JP2019134346A - On-vehicle antenna device - Google Patents

Abstract

To provide an on-vehicle antenna device including a vehicle contact part with a plate spring part which is not easily damaged.SOLUTION: An on-vehicle antenna device includes: a metal base 8 attached to a vehicle; an antenna case covering the metal base 8; an antenna element part provided above the metal base 8; and a vehicle contact part (a first vehicle contact part 11a) which contacts with the vehicle and is formed by a conductor. The vehicle contact part has: a plate-like part (a first plate-like part 41a) electrically connected with the metal base 8; a plate spring part (a first plate spring part 21a) which extends from the plate-like part and contacts with the vehicle; and a protection part (a first protection part 31a) which protects the plate spring part between the plate spring part and the vehicle.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vehicle-mounted antenna device.

Conventionally, as in Patent Document 1, an in-vehicle antenna including a conductor plate (vehicle contact portion) electrically connected to a metal base has been proposed.
The conductor plate is provided with a leaf spring portion extending so as to approach the vehicle. When the vehicle-mounted antenna device is attached to the vehicle, the leaf spring portion contacts the roof of the vehicle, and between the metal base and the vehicle. A reduction in antenna gain due to unnecessary resonance is suppressed.

Japanese Unexamined Patent Publication No. 2016-32166

  However, the leaf spring portion has a problem that it has a low mechanical strength and is easily damaged.

  Accordingly, an object of the present invention is to provide an in-vehicle antenna device including a vehicle contact portion in which a leaf spring portion is not easily damaged.

  A vehicle-mounted antenna device according to the present invention includes a metal base that is attached to a vehicle, an antenna case that covers the metal base, an antenna element portion that is provided above the metal base, and a vehicle that is in contact with the vehicle and that is made of a conductor. A flat plate portion electrically connected to the metal base, a flat spring portion extending from the flat plate portion and contacting the vehicle, and a flat plate between the flat spring portion and the vehicle. And a protection part for protecting the spring part.

  Since the protection portion protects the leaf spring portion, it is possible to prevent the leaf spring portion from being damaged as compared with a configuration in which the protection portion is not provided.

  Preferably, the region of the leaf spring portion that is protected by the protection portion is provided on the side where the metal base is located, rather than the protection portion.

  The protection part also functions as a cushion and can protect the leaf spring part.

  More preferably, at least a part of the region of the protection part overlaps with a region where the leaf spring part is protected when viewed from the vehicle mounting side.

Since the region protected by the protection part in the leaf spring part is overlapped with at least a part of the protection part when viewed from the attachment side to the vehicle, the in-vehicle antenna device from the attachment side to the vehicle rather than the protection part It is possible to prevent the leaf spring part from being damaged by contact with an area (such as an operator's hand, tool, etc.) other than the contacted area of the leaf spring part.
Further, even when a force is applied to deform the region protected by the leaf spring portion downward, the deformation is suppressed by the protection portion, so that the leaf spring portion can be prevented from being damaged.

  More preferably, the vehicle contact portion is constituted by a rectangular conductor, and the conductor has a rectangular shape, and extends from one end portion of the first region and the first region which is a flat plate-like portion, and the first region. The second region that becomes a leaf spring portion is in contact with or in contact with a portion other than one end of the first region, and extends from the other end of the first region, and overlaps at least a part of the second region to form a protective portion. 3 regions.

  As a result, the vehicle contact portion can be easily formed by bending one rectangular plate.

  In addition, by bending a plurality of rectangular plates arranged via a connecting portion provided at an end in the width direction of the flat plate-like portion, a plurality of leaf spring portions and a protection portion that protects the leaf spring portion can be easily obtained. Can be formed. Forming leaf springs and the like in this way increases productivity compared to forming multiple leaf springs by other methods, such as preparing multiple vehicle contact parts molded with a mold and connecting them together. Can be improved.

  Preferably, the vehicle contact portion is composed of a conductor having one end formed in a T-shape, and the conductor has a rectangular shape, and includes a first region serving as a flat plate portion, and a first region A second region that extends from one end and is close to or in contact with a portion other than one end of the first region and serves as a leaf spring portion, and one end formed in a T-shape and the other of the first region A third region which is in contact with the end of the second region and overlaps at least a part of the second region to serve as a protection portion.

An end portion in the width direction at the distal end portion of the leaf spring portion is covered with a protection portion or the like. For this reason, it can prevent that the force from the width direction is added to the front-end | tip part of a leaf | plate spring part.
Further, even when a force in the width direction is applied to the leaf spring portion and the tip portion of the leaf spring portion is deformed in the width direction, the deformation is suppressed by the protection portion or the like, so that the leaf spring portion is prevented from being damaged. I can do it.

  Preferably, the vehicle contact portion includes a first part constituted by a rectangular conductor and a second part constituted by a conductor having one end formed in a T shape, The rectangular conductor includes a first region serving as a flat plate portion, a second region extending from one end portion of the first region, adjacent to or in contact with other than one end portion of the first region, and serving as a leaf spring portion. A conductor having a third region in contact with the other end of the first region and provided with a fitting hole, and having one end formed in a T shape. A fourth region serving as a protection portion by overlapping with at least a part of the second region, and a fifth region provided with a projection fitted into the fitting hole, and the outer diameter of the projection Is smaller than the inner diameter of the fitting hole.

