JP2003318619A - Antenna assembling and attaching structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an antenna assembling and attaching structure which realizes a) fastening the antenna, b) connecting a signal line and c) ensuring a ground at once. <P>SOLUTION: The antenna assembling and attaching structure is for assembling an antenna unit with a counter member and for connecting an antenna signal line. The antenna unit has a boss to be fitted into a through-hole formed into the counter member. The boss has a terminal recessed in approximately parallel direction to the counter member. An antenna assembling means provided at one end of a signal line to be connected to the antenna signal line has a pair of movable holders for holding the boss; a projective terminal to be fitted into the recessed terminal in a conductive state thereto, when the holders hold the boss at one end of the signal line to be connected to the antenna signal line; and a ground to be contacted to the counter member, when the holders hold the boss. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to a structure for assembling an antenna unit to a substantially plate-like member, and more particularly, when assembling the antenna on a vehicle body panel,
a) Fastening the antenna unit to the vehicle body panel, and b)
The present invention relates to an antenna assembly structure that simultaneously realizes connection of antenna signal lines and c) securing of ground.

[0002]

2. Description of the Related Art As a conventional structure for mounting an antenna on a vehicle body panel, for example, Japanese Patent Laid-Open No. 2001-16861 is used.
The structure disclosed in Japanese Patent Publication No. 5 is known.

The antenna mounting nut disclosed in the above-mentioned document uses a nut having a cable passed through the shaft center and a wave washer, as shown in FIG. 4 of the document. And c) simultaneously securing the earth.

[0004]

However, the above-mentioned conventional antenna assembly structure has some problems.

First, the above-mentioned conventional antenna mounting nut is
The screw fastening work becomes complicated. That is, the worker who fastens the nut has 1) an upward posture in a narrow vehicle compartment, 2) a spanner is used because the box wrench cannot be used due to the presence of the above-mentioned cable, and 3) a fastening process and a cable connecting process. Two steps must be performed.

Further, in the above-mentioned conventional antenna mounting nut, the more the tightening torque is increased, the more stable the earth is secured, but the strong tightening torque distorts the vehicle body panel. In other words, the tightening torque must be carefully determined in consideration of securing the earth and the influence on the panel, which are in a trade-off relationship. However, since the torque wrench cannot be used due to the presence of the above-mentioned cable, the skill of the operator is large, and the torque management becomes complicated. If the accuracy of this management deteriorates, there is a possibility that the ground will be lost and the antenna performance will be significantly deteriorated, or the panel will be distorted and the commercialability of the vehicle will be deteriorated.

Further, in the above-mentioned conventional structure in which the ground is secured only by tightening the nut, it is difficult to secure the ground when the screw loosens due to aging.

As described above, the above-mentioned conventional antenna assembly structure has problems that the assembly work is complicated and the reliability of grounding is low.

The present invention was made mainly to solve the above problems, and includes a) fastening an antenna,
The main purpose is to provide an antenna assembly structure that simplifies the assembly work by simultaneously realizing b) signal wire connection and c) reliable grounding, and improving the reliability of grounding. .

[0010]

According to one aspect of the present invention, an antenna unit is attached to a substantially plate-shaped counterpart member and an antenna signal line of the antenna unit is connected to the counterpart signal line. In the assembly structure, the antenna unit has a protrusion that is inserted into a through hole provided in the assembly partner member when the antenna unit is assembled to the assembly partner member, Is provided at one end of the antenna signal line so as to be exposed from the assembly counterpart member when the protrusion is inserted into the through hole,
The connection partner has a concave terminal portion that is recessed in a direction substantially parallel to the assembly partner member, the connection partner signal line has an antenna assembly means at one end of the connection partner signal line, and the antenna assembly means is , Having a pair of portability for gripping the protrusion by engaging with the outer wall surface of a portion of the protrusion exposed from the assembly counterpart member when the protrusion is inserted into the through hole A gripping portion, one end of the connection counterpart signal line, and a convex terminal portion that is provided so as to be engaged with the concave terminal portion to conduct when the gripping portion grips the protrusion portion; The antenna assembly structure is characterized in that it has a grounding part provided so as to come into contact with the assembly counterpart member when the gripping part grips the projection part.

