JPS6342585Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stay that is used when fixing an antenna mast to a roof or the like using a branch line.

The method of fixing the antenna mast is, for example, as shown in FIG. The antenna mast 3 is fixed to the roof 1 by connecting the stay ring 4 to an appropriate location on the roof with a branch line 5 and stretching the branch line 5. However, in the conventional stay ring, as shown in Fig. 2, the antenna mast mounting hole 7 is formed in the center of the circular plate 6, and a plurality of branch wire mounting holes 8 are formed around the center of the antenna mast mounting hole 7, so that the antenna mast is inserted from the end of the antenna mast. It was all I could do. For this reason, if the antenna is attached to the antenna mast first, the stayling cannot be inserted. Also,
UHF antenna on the antenna mast of the existing antenna,
When adding a VHF antenna or the like, there is an inconvenience in that the existing antenna cannot be replaced or added to reinforce the antenna mast without first removing the existing antenna from the antenna mast. Furthermore, when temporarily attaching antenna parts such as a stay ring, auto clip, antenna arm, and mast mounting bracket to the antenna mast and storing them in a case, a large case is required because the antenna arm hits the stay and cannot be compacted. When antenna parts are stored in this case and shipped as an antenna product, the stay ring sometimes damages other parts, especially the antenna element, due to vibrations during transportation.

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned disadvantages, the present invention aims to provide a stay that can be attached and detached at an intermediate point of the antenna mast.

Embodiments of the present invention will be described below with reference to the drawings.
3 to 6, the U-shaped metal fitting 11 has a spindle mounting hole 13 at one end of the U-shaped plate 12, and a ring protrusion 15 slightly projecting around the hole 14 on one side at the other end. A branch line attachment hole 16 with a stop part is provided, and at least two holes 17 and 18 are provided in the middle of the U-shaped plate 12, and the hole 17 near the branch line attachment hole 16 with a stop part is the same as the ring protrusion 15. A large diameter hole that fits,
Hole 18 is a branch line attachment hole. However, U-shaped board 1
A part of the recess 19 of No. 2 is formed into a bent part 21 that protrudes from the surface 20 where the ring protrusion 15 is located by the thickness of the U-shaped plate 12, and is further bent at the outer peripheral part 22 of the U-shaped plate 12. A plate holding portion 23 bent in a U-shape toward a surface 20 where the ring protrusion 15 is located is provided at a location near the large diameter hole 17 between the branch line attachment hole 16 with a stop portion and the large diameter hole 17.

The groove width of the plate holding portion 23 is selected to be slightly larger than the sum of the thickness of the U-shaped plate 12 and the amount of protrusion of the ring protrusion 15 from the surface 20.

As shown in FIG. 7, the stay ring 25 according to the present invention has two U-shaped metal fittings 11 overlapped at a surface 20 where the ring protrusion 15 is located, and a rivet 26 or eyelet causes a slight wobble at the support shaft mounting hole 13. It is made by pivoting and attaching.

Since this embodiment has the above-described configuration, as shown in FIG. 10, the stay ring 25 in an open state is placed slightly above the stay band metal fitting 27 fixed at an appropriate position on the antenna mast 3, and the antenna mast is attached to the antenna mast with its recess. 3, and by rotating both U-shaped fittings in the closing direction at once, it can be attached to the antenna mast 3. To make this operation explanation easier, both U-shaped brackets are the same, but one
In order to distinguish the parts of the U-shaped fitting from the corresponding parts of the other U-shaped fitting, '' is added to the same reference numerals.

In FIG. 7, when the U-shaped fittings 11, 11' are rotated in the closing direction, first, the U-shaped fittings 11, 11'
The tips of the rings are overlapped, and then the ring protrusions 15,1
5' collide with each other and each rides on the other party's ring protrusion. That is, the U-shaped metal fittings 11 and 11' are connected to the rivet 2.
6, the ring protrusions 15, 15' are rattled to such an extent that they can ride on each other's mating ring protrusions, so that the ring protrusions 15, 15' mutually ride over the mating ring protrusions. Next, the outer peripheral parts 22, 22' of the U-shaped fittings 11, 11' are guided by the grooves of the plate holding parts 23, 23' of the U-shaped fittings on the other side, and as shown in FIG. 8, the U-shaped fittings 11
The ring protrusion 15 is the large diameter hole 1 of the U-shaped fitting 11'.
7', and the ring protrusion 15' of the U-shaped fitting 11'.
is fitted into the large diameter hole 17 of the U-shaped fitting 11 to form a mast mounting hole 28 in the center, resulting in a closed state, and the antenna mast 3 is positioned in this mast mounting hole 28. In this closed state, as shown in FIG.
The lower surface 30 of 2 is the same surface, and other than the slight gap between the U-shaped plate 12 and the bent portion 21', it comes into contact with the upper end circumference of the stay band fitting 27 shown in FIG. The stay ring 25 does not tilt on the antenna mast.