It is necessary to use a leaf spring portion having a predetermined spring constant from the shape of the vehicle to which the vehicle-mounted antenna device is attached, and it is difficult to set the thickness freely.
The second part (upper part) including the protection part is configured separately from the first part (lower part) including the leaf spring part. For this reason, the thickness of a protection part can be set irrespective of the thickness of a leaf | plate spring part. As a result, it is possible to realize a vehicle contact portion in which the leaf spring portion is less likely to be damaged than in a configuration in which the leaf spring portion and the protection portion are configured integrally.

  As described above, according to the present invention, it is possible to provide an in-vehicle antenna device including a vehicle contact portion in which the leaf spring portion is not easily damaged.

It is the cross-sectional perspective view seen from the upper part which shows the internal structure of a vehicle-mounted antenna apparatus. It is the perspective view seen from the lower part which shows the state before each part of the vehicle-mounted antenna apparatus containing a 1st vehicle contact part is assembled. It is the perspective view seen from the bottom which shows the state where the 1st vehicle contact part was attached to the metal base. It is the perspective view which looked at the 1st vehicle contact part from the lower part. It is the perspective view which looked at the conductor board before bending and forming the 1st vehicle contact part from the lower part. It is the perspective view which looked at the 2nd vehicle contact part from the lower part. It is the perspective view which looked at the conductor board before bending and forming a 2nd vehicle contact part from the downward direction. It is the perspective view seen from the lower part which shows the 3rd vehicle contact part before attaching the 1st lower part to the 1st upper part. It is the perspective view seen from the lower part which shows the 3rd vehicle contact part after attaching the 1st lower part to the 1st upper part. It is the perspective view seen from the lower part which shows the state before each part of the vehicle-mounted antenna apparatus containing a 3rd vehicle contact part is assembled. It is the perspective view seen from the lower part which shows the state by which the 3rd vehicle contact part was attached to the metal base provided with the dent area | region and the non-deformation wall. It is the perspective view seen from the lower part which shows the state by which the 3rd vehicle contact part was attached to the metal base provided with the dent area | region and the deformation | transformation wall. It is the perspective view seen from the lower part which shows the area | region with the 1st leaf | plate spring part by which the side surface was provided in the 1st protrusion area | region. It is a bottom view which shows the area | region with the 1st leaf | plate spring part by which the side surface was provided in the 1st protrusion area | region. It is the perspective view seen from the lower part which shows the 4th vehicle contact part before attaching the 2nd lower part to the 2nd upper part. It is the perspective view seen from the lower part which shows the state by which the 4th vehicle contact part was attached to the metal base provided with the dent area | region. It is the perspective view seen from the lower part which shows the state by which the 5th vehicle contact part was attached to the metal base.

Hereinafter, the first embodiment will be described with reference to the drawings.
Note that the embodiments are not limited to the following embodiments. In addition, the contents described in one embodiment can be applied to other embodiments in principle as well. Moreover, each embodiment and each modification can be combined suitably.

(First embodiment)
An in-vehicle antenna device 1 according to the first embodiment is attached to an upper surface of a vehicle such as a roof as shown in FIGS. 1 and 2, for example, and includes an antenna case (exterior case 2a, interior case 2b), pad 3, and antenna element unit. (First antenna element 4a, second antenna element 4b), substrates (first substrate 6a, second substrate 6b), metal base 8, and vehicle contact portion (first vehicle contact portion 11a).

  In order to describe the direction, the front-rear direction of the vehicle to which the vehicle-mounted antenna device 1 is attached is described as the x direction, the left-right direction perpendicular to the x direction is the y direction, and the substantially vertical direction perpendicular to the x direction and the y direction is the z direction. To do. In FIG. 1, the directions indicated by the respective arrows on the xyz axis are defined as the forward direction, the right direction, and the upward direction, respectively.

  The exterior case 2a is made of a synthetic resin having radio wave permeability, and has, for example, a shark fin shape that is inclined such that the front side in the x direction is lower than the rear side in the x direction and both side surfaces are curved inward.

  The exterior case 2a is a member having a lower surface opened and constituting the vehicle-mounted antenna device 1. The outer case 2 a covers the metal base 8. Thereby, for example, the interior case 2b and the antenna element portion are accommodated in the space formed by the exterior case 2a and the metal base 8 (see FIG. 2).

  The outer case 2a is provided with a locking claw for attachment to the metal base 8 so as to protrude downward from the inner wall in the z direction. The locking claws engage with the metal base 8 when the outer case 2 a is fixed to the metal base 8.

The interior case 2b is made of a synthetic resin having radio wave permeability and is a member that constitutes the in-vehicle antenna device 1 with a lower surface opened. The interior case 2b covers the first substrate 6a. Thereby, for example, the antenna element portion is accommodated in the space formed by the interior case 2b and the first substrate 6a.
The first antenna element 4a is attached to the outer wall of the interior case 2b by screwing or the like, and the first antenna element 4a and the second substrate 6b are electrically connected through the screwing screw.

  The pad 3 is an annular elastic member made of elastomer (Elastomer) or rubber. The pad 3 is sandwiched between the lower end periphery of the interior case 2b and the metal base 8, and blinds the gap between the lower end periphery of the interior case 2b and the vehicle and prevents water from entering the interior case 2b.