In this aspect, the assembly partner member is, for example, a metal plate such as a vehicle body panel, and the connection partner signal line is, for example, a coaxial wire connected to an in-vehicle tuner.

According to this aspect, since the concave terminal portion and the convex terminal portion are engaged with each other when the grip portion grips the protrusion portion, the gap between both terminals is retained. Continuity is secured.

Further, since the concave terminal portion is recessed in a direction substantially parallel to the assembly counterpart member, the concave terminal portion and the convex terminal portion are fitted with each other, and at that time, the antenna. Since the grounding part of the assembling means is in contact with the assembly partner member, the antenna unit is locked in the direction perpendicular to the assembly partner member.

Further, in the above-described engaged / locked state, the grounding portion is in contact with the assembly counterpart member, so that the grounding of the antenna unit is reliably ensured.

As described above, according to the above aspect, the antenna assembling means is simply connected to the protrusion of the antenna unit inserted in the assembling partner member, and Conclusion,
b) Connection of the antenna signal line and c) reliable securing of the ground are realized at one time.

In the above one aspect, the grounding portion may be provided with a pressing means composed of a conductive spring, a leaf spring, or the like in order to ensure more reliable contact with the assembly partner member. Good.

Further, in the above aspect, the grounding portion scratches the assembly partner member when the gripping portion grips the protrusion, and when the gripping portion grips the protrusion, Scratching means may be provided for engaging the assembly partner member with the assembly partner member in a scratched state.

In this case, the scribing means is, for example, a projection provided on the surface where the grounding portion comes into contact with the assembly counterpart member, until the antenna assembly means is completely engaged with the projection. During this period, the scribing means proceeds while scribing on the assembly partner member, so even if coating or rust prevention is coated on the inner surface of the assembly partner member, these layers are scraped. It can reach the inside of the lever and secure the ground. Further, since the scribing means catches and locks the assembly partner member in a scraped state, the coupling between the antenna unit, the assembly partner member and the antenna assembly means becomes stronger, and the antenna unit. It is possible to realize a strong fastening to the vehicle body panel and prevent the reliability of the ground from being deteriorated due to secular change or vibration.

Further, in the above-mentioned one aspect, all or part of the circuit configuration of the antenna unit may be provided in the antenna assembling means.

In this case, a circuit configuration such as an amplifier or a matching circuit, which is usually provided in the base portion (outside the vehicle) of the antenna unit, is provided in the above-mentioned antenna assembling means, which is an in-vehicle component, so that the received signal is amplified immediately after the antenna. It is possible to improve the appearance of the antenna in design and to avoid the possibility of damage due to foreign matter collision while taking into consideration such signal processing viewpoints.

[0021]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram showing how the antenna unit according to the present embodiment is installed on a vehicle body panel, and FIG. 2 shows the antenna unit according to the present embodiment installed on the vehicle body panel. It is a schematic diagram which shows a mode that an antenna assembly member is combined with a projection part, and FIG. 3 shows a mode that an antenna assembly member is combined with the projection part of the antenna unit according to this embodiment installed on the vehicle body panel. It is a schematic diagram.

The antenna unit 10 according to this embodiment
1 has an antenna rod portion 102, an antenna base portion 103, and a protrusion portion 104. When the antenna unit 101 is mounted on a vehicle body panel 105 such as a roof, the protrusion 104 is inserted into a through hole 106 provided in the vehicle body panel 105 in advance. Protrusion 10
When the plug 4 is inserted into the through hole 106, a part of the lower end thereof projects from the vehicle body panel as shown in FIG.

Here, in the present embodiment, as shown in the figure, the sectional shape of the protrusion 104 and the shape of the through hole 106 are both quadrangular, but both shapes may be arbitrary. However, whichever shape is used, from the viewpoint of assembly stability, as shown in FIG.
It is preferable that the inner circumference of 06 matches.

Inside the protrusion 104, the antenna signal line 1
07 is inserted, and a concave terminal portion 108 that is one end of the antenna signal line 107 is provided at the lower end portion of the protrusion 104. The recessed terminal portion 108 has a recessed opening portion on one side surface of the protrusion 104, and the depth direction thereof is substantially parallel to the vehicle body panel 105.

