JP3253148B2 - Vehicle roof antenna mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod antenna element having a base end portion rotatably supported on a roof of a vehicle, and further comprising a transmission set and / or a reception set in the vehicle body. The present invention relates to a device for mounting a roof antenna for a vehicle, which electrically connects the device.

[0002]

2. Description of the Related Art In general, in a vehicle roof antenna mounting apparatus of this type, a base end of a rod antenna element is pivotally supported at one end of a conductive base, and the conductive base is fixed to an insulating member. The other end of the conductive base is electrically connected to a conductive bolt embedded in the insulating member in advance, and the leading end of the conductive bolt is introduced into the vehicle body. The connection establishes an electrical connection between the rod antenna element and the transmitting set and / or the receiving set in the vehicle body. The outer periphery of the conductive base is usually covered with an insulating cover.

[0003]

In the above-mentioned conventional mounting apparatus, a so-called insert part in which a conductive member is integrally embedded and formed in an insulating member is used in addition to a pressed part and a molded part as its constituent parts. ing. For this reason, there was a problem that the production was difficult and the cost was high. Therefore, recently, an attempt has been made to simplify the mounting device by returning each component to the original simplified components without using so-called insert components and assembling them. However, when such a means is adopted, the assembling work becomes complicated and the workability deteriorates, so that there has been a problem that much work and time are required for the antenna mounting work.

[0004] An object of the present invention is to provide a simple and easy-to-manufacture product which is integrated with a press-formed product or a molded product in a simplified form by a combination of bolts and nuts for mounting. Another object of the present invention is to provide a vehicular roof antenna mounting device that can be easily assembled and can quickly and accurately perform an antenna mounting operation.

[0005]

Means for Solving the Problems In order to solve the above problems and achieve the object, the present invention has taken the following measures. That is, a vehicle roof antenna mounting for supporting a base end portion of a rod antenna element on a vehicle roof so as to be able to undulate and electrically connecting the antenna element to a transmission set and / or a reception set in a vehicle body. In the device,

A conductive support arm having a coupling portion detachably coupled to the base end portion of the rod antenna element at one end and a pivotal support portion at the other end, and a pivotal support portion of the conductive support arm at one end portion. A conductive base that is rotatably supported by the provided shaft support mechanism portion and has a bolt non-rotatable insertion portion at the other end and a bolt head relative to the bolt non-rotational insertion portion of the conductive base. A conductive bolt engaged in a non-rotating state and inserted so that a bolt tip portion projects from the conductive base in a specific direction; and a base in a state where the conductive bolt is inserted into the conductive base. A base cover provided to receive the assembly into the hollow portion from the rear end opening, and to allow the shaft support mechanism of the conductive base to face the rear end opening so as to be housed in the hollow portion; Place the base on the bottom wall of the base cover. A bolt insertion long hole penetrated so as to have a long axis in the front-rear direction of the cover, and close to a head of the conductive bolt in a state in which a tip portion is completely inserted into the bolt insertion long hole. As opposed to each other, a bolt retaining member disposed in the hollow portion of the base cover,
One end of the power supply cable is screwed to a tip portion of the conductive bolt in a state of protruding outside from the bottom wall of the base cover and penetrating the vehicle roof and being introduced into the vehicle body. A nut connected to the conductive bolt and fixing the base cover to a vehicle roof.

[0007] In the above-mentioned apparatus, the support portion for setting the support angle of the rod antenna element to a predetermined angle is provided by fixing the support portion of the conductive support arm at a predetermined angle with respect to the support mechanism portion of the conductive base. One end portion is inserted into the opening at the rear end surface of the base cover, and the other end portion is conductive support so that the angle setting means and the shaft support mechanism provided with the support angle setting means are not exposed to the outside. It is preferable to add an arm cover provided so as to cover the entire arm. Further, the above device has a pad made of an elastic member mounted on the outer surface of the bottom wall of the base cover and enabling the outer surface of the bottom wall of the base cover to be able to adhere to the surface of the vehicle roof. A groove for drainage formed along the outer surface of the bottom wall and a ring-shaped projection for preventing water leakage formed on the inner peripheral surface of the bolt insertion hole formed in the bottom wall of the pad are added. Is preferred.

[0008]

The following effects are produced as a result of taking the above measures.

(1) This device is constructed by integrally combining components divided into a conductive support arm, a conductive base, a conductive bolt, a base cover, a nut and the like. Does not include a so-called insert part at all, and a press-formed product and a molded product having a simplified structure are connected by connecting elements such as bolts and nuts. Therefore, the configuration is simple, the production is easy, and the cost can be reduced.