The antenna element section has one or more antenna elements and is attached above the metal base 8 such as the interior case 2b and the first substrate 6a.
In the first embodiment, the antenna element section includes a first antenna element 4a including a capacitive loading element that receives a signal such as an FM wave band, and a planar antenna for receiving position information (time information) from a satellite such as GPS. However, the number of antenna elements and the types of signals received by the antenna elements are not limited to this.
The first antenna element 4a is attached to the outer wall of the interior case 2b, and the second antenna element 4b is attached to the first substrate 6a.

The first substrate 6a and the second substrate 6b are for mounting electronic components related to the antenna element unit 4 such as an antenna amplifier that amplifies the received signal of the first antenna element 4a. The first substrate 6a is an upper part of the metal base 8. The second substrate 6b is attached so as to stand on the first substrate 6a.
A cable (not shown) electrically connected to the first substrate 6a extends to the roof of the vehicle via a cable hole 8a provided in the metal base 8.

  The metal base 8 is a metal plate that holds the first substrate 6a.

  On the lower surface of the metal base 8, there is provided a seal member 9 which is an annular elastic member formed of elastomer, rubber, urethane foam or the like. The seal member 9 is watertightly sealed around the region between the metal base 8 and the vehicle roof and provided with the mounting holes.

  Note that a resin base that holds the metal base 8 may be further provided, and the resin base may sandwich the pad 3 with the interior case 2b.

  In addition, a vehicle contact portion (first vehicle contact portion 11a) that partially contacts the roof of the vehicle when the in-vehicle antenna device 1 is attached to the vehicle is provided on the lower surface of the metal base 8.

  The 1st vehicle contact part 11a in 1st Embodiment is used in order to change the frequency of the unnecessary resonance which generate | occur | produces in the vehicle-mounted antenna apparatus 1 into the frequency outside the desired zone | band of the vehicle-mounted antenna apparatus 1. FIG. The 1st vehicle contact part 11a contacts the metal base 8 and a vehicle, and is comprised with a conductor. As shown in FIGS. 3 and 4, the first vehicle contact portion 11a includes a first leaf spring portion 21a, a first protection portion 31a that protects the first leaf spring portion 21a, and a first flat plate portion 41a. . The first vehicle contact portion 11a is an example of a vehicle contact portion, the first flat plate portion 41a is an example of a flat plate portion, the first leaf spring portion 21a is an example of a plate spring portion, and a first protection. The part 31a is an example of a protection part.

The first flat plate portion 41a is in contact with the lower surface of the metal base 8, and is attached to the metal base 8 by adhesion or adhesion.
A non-conductive member such as a resin base is disposed between the metal base 8 and the first flat plate portion 41a, and the metal base 8 and the first flat plate portion 41a are interposed via a conductive member such as a screw to be screwed. And may be electrically connected.

  The first leaf spring portion 21a extends from the first flat plate portion 41a and comes into contact with the vehicle. For example, the first leaf spring portion 21a is bent at one end portion in the x direction of the first flat plate portion 41a and from the tip end in the x direction, which is substantially U-shaped when viewed from the y direction. It extends in the x direction via the portion 51a, is disposed below the first flat plate portion 41a in the z direction, has a region projecting downward in the z direction (first projecting region 21a1), and in the first projecting region 21a1 The lower surface contacts the vehicle.

The first protection portion 31a is provided between the first leaf spring portion 21a and the vehicle, and protects the first leaf spring portion 21a by overlapping with a partial region of the first leaf spring portion 21a in the z direction. For example, the first protection part 31a is the first protection part side bent part 52a which is the other end part in the x direction of the first flat plate part 41a and is substantially U-shaped when viewed from the y direction from the tip in the x direction. The first flat plate portion 41a is disposed below the first flat plate portion 41a in the z direction. In other words, the first protection part 31a is arranged in parallel with the first flat plate-like part 41a and below the first flat plate-like part 41a in the z direction.
One end of the first protection part 31a is in contact with the first flat plate part 41a via the first protection part side bent part 52a, and has a rectangular shape when viewed from the z direction.

As shown in FIG. 4, the end portion in the x direction of the first leaf spring portion 21 a and the side not in contact with the first leaf spring portion side bent portion 51 a (the first tip portion 21 a 2 of the first leaf spring portion 21 a). Are arranged in a positional relationship in contact with the lower surface of the first flat plate portion 41a and sandwiched in the z direction by the first protective portion 31a and the first flat plate portion 41a.
That is, the first tip portion 21a2 of the first plate spring portion 21a is located below the first flat plate portion 41a in the z direction, and the first protection portion is located below the first tip portion 21a2 of the first plate spring portion 21a in the z direction. 31a is located.

When viewed from the lower side in the z direction (vehicle mounting side), the first leaf spring portion 21a and the first protection portion 31a partially overlap the first tip portion 21a2. The height in the z direction from the first flat plate portion 41a of the overlapping portion in the first protection portion 31a is the height in the z direction from the first flat plate portion 41a in the overlapping portion of the first leaf spring portion 21a. Higher than that (in the lower position in the z direction).
In other words, the area protected by the first protection part 31a in the first leaf spring part 21a, such as the first tip part 21a2, is provided on the side where the metal base 8 is present with respect to the first protection part 31a.