The concave terminal portion 108, as shown in FIG.
In the lower end portion of the protrusion, the protrusion 104 has a through hole 106.
It is provided in a portion that protrudes from the vehicle body panel 105 when it is inserted into. As a result, the opening portion of the concave terminal portion 108 is exposed inside the vehicle.

The assembling member 201 is a member provided at one end of the in-vehicle signal line 202, which is a coaxial line connected to, for example, an in-vehicle tuner, and is a) for fastening the antenna unit 101 to the vehicle body panel 105. , B) The connection between the antenna signal line 107 and the in-vehicle signal line 202 and c) the grounding of the antenna unit 101 are simultaneously realized.

As shown in FIG. 2, the assembling member 201 is a member having a generally U-shape. Both U-shaped arm portions 203 are portable and have a shape for gripping the protrusion 104. That is, as shown in FIGS. 2 and 3, the outer wall surface of the protrusion 104, particularly the concave terminal portion 108, is attached to the tips of both arm portions 203 of the assembly member 201.
A locking claw 204 that functions as a hook is provided on the surface opposite to the wall surface provided with.

The assembly member 201 is indicated by an arrow A in FIG.
3 (that is, the Y-axis direction) is assembled to the protrusion 104, and finally the engagement state shown in FIG. 3 is obtained. Here, as shown in FIGS. 2 and 3, both arms 203
The length a in the Y-axis direction along the inner wall from the base of the to the locking claw 204 is approximately equal to the Y-axis direction width a ′ of the outer wall surface of the protrusion 104, and the distance b between the inner walls of both arm portions 203 is Protrusion 104 that is perpendicular to the arrow A direction (that is, parallel to the Z-axis direction)
Is substantially equal to the width b ′ of the outer wall surface in the X-axis direction. Therefore, as shown in FIG. 3, in the final engagement state, the assembly member 201 holds the outer periphery of the protrusion 104 with substantially no space.

Here, the assembly member 201 is attached to the projection 10
When the assembling member 201 is advanced in the direction of arrow A for assembling to No. 4, the locking claw 204 first collides with the protrusion 104. However, due to the portability of both arms 203 and the shape of the locking claw 204 as shown in the figure, both arms 203
Is bent so that its open side (the tip side provided with the locking claw 204) spreads outward, so that the assembly member 201 is attached to the member 2
01 can be pushed further in the direction of arrow A.

When the assembling member 201 further advances in the direction of arrow A and the locking claw 204 crosses the protrusion 104, both arm portions 2
The bending of 03 is restored, and the locking claw 204 is related to the outer wall surface of the protrusion 104, as shown in FIG. Here, the open arms 203 and the locking claws 204 are closed to their original positions,
It is considered that when the engagement state of FIG. 3 is reached, the both arms 203 and / or the locking claws 204 collide with the protrusion 104 at a certain speed, and thus a collision sound such as “click” or “click” occurs. By this collision sound, the operator can easily recognize that the assembly member 201 is completely assembled to the protrusion 104.

The assembling member 201 further has a convex terminal portion 205, which is one end of the in-vehicle signal line 202 and projects inward in a substantially U-shape in the same direction as the both arm portions 203. The convex terminal portion 205 forms a pair with the concave terminal portion 108, and when fitted to the concave terminal portion 108, makes the antenna signal line 107 and the in-vehicle signal line 202 conductive.

As shown in FIG. 3, the convex terminal portion 205 is
In a state where both arm portions 203 grip the protrusion 104,
The concave terminal portion 108 and the convex terminal portion 205 are provided so as to fit with each other. In this fitted state, the locking claw 204
Kept by. That is, the locking claw 204 is the protrusion 1
Assembling member 2 by engaging with the outer wall surface of 04
The movement of 01 in the Y-axis direction is restricted, and the convex terminal portion 205 is prevented from coming off the concave terminal portion 108. Of course,
Both terminals may have a locking function to prevent the terminals from coming off.

Here, the assembly member 201 is attached to the projection 10
The concave terminal portion 108 defines the position of the convex terminal portion 205 in the up-down, left-right direction when advancing in the direction of the arrow A for assembling into 4. Therefore, the concave terminal portion 108 also serves as a guide for the assembling of the assembling member 201.

Further, the concave terminal portion 108 and the convex terminal portion 2
By fitting with 05, the assembling member 201 holds the protrusion 104 without dropping vertically downward with respect to the Z axis.