This stay ring 25 has branch wires attached to the branch line attachment holes 16, 16' with locking parts and the branch line attachment holes 18, 18', and the branch lines are stretched between the roof parts. U-shaped fitting 11,
11' mutually hold the mating metal fittings with the plate holding portions 23, so that it is possible to prevent the vertical distance from increasing due to the downward tension of the branch line.

In addition, when removing the stay ring from the antenna mast 3, use a sharp and flat tool to remove the stay from both U
After inserting the overlapping part of the U-shaped metal fittings and removing the ring protrusion 15 from the large diameter hole 17, both U-shaped metal fittings are opened and removed.

As described above, the staying according to the present invention is made by using two U-shaped metal fittings that can be mass-produced using a press machine, etc.
Since they are pivoted as a set so that they can be opened and closed, they can be attached to and removed from the middle of the antenna mast by relatively simple means. Therefore, the staying can be attached to the antenna mast at any time regardless of the antenna, and if it becomes necessary to replace or add the staying to reinforce the antenna mast due to the addition of an antenna, it can be installed without removing the existing antenna. This improves work efficiency. Further, since a predetermined bent portion is formed in the recessed portion of the U-shaped metal fitting, the stay ring will not tilt on the stay band metal fitting of the antenna mast. In addition, if the antenna parts (excluding the stay ring) are temporarily attached to the antenna mast and then stored in a case, the antenna product and the stay ring are shipped separately, and the stay ring is attached to the antenna mast on-site. The case has advantages such as being compact and preventing damage to the antenna element etc. due to staying.

[Brief explanation of the drawing]

Figure 1 is a front view showing an example of antenna arrangement;
The figure is a plan view showing an example of a conventional stayling, Fig. 3 is a front view showing an example of a U-shaped fitting of a stayling according to the present invention, Fig. 4 is a rear view of the same, and Fig. 5 is the same as Fig. 3. 6 is a sectional view taken along the line A-A in FIG. 3, FIG. 7 is a plan view of an embodiment of the present invention showing the open state, and FIG. 8 shows the same in the closed state. The plan view shown in FIG. 9 is a sectional view taken along the line B-B in FIG.
The figure is an explanatory diagram of the attachment and detachment operation of the staying according to the present invention. 11...U-shaped metal fitting, 12...U-shaped plate, 13...
Spindle mounting hole, 14... hole, 15... ring protrusion,
16... Branch line attachment hole with locking part, 17... Large diameter hole, 18... Branch line attachment hole, 19... Recess, 21...
...Bending part, 23...Plate holding part, 25...Staying, 28...Mast mounting hole.

Claims (1)

[Scope of utility model registration request] One end of the U-shaped plate is provided with a support shaft attachment hole, and the other end is provided with a branch line attachment hole with a locking part with a ring protrusion protruding around the hole on at least one side, and at least two holes are provided in the middle of the U-shaped plate. The hole near the branch line attachment hole with a locking part is made into a large-diameter hole into which the same thing as the ring protrusion fits, and a part of the recess of the U-shaped plate is located closer to the U-shaped hole than the surface with the ring protrusion. The plate is bent so as to protrude by the thickness of the plate, and a U-shape is formed on the outer periphery of the U-shaped plate toward the surface where the ring protrusion is located at a location near the large-diameter hole between the branch line attachment hole with the locking part and the large-diameter hole. A U-shaped metal fitting is constructed by providing a plate holding part bent in the shape of a shape, and these two U-shaped metal fittings are overlapped on the surface with the ring protrusion and pivoted at the support shaft mounting hole, so that both U-shaped metal fittings are formed. A stay for an antenna mast in which a mast mounting hole is formed in the center when the tips of the metal fittings are guided by the plate holding parts of the other side and the ring protrusions are fitted into the large diameter holes of the other side.