The first tip portion 21a2 of the first leaf spring portion 21a is in contact with the first flat plate portion 41a, but is not fixed by bonding or the like, and therefore moves in the x direction or the like depending on the pressing state of the first protruding region 21a1. Can do.
Since the first tip portion 21a2 can move in the x direction or the like, the first leaf spring portion 21a can be brought into contact with the roof of the vehicle having various inclination angles.
In addition, when viewed from below in the z direction, the first leaf spring portion 21a and the first protection portion 31a overlap with a part of the first tip portion 21a2 and the like, and the first tip portion 21a2 of the first leaf spring portion 21a. As long as the first protection part 31a is formed below the z direction, the first tip part 21a2 may not be in contact with the first flat plate part 41a.

  Since the 1st protection part 31a protects the 1st leaf spring part 21a, it becomes possible to prevent breakage of the 1st leaf spring part 21a compared with the form which does not provide the 1st protection part 31a.

The region protected by the first protection part 31a in the first leaf spring part 21a is provided on the side where the metal base 8 is present than the first protection part 31a. In other words, the 1st protection part 31a is provided in the side (z direction lower side) with the roof of vehicles rather than the field protected by the 1st protection part 31a in the 1st leaf spring part 21a.
For this reason, the 1st protection part 31a functions also as a cushion, and can protect the 1st leaf spring part 21a.

The first distal end portion 21a2 of the first leaf spring portion 21a is partially overlapped with the first protection portion 31a when viewed from below in the z direction, and therefore, the vehicle-mounted antenna device 1 from below in the z direction than the first protection portion 31a. It is possible to prevent other objects (operator's hands, tools, etc.) from coming into contact with the first tip portion 21a2 of the first leaf spring portion 21a and damaging the first leaf spring portion 21a.
Further, even when a force is applied such that the first tip portion 21a2 of the first leaf spring portion 21a is deformed downward in the z direction, the deformation is suppressed by the first protection portion 31a, so the first leaf spring portion 21a. Can be prevented.

1st vehicle contact part 11a (1st leaf | plate spring part 21a, the 1st protection part 31a, the 1st flat plate-like part 41a, the 1st leaf | plate spring part side bending part 51a, and the 1st protection part side bending part 52a in 1st Embodiment. ) Is integrally formed, and is formed, for example, by bending one rectangular conductor plate.
For example, one end of one conductor plate shown in FIG. 5 is bent to form the first leaf spring portion side bent portion 51a and the first leaf spring portion 21a. Further, the other end portion (the end portion opposite to the first leaf spring portion 21a) of the one conductor plate is bent to form the first protection portion side bent portion 52a and the first protection portion 31a.

  The 1st vehicle contact part 11a in 1st Embodiment is comprised from the rectangular conductor, and is the 1st area | region used as the 1st flat plate-shaped part 41a with a rectangular shape, and one edge part (x direction back of x direction back). A second region that extends in the vicinity of or is in contact with a region including the other end portion (the end portion in the x direction forward) of the first region and the other end of the first region. A third region that extends from the portion (the front end in the x direction) and overlaps at least a portion of the second region when viewed from below in the z direction, thereby forming the first protection portion 31a.

  The first protection part 31a may include a first protection part side bent part 52a, and the first protection part 31a and the first protection part side bent part 52a may be an example of a protection part.

  Thereby, the 1st vehicle contact part 11a can be easily formed by bending one rectangular-shaped board.

In addition, by bending a plurality of rectangular plates arranged in the y direction via connecting portions 61 provided at the end in the y direction of the first flat plate portion 41a, the plurality of first leaf spring portions 21a and the first The 1st protection part 31a which protects the 1 leaf | plate spring part 21a can be formed easily. When the first leaf spring portions 21a and the like are formed in this way, a plurality of first leaf spring portions 21a and the like are formed by other methods such as preparing a plurality of first vehicle contact portions 11a formed by a mold and connecting them together. The productivity can be improved as compared with the case of doing so.
In the first embodiment, one rectangular plate provided with slits 62 extending in the x direction from the end portion in the x direction (two elongated rectangular plates connected via the connecting portion 61) is used. An example in which two first leaf spring portions 21a and the like are formed by bending is shown.

(Second Embodiment)
Next, a second embodiment will be described.
In 1st Embodiment, the 1st protection part 31a in the 1st vehicle contact part 11a is the other edge part of the x direction of the 1st flat plate-shaped part 41a, Comprising: It sees from the front-end | tip of the said x direction seeing from ay direction. The case where it extended in the x direction via the U-shaped 1st protection part side bending part 52a was demonstrated. In 2nd Embodiment, the 2nd protection part 31b in the 2nd vehicle contact part 11b is substantially U shape seeing from the x direction from the both ends of the y direction in the other edge part of the x direction of the 2nd flat plate-shaped part 41b. The case where it extends in the y direction and the direction which mutually approaches through the 2nd protection part side bending part 52b is demonstrated.

