JPS649765B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an antenna mount for installing an antenna of an antenna device for receiving SHF satellite broadcasting.

A parabolic reflector antenna is used to receive SHF band broadcast radio waves from satellite broadcasts, but because the directivity of the parabolic reflector antenna for receiving SHF band broadcast radio waves is extremely sharp, the angle of elevation and azimuth of the parabolic reflector relative to the broadcasting satellite cannot be adjusted. The installation angle must be accurate. Furthermore, it is desired that several types of parabolic reflectors of different sizes can be attached to one antenna mount. The antenna mount must have sufficient strength because it will be exposed to the wind and rain outdoors. Furthermore, the antenna mount is required to be compact and not bulky in order to facilitate transportation. Adjustment operations are easy when setting elevation and azimuth angles,
It is also desirable that the exterior look good. By the way, many conventional products of this kind have a combination structure of sheet metal members, have a large number of parts, require many molds during processing, take a long time to manufacture, and require welding or screws to join the sheet metal members. It was used frequently and the cost was high.
In addition, the installation angle of conventional antenna frames is not always set sufficiently, which reduces the reception performance of SHF radio waves, and furthermore, the above-mentioned requirements are not satisfied. Therefore, in view of the above circumstances, the present invention provides a support arm and a support member for the adjustment body in order to be able to accurately and easily determine the elevation angle and azimuth angle of parabolic reflector installation at low cost, and to satisfy the above matters. A parabolic reflecting mirror is pivotally attached through the adjusting body, the supporting member is made telescopic, and a rotatably housed substrate is fixed to the lower surface of the adjusting body, so that the adjusting body is rotatable.

Hereinafter, the present invention will be described in detail based on specific embodiments shown in the accompanying drawings.

As shown in FIGS. 1 to 3, an outward flange 3 is protruded from the lower end of a cylindrical adjustment body 2 having an upper wall 1, and a downward locking wall 4 is formed on the outer periphery of the outward flange 3. . The flange 3 is provided with arcuate long holes 5 at four locations on the same circumference. Upper wall 1 of adjustment body 2
A support arm 6 made of pipe material bent into a U-shape is horizontally projected diagonally forward, and its front end is bent and flattened to be on the same plane to form a mounting piece 7. A bolt 9 is inserted into the connecting plate 8 through the mounting piece 7, and the bolt 9 is screwed with a nut 10. Bracket pieces 13 are bent at both ends of the connecting plate 8 so as to match the spacing between the vertical ribs 12 on the back surface of the parabolic reflector 11 to be attached. By providing various connecting plates 8 in which the distance between the bolts 9 is constant and the bracket pieces 13 match the spacing between the vertical ribs 12 of parabolic reflectors 11 of different sizes, several types of parabolic reflectors of different sizes can be used. 11 can be installed.
The upper wall 1 of the adjustment body 2 has a vertical piece 1 bent in a U-shape.
4 are opposed to each other, and a rotating cylinder 17 is fixed perpendicularly to the outer circumferential surface of the support member 16 made of pipe material.
is positioned, the support shaft 18 is inserted through the vertical piece 14, and the vertical piece 14 is horizontally suspended. A nut 19 is screwed onto the tip of the support shaft 18 so that the support member 16 can rotate around the horizontal support shaft 18. The support member 20 is the support member 16 described above.
and a movable member 21 made of pipe material, and the lower end of the movable member 21 is slidably fitted into the upper end of the support member 16. The threaded rod 22 is located within the support member 16, the tip of the threaded rod 22 is screwed into the screw plate 23 fixed to the lower end of the movable member 21 so as to project slightly upward, and the set screw 24 is attached to the projection. A cover plate 25 fixed to the lower end of the column member 16 is inserted through the small diameter base end, and a snap spring 46 is externally fitted to the protruding portion near the cover plate 25. In order to improve the rotation of the rod 22, a washer 27 is interposed, and a bolt 2 is provided on the base end surface for rotation.
8 will be provided. In this state, when the bolt 28 provided on the base end surface of the threaded rod 22 is turned, the threaded rod 22 rotates without moving forward or backward, and the tip is attached to the threaded plate 28 of the support member 20.
Since the movable member 21 is screwed into the housing, the movable member 21 moves downward or upward. In this part, a cover collar 47 is provided at the base end of the support member 16 of the threaded rod 22 and the fitting part, and a nut 2 that can press this is provided.
6 is screwed on, and when turning the threaded rod 22,
If the nut 26 is loosened and the threaded rod 22 is to be fixed at a predetermined position, the nut 26 is tightened and fixed via the collar 47. The upper part of the movable member 21 is connected to the center part of an arm 29 formed by bending a pipe material into a U-shape, and the front end of the arm 29 is bent and flattened so as to be on the same plane to form a mounting piece 30. In this mounting piece 30, similarly to the support arm 6, a bolt 9 is inserted through the connecting plate 8 and a nut 10 is inserted.
Tighten by screwing. This upper and lower connecting plate 8 connects the parabolic reflector 11 to its vertical rib 12 with bolts 31.
Install by screwing on nut 32. Alternatively, the parabolic reflector 1 can be directly connected without using the connecting plate 8 for connecting the upper and lower parts.
1 may be attached to the support arm 6/arm 29. When the nut 26 of the threaded rod 22 is loosened and the bolt 28 at the base end is rotated, the movable member 21 enters and retreats into the support member 16, the support member 20 expands and contracts, and the parabolic reflector 11 is supported. Since it is pivotally connected to the upper end of the member 20 and the front end of the support arm 6, the support member 20 tilts about the support shaft 18, and the parabolic reflector 11 rises and falls, making it possible to adjust the elevation angle of the parabolic reflector 11.