(2) In assembling, first, a conductive bolt is inserted into a bolt non-rotational insertion portion of a conductive base which rotatably supports a conductive arm. At this time, the head-to-piece portion of the conductive bolt engages with a state in which it is fitted between two parallel sides of the bolt non-rotatable insertion portion of the conductive base. For this reason, the conductive bolt is in a state where it is prohibited from rotating naturally.

(3) Next, the base assembly in a state where the conductive bolts are inserted into the conductive base in a non-rotating state is inserted into the hollow portion from the rear end face opening of the base cover, and A shaft support mechanism is accommodated in the hollow portion so as to face the rear end face opening. At this time, the distal end portion of the conductive bolt projecting outward from the bottom wall of the base cover is inserted into a bolt insertion slot provided in the bottom wall of the base cover. Since the long hole has a long axis in the front-back direction of the base cover, even if the conductive bolt is inserted in an inclined state, it can be inserted without any trouble.

(4) A bolt retaining member disposed in the base cover is positioned close to and above the head of the conductive bolt in a state where the conductive bolt is completely inserted into the bolt insertion slot. For this reason, even if it tries to move the conductive bolt vertically from that state toward the head, that is, even if it tries to make the conductive bolt retreat, the head will hit the bolt retaining member, Its movement is blocked.

(5) Since the conductive bolt is thus held in a non-rotating state by the conductive base and is held in a state in which it cannot be retracted by the base cover, the bolt is temporarily immobilized when the nut is tightened. The bolt temporary fixing part is completely unnecessary. Therefore, while using parts such as a pressed product or a molded product in a simple mode, the number of parts is relatively small and the workability of assembling is good, so that the antenna mounting work can be performed easily and accurately. Becomes

(6) In the above device, one end portion of the base cover is provided so that the shaft support mechanism provided with the support angle setting means for setting the support angle of the rod antenna element to a predetermined angle is not exposed to the outside. The arm cover is provided so as to cover the entire conductive support arm when inserted into the rear end face opening. For this reason, it is possible to prevent the angle and the like of the rod antenna element from being tampered with from the outside, and to prevent the shaft support mechanism from being directly exposed to wind and rain.

(7) In the above device, a pad made of an elastic member is attached to the outer surface of the bottom wall of the base cover so that the outer surface of the bottom wall of the base cover can adhere to the surface of the vehicle roof. A groove for draining water is formed along the outer surface of the bottom wall of the cover, and a ring-shaped projection for preventing water leakage is formed on an inner peripheral surface of a bolt insertion hole provided in the bottom wall of the pad. Therefore, rainwater or the like that has entered the base cover is first discharged to the outside through the drain hole. And even if the water remaining in the base cover without being drained attempts to enter the vehicle body through the bolt insertion holes, the water is blocked by the ring-shaped projections to prevent water leakage, preventing the water from entering the vehicle body. Will be done.

[0016]

1 (a) and 1 (b) are a top view and a side view showing an outline of an automobile roof antenna 10 to which a vehicle roof antenna mounting device according to an embodiment of the present invention is applied. As shown in FIGS. 1A and 1B, the automobile roof antenna 10 includes a rod antenna element 1.
The one base end 12 is supported on the roof surface in an angle range θ of, for example, about 50 ° to 60 ° by an attachment device 20 described below fixed on the vehicle roof 13 so as to be able to undulate. Then, between the antenna feeding unit 14 introduced into the vehicle body via the mounting device 20 and a transmission set and / or a reception set (both not shown) installed in the vehicle body,
They are electrically connected by a power supply cable 15. Reference numeral 16 indicated by a two-dot chain line is a fitting-type shield cover that shields the antenna feed unit 14.

The base end 1 of the rod antenna element 11
A joint screw 12a that is screwed to a conductive support arm, which will be described later, protrudes from the base surface of 2. A joint cover 12b made of a hard resin is fitted on the outer periphery of the base end portion 12.

FIGS. 2A and 2B are a top view and a side sectional view, respectively, showing the structure of the vehicle roof antenna mounting device 20 in a partially cutaway manner. Also, FIG.
(C) is a side sectional view showing the mounting device 20 exploded into three parts.

FIGS. 2A and 3B and FIGS.
In (c), reference numeral 21 denotes a conductive support arm formed of a conductive member such as brass, for example, and a coupling portion detachably coupled to the base end portion 12 of the rod antenna element 11 at one end thereof. Specifically, a cylindrical portion 21b having an internal thread portion 21a on the inner peripheral surface to be screwed with the joint screw 12a is provided. The other end of the conductive support arm 21 is flatly crushed and has a shaft support 21c having a shaft hole in the center.
It has become.

