sided tilting hinge 440L-1 and the other-sided tilting hinge 440R-1 are formed in a shape that allows them to be molded together, except for the portion that is fastened to the lower hinge hole 98D-1h on the one-sided and other-sided sides, so that the insertion portion that is inserted into the aforementioned one-sided and other-sided tilting hinge installation grooves 435A and 435B corresponds to the machined groove shape of the one-sided and other-sided tilting hinge installation grooves 435A and 435B.

[0112] Here, a one-sided tilting hinge bush 440L-2 and a other-sided tilting hinge bush 440R-2 can be interposed between the one-sided tilting hinge 440L-1 and the other-sided tilting hinge 440R-1, and the one-sided and other-sided hinge mounting grooves 435A and 435B, respectively.

[0113] Generally, a bush is a frictional wear component that interposes between two relatively moving objects to guide their connection or support the motion characteristics between them. In particular, when a bush supports a rotating object relative to a stationary object, a rectangular groove with one end open is usually machined into the stationary object, a portion of the rotating object is inserted into the groove, and a bush with a shape corresponding to the groove is manufactured and interposed at the insertion point of the rotating object. This prevents the rotating object from directly contacting the inner surface of the groove in the stationary object during motion. For this reason, bushes are generally formed in a hollow cylindrical shape with one end closed.

[0114] However, bushes with the shape described above (i.e., grooves with a rectangular vertical cross-section) have one end filled in, which presents a problem in that it is difficult to accommodate tolerances in the direction of rotation when assembly tolerances occur between the groove of the fixed object and the insertion part of the rotating object.

[0115] In addition, while it is common practice to always include assembly tolerances during the manufacturing of parts to ensure smooth assembly between them, if a bushing provided to support tilting and steering rotation movements for directional adjustment of an antenna device A, which is a predetermined weight, is manufactured with a rectangular groove shape as a general type as described above and with predetermined assembly tolerances, there is a risk that the bushing itself may be crushed and damaged by the unique eccentric loads added by the tilting and steering rotations, or that mechanical backlash noise may occur.

[0116] In one embodiment of the present invention, the mounting rotation block 400 may further include a backlash-reducing design shape in order to preemptively block the generation of the mechanical backlash noise described above.

[0117] More specifically, the backlash-reducing design shape involves designing the upper steering hinge bushings 450U-2 and 450D-2, which are interposed in the upper and lower steering hinge mounting grooves 425A and 425B related to the steering rotation operation of antenna equipment A, and the upper steering hinge 450U-1 and lower steering hinge 450D-1, respectively, to have a trapezoidal vertical cross-section. In addition, the one-sided tilting hinge bushings 440L-2 and 440R-2, which are interposed in the one-sided and other-sided tilting hinge mounting grooves 435A and 435B related to the tilting rotation operation of antenna equipment A, and the one-sided tilting hinge 440L-1 and other-sided tilting hinge 440R-1, respectively, to have a trapezoidal horizontal cross-section.

[0118] Thus, given that antenna device A is a predetermined weight, the principle for minimizing the mechanical backlash noise phenomenon caused by eccentric loads that inevitably occur due to the specific steering rotation and tilting movements performed by adjusting the direction of antenna device A can be briefly explained with reference to Figure 9 as follows.

[0119] For reference, the mechanical backlash noise phenomenon described above is understood to occur at steering rotation points S1 and S2, which are provided to support the load in the front-to-back direction, which is the tilting direction of antenna equipment A, a predetermined weight, when antenna equipment A is tilted and rotated. Conversely, it is understood to occur at tilting rotation points T1, T2, T3, and T4, which are provided to support the centrifugal force load in the left-to-right direction, which is the steering direction of antenna equipment A, a predetermined weight, when antenna equipment A is steered and rotated.

[0120] Referring to Figure 9, when the antenna equipment A of the mounting rotation block 400 is tilted and rotated in the front-rear direction, the load of the heavy antenna equipment A acts to tilt forward and become eccentric on the virtual vertical line formed by the steering rotation points S1 and S2 of the lower vertical axis mounting section 81B.

[0121] An antenna clamping device 1 according to one embodiment of the present invention is designed to accommodate the eccentric load acting when adjusting the direction of the antenna equipment A, and the shapes of the upper and lower steering hinge mounting grooves 425A and 425B, the insertion points of the upper steering hinge 450U-1 and lower steering hinge 450D-1 inserted therein, and the upper steering hinge bush 450U-2 and lower steering hinge bush 450D-2 interposed between them are formed to have the trapezoidal cross-section described above.