In addition, as shown in FIG. 3, when the assembling member 201 holds the projection 104, the top surface of the assembling member 201 in the Z-axis direction is the vehicle body panel 105.
Since it is designed to contact the inner surface of the antenna,
The grounding of the unit 101 is ensured, and the antenna unit 101 is prevented from coming out of the through hole 106 in the Z-axis direction in the upper direction in combination with the fitting of the both terminal portions 108 and 205.

Here, the vehicle body panel 1 is provided for securing the ground.
05, a conductive spring, a leaf spring, or the like is provided on the top surface of the assembling member 201 for abutting the abutment member 05 so that the assembling member 201 presses the vehicle body panel upward in the Z-axis direction. May be.

As described above, according to this embodiment, a) the antenna unit 10 is obtained by only one step of assembling the assembling member 201 to the antenna unit 101 in which the protrusion 104 is inserted into the through hole 106.
1) to the vehicle body panel 105, b) Antenna signal line 107 of the antenna unit 101 and signal line 202 inside the vehicle
Since the connection with and the secure c) grounding of the antenna unit 101 are realized at the same time, the work is simplified and the work time is shortened.

Further, according to this embodiment, since it is not necessary to force the worker to work in an unnatural posture, the burden on the worker is small. Furthermore, the assembling work according to the present embodiment does not require work using a tool such as a spanner or management of tightening torque, and does not require the skill level of the worker, so that even when the worker changes, it is artificial. It is possible to significantly reduce the possibility that a mistake occurs.

Further, according to this embodiment, the worker
The fact that the assembly member 201 according to the present embodiment has been correctly assembled can be easily and audibly recognized and confirmed by the above-mentioned collision sound. The fact that the collision sound is heard means that the convex terminal portion 205 is correctly inserted into the concave terminal portion 108 and both the arm portions 203 grip the protrusion portion 104. Therefore, the torque management and the continuity inspection by the torque wrench are performed. It is possible to easily confirm that the fastening of the antenna unit and the connection of the signal line are realized without performing another process such as.

As another embodiment, as shown in FIG. 4, one or more scribing protrusions 401 may be provided on the top surface of the assembling member 201. In the illustrated example, scribing protrusions 401 are provided in three rows along both arm portions 203 and convex terminal portions 205. The scribing protrusion 401 has hardness and rigidity sufficient to scrape the steel plate of the vehicle body panel 105 and / or its surface layer.

During the operation of assembling the assembling member 201 to the protrusion 104, the scribing protrusion 401 is moved to the vehicle body panel 105.
Since the process proceeds while scraping the inner surface of the car, in the final assembled state shown in FIG.
05 is caught in the middle of cutting. It is considered that this engagement becomes stronger as the number of scribing protrusions 401 is increased. In particular, as shown in the drawing, by forming a row in parallel with the traveling direction of the assembly member 201, it is possible to scribe a plurality of times on the same line, and it is possible to scribe deeply and firmly.

Therefore, such a scribing protrusion 401
By providing, even if the region of the vehicle body panel 105 to which the antenna unit 101 is assembled is curved, it is possible to reliably secure the ground with a small contact area. Even when the inner surface of the vehicle body panel 105 is coated with paint, rust preventive, or the like, the scribing protrusions 401 scrape off these surface layers and reach the steel plate inside the scribing protrusions 401, so that the earth is surely grounded. Can be secured. Further, the earth realized by the scribing protrusion 401 is strong against aging and vibration. The strength of this engagement also strengthens the assembly itself of the assembly member 201 to the protrusion 104.

As yet another embodiment, the assembly member 201 may be provided with a circuit configuration such as a preamplifier or a matching circuit, which is usually considered to be provided in the antenna base 103. . By adopting such a configuration, the whole or a part of the configuration of the antenna base portion 103 can be housed in the vehicle, and the appearance of the antenna unit 101 can be improved in terms of design. Further, by reducing the number of elements installed outside the vehicle, it is possible to avoid the possibility of being damaged by a foreign substance colliding. Here, in particular, the preamplifier is provided in the antenna base because of the signal processing requirement that it is preferable to amplify the received signal immediately after the antenna, but even if it is provided in the assembly member 201, this requirement is not satisfied. It is filled.