In this way, the adjustment body 2 equipped with the parabolic reflector 11 is placed on the flange plate 34 on the upper end surface of the cylindrical antenna mast 33. A disk-shaped base plate 35 for guiding the inner wall of the adjuster body 2 is housed on the lower surface of the adjuster body 2, and the base plate 35 is screwed onto the flange plate 34 from below with bolts 36. Therefore, the adjustment plate 2 is provided on the upper end surface of the mast 33 so as to be rotatable about the guide tube 37 of the base plate 35. An arc-shaped elongated hole 38 is cut in the outward flange 3 of the adjustment body 2 at a position below the support bracket 15. A fork-shaped clamping piece 39 is made to stand up from the substrate 35 at a position facing the elongated hole 38, and is inserted through the elongated hole 38 and protrudes upward. A nut 40 is screwed onto the lower end of the clamping piece 39, and after assembly, the nut 40 is caulked to prevent it from coming off in a rotatable state. A transmission piece 41 is set to a size that collides with the clamping piece 39 when rotated and cannot be rotated between the clamping pieces 39 , and is positioned between the clamping pieces 39 .
The transmission piece 41 is inserted into and engaged with the clamping piece 39 .
The vertical piece 14 is inserted into the other vertical piece 14, and a nut 43 is screwed onto the tip thereof. When the adjustment rod 42 is turned, the transmission piece 41 is threaded inside the clamping piece 39, so the rotational force is transmitted without rotating together with the adjustment rod 42, and the transmission piece 41 comes into contact with either one of the clamping pieces 39. Since the clamping piece 39 is raised from the base plate 35 and is stationary, the clamping piece 39 is moved by the transmission piece 41.
Rotate the adjustment body 2 in the opposite direction to the direction in which it abutted. Note that since the holding piece 39 is located within the elongated hole 38, it will not interfere with the rotation of the adjustment body 2. Thereby, the azimuth angle of the parabolic reflector 11 can be adjusted. After setting the azimuth, the bolt 44 is inserted into the arcuate long hole 5 formed in the outward flange 3 and screwed. The mounting bolt 9, nut 10, bolt 28, adjustment rod 42, nut 43, bolt 36, and bolt 44 are set so that they can be rotated by the same handle 45 shown in FIG.

The present invention, as described above, pivots the lower back surface of the parabolic reflector to the front end of a support arm that projects horizontally and forward from the adjustment body, and connects the upper and lower ends of the support member to the upper back surface of the parabolic reflector and the adjustment body. The support member is extendable and retractable, the adjustment body is placed on the upper end surface of the mast, and the base plate rotatably accommodated on the bottom surface of the adjustment body is fixed, and the adjustment body is rotated. Since the antenna mount is flexible, the elevation and azimuth angles of the parabolic reflector relative to the broadcasting satellite are accurate. By making various connecting plates removable on one antenna mount, several types of parabolic reflectors of different sizes can be attached. Furthermore, since this antenna mount is made of pipe material, it has sufficient strength and can withstand exposure to wind and rain. Furthermore, since this antenna mount is foldable, it is compact and easy to transport. Furthermore, we have made it possible to rotate threaded parts, bolts, and nuts using the same tool.
It is easy to adjust the elevation and azimuth angles and handle the antenna mount. In addition, since there are fewer welds mainly on the pipe members, the exterior appearance is also good.
Furthermore, since there are fewer parts and less molds are used during processing, it can be manufactured in a shorter time and costs can be reduced.

[Brief explanation of drawings]

The drawings show a specific embodiment of the present invention, in which FIG. 1 is a partially sectional side view, FIG. 2 is a rear view of FIG. 1, FIG. 3 is a plan view of FIG. 1, and FIG. The figure is a perspective view of the handle, and FIG. 5 is a perspective view of essential parts of the azimuth adjustment mechanism. DESCRIPTION OF SYMBOLS 11... Parabolic reflector, 2... Adjustment body, 6... Support arm, 20... Support member, 35... Substrate.

Claims (1)

[Claims] 1. The lower back surface of the parabolic reflector is pivoted to the front end of a support arm that is horizontal and projects forward from the adjustment body,
The upper and lower ends of the support member are pivotally connected to the upper back surface of the parabolic reflector and the rear of the adjustment body, the support member is made telescopic, and the adjustment body is placed on the upper end surface of the mast and rotated to the bottom surface of the adjustment body. The movably housed substrate is fixed, the adjustment body is rotatable, the support member is composed of a movable member and a support member, the lower end of the movable member is internally fitted into the upper end of the support member, and the lower end of the movable member is The tip of the threaded rod is screwed, the base end of the threaded rod is provided at the lower end of the support member so that it cannot move forward or backward and protrudes, the support member is made expandable and retractable, and the adjustment body is placed on the flange plate on the upper end surface of the mast. , A board rotatably housed on the underside of the adjustment body is screwed onto the flange plate, the transmission piece is positioned within the clamping piece that stands up from the board, and the adjustment rod is inserted into the support bracket protruding from the adjustment body. The transmission piece is formed in a shape that does not rotate together with the adjustment rod, the adjustment body is rotatable on the upper end surface of the mast, and the adjustment body is attached to the front end of the support arm and the upper end of the support member. An antenna mount to which a connecting plate corresponding to the size of a parabolic reflector can be detachably attached. 2. The antenna mount according to claim 1, wherein the support arm, the movable member, and the support member are made of pipe material. 3 The lower end of the movable member is housed within the support member,
The antenna mount according to claim 1, wherein the support member is configured to be rotatable until it comes into contact with the upper wall of the adjustment body.