[0122] Therefore, even when there are assembly tolerances between the upper steering hinge 450U-1 and lower steering hinge 450D-1, which are inserted and installed in the upper and lower steering hinge mounting grooves 425A and 425B, and the upper steering hinge bushings 450U-2 and lower steering hinge bushings 450D-2 interposed between them, the problem of loss of rotational support function caused by the bushings 450U-2 and 450D-2 collapsing into an elliptical shape is prevented, and the rotational support function can be maintained while deforming along the plane of the trapezoidal cross-section that is inclined with respect to the steering rotation points S1 and S2 when supporting an eccentric load.

[0123] Furthermore, the eccentric load during the tilting operation of antenna equipment A coincides with the inclined surfaces of the upper and lower steering hinge mounting grooves 425A and 425B, as well as the upper steering hinge 450U-1 and lower steering hinge 450D-1 and the upper steering hinge bushings 450U-2 and lower steering hinge bushings 450D-2 interposed therein. This has the advantage of preemptively blocking the generation of mechanical backlash noise that occurs during tilting operation.

[0124] Figures 10A and 10B are exploded perspective views of the left and right sides of the configuration of the antenna clamping device according to one embodiment of the present invention, showing the tilting drive unit and the steering drive unit.

[0125] An antenna clamping device 1 according to one embodiment of the present invention, as shown in Figures 10A and 10B, may include a tilting drive unit 100 and a steering drive unit 200 coupled to the front of an extension bar assembly 60 or an upper support bracket portion 80A or a lower support bracket portion 80B that mediates mounting to a support pole P for adjusting the directionality of the antenna equipment A.

[0126] The tilting drive unit 100 may include a tilting drive unit housing 110 having an internal space 110S in which a tilting drive unit 130 (described later) is housed, and a tilting drive unit housing cover 120 that shields one open side of the tilting drive unit housing 110.

[0127] The tilting drive unit housing cover 120 can be connected to the open end of the tilting drive unit housing 110 by a plurality of cover assembly screws 125.

[0128] The tilting drive unit housing 110 and the tilting drive unit housing cover 120 may each have tilting shaft connecting holes 111h and 121h formed in them so as to communicate with the internal space 110S and expose both left and right ends of the tilting shaft 140, which is one of the components of the tilting drive unit 130 described later, to the outside.

[0129] Both ends of the tilting shaft 140, which are exposed to the outside through the tilting shaft connecting holes 111h and 121h, are connected to tilting link members 300A and 300B, so that the tilting driving force transmitted from the tilting drive motor 150 (described later) can be transmitted to the tilting link members 300A and 300B.

[0130] On the other hand, the steering drive unit 200 may include a steering lower housing 210 on which a steering drive unit 230 (described later) is mounted and coupled, and a steering upper housing 220 that shields the steering drive unit 230 mounted and coupled to the steering lower housing 210.

[0131] The upper steering housing 220 can be coupled to the upper edge of the lower steering housing 210 by a plurality of housing assembly screws 225, so as to cover the upper side of the lower steering housing 210.

[0132] The upper steering housing 220 and the lower steering housing 210 may each communicate with a space (not shown in the drawing reference numerals) in which a steering drive unit 230 is installed, and steering shaft connecting holes (the lower one is not shown, 221h) may be formed so that the upper and lower ends of the steering shaft 240, which is one of the components of the steering drive unit 230 described later, are exposed to the outside.

[0133] Both ends of the steering shaft 240, exposed to the outside through a steering shaft connecting hole (not shown, 221h), are connected to steering hinge connecting bolts 82 provided on the upper vertical axis mounting section 81A, allowing the steering drive unit 200 itself to rotate in a steering motion by the steering driving force transmitted from the steering drive motor 250, which will be described later.

[0134] Figures 11A and 11B are exploded perspective views showing the connection relationship between the tilting drive unit, the steering drive unit, and the tilting link member in one embodiment of the antenna clamping device of the present invention, and Figure 12 is a detailed exploded perspective view of Figure 11A.

[0135] On the other hand, the tilting drive unit 100 and the steering drive unit 200 can be hinge-connected via the unit connecting hinge 117 at the hinge center point corresponding to the T3 rotation point, as shown in Figures 10A and 10B.