The conductive base 22 is also formed by pressing a conductive member such as brass, for example. One end of the conductive base 22 is rotatably supported by a shaft support 21c of the conductive support arm 21. A supporting mechanism portion 22M for supporting is provided, and a gutter-shaped bolt non-rotatable insertion portion 22N having parallel side walls and a bottom wall having a bolt insertion hole is provided at the other end. . The shaft support mechanism 22M includes a shaft screw 22b inserted through a pair of parallel shaft support ends 22a, a washer 22c, and a female screw portion integrally formed on one outer surface of the shaft support end 22a. 22d, between the pair of shaft end portions 22a.
The shaft screw 22b is inserted with the pin 1c held therebetween, and the tip of the shaft screw 22b is screwed into the female screw portion 22d to tighten and fix. 22e shown in FIG.
Denotes a projection for positioning the base front end, and 22f denotes a hook for positioning the rear end of the base.

The conductive bolt 23 is inserted into the bolt non-rotating insertion portion 22N of the conductive base 22 with the bolt head 23a engaged in a non-rotating state. At this time, the bolt tip portion 23b of the conductive bolt 23 protrudes in a specific direction (toward the outer surface of the bottom wall) through a bolt insertion hole provided in the bottom wall of the conductive base 22.

A streamlined hollow base cover 24
Is integrally formed of an insulating member such as a hard synthetic resin.
The base cover 24 receives the base assembly in a state where the conductive bolts 23 are inserted into the conductive base 22 from the rear end opening 24 a into the hollow portion 24 b, and supports the base in the conductive base 22. The mechanism portion 22M is provided so as to be accommodated in the hollow portion 24b with the mechanism portion 22M facing the rear end surface opening portion 24a. 24c is its bottom wall, 24c
Reference numeral d denotes a positioning projection, which engages with a concave portion on the roof and specifies an azimuth angle.

The bolt insertion slot 25 is provided in the base cover 2.
4 is provided so as to penetrate the bottom wall 24c so as to have a long axis in the front-rear direction of the base cover 24. The bolt insertion slot 25 has an oval shape having a width slightly larger than the outer diameter of the conductive bolt 23 and a predetermined length as a whole. A groove 26 for forming a groove for draining water is provided on the outer surface of the bottom wall 24c of the base cover 24 in relation to a pad 30 described later.

The bolt retaining member 27 is so formed that the bottom wall thereof is in close proximity to the head 23a of the conductive bolt 23 in a state where the distal end portion has been completely inserted into the bolt insertion slot 25. The cover 24 is disposed inside the hollow portion 24b.

The nut 28 has a flange 28a on one side.
And is screwed to the tip portion 23b of the conductive bolt 23. That is, the conductive bolt 23 is in a state of protruding outside from the bottom wall 24c of the base cover 24, and is screwed and fixed to the distal end portion 23b of the conductive bolt 23 which is introduced into the vehicle body through the vehicle roof 13. It is something to be done. Thus, the nut 28
Electrically connects one end of the power supply cable 15 to the conductive bolt 23 and fixes the base cover 24 to the vehicle roof 13.

Although not shown, the shaft support mechanism 2
2M is provided with support angle setting means. As the support angle setting means, for example, a concave portion and a convex portion extending radially around the axis are provided on the joint surface between the shaft support end 22a of the shaft support mechanism 22M and the shaft support 21c of the conductive support arm 21. When the rod antenna element 11 is fixed to the shaft support mechanism 22M at a predetermined angle by tightening the shaft screw 22b when they are engaged with each other at a predetermined angle, It is assumed that the support angle is set to a predetermined angle.

The arm cover 29 is formed integrally with an insulating member such as a hard synthetic resin or the like, so that the shaft support mechanism 22M provided with the support angle setting means is not exposed to the outside, that is, from outside. In a state where one end of the cover 29 is inserted into the rear end opening 24a of the base cover 24 so that it cannot be seen, the other end is provided so as to cover the entire area of the conductive support arm 21.

