JP2536811B2 - Connector for antenna connection - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna connecting connector which is set in a state in which a connector holding portion of an antenna mounting base mounted on a vehicle, a house or the like is sandwiched, and particularly to a bolt-shaped antenna connector portion. The present invention relates to an antenna connecting connector in which a nut screw-connected to this is composed of an upper nut and a lower nut.

[0002]

2. Description of the Related Art Generally, an antenna connecting connector is set on a connector holding portion of an antenna mounting base fixed to a trunk, a roof, a balcony or an eaves of a vehicle for the purpose of connecting an antenna and a coaxial cable. Used.

This antenna connector has a locking step portion that abuts the lower surface of the connector holding portion, a bolt-shaped antenna connector portion that is connected to the coaxial cable and is provided following the locking step portion, and this antenna. It has a connector portion and a nut that is screwed together, and is fixed to the connector holding portion by sandwiching the peripheral edge portion of the connector holding portion with the locking step portion and the nut.

Therefore, in order to ensure such a fixed state, it is necessary to maintain the holding of the nut by the nut to the connector holding portion, and in particular, for example, Japanese Utility Model Application No. 58-14.
As disclosed in No. 5044 (Japanese Utility Model Publication No. 60-55106), a connector holding portion of a base for mounting an antenna can be inserted laterally,
If the nut is loosened, the antenna connecting connector will be disengaged from the connector holding portion, so it is important to hold the nut in the connector holding portion.

For this reason, as a nut,
As described in Japanese Patent No. 5123, it is possible to use an upper nut and a lower nut (so-called double nut) provided with a connecting member for integrating both, whereby the upper nut is Since the lower nuts are pushed down and integrated together in a manner shifted from the originally screwed state, the state in which the connector holding portion is held is maintained as compared with a single nut.

[0006]

However, the double nut described in Japanese Utility Model Publication No. 36-15123 is used because the connecting member is inserted from the upper surface side of the upper nut into the screw hole of the lower nut. Since it is necessary to form a screw hole for attaching the connecting member in the lower nut in advance, there is a problem that the work is troublesome and the cost is increased.

In addition, this double nut is
When applied to the type of No. 55106 that can be inserted from the lateral direction, since the attaching direction of the connecting member is the same as the longitudinal direction of the antenna connector portion or the antenna itself, the attaching work and the adjusting work are troublesome. Since the upper nut is simply overlaid on the lower nut, both the upper nut and the lower nut are visible from the outside,
It also has a problem that it does not look good.

Therefore, in the present invention, the upper nut and the lower nut can be integrated by the connecting member without forming a screw hole or the like in the lower nut, and the attaching work and the adjusting work of the connecting member can be easily performed. Further, it is an object of the present invention to provide a connector for antenna connection in which the lower nut is housed inside the upper nut and the appearance is improved.

[0009]

SUMMARY OF THE INVENTION An antenna connecting connector of the present invention includes a locking step portion that abuts a lower surface of a connector holding portion of an antenna mounting base, and a connecting step portion that is connected to a coaxial cable and that follows the locking step portion. A bolt-shaped antenna connector portion provided as an upper part, an upper nut and a lower nut that are respectively screw-coupled to the antenna connector portion, and a connecting member for integrating these nuts. , Forming a tubular portion facing the side surface portion of the lower nut to cover it, and providing a through hole portion for attaching the connecting member in the tubular portion toward the center of the nut. At least a part of the side surface portion of the nut is a facing flat portion capable of receiving the tip portion of the connecting member, and the tip portion presses the substantially central portion of the flat portion,
By attaching the connecting member to the through-hole portion, the upper nut and the lower nut have a double nut structure having a loosening prevention function.

By using the antenna connecting connector composed of such components, the upper nut and the lower nut are connected to the substantially central portion (that is, the shortest distance from the nut center) of the flat portion of the latter. The nuts can be integrated by hitting each other, whereby the relative rotational movements of both nuts are completely restricted, and the locking function of the nuts is surely ensured. The flat surface portion at this time can also be used as a tightening surface when tightening the nut with a tool.

Further, the connecting member is tightened in a direction substantially orthogonal to the antenna connector portion and the antenna itself. Further, since the tubular portion is formed so as to face and cover the side surface portion of the lower nut, the lower nut is housed in the upper nut so that only the upper nut can be seen from the outside. .

