JPH0515517U - Primary radiator mounting structure - Google Patents

Abstract

(57) [Summary] [Purpose] The structure is such that the primary radiator can be reliably and easily attached to and detached from the tip of the column. [Structure] A hook screw 12 is mounted on a side surface of a primary radiator 11 with its head protruding a predetermined length,
A tap hole 13 is provided. Further, a daruma-shaped guide hole 15 having a large hole and a small hole, and a fixing tightening screw 16 are provided at the tip of the column 14. When the primary radiator 11 is attached to the column 14, first, the column 1
The Dharma-shaped guide hole 15 of 4 is engaged with the hook screw 12 of the primary radiator 11 to hold the primary radiator 11 on the support column 14, and then fixed by the fastening tightening screw 16.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a primary radiator mounting structure for an antenna device, and more particularly to a primary radiator mounting structure for detachably mounting a primary radiator containing a transmission / reception circuit on the tip of a column.

[0002]

[Prior Art]

 FIG. 2 is a perspective view showing an example of a conventional primary radiator mounting structure, in which a primary radiator 21 having a built-in transmitter / receiver circuit is mounted on the tip of a column 24 mounted on the reflecting mirror (not shown) side. Is shown.

In this case, while supporting the primary radiator 21 with a hand, the fixing screws 25 and 26 are screwed into the tap holes 22 and 23 provided on the primary radiator 21 side to be mounted.

[0004]

[Problems to be solved by the device]

 In the above-mentioned conventional primary radiator mounting structure, since the primary radiator is supported by hand, tapping holes are sought and screwed into the fixing screws, not only the workability is poor, but also during mounting or removal. Sometimes the primary radiator can fall.

An object of the present invention is to provide a primary radiator mounting structure capable of reliably and easily attaching and detaching the primary radiator.

[0006]

[Means for Solving the Problems]

 The primary radiator mounting structure of the present invention is a primary radiator mounting structure in which a primary radiator incorporating a transmitter / receiver circuit is detachably mounted on the tip of a column. Is provided with a tap hole and a hook screw having a head portion larger than the outer diameter of the threaded portion and being attached so as to project by a predetermined length; There are provided a tightening screw, and a Daruma type guide hole having a large hole portion and a small hole portion which engage with the hook screw.

[0007]

【Example】

 Next, the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention, and shows a case where a primary radiator 11 having a built-in transceiver circuit is mounted on the tip of a column 14. A hook screw 12 and a tap hole 13 are provided on the mounting side surface of the primary radiator 11. Here, the hook screw 12 has a head portion larger than the outer diameter of the threaded portion, and is attached so as to protrude from the side surface of a predetermined length.

On the other hand, the tip of the column 14 is provided with a daruma-shaped guide hole 15 that engages with the hook screw 12, and a fixing tightening screw 16 that engages with the tap hole 13. Here, the Daruma-shaped guide hole 15 is composed of a large hole portion and a small hole portion. The large hole portion is a hole slightly larger than the outer shape of the head of the hook screw 12, and the small hole portion is The hole is slightly larger than the external shape of the hook screw 12.

When the primary radiator 11 is attached to the tip of the pillar 14, first, the hook screw of the primary radiator 11 is inserted into the large hole of the Daruma-shaped guide hole 15 provided on the pillar 14 side. Insert 12 heads and slide downwards. As a result, the small hole portion of the Daruma-shaped guide hole 15 and the thread portion of the hook screw 12 are engaged with each other, so that the primary radiator 11 can be held by the column 14. After that, the fixing tightening screw 16 is tightened in the tap hole 13 to fix the primary radiator 11 to the column 14.

[0011]

[Effect of the device]

 As described above, according to the present invention, after fixing the primary radiator to the column by engaging the daruma-shaped guide hole provided on the column side and the hook screw provided on the primary radiator side, the fastening screw for fixing is provided. Since the structure is fixed by turning, the primary radiator can be securely and easily attached and detached without dropping the primary radiator at the time of attachment or detachment as in the past.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an example of a conventional primary radiator mounting structure.

[Explanation of symbols]

 11 Primary radiator 12 Hook screw 13 Tap hole 14 Strut 15 Daruma type guide hole 16 Tightening screw for fixing

Claims (1)

[Scope of utility model registration request] 1. A primary radiator mounting structure in which a primary radiator containing a transmitter / receiver circuit is removably mounted on the tip of a column, and a tap hole is provided on a side surface of the primary radiator that is in contact with the column tip. A hook screw having a head portion larger than the outer diameter of the screw portion and being attached so as to project a predetermined length; a fixing tightening screw that is screwed into the tap hole at the tip of the column; A primary radiator mounting structure, characterized in that it is provided with a daruma-shaped guide hole consisting of a large hole portion that engages with the hook screw and a small hole portion.