The pad 30 is mounted on the outer surface of the bottom wall of the base cover 24, and is formed of an elastic member so that the outer surface of the bottom wall 24c of the base cover 24 can adhere to the surface of the vehicle roof. A groove 26 'for draining water is formed on the outer surface of the bottom wall 24c of the base cover 24 covered with the pad 30. A plurality (two in this embodiment) of ring-shaped projections 32 for preventing water leakage are formed on the inner peripheral surface of the bolt insertion hole 31 formed in the bottom wall of the pad 30. Reference numeral 33 denotes a projection for accommodating the positioning projection 24d, and reference numeral 34 denotes a fin for closing a gap. Next, the operation of the apparatus of the present embodiment configured as described above will be described.

The apparatus according to the present embodiment includes a conductive support arm 2
1, a conductive base 22, a conductive bolt 23, a base cover 24, a nut 28, and the like, each of which has a simple form and is integrally combined.
The above components do not include any so-called insert components. That is, a press-formed product or a molded product in a simplified form is connected by connecting elements such as bolts and nuts. Therefore, the configuration is simple,
It is easy to manufacture and reduces costs.

When assembling, first, the conductive arm 2
The conductive bolt 23 is inserted into the bolt non-rotational insertion portion 22N of the conductive base 22 which is rotatably supported by the shaft support mechanism 22M. At this time, the pair of hexagonal heads of the conductive bolts 23 engage with each other while being fitted between two parallel sides of the bolt non-rotational insertion portion 22N of the conductive base 22. For this reason, the conductive bolt 23 is in a state where it is prohibited to rotate naturally.

Next, the conductive bolt 23 is connected to the conductive base 22.
Is inserted into the hollow portion 24b through the rear end opening 24a of the base cover 24, and the shaft support mechanism 2 in the conductive base 22 is inserted into the hollow portion 24b.
The hollow portion 24 is positioned such that 2M faces the rear end opening 24a.
b. At this time, the bottom wall 24 of the base cover 24
The distal end portion 23b of the conductive bolt 23 protruding outward from the base cover 24 is inserted into a bolt insertion slot 25 provided in the bottom wall 24c of the base cover 24. Since the elongated hole has a long axis in the front-rear direction of the base cover 24, even if the conductive bolt 23 is inserted in an inclined state, it can be inserted without any trouble.

The base cover 24 is placed above the head of the conductive bolt 23 in a state where the conductive bolt 23 has been completely inserted into the bolt insertion slot 25.
The bolt retaining members 27 disposed in the inside are opposed to each other. For this reason, even if the conductive bolt 23 is to be moved in the direction of the head 23 a vertically from that state, that is, even if the conductive bolt 23 is to be moved backward, the head 23 a abuts the bolt retaining member 27. That movement is blocked.

Thus, the conductive bolt 23 is held in a non-rotating state by the conductive base 22 and the base cover 2
4, the bolt 23 is held in a state in which it cannot be retracted, so that there is no need for any bolt temporary fixing component for temporarily fixing the bolt 23 when the nut is tightened. Therefore, while using parts such as a pressed product or a molded product in a simple mode, the number of parts is relatively small and the workability of assembling is good, so that the antenna mounting work can be performed easily and accurately. Becomes

In the above-described apparatus, the arm cover 29 is attached so that the shaft support mechanism 22M provided with the support angle setting means for setting the support angle of the rod antenna element 11 to a predetermined angle is not exposed to the outside. . That is, the arm cover 29 is provided such that one end portion is inserted into the rear end face opening 24a of the base cover 24 and the other end portion covers the entire area of the conductive support arm 21. For this reason, the shaft support mechanism portion 22M does not need to be seen from the outside,
The angle and the like of the rod antenna element 11 can be prevented from being tampered with from the outside, and the shaft support mechanism 22M can be prevented from being directly exposed to wind and rain.

In the above-described apparatus, the outer surface of the bottom wall of the base cover 24 is attached to the outer surface of the bottom wall of the base cover 24.
By attaching a pad 30 made of an elastic member to make it possible to adhere to the surface of the base 3, a drain hole 26 ′ is formed along the outer surface of the bottom wall of the base cover 24.
A ring-shaped projection 32 for preventing water leakage is formed on the inner peripheral surface of the bolt insertion hole 31 provided on the bottom wall of the pad 30. Therefore, rainwater or the like that has entered the base cover 24 is first discharged to the outside through the drainage slot 26 '. Even if water remaining in the base cover 24 without being drained tries to enter the vehicle body through the bolt insertion holes 31, the water is blocked by the ring-shaped projections 32 for preventing water leakage. Intrusion will be prevented. The present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0036]

According to the present invention, since a pressed product or a molded product in a simple mode is integrated with a combination of mounting bolts and nuts, the structure is simple and the production is simple. Since it is easy, the number of parts is relatively small, and the assembling workability is good, it is possible to provide a roof antenna mounting device for a vehicle which can perform the antenna mounting work quickly and accurately.