[0136] For this purpose, hinge through ends 113 and 123 are formed on both the left and right sides of the upper end of the tilting drive housing 110 and the upper end of the tilting drive housing cover 120, respectively, and hinge through holes 114 and 124 are formed in each hinge through end 113 and 123 so that a pair of unit connecting hinges 117 can be fastened to them. Hinge fastening ends 213 are formed on both the left and right sides of the lower end of the steering lower housing 210, and hinge fastening holes 214 may be formed in the hinge fastening ends 213 so that the unit connecting hinges 117, which pass through the hinge through holes 114 and 124 of the hinge through ends 113 and 123, can be fastened to them.

[0137] On the other hand, the tilting shaft 140 and the steering shaft 240 receive driving force from the tilting drive motor 150 and the steering drive motor 250, respectively, and function as drive force transmission units that enable the tilting rotation drive and steering rotation drive of the tilting drive unit 100 and the steering drive unit 200. At the same time, they are components that also play a role in supporting the load of the antenna equipment A, which is a heavy object, in the tilting direction and steering direction, respectively, when the antenna equipment A is tilting and steering.

[0138] Therefore, the antenna clamping device 1 according to one embodiment of the present invention may further include a design shape for reducing backlash at the power connection point between the tilting shaft 140 and the steering shaft 240.

[0139] More specifically, the design shape for reducing backlash can be achieved as follows.

[0140] In other words, the tilting shaft 140 and the steering shaft 240 are also susceptible to mechanical backlash noise when adjusting the direction of the antenna equipment A. In one embodiment of the present invention, the antenna clamping device 1 may further include one-sided type fitting parts 143, 243 and other-sided type fitting parts (303, 83; see Figure 4A for reference numeral "83") which have trapezoidal cross-sections where the ends of the tilting shaft 140 and the steering shaft 240 and the tilting link members 300A, 300B and vertical axis mounting parts 81A, 81B connected thereto are inclined surfaces with respect to each rotation axis direction.

[0141] More specifically, on both the left and right end faces corresponding to the T1 rotation point of the tilting shaft 140, a one-sided mating portion 143 may be formed, in which tooth surfaces and tooth valleys that lock in the circumferential direction are repeated, except for the central portion. In the central portion of the one-sided mating portion 143, a bolt fastening hole 145 may be formed into which a link assembly bolt 305 for bolting together the tilting link members 300A and 300B is inserted and fastened.

[0142] In addition, on the inner surfaces of the tilting link members 300A and 300B corresponding to the T1 rotation point, a mating portion 303 on the other side may be formed, in which tooth surfaces and tooth valleys that engage in the circumferential direction are repeated, except for the central portion. A bolt through-hole 301 through which a link assembly bolt 305 passes may be formed in the central portion of the mating portion 303.

[0143] On the other hand, the upper and lower end surfaces of the steering shaft 240 corresponding to the S1 and S2 rotation points may each have a one-sided mating portion 243 formed thereon, except for the central portion, in which tooth surfaces and tooth valleys that lock in the circumferential direction are repeated. The central portion of the one-sided mating portion 243 may have a bolt fastening hole 245 into which hinge connecting bolts 82 for bolting assembly to a pair of upper vertical axis mounting portions 81A are inserted and fastened.

[0144] In addition, the lower and upper surfaces of the pair of upper vertical axis mounting parts 81A, corresponding to the S1 and S2 rotation points, may each have a mating part 83 on the other side, where tooth surfaces and tooth valleys that lock in the circumferential direction are repeated, except for the central portion. A bolt through-hole (not indicated in the drawing reference numerals) through which the hinge connecting bolt 82 described above passes may be formed in the central portion of the mating part 83.

[0145] Here, the tooth surfaces and tooth valleys formed on one side of the mating parts 143, 243 and the other side mating parts 303, 83 are firmly mated (mechanized) by the link assembly bolt 305 and the hinge connecting bolt 82, enabling the transmission of driving forces in the tilting rotation direction and the steering rotation direction. At the same time, the tooth surfaces of the mating parts have a trapezoidal cross-section, which is the surface of the tooth surface that is inclined, thereby preventing the generation of mechanical backlash noise in advance.

