JPH0582116U - parabolic antenna - Google Patents

Abstract

(57) [Abstract] [Purpose] A parabolic antenna that enables reception of multiple satellites with a single primary radiator and LNB. [Structure] 1 is a primary radiator and an LNB, which are mounted on a mount A2, which is screwed onto a shaft-shaped ball screw 3, and both ends of the ball screw 3 are mounted. Are held by bearings 6 provided on both sides of the mount B5, and one end of the ball screw 3 is connected to the drive shaft of the motor 4 via a joint. The mount B5 is mounted on a support arm 7 fixed to the reflecting mirror. In order to adjust the positions of the primary radiator and the LNB 1, first, the elevation angle direction is adjusted to a predetermined angle by the adjustment hole 8 provided in the support arm 7 and fixed, and then the azimuth angle direction control unit of the receiving device body. The motor 4 is driven in response to a control signal from the device, and the ball screw is rotated through the joint to move the mount A2 to a desired satellite receivable position for adjustment.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a satellite dish parabolic antenna, and relates to reception adjustment of a plurality of satellites.

[0002]

[Prior Art]

 FIG. 3 is a conceptual diagram of an example of a conventional parabolic antenna for satellite communication. As shown in the figure, in order to receive multiple satellites, multiple primary radiators and LNBs can be arranged in a line to receive. However, it is difficult to adjust the position of the primary radiator according to the latitude and longitude of the receiving place, and in the case of individual reception, a selector for selecting a satellite is necessary because the input system of the receiver is limited. However, there is a problem that the cost is very high in the case of the primary radiator for 6 polarizations of 3 satellites and LNB.

[0003]

[Problems to be solved by the device]

 The present invention has been made in view of such a point.It is easy to adjust the primary radiator corresponding to the latitude and longitude of the receiving place, and the signal line is simple, so it is not necessary to use a selector. It provides a parabolic antenna that is cost effective.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides a parabolic antenna for receiving a plurality of satellite communications, including a primary radiator and an LNB, a mounting base A on which the primary radiator and the LNB are mounted, and A shaft-shaped ball screw with the mounting base A mounted in a screwed state, a mounting base B having bearings on both sides of the ball screw, a motor connected to the ball screw via a joint, and one end fixed to a reflecting mirror. However, the present invention provides a parabolic antenna characterized in that an elevation angle adjusting hole is provided at the other end, and the supporting arm is provided with the mount.

[0005]

With the above-described structure, in the parabot antenna according to the present invention, the elevation angle is adjusted by the adjustment hole provided in the support arm, and the mounting base A is screwed onto the axial ball screw. Since the azimuth angle is adjusted by moving the control signal from the control unit of the receiver body, the adjustment is easy, and the reception of multiple satellites can be performed by one primary radiator and LNB. Can be receivable.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is an enlarged side view of an essential part of an embodiment of a parabolic antenna according to the present invention, and FIG. 2 is an enlarged side view of an essential part of another embodiment of a parabolic antenna according to the present invention. In the figure, reference numeral 1 denotes a primary radiator and an LNB, which are mounted on a mounting base A2, and the mounting base A2 is mounted in a threaded state on a shaft-shaped ball screw 3, and the ball screw 3 Both ends are held by bearings 6 provided on both sides of the mount B5, and one end of the ball screw 3 is connected to the drive shaft of the motor 4 via a joint. The mount B5 is mounted on a support arm 7 fixed to the reflecting mirror. To adjust the positions of the primary radiator and LNB1, first adjust the elevation angle to the specified angle with the adjustment hole 8 provided in the support arm 7 and then fix the position. Then, in the azimuth direction, the receiving device main body. The motor 4 is driven by a control signal from the control unit of (1), and the ball screw is rotated through the joint to move the mount A2 to the required satellite receivable position for adjustment. In the above description, the motor 4 is driven and the ball screw 3 is rotated through the joint to move the mounting base A2 and adjust the positions of the primary radiator and the LNB1. Even if the mount 10 provided with a rack gear is moved via the gear 9 to adjust the positions of the primary radiator and the LNB 1, the same effect can be expected.

[0007]

[Effect of the device]

 As explained above, in the parabot antenna according to the present invention, the angle of elevation is adjusted by the adjustment hole provided in the support arm, and the mounting base A screwed to the shaft-shaped ball screw is received. The angle in the azimuth direction is adjusted by moving the control signal from the control unit of the main unit, so the adjustment is easy and the reception of multiple satellites can be received by one primary radiator and LNB. Therefore, the number of signal lines is only one, which is very advantageous in terms of cost.

[Brief description of drawings]

FIG. 1 is an enlarged side view of an essential part of an embodiment of a parabolic antenna according to the present invention.

FIG. 2 is an enlarged side view of a main part of another embodiment of the parabolic antenna according to the present invention.

FIG. 3 is a conceptual diagram of an example of a conventional satellite dish for satellite communication.

[Explanation of symbols]

 1 Primary radiator and LNB 2 Mounting base A 3 Ball screw 4 Motor 5 Mounting base B 6 Bearing 7 Support arm 8 Adjustment hole 9 Pinion gear 10 Mounting base with rack gear

Claims (1)

[Scope of utility model registration request] 1. A parabolic antenna for receiving a plurality of satellite communications, wherein a primary radiator and an LNB, a mount A on which the primary radiator and the LNB are mounted, and the mount A are screwed together. A shaft-shaped ball screw attached to the ball screw, a mounting base B provided with bearings on both sides of the ball screw, a motor connected to the ball screw through a joint, one end fixed to a reflecting mirror, and the other end in the elevation direction. The parabolic antenna is characterized in that the parabolic antenna is provided with the adjusting hole and the supporting arm to which the mounting base B is mounted.