In any of the above embodiments,
By opening the locking claws 204 to the outside using a tool such as pliers, the assembly member 201 can be easily removed from the engaged state shown in FIG. That is, in any of the above-described embodiments, the assembly member 201 can be attached and detached, so that the antenna unit 101 can be easily replaced.

Further, in any of the above embodiments,
The assembly member 201 is made of, for example, synthetic resin, but can be made of other materials.

Further, in any of the above embodiments,
Although the case where the antenna unit is assembled to the vehicle body panel has been described, it is obvious that the assembly partner member is not limited to the vehicle body panel and is not limited to an automobile application.

Further, in any of the above embodiments, it is apparent that the male and female types of the connecting terminal portions 108 and 205 to be fitted may be opposite. However, the protrusion 10
Considering that 4 is inserted into the through hole 106, it can be said that it is easier to assemble when the protrusion 104 side is a female mold.

Furthermore, those skilled in the art will appreciate that the dimensions and shapes shown are merely examples for implementing the invention and are intended to embody the principles and concepts of the invention disclosed herein. If so, the size and shape of each component are not limited to those described in the above embodiment.

[0050]

As described above, according to the antenna assembly structure according to claim 1 of the present invention, a) the fastening of the antenna unit, b) the connection of the antenna signal line, and c) the reliable grounding. Reservation is realized at once.

According to the antenna assembling structure according to the second aspect of the present invention, even when the assembly partner member is curved or the surface of the assembly partner member is coated. Even if there is, you can surely secure the ground.

Further, according to the antenna assembling structure of the third aspect of the present invention, the appearance of the antenna is improved in design and the possibility of damage due to foreign matter collision is avoided while considering the viewpoint of signal processing. can do.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing how an antenna unit according to an embodiment of the present invention is installed on a vehicle body panel.

FIG. 2 is a schematic view showing a state in which an antenna assembly member according to an embodiment of the present invention is coupled to a protrusion of an antenna unit installed on a vehicle body panel.

FIG. 3 is a schematic diagram showing a state in which an antenna assembly member according to an embodiment of the present invention is coupled to a protrusion of an antenna unit installed on a vehicle body panel.

FIG. 4 is a schematic diagram showing an appearance of an antenna assembly member according to another embodiment of the present invention.

[Explanation of symbols]

101 antenna unit 102 Antenna rod part 103 Antenna base 104 protrusion 105 body panel 106 through hole 107 antenna signal line 108 concave terminal 201 Assembly member 202 Inside signal line 203 both arms 204 Locking claw 205 convex terminal 401 Scribing protrusion

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 5E021 FB20 FC21 FC31 FC36 HC12                       LA01                 5E087 FF15 FF17 HH04 MM09 MM17                       PP04 QQ04 RR03                 5J047 AA06 AA09 AA14 AB06 EB01                       EB05

Claims (3)

[Claims] 1. An antenna mounting structure for mounting an antenna unit to a substantially plate-shaped counterpart member and connecting an antenna signal line of the antenna unit to the counterpart signal line, wherein the antenna unit is When the antenna unit is assembled to the assembly partner member, the antenna unit has a protrusion that is inserted into a through hole provided in the assembly partner member, and the protrusion is one end of the antenna signal line. A connection terminal that is provided so as to be exposed from the assembly partner member when the protrusion is inserted into the through hole and that is recessed in a direction substantially parallel to the assembly partner member. The side signal line has an antenna assembling unit at one end of the connection partner side signal line, and the antenna assembling unit is configured such that the protrusion is inserted into the through hole. A pair of portable gripping parts for gripping the projection part by engaging with the outer wall surface of the part of the projection part exposed from the assembly partner member when the connection part signal wire A convex terminal portion that is provided at one end of the grip portion so as to be fitted and conductive with the concave terminal portion when the grip portion grips the protrusion portion, and the grip portion grips the protrusion portion. And a grounding portion provided so as to come into contact with the assembly counterpart member. 2. The antenna assembling structure according to claim 1, wherein the grounding part scratches the assembly partner member when the gripping part grips the projection part, and the gripping part forms the projection. An antenna assembling structure, comprising scribing means for engaging the assembly partner member with the assembly partner member when the member is gripped. 3. The antenna assembling structure according to claim 1, wherein the antenna assembling means is provided with all or a part of the circuit configuration of the antenna unit.