[0146] The mechanical backlash noise suppression feature provided by the shape structure of the one-sided mating portions 143, 243 and the other-sided mating portions 303, 83 described above is not limited to the coupling structure between the tilting link members 300A, 300B and the tilting shaft 140, nor to the coupling structure between the upper vertical axis mounting portion 81A and the steering shaft 240. In other words, as will be explained in more detail later, due to the mechanical backlash noise suppression feature described above, it can also be directly applied to the installation structure of the tilting drive motor 150 of the tilting drive unit 100 and the steering drive motor 250 of the steering drive unit 200.

[0147] Figures 13A and 13B are exploded perspective views showing one and the other side of the tilting drive unit, which is part of the configuration of an antenna clamping device according to one embodiment of the present invention.

[0148] The tilting drive unit 100 may further include an electrically driven tilting drive motor 150 and a transmission gear assembly 160 that receives driving force from the tilting drive motor 150 and transmits it to the tilting shaft 140, as shown in Figures 13A and 13B.

[0149] The tilting drive motor 150 and the transmission gear assembly 160 can be stably installed in the internal space 110S of the tilting drive housing 110 via the unit installation frame 180.

[0150] In particular, the transmission gear assembly 160 can be physically separated from other components provided in the internal space 110S by a gearbox housing 192, which is connected to the upper part of the gearbox base 191 via a plurality of box fixing bolts 195, after the gears have been stably mounted on the upper surface provided by the gearbox base 191.

[0151] Here, the transmission gear assembly 160 may include a first transmission gear 161 as an input gear that meshes with a motor worm gear 151 connected to the rotating shaft of the tilting drive motor 150, a second transmission gear 162 that meshes with the first transmission gear 161, a third transmission gear 163 that meshes with the second transmission gear 162, a fourth transmission gear 164 that meshes with the third transmission gear 163, and a fifth transmission gear 170 as an output gear that meshes with the fourth transmission gear 164.

[0152] The first to fifth transmission gears 161 to 164 and 170 are formed as two-stage gears with different diameters so that the meshing portions of the input and output sections are different in terms of the power transmission sequence. By providing all five transmission gears 161 to 164 and 170 with different gear meshing ratios, the power can be converted into an appropriate reduction force and reduction ratio relative to the operating capacity of the tilting drive motor 150 and transmitted to the tilting shaft 140.

[0153] In particular, the first transmission gear 161 functions as an input gear, and since the gear configuration connected to the rotating shaft of the tilting drive motor 150 is a motor worm gear 151 of the worm gear type, it is preferable that at least one of the two gears of the first transmission gear 161 is a worm wheel gear type gear that can easily mesh with a worm gear. The fifth transmission gear 170 functions as an output gear, and as described later, since the gear configuration connected to the outer circumference of the tilting shaft 140 is a tilting shaft worm wheel gear 141 of the worm wheel gear type, it is preferable that at least one of the two gears of the fifth transmission gear 170 is a worm gear type gear that can easily mesh with a worm wheel gear.

[0154] The tilting shaft worm wheel gear 141 can receive power by meshing with the rack gear teeth 171 formed on the outer circumference of the fifth transmission gear 170, one of the five transmission gears.

[0155] Here, the tilting shaft 140 is positioned horizontally from left to right in the internal space 110S within the tilting drive housing 110 for smooth transmission of driving force through mutual fitting of one-side fitting portion 143 and the other-side fitting portion 303 with respect to a pair of tilting link members 300A and 300B, the transmission gear assembly 160 is positioned to have a rotation axis in the generally vertical direction, and the tilting drive motor 150 may be positioned horizontally from left to right to have a rotation axis parallel to the tilting shaft 140.

[0156] In addition, a motor control board 185 may be provided in the rear part of the internal space 110S of the tilting drive unit housing 110, via a circuit board fixing bracket 186.

[0157] On the other hand, a tilting damper (not shown) may be further provided between the tilting drive motor 150 and the inner surface of the tilting drive housing 110. The tilting damper plays a role in preventing mechanical backlash noise from occurring by attenuating the operating reaction force transmitted in reverse from the heavy antenna equipment A by the tilting drive of the tilting drive motor 150. Hereinafter, the tilting damper's configuration and effect are the same as those of the steering damper 500 which will be described later, so it will be explained in more detail in the section describing the steering damper 500.

[0158] Figure 14 is an exploded perspective view of the steering drive unit in the configuration of an antenna clamping device according to one embodiment of the present invention; Figure 15 is a perspective view of the transmission gear assembly with the gear housing removed from the configuration of Figure 14; and Figure 16 is a plan view of the configuration of Figure 14 with the upper housing of the steering unit removed.