As an action of the double nut, the lower nut pushes down the upper nut so that the lower nut pulls the antenna connector portion downward and the upper nut pulls the antenna connector portion upward. It goes without saying that the state deviates from the state and the frictional force between the threads of the upper and lower nuts and the threads of the connector is increased.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS.
Will be described with reference to. In the figure, 1 is an antenna mounting base, 1a is a rotating member, 2 is a base portion, 3 is a connector holding portion, 4 is a notch portion, 5 is an antenna connecting connector, 5a is a locking step portion, and 6 is an antenna connector. Section, 6a is thread, 7
Is a coaxial cable, 8 is an upper nut, 8a is a screw thread, 9 is a lower nut, 9a is a screw thread, 10 is a cylindrical portion, 11 is a connecting member, 12 is an antenna, 13 is a pair of opposed flat portions,
14 is a through hole.

Here, the antenna mounting base 1 is provided with a base portion 2 having a mounting function for holding a part of the vehicle, and a connector holding portion 3 for mounting an antenna connecting connector 5, The connector holding portion 3 can change its direction by operating the rotating member 1a.

In addition to the mounting function as shown in the figure, the base 2 has a special mounting function for holding a part of the vehicle, and the base 2 is attracted to the surface of each part by a magnet or a suction cup. Some have a mounting function that allows it.

The connector holding portion 3 is provided with a cutout portion 4 which is cut out from the edge portion thereof, and as shown in FIG. 1, the width of the cutout portion 4 is the antenna connecting connector 5 which will be described later. The antenna connector portion 6 is formed in such a size that it can be inserted. The connector holding portion 3 is not limited to the one provided with the cutout portion 4 as shown in the drawing,
It may be provided with a hole.

Next, the antenna connecting connector 5 has an antenna connector portion 6 having an outer peripheral surface formed with a thread groove, and an antenna 12 can be attached to the antenna connector portion 6 and a coaxial cable 7 is connected. Has been done. Further, at the lower end portion of the antenna connector portion 6, a locking step portion 5a is formed outward.

The antenna connector portion 6 has a structure shown in FIG.
As shown in FIG. 2 and FIG. 2, the upper nut 8 and the lower nut 9 are screwed together. The upper nut 8 is formed with a tubular portion 10 facing downward. This tubular portion 10
Is formed in such a size that the lower nut 9 can be housed inside. Further, the tubular portion 10 is formed with a through hole portion 14 so as to face the center of the nut, and a screw-shaped connecting member 11 is movably attached to the through hole portion 14.

A flat surface portion 13 is provided on a side surface portion of the lower nut 9 so as to face each other. This plane portion 13
Although the tip end of the connecting member 11 abuts, as shown in the figure, when it is provided in a state of facing each other, it is also used for tightening with a spanner or the like when it is attached to the antenna connector portion 6. However, the number of flat portions 13 to be formed can be set arbitrarily.

In this way, the lower nut 9 can be housed in the upper nut 8 and, in this state, the connecting member 11 is screwed inward so that the tip of the connecting member 11 is lower. By bringing the lower nut 9 into rotation with the upper nut 8, the upper nut 8 also rotates with respect to the lower nut 9. As a result, the upper nut 8 and the lower nut 9 are integrated.

The tip of the connecting member 11 is fixed to the flat surface portion 13
It is preferable to make it abut on substantially the center. Therefore, when tightening the upper nut 8, the connecting member 11
And the flat portion 13 are opposed to each other.

Further, a plurality of connecting members 11 may be provided at opposite positions of the tubular portion 10, whereby the lower nut 9 is sandwiched between the tips of the connecting members 11. .

Subsequently, when the antenna connecting connector 5 is attached to the antenna mounting base 1, first, the antenna connector portion 6 of the antenna connecting connector 5 is inserted into the notch portion 4 so that the locking step portion 5a is the connector. It is set in a state of being brought into contact with the lower surface of the holding portion 3. Next, the lower nut 9 is guided to the thread groove of the antenna connector portion 6, and the connector holding portion 3 near the cutout portion 4 is sandwiched between the locking step portion 5a and the lower nut 8.

Then, the upper nut 8 is guided from above the lower nut 9 into the thread groove of the antenna connector portion 6 so that the lower nut 9 is housed in the tubular portion 13 and the lower nut 9 is And tighten it tight. At this time, the connector holding portion 3 has the lower surface portion of the upper nut 8 and the locking step portion 5a.
The antenna connection connector 5 is fixed to the connector holding portion 3 by being strongly sandwiched between the antenna connection connector 5 and the connector holding part 3.