The end of the second leaf spring portion 21b in the x direction and the side not in contact with the second leaf spring portion side bent portion 51b (the second tip portion 21b2 of the second leaf spring portion 21b) is the second flat plate-like portion. It is in contact with the lower surface of 41b and arranged in a positional relationship sandwiched in the z-direction by the second protective portion 31b and the second flat plate portion 41b.
That is, the second tip portion 21b2 of the second leaf spring portion 21b is located below the second flat plate portion 41b in the z direction, and the second protection portion is located below the second tip portion 21b2 of the second leaf spring portion 21b in the z direction. 31b is located.

  The 2nd vehicle contact part 11b contacts the metal base 8 and a vehicle, and is comprised with a conductor. For example, as shown in FIG. 6, the second vehicle contact portion 11b includes a second leaf spring portion 21b, a second protection portion 31b that protects the second leaf spring portion 21b, and a second flat plate portion 41b. The second vehicle contact portion 11b is an example of a vehicle contact portion, the second flat plate portion 41b is an example of a flat plate portion, the second leaf spring portion 21b is an example of a plate spring portion, and a second protection. The part 31b is an example of a protection part.

As viewed from below in the z direction, the second leaf spring portion 21b and the second protection portion 31b partially overlap the second tip portion 21b2. The height in the z direction from the second flat plate portion 41b of the overlapping portion in the second protection portion 31b is the height in the z direction from the second flat plate portion 41b in the overlapping portion of the second leaf spring portion 21b. Higher than that (in the lower position in the z direction).
In other words, the area protected by the second protection part 31b in the second leaf spring part 21b, such as the second tip part 21b2, is provided on the side where the metal base 8 is present with respect to the second protection part 31b.

The second tip portion 21b2 of the second leaf spring portion 21b is in contact with the second flat plate portion 41b, but is not fixed by adhesion or the like, and therefore moves in the x direction or the like depending on the pressing state of the second projecting region 21b1. Can do.
Since the second tip portion 21b2 can move in the x direction or the like, the second leaf spring portion 21b can be brought into contact with the roof of the vehicle having various inclination angles.
Further, when viewed from below in the z direction, the second leaf spring portion 21b and the second protection portion 31b overlap with a part of the second tip portion 21b2, etc., and the second tip portion 21b2 of the second leaf spring portion 21b. As long as it is formed so that the second protection part 31b is positioned below the z direction, the second tip part 21b2 may not be in contact with the second flat plate part 41b.

Second vehicle contact portion 11b (second leaf spring portion 21b, second protection portion 31b, second flat plate portion 41b, second leaf spring portion side bending portion 51b, and second protection portion side bending portion 52b in the second embodiment. ) Are integrally formed, for example, formed by bending a T-shaped conductor plate.
For example, in the T-shaped conductor plate shown in FIG. 7, the end of the vertical line portion (the x-direction portion in FIG. 7) forming the T-shape is bent, and the second leaf spring portion side bent portion 51b and the second plate A spring portion 21b is formed. Further, the second protection portion side bent portion 52b and the second protection portion 31b are bent by bending the end portions (end portions other than the second leaf spring portion 21b) of the horizontal line portion (y direction portion in FIG. 7) forming the T-shape. And are formed.

  The 2nd vehicle contact part 11b in 2nd Embodiment is comprised from the conductor formed in the T-shape, and is the rectangular 1st area | region used as the 2nd flat plate-shaped part 41b, and one edge part of the 1st area | region ( Forms a T-shape with a second region that extends from the rear end in the x direction) and is adjacent to or in contact with the region including the other end of the first region (the front end in the x direction). The end of the horizontal line portion (end on the T-shaped side) overlaps at least a part of the second region when viewed from below in the z direction, thereby forming the second protection portion 31b, and the vertical line portion forming the T-shape It has the 3rd field connected with the other edge part (edge part of the x direction front) of the 1st field in the boundary field of the horizontal line part (the other edge part of the T shape).

  The second protection part 31b may include the second protection part side bent part 52b, and the second protection part 31b and the second protection part side bent part 52b may be examples of the protection part.

  Since the 2nd protection part 31b protects the 2nd leaf | plate spring part 21b, compared with the form which does not provide the 2nd protection part 31b, it becomes possible to prevent the failure | damage of the 2nd leaf | plate spring part 21b.

The region protected by the second protection portion 31b in the second leaf spring portion 21b is provided on the side where the metal base 8 is present than the second protection portion 31b. In other words, the second protection part 31b is provided on the side where the roof of the vehicle is located (downward in the z direction) from the region protected by the second protection part 31b in the second leaf spring part 21b.
For this reason, the 2nd protection part 31b functions also as a cushion, and can protect the 2nd leaf spring part 21b.

Since the second tip portion 21b2 of the second leaf spring portion 21b is partially overlapped with the second protection portion 31b when viewed from below in the z direction, the vehicle-mounted antenna device 1 from below in the z direction than the second protection portion 31b. It is possible to prevent other objects (operator's hands, tools, etc.) from coming into contact with the second tip 21b2 of the second leaf spring portion 21b and damaging the second leaf spring portion 21b.
Further, even when a force is applied such that the second tip 21b2 of the second leaf spring portion 21b is deformed downward in the z direction, the deformation is suppressed by the second protection portion 31b, so the second leaf spring portion 21b. Can be prevented.