[0159] The steering drive unit 200 may further include an electrically driven steering drive motor 250 and a transmission gear assembly 260 that receives driving force from the steering drive motor 250 and transmits it to the steering shaft 240, as shown in Figures 14 to 16.

[0160] The steering drive motor 250 and the transmission gear assembly 260 can be stably installed in the internal space between the lower steering housing 210 and the upper steering housing 220 via a unit mounting frame (not shown).

[0161] In particular, the transmission gear assembly 260 can be physically partitioned from other components located in the internal space by a gearbox housing 292, which is connected to the side of the gearbox base 291 via multiple box fixing bolts 295, after the gears have been stably mounted on the side provided by the vertically oriented gearbox base 291.

[0162] Here, the components of the transmission gear assembly 260 (i.e., the first to fifth transmission gears 261 to 264, 270 and the motor worm gear 251) and the drive force transmission mechanism to the steering shaft 240 are largely the same as the drive force transmission mechanism to the transmission gear assembly 160 and tilting shaft 140 described in the tilting drive unit 100, differing only in direction, so a detailed explanation is omitted.

[0163] On the other hand, a steering damper 500 may be further provided between the steering drive motor 250 and the inner surface of the steering upper housing 220 in a shape designed to reduce backlash. The steering damper 500 plays a role in preventing mechanical backlash noise from occurring by attenuating the operating reaction force transmitted in reverse from the heavy antenna equipment A by the steering drive of the steering drive motor 250.

[0164] More specifically, the steering damper 500 may be positioned between the upper end of the steering drive motor 250, which is opposite to the lower end to which the rotation shaft is connected, and the inner surface of the steering upper housing 220, as shown in Figures 14 and 15.

[0165] The steering damper 500 may include an installation gasket 510 interposed at the lower end of the steering drive motor 250, a lower damper 520 fixed to an installation projection 252 of the steering drive motor 250 that passes through a through hole 510h of the installation gasket 510, and an upper damper 530 having a lower end that is molded to overlap a portion of the upper end of the lower damper 520.

[0166] The lower damper 520 may be formed such that the tooth surface (see reference numeral "521" in the drawing) and tooth valley (see reference numeral "522" in the drawing) are repeated in the circumferential direction, and the portion forming the tooth surface 521 may be molded to overlap with a portion of the upper damper 530.

[0167] The upper damper 530 has a through hole 530h formed on its upper surface through which a fixing projection (not shown) formed on the inner surface of the upper steering housing 220 is fastened, and the lower surface has tooth surfaces (see reference numeral "531" in the drawing) and tooth valleys (see reference numeral "532" in the drawing) formed so as to be repeated in the circumferential direction, and the portion forming the tooth surface 531 may be inserted into the tooth valley 522 portion of the lower damper 520 for mold fitting.

[0168] The steering damper 500, configured in this way, plays a role in preventing the generation of mechanical backlash noise in the steering drive motor 250 by damping the eccentric load of the heavy antenna equipment A when adjusting the tilt rotation in the front-rear direction by tilting rotation of the antenna equipment A, and when adjusting the direction in the left-right direction by steering rotation. It is preferable to understand this as an effect that also applies to the tilt damper (not shown), for which a detailed explanation is omitted.

[0169] As previously described, the antenna clamping device 1 according to one embodiment of the present invention has the following technical features to minimize or prevent the generation of mechanical backlash noise that may occur when adjusting the direction of the heavy antenna equipment A: 1) effectively designing and applying the position of the T3 tilting rotation point which is directly related to the tilting rotation operation; 2) modifying and applying the shape design of the configuration related to each hinge of the mounting rotation block 400 which mediates the installation of the antenna mounting bracket 90 on the lower vertical axis mounting part 81B; 3) modifying and applying the design of the peripheral configuration connected to the tilting shaft 140 and the steering shaft 240; and 4) modifying and applying the design of the connection part of the tilting drive motor 150 and the steering drive motor 250.

[0170] In addition, as shown in Figure 16, in the antenna clamping device 1 according to one embodiment of the present invention, assuming that a tilting force acts in the front-rear direction (FR) when the antenna equipment A performs a tilting rotation operation, it is preferable that the axial direction E of the worm gear 271 of the fifth transmission gear 270, which is provided to mesh with the worm wheel gear 241 of the steering shaft 240, is inclined slightly to one side rearward or to the other side rearward from the left-right horizontal direction.