[Brief description of the drawings]

FIG. 1 is a diagram showing an outline of a roof antenna for a vehicle to which a roof antenna mounting device for a vehicle according to an embodiment of the present invention is applied, wherein (a) is a top view and (b) is a side view.

FIG. 2 is a partially cutaway view of the configuration of the vehicle roof antenna mounting apparatus according to the embodiment, (a) is a top view,
(B) is a side sectional view.

3 (a) to 3 (c) are side sectional views showing the vehicle roof antenna mounting apparatus according to the embodiment in an exploded manner into three parts.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Roof antenna for vehicles 11 ... Rod antenna element 12 ... Base end 13 ... Roof 14 ...
Power supply unit 15 Power supply cable 16 Antenna power supply unit shield cover 20 Vehicle roof antenna mounting device 21
Conductive support arm 21a ... female screw part 21b ... cylindrical part 21c
... Axle support part 22 ... Conductive base 22M ... Axle support mechanism part 22N
... Bolt non-rotational insertion portion 22a ... shaft support end portion 22b ... shaft screw 22c
... washer 22d ... female screw part 22e ... base tip positioning protrusion 22f ... base rear end positioning hook part 23 ...
Conductive bolt 23a: bolt head 23b: bolt tip 2
4. Base cover 24a Rear end face opening 24b Hollow part 24c
... Bottom wall 24d ... Positioning projection 25 ... Long hole for bolt insertion 26 ... Groove for forming a groove for draining 27 ... Bolt retaining member 28 ... Nut 29 ... Arm cover 30 ...
Pad 31 ... Bolt insertion hole 32 ... Ring-shaped projection for preventing water leakage 33 ... Protrusion 34 ... Fin for closing a gap

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-56-137706 (JP, A) JP-A-56-31203 (JP, A) Fully open Showa 60-1006 (JP, U) Really open Showa 60- 37910 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01Q 1/22 H01Q 1/32

Claims (3)

(57) [Claims] 1. A vehicle for supporting a base end portion of a rod antenna element on a vehicle roof so as to be able to undulate and electrically connecting the antenna element to a transmission set and / or a reception set in a vehicle body. In the roof antenna mounting device, a conductive support arm having a coupling portion detachably coupled to a base end portion of the rod antenna element at one end and a pivotal support portion at the other end; and a pivotal support portion of the conductive support arm. A conductive base rotatably supported by a shaft support mechanism provided at one end and having a non-rotatable insertion portion at the other end; and a bolt attached to the non-rotatable insertion portion of the conductive base. A conductive bolt whose head is engaged in a non-rotational state and a bolt tip portion is inserted so as to protrude from the conductive base in a specific direction; and the conductive bolt is inserted into the conductive base. Condition base assembly A base cover provided so as to be received in the hollow portion from the rear end face opening, and to be accommodated in the hollow portion with the shaft support mechanism of the conductive base facing the rear end face opening. A long hole for bolt insertion penetrating the bottom wall of the base cover so as to have a long axis in the front-rear direction of the base cover; and the conductive bolt in a state where the tip portion is completely inserted into the long hole for bolt insertion. So as to face the head of
A bolt retaining member disposed in a hollow portion of the base cover; and the conductive member in a state of projecting outward from a bottom wall of the base cover and being introduced into a vehicle body through a vehicle roof. And a nut that is screwed to a distal end portion of the conductive bolt, connects one end of the power supply cable to the conductive bolt, and fixes the base cover to a vehicle roof. Roof antenna mounting device. 2. A support angle setting means for setting a support angle of a rod antenna element to a predetermined angle by fixing a support portion of a conductive support arm at a predetermined angle with respect to a support mechanism portion of a conductive base; One end portion is inserted into the opening at the rear end surface of the base cover, and the other end portion covers the entire conductive support arm so that the shaft support mechanism provided with the support angle setting means is not exposed to the outside. The vehicle roof antenna mounting device according to claim 1, further comprising: an arm cover provided as described above. 3. A pad which is attached to an outer surface of a bottom wall of the base cover and which is made of an elastic member which allows the outer surface of the bottom wall of the base cover to be able to adhere to the surface of the vehicle roof; and a bottom wall of the base cover which is covered by the pad. A drain hole formed along the outer surface, and a ring-shaped protrusion for preventing water leakage formed on an inner peripheral surface of a bolt insertion hole provided in a bottom wall of the pad. Item 4. The vehicle roof antenna mounting device according to Item 1.