Furthermore, in 2nd Embodiment, the edge part of the y direction in the 2nd front-end | tip part 21b2 of the 2nd leaf | plate spring part 21b is covered with the 2nd protection part 31b or the 2nd protection part side bending part 52b. For this reason, it can prevent that the force from ay direction is added to the 2nd front-end | tip part 21b2 of the 2nd leaf | plate spring part 21b.
Further, even when a force in the y direction is applied to the second projecting region 21b1 of the second leaf spring portion 21b and the second tip portion 21b2 of the second leaf spring portion 21b is deformed in the y direction, the second protection portion. Since the said deformation | transformation is suppressed by 31b and the 2nd protection part side bending part 52b, damage to the 2nd leaf | plate spring part 21b can be prevented.

In the second embodiment, the example in which the entire shape of the second vehicle contact portion 11b is formed in a T shape has been described.
However, the overall shape of the second vehicle contact portion 11b may not be T-shaped, and a part of the second vehicle contact portion 11b (third region), that is, one of the conductors constituting the second vehicle contact portion 11b. The end may be formed in a T shape.

(Third embodiment)
Next, a third embodiment will be described.
The first vehicle contact portion 11a in the first embodiment and the second vehicle contact portion 11b in the second embodiment are configured integrally by bending one conductor plate. That is, the 1st vehicle contact part 11a which concerns on 1st Embodiment, and the 2nd vehicle contact part 11b which concerns on 2nd Embodiment are comprised by one component. The 3rd vehicle contact part 11c in 3rd Embodiment is comprised with several components. For example, as shown in FIG. 8, the third vehicle contact portion 11c in the third embodiment includes a first lower part (first part) 11c1 including a third leaf spring part 21c and a third flat plate part 41c. The first upper part (second part) 11c2 including the third protection part 31c. The third vehicle contact portion 11c is an example of a vehicle contact portion, the third flat plate portion 41c is an example of a flat plate portion, the third plate spring portion 21c is an example of a plate spring portion, and a third protection The part 31c is an example of a protection part.

The first lower part 11c1 is made of a metal plate and includes a third leaf spring portion 21c, a third flat plate portion 41c, and a third leaf spring portion side bent portion 51c.
The third leaf spring portion 21c in the third embodiment is one end portion of the third flat plate portion 41c in the x direction and is substantially U-shaped as viewed from the y direction from the tip end in the x direction. It extends through the spring part side bent part 51c and is arranged below the third flat plate part 41c in the z direction. Moreover, the 3rd leaf | plate spring part 21c has the area | region (3rd protrusion area | region 21c1) which protrudes below in az direction, and the lower surface in the said 3rd protrusion area | region 21c1 contacts a vehicle.

  The third plate spring portion 21c is at least partially opposed to the lower surface of the third flat plate portion 41c and extends downward from the lower surface of the third flat plate portion 41c in the z direction, and both ends in the x direction are connected to the third flat plate portion 41c. They have a rectangular shape when viewed from the z direction.

  Specifically, one end in the x direction of the third leaf spring portion 21c is in contact with the third flat plate portion 41c via the third leaf spring portion side bent portion 51c.

  The end in the x direction of the third leaf spring portion 21c and the side not in contact with the third leaf spring portion side bent portion 51c (the third tip portion 21c2 of the third leaf spring portion 21c) is the third flat plate-like portion. 41c is in contact with the region including the other end portion in the x direction in the 41c (first inserted portion 41c1).

In order to facilitate the insertion of the first inserted portion 41c1 into the first upper part 11c2, other portions of the third flat plate portion 41c (the first inserted portion 41c1 and the third leaf spring portion side of the third flat plate portion 41c). It is desirable that the step 41c2 is provided so that the first inserted portion 41c1 is located below the z direction with respect to the region between the bent portions 51c.
The first insertion portion 41c1 is provided with a first fitting hole 41c3.

The first lower component 11c1 (the third leaf spring portion 21c, the third flat plate portion 41c, and the third leaf spring portion side bent portion 51c) in the third embodiment is configured integrally, for example, one rectangular shape. A form formed by bending a conductor plate is conceivable.
In this case, one end portion of the one conductor plate is bent to form a third leaf spring portion side bent portion 51c and a third leaf spring portion 21c, and the other end portion (first portion) of the one conductor plate is formed. A first insertion portion 41c1 including a first fitting hole 41c3 is formed on the end opposite to the three leaf spring portion 21c.

  The first lower part 11c1 of the third vehicle contact portion 11c in the third embodiment includes a first region that is rectangular and serves as a third flat plate portion 41c, and one end of the first region (the end on the rear side in the x direction). ), The second region to be the third leaf spring portion 21c in proximity to or in contact with the region including the other end portion (the front end portion in the x direction) of the first region, and the other end portion (x A third region (first insertion portion 41c1) provided with a first fitting hole 41c3.

  The first upper part 11c2 is made of a metal plate that is thicker than the first lower part 11c1, and includes a third protection part 31c and a first base part 53c.

The third protection part 31c is one end part in the x direction of the first base part 53c and from both ends in the y direction via a third protection part side bent part 52c that is substantially U-shaped when viewed from the x direction. It extends in the y direction and the direction approaching each other, and is disposed below the first base portion 53c in the z direction.
One end of the third protection part 31c is in contact with the first base part 53c via the third protection part side bent part 52c, and has a rectangular shape when viewed from the z direction.