[0171] When the worm wheel gear 241 of the steering shaft 240 and the worm gear 271 of the fifth transmission gear 270 mesh perpendicularly to the tilting direction in the front-rear direction (FR), there is an advantage in reducing mechanical backlash noise during the steering rotation operation of antenna equipment A, but the effect of reducing mechanical backlash noise during the tilting rotation operation of antenna equipment A may decrease.

[0172] Figure 17 is a perspective view showing the direction setting of an antenna device by tilting rotation and / or steering rotation using an antenna clamping device according to one embodiment of the present invention.

[0173] Figure 17(a) shows the state in which antenna equipment A, which is mounted on a support pole P via an antenna clamping device 1 according to one embodiment of the present invention, is attached to the support pole P before directional adjustment is performed by tilting rotation and steering rotation.

[0174] Here, as shown in Figure 17(b), if the direction adjustment can be completed by the tilting rotation of antenna device A alone, the user can operate the tilting drive motor 150 of the tilting drive unit 100 to perform the tilting rotation.

[0175] Furthermore, as shown in Figure 17(c), if the direction adjustment can be completed by the steering rotation operation of antenna device A alone, the user can operate the steering drive motor 250 of the steering drive unit 200 to rotate the steering.

[0176] Furthermore, as shown in Figure 17(d), if tilting and steering rotation of antenna device A are required simultaneously for directional adjustment, the user can operate the tilting drive motor 150 of the tilting drive unit 100 and the steering drive motor 250 of the steering drive unit 200 for a predetermined time to adjust the direction of antenna device A to the desired direction.

[0177] An antenna clamping device 1 according to one embodiment of the present invention has been described in detail above with reference to the attached drawings. However, the embodiments of the present invention are not necessarily limited to the embodiment described above, and it goes without saying that various modifications and equivalent implementations are possible by persons with ordinary skill in the art to which the present invention pertains. Therefore, the true scope of the rights of the present invention is determined by the claims described later. [Industrial applicability]

[0178] The present invention provides an antenna clamping device that allows the antenna equipment to tilt and rotate vertically while simultaneously steering and rotating horizontally, maximizing the range of rotation in each direction. It also provides an extension bar that can be selectively provided to suit the number of antenna equipment units installed on the support pole and the available installation space. When adjusting the antenna direction, including tilting and steering rotation of relatively heavy antenna equipment, it can prevent the generation of mechanical backlash noise from the connecting parts that enable tilting and steering rotation. Furthermore, it allows the antenna equipment to be installed in a compact manner, forming two steering rotation points relative to the antenna mounting bracket, and enables a miniaturized product design. [Explanation of Symbols]

[0179] P: Support pole, A: Antenna equipment 1: Antenna clamping device, 50A: Upper fixing bracket section 50B: Lower fixing bracket section, 60: Extension bar assembly 61A, 61B: Front and rear horizontal bars, 63: Left and right horizontal bars 65: Bolt fastening hole, 67: Clamping gear panel 69: Gear panel fixing screws, 70: Vertical support frame 80A: Upper support bracket section, 80B: Lower support bracket section 81A: Upper vertical axis mounting section, 81B: Lower vertical axis mounting section 82: Steering hinge connecting bolt, 83: Other side molded joint 90: Antenna mounting bracket, 91: Base bracket panel 92: Diagonal mounting section, 93: Additional bolt fastening hole 94: Mounting extension, 95: Multiple bolt through holes 96: Antenna mounting fastening hole, 97: Antenna fixing screw 98U: Upper horizontal bracket, 98D: Lower horizontal bracket 99U: Upper hinge connection end, 99D: Lower hinge connection end 100: Tilt drive unit, 110: Tilt drive unit housing 120: Tilting drive unit housing cover, 130: Tilting drive unit 140: Tilt shaft, 143: One-sided molded joint 145: Bolt fastening hole, 150: Tilt drive motor 160: Transmission gear assembly, 180: Unit mounting frame 200: Steering drive unit, 210: Steering lower housing 220: Upper steering housing, 230: Steering drive unit 240: Steering shaft, 243: One-sided molded mating section 245: Bolt fastening hole, 250: Steering drive motor 260: Transmission gear assembly, 300A, 300B: Tilting link members 303: Other side type mating part, 305: Link assembly bolt 400: Mounting rotating block, 410: Rotating block body 420: Steering hinge cover, 425A, 425B: Steering hinge mounting groove 435A, 435B: Tilting hinge mounting groove, 440L-1: Single-sided tilting hinge 440R-1: Other-side tilting hinge, 440L-2: One-side tilting hinge bushing 440R-2: Other side tilting hinge bushing, 450U-1: Upper steering hinge 450D-1: Lower steering hinge, 450U-2: Upper steering hinge bushing 450D-2: Lower steering hinge bushing, 500: Steering damper 510: Installation gasket, 520: Lower damper 530: Upper damper