Next, in this state, the connecting member 11 is tightened inwardly, and the tip end thereof is brought into contact with the flat surface portion 13, so that the upper nut 8 and the lower nut 9 are connected to each other. Are integrated through. At this time, it is preferable that the tip of the connecting member 11 is brought into contact with substantially the center of the flat surface portion 13 as described above.

The relationship between the upper nut 8, the lower nut 9 and the antenna connector 6 in this state will be described as shown in FIG. That is,
By pushing down the lower nut 9 by the upper nut 8,
As shown by the white arrow in FIG. 2, the antenna connector portion 6
On the other hand, the upper nut 8 is strongly urged upward and the lower nut 9 is strongly urged downward.

As a result, a large frictional force is generated between the upper portion of the screw thread 8a of the upper nut 8 and the lower portion of the screw thread 6a of the antenna connector portion 6, and the screw thread 9a of the lower nut 9 is generated. A large frictional force is generated between the lower part and the upper part of the thread 6a of the connector part.

Since both the upper nut 8 and the lower nut 9 are integrated by the connecting member 11, even when one of them is rotated, a large frictional force generated between them causes the nut to rotate. Movement is regulated. Therefore, even when the antenna connecting connector 5 is raised due to vibration or the like, it does not freely rotate.

The lower nut 9 is used mainly for increasing the frictional force in relation to the upper nut 8 and does not participate in the holding of the connector holding portion 3 so much. Is performed exclusively between the lower surface portion of the upper nut 8 and the locking step portion 5a.

[0030]

According to the antenna connector of the present invention, the tip of the connecting member, which is attached to the through hole of the tubular portion toward the center of the nut, is pressed to the substantially central portion of the flat portion of the lower nut. It is possible to completely prevent relative rotational displacement between the upper nut and the lower nut after the double nut is formed and integrate them into each other, so that the loosening preventing function as the double nut can be surely continued. In this case, the flat portion of the lower nut can be an existing flat portion that is used when tightening with a wrench or the like, which eliminates the need for processing a screw hole or the like on the lower nut, thus reducing the cost. Can be planned.

Further, since the mounting direction of the connecting member is substantially orthogonal to the longitudinal direction of the antenna connector portion or the antenna itself, the mounting work and adjustment work of the connecting member can be easily performed.

Further, since the lower nut is accommodated in the tubular portion of the upper nut, only the upper nut can be seen from the outside, which gives a simple design feeling.

[Brief description of drawings]

FIG. 1 is a perspective view showing a usage state of a connector for connecting an antenna of the present invention.

FIG. 2 is an exploded perspective view showing an antenna connection connector of the present invention.

FIG. 3 is a cross-sectional view illustrating a state in which a connector holding portion is held.

[Explanation of symbols]

 1 ... Antenna mounting base 1a ... Rotating member 2 ... Base part 3 ... Connector holding part 4 ... Notch part 5 ... Antenna connection connector 5a ... -Locking step 6 ... Antenna connector 6a ... Screw 7 ... Coaxial cable 8 ... Upper nut 8a ... Thread 9 ... Lower nut 9a ... -Screw 10 ... Cylindrical part 11 ... Connecting member 12 ... Antenna 13 ... Plane part 14 ... Through hole part

Claims (1)

(57) [Claims] 1. A locking step portion (5a) which abuts a lower surface of a connector holding portion (3) of an antenna mounting base (1) and a locking step portion (5a) which is connected to a coaxial cable (7). ) Followed by a bolt-shaped antenna connector part (6)
An antenna connection connector (1) having an upper nut (8) and a lower nut (9) which are respectively screw-connected to the antenna connector portion (6), and a connecting member (11) for integrating these nuts. 5) A tubular portion (10) is formed on the upper nut (8) so as to face and cover a side surface portion of the lower nut (9), and the tubular portion (10) is formed. ) To the connecting member (1
The through hole portion (14) for attaching 1) is provided so as to face the center of the nut, and at least a part of the side surface portion of the lower nut (9) is
The connecting member (11) is a facing flat portion (13) capable of receiving the tip portion of the connecting member (11), and the tip portion presses the substantially central portion of the flat portion (13). The through hole (14)
A connector for antenna connection, characterized in that the upper nut (8) and the lower nut (9) have a double nut structure having a loosening prevention function by being attached to the antenna.