The first base portion 53c has a substantially rectangular shape extending in the x direction, and a substantially cylindrical first protrusion 53c1 extending downward in the z direction in a region including the other end portion in the x direction of the first base portion 53c. Is provided.
The outer diameter of the first protrusion 53c1 of the first base portion 53c is smaller than the inner diameter of the first fitting hole 41c3 of the third flat plate portion 41c.

The first upper component 11c2 (the third protection portion 31c and the first base portion 53c) in the third embodiment is configured integrally, and is formed by, for example, bending a T-shaped conductor plate.
In this case, in the T-shaped conductor plate, the first base portion 53c including the first protrusion 53c1 is formed at the end portion of the vertical line portion forming the T shape, and the end portion of the horizontal line portion forming the T shape is formed. The third protective part side bent part 52c and the third protective part 31c are formed by bending.

  The first upper part 11c2 of the third vehicle contact portion 11c in the third embodiment has at least one of the second regions when the end of the horizontal line forming the T-shape (end on the T-shape) is viewed from below in the z direction. And the fourth region that becomes the third protection portion 31c by overlapping with the region of the portion, and the end portion on the side that does not contact the horizontal line portion in the vertical line portion that forms the T-shape (the front end portion in the x direction, the T-shaped The region including the other end) has a fifth region provided with a first protrusion 53c1 that is fitted into the first fitting hole 41c3.

The first lower part 11c1 and the first upper part 11c2 are attached by caulking via the first fitting hole 41c3 and the first protrusion 53c1.
Specifically, the third flat plate portion 41c of the first lower component 11c1 is arranged such that the third tip portion 21c2 of the third leaf spring portion 21c is located between the third protection portion 31c and the first base portion 53c. The first inserted portion 41c1 is inserted between the third protection portion 31c and the first base portion 53c in the first upper part 11c2. Further, the first protrusion 53c1 is inserted into the first fitting hole 41c3. For example, as shown in FIG. 9, the first lower part 11c1 and the first upper part 11c2 are connected by caulking the first protrusion 53c1.

  The region between the first inserted portion 41c1 and the third leaf spring portion side bent portion 51c in the third flat plate portion 41c and the portion in contact with the lower surface of the metal base 8 in the first base portion 53c are bonded or adhered. Attached to the metal base 8.

The end in the x direction of the third leaf spring portion 21c and the side not in contact with the third leaf spring portion side bent portion 51c (the third tip portion 21c2 of the third leaf spring portion 21c) is the third flat plate-like portion. It is in contact with the lower surface of 41c and arranged in a positional relationship sandwiched in the z-direction by the third protective portion 31c and the third flat plate portion 41c.
That is, the third tip portion 21c2 of the third leaf spring portion 21c is located below the third flat plate portion 41c in the z direction, and the third protection portion is located below the third tip portion 21c2 of the third leaf spring portion 21c in the z direction. 31c is located.

When viewed from below in the z direction, the third leaf spring portion 21c and the third protection portion 31c partially overlap the third tip portion 21c2. The height in the z direction from the third flat plate portion 41c of the overlapping portion in the third protection portion 31c is the height in the z direction from the third flat plate portion 41c in the overlapping portion of the third leaf spring portion 21c. Higher than that (in the lower position in the z direction).
In other words, the region protected by the third protection part 31c in the third leaf spring part 21c, such as the third tip part 21c2, is provided on the side where the metal base 8 is present with respect to the third protection part 31c.

The third plate spring portion 21c needs to have a predetermined spring constant because of the shape of the vehicle to which the vehicle-mounted antenna device 1 is attached, and it is difficult to set the thickness freely.
In the third embodiment, the first upper part 11c2 including the third protection part 31c is configured separately from the first lower part 11c1 including the third leaf spring part 21c. For this reason, the thickness of the 3rd protection part 31c can be set irrespective of the thickness of the 3rd leaf | plate spring part 21c. As a result, the leaf spring portions (first leaf spring portion 21a, second leaf spring portion 21b) and the protection portions (first protection portion 31a, second protection portion 31b) are more in comparison with a configuration in which the leaf spring portions are integrated. A conductor plate (third vehicle contact portion 11c) in which the third leaf spring portion 21c is not easily damaged can be realized.

The third tip portion 21c2 of the third leaf spring portion 21c is in contact with the third flat plate portion 41c, but is not fixed by adhesion or the like, and therefore moves in the x direction or the like depending on the pressing state of the third protruding region 21c1. Can do.
Since the third tip portion 21c2 can move in the x direction or the like, the third leaf spring portion 21c can be brought into contact with the roof of the vehicle having various inclination angles.
In addition, when viewed from below in the z direction, the third leaf spring portion 21c and the third protection portion 31c overlap with a part of the third tip portion 31c2 and the like, and the third tip portion 21c2 of the third leaf spring portion 21c. The third tip portion 21c2 may not be in contact with the third flat plate portion 41c as long as the third protection portion 31c is formed below the z direction.