Claims

1. Fixed brackets are provided on the top and bottom of the support pole to mediate the installation of antenna equipment on the support pole, An antenna mounting bracket that facilitates the forward installation of the aforementioned antenna equipment, A steering drive unit connected to the aforementioned fixed bracket portion and driven to rotate the antenna equipment in a steering manner, The upper end is hinged to the steering drive unit, and the lower end is hinged to the upper rear end of the antenna mounting bracket via a pair of tilting link members, and the tilt drive unit is driven to tilt and rotate the antenna equipment. The antenna equipment includes a backlash reduction design shape for reducing the generation of mechanical backlash noise due to eccentric load, The aforementioned fixing bracket portion includes an upper fixing bracket portion provided on the support pole and a lower fixing bracket portion provided on the support pole and located below the upper fixing bracket portion. The aforementioned backlash reduction design shape is A mounting rotation block is provided on the support pole, corresponding to the lower fixed bracket portion, and mediates a hinge connection that allows for tilting rotation and steering rotation with respect to the lower support bracket portion, with an inclined surface on the mounting rotation block. An antenna clamping device having a trapezoidal cross-section that includes at least the inclined surface to which a steering hinge bush interposed between the mounting rotating block and a steering hinge inserted into a steering hinge mounting groove provided at the hinge connection point of the mounting rotating block is made contact.

2. The antenna clamping device according to claim 1, wherein the steering hinge mounting groove is machined and formed into a groove shape with openings on the upper and lower sides, respectively, so that the upper steering hinge and the lower steering hinge are interposed via the upper vertical axis mounting portion and the lower vertical axis mounting portion formed on the lower support bracket portion.

3. The mounting rotation block includes a rotation block body whose rear end is hinged to the lower support bracket and whose front end is hinged to the lower rear end of the antenna mounting bracket, and a steering hinge cover which is coupled to the side of the rear end of the rotation block body. The antenna clamping device according to claim 1, wherein the steering hinge mounting groove is formed such that its inner surface has a circular cross-section when the steering hinge cover is coupled to the rotating block body.

4. Fixing brackets provided on the top and bottom of the support pole to mediate the installation of antenna equipment on the support pole, An antenna mounting bracket that facilitates the forward installation of the aforementioned antenna equipment, A steering drive unit connected to the aforementioned fixed bracket portion and driven to rotate the antenna equipment in a steering manner, The upper end is hinged to the steering drive unit, and the lower end is hinged to the upper rear end of the antenna mounting bracket via a pair of tilting link members, and the tilt drive unit is driven to tilt and rotate the antenna equipment. The antenna equipment includes a backlash reduction design shape for reducing the generation of mechanical backlash noise due to eccentric load, The aforementioned fixing bracket portion includes an upper fixing bracket portion provided on the support pole and a lower fixing bracket portion provided on the support pole and located below the upper fixing bracket portion. The aforementioned backlash reduction design shape is A mounting rotation block is provided on the support pole, corresponding to the lower fixed bracket portion, and mediates a hinge connection that allows for tilting rotation and steering rotation with respect to the lower support bracket portion, with an inclined surface on the mounting rotation block. An antenna clamping device having a trapezoidal cross-section that includes at least the inclined surface to which a tilting hinge bush interposed between the tilting hinge bush, which is inserted into a tilting hinge mounting groove provided at the hinge connection point of the mounting rotation block, and the tilting hinge bush, which is interposed between the mounting rotation block and the tilting hinge bush.

5. The antenna clamping device according to claim 4, wherein the tilting hinge mounting groove is machined and formed into a groove shape that opens toward one side and toward the other side, respectively, so that a one-sided tilting hinge and a other-sided tilting hinge are interposed via a lower horizontal bracket provided at the lower end of the antenna mounting bracket.

6. The mounting rotation block includes a rotation block body whose rear end is hinged to the lower support bracket and whose front end is hinged to the lower rear end of the antenna mounting bracket, and a tilting hinge cover which is coupled to the lower front end of the rotation block body. The antenna clamping device according to claim 4, wherein the tilting hinge mounting groove is formed such that its inner surface has a circular cross-section when the tilting hinge cover is coupled to the rotating block body.

7. Fixing brackets provided on the top and bottom of the support pole to mediate the installation of antenna equipment on the support pole, An antenna mounting bracket that facilitates the forward installation of the aforementioned antenna equipment, A steering drive unit connected to the aforementioned fixed bracket portion and driven to rotate the antenna equipment in a steering manner, The upper end is hinged to the steering drive unit, and the lower end is hinged to the upper rear end of the antenna mounting bracket via a pair of tilting link members, and the tilt drive unit is driven to tilt and rotate the antenna equipment. The antenna equipment includes a backlash reduction design shape for reducing the generation of mechanical backlash noise due to eccentric load, The aforementioned backlash reduction design shape is An antenna clamping device comprising one-sided mating portions formed at both ends of the tilting shaft of the tilting drive unit, and the other-sided mating portion formed at the end of the tilting link member coupled to the tilting shaft, having a trapezoidal cross-section including a surface with inclined tooth surfaces that lock in the rotational direction.

8. Fixing brackets provided on the top and bottom of the support pole to mediate the installation of antenna equipment on the support pole, An antenna mounting bracket that facilitates the forward installation of the aforementioned antenna equipment, A steering drive unit connected to the aforementioned fixed bracket portion and driven to rotate the antenna equipment in a steering manner, The upper end is hinged to the steering drive unit, and the lower end is hinged to the upper rear end of the antenna mounting bracket via a pair of tilting link members, and the tilt drive unit is driven to tilt and rotate the antenna equipment. The antenna equipment includes a backlash reduction design shape for reducing the generation of mechanical backlash noise due to eccentric load, The aforementioned fixing bracket portion includes an upper fixing bracket portion provided on the support pole and a lower fixing bracket portion provided on the support pole and located below the upper fixing bracket portion. The aforementioned backlash reduction design shape is An antenna clamping device comprising one side mating portion formed at both ends of the steering shaft of the steering drive unit, and the other side mating portion formed on an upper support bracket portion provided on the support pole corresponding to the upper fixing bracket portion so as to connect the steering shaft, the mating portion having a trapezoidal cross-section including an inclined surface on which the tooth surface that locks in the rotational direction is located.

9. Fixing brackets provided on the top and bottom of the support pole to mediate the installation of antenna equipment on the support pole, An antenna mounting bracket that facilitates the forward installation of the aforementioned antenna equipment, A steering drive unit connected to the aforementioned fixed bracket portion and driven to rotate the antenna equipment in a steering manner, The upper end is hinged to the steering drive unit, and the lower end is hinged to the upper rear end of the antenna mounting bracket via a pair of tilting link members, and the tilt drive unit is driven to tilt and rotate the antenna equipment. The antenna equipment includes a backlash reduction design shape for reducing the generation of mechanical backlash noise due to eccentric load, The aforementioned backlash reduction design shape is An antenna clamping device is provided, wherein the tilting damper interposed between the inner surface of the tilting drive housing of the tilting drive unit and the tilting drive motor, and the steering damper interposed between the inner surface of the steering upper housing of the steering drive unit and the steering drive motor, each include an inclined surface that interferes in the tilting rotation direction or the steering rotation direction.

10. Fixing brackets provided on the top and bottom of the support pole to mediate the installation of antenna equipment on the support pole, An antenna mounting bracket that facilitates the forward installation of the aforementioned antenna equipment, A steering drive unit connected to the aforementioned fixed bracket portion and driven to rotate the antenna equipment in a steering manner, The system includes a tilting drive unit, the upper end of which is hinged to the steering drive unit, and the lower end of which is hinged to the upper rear end of the antenna mounting bracket via a pair of tilting link members, which drives the antenna equipment to tilt and rotate. The steering drive unit is An electrically driven steering drive motor, Steering shafts arranged vertically, Includes a transmission gear assembly that receives driving force from the steering drive motor and transmits it to the steering shaft, An antenna clamping device in which the transmission gear assembly that meshes with the steering shaft is arranged at a predetermined angle inclined forward or backward so as not to be perpendicular to the tilting rotation direction in the front-rear direction of the antenna equipment.

Images