Further, the vehicle contact portion (the first vehicle contact portion 11 a to the third vehicle contact portion 11 c) may be attached to the plane portion of the lower surface of the metal base 8, but the z direction upper side of the lower surface of the metal base 8. The vehicle contact part (the 1st vehicle contact part 11a-the 3rd vehicle contact part 11c) may be attached to the recessed part (dent area | region 81).
Moreover, the form by which the non-deformation wall 83 is provided in the circumference | surroundings of the area | region where the vehicle contact part (1st vehicle contact part 11a-3rd vehicle contact part 11c) in the lower surface of the metal base 8 is attached may be sufficient. In other words, the vehicle contact portion (first vehicle contact portion 11a to third vehicle contact portion 11c) is a breakage prevention portion that prevents breakage of the leaf spring portion (first leaf spring portion 21a to third leaf spring portion 21c). Also have.

  An example in which the third vehicle contact portion 11c in the third embodiment is fitted into the recessed area 81 will be described with reference to FIGS. 10 and 11. The first vehicle contact portion 11a in the first embodiment or the second vehicle contact portion 11b in the second embodiment may be fitted in the recessed area 81.

  On the lower surface of the metal base 8, a recessed area 81 into which the third vehicle contact portion 11c is fitted is provided. A non-deformable wall 83 having a substantially rectangular parallelepiped shape is provided in the vicinity of the side portion of the third leaf spring portion 21c (region adjacent to the third leaf spring portion 21c in the y direction) around the recessed region 81.

The non-deformable wall 83 is made of a material that is not easily deformed, such as metal, and may be formed integrally with the metal base 8 or may be formed separately.
When the metal base 8 and the non-deformable wall 83 are configured separately, the non-deformable wall 83 is attached to the metal base 8 by adhesion or adhesion.

  The sum of the height in the z direction of the recessed region 81 and the height in the z direction of the non-deformable wall 83 is the lowest z-direction lowermost portion of the third protruding region 21c1 of the third leaf spring portion 21c and the third flat plate portion 41c. The dimensions of the third vehicle contact portion 11c, the recessed region 81, and the non-deformable wall 83 are determined so as to be shorter than the distance in the z direction.

Thereby, exact position alignment with the metal base 8 of the 3rd vehicle contact part 11c can be performed easily. This also reduces the portion of the third vehicle contact portion 11c (third leaf spring portion 21c) that protrudes downward from the lower surface of the metal base 8 in the z direction. , Tools, etc.) can be prevented from coming into contact with the third leaf spring portion 21c and damaging the third leaf spring portion 21c.
Even when a force in the y direction is applied to the third projecting region 21c1 of the third leaf spring portion 21c and the third leaf spring portion 21c is deformed in the y direction, the depression region 81 and the non-deformable wall 83 Deformation is suppressed. As a result, it is possible to prevent the third leaf spring portion 21c from being damaged.

10 and 11, the non-deformable wall 83 that is not easily deformed is provided on the lower surface of the metal base 8 and in the vicinity of the third vehicle contact portion 11c (third leaf spring portion 21c). However, the embodiment is not limited to this. For example, as shown in FIG. 12, the deformation wall 85 that is elastically deformed in accordance with the force applied in the z direction is the lower surface of the metal base 8 and in the vicinity of the third vehicle contact portion 11c (third leaf spring portion 21c). The form provided in may be sufficient.
In FIG. 12, the deformed wall 85 provided in the vicinity of the third vehicle contact portion 11c is adjacent to the side portion of the third leaf spring portion 21c and has a U-shaped bottom as viewed from the z direction. The example comprised by a shape is shown.

  In the example of FIG. 12, the sum of the height in the z direction of the recessed area 81 and the height in the z direction of the deformation wall 85 is equal to the lowermost part in the z direction of the third projecting area 21c1 of the third leaf spring portion 21c and the third height. The dimensions of the third vehicle contact portion 11c, the recessed region 81, and the deformation wall 85 are determined so as to be longer than the distance in the z direction from the flat plate portion 41c. Further, when the vehicle-mounted antenna device 1 is attached to the vehicle, the third vehicle contact portion 11c and the recessed region 81 are shrunk in the z direction by pressing so that the third projecting region 21c1 of the third leaf spring portion 21c contacts the vehicle. And the dimension of the deformation wall 85 is determined.

  Thereby, the part which protrudes in the z direction downward from the lower surface of the deformation wall 85 in the 3rd vehicle contact part 11c (3rd leaf | plate spring part 21c) can be eliminated. As a result, it is possible to prevent an object other than the vehicle-mounted antenna device 1 (operator's hand, tool, etc.) from coming into contact with the third leaf spring portion 21c and damaging the third leaf spring portion 21c.

As shown in FIG. 13 and FIG. 14, the protruding region (first protruding region 21 a 1 to third protruding region 21 c 1) of the leaf spring portion (first leaf spring portion 21 a to third leaf spring portion 21 c) Side surfaces 211 formed by bending both ends in the width direction by processing may be provided.
Thereby, the leaf spring portion (the first leaf spring portion 21a to the third leaf spring portion 21c) is less likely to be deformed with respect to the force applied from the width direction. As a result, it is possible to prevent the leaf spring portion (the first leaf spring portion 21a to the third leaf spring portion 21c) from being damaged.

FIGS. 13 and 14 show an example in which the side surface 211 is provided in the first projecting region 21a1 of the first leaf spring portion 21a in the first embodiment, but the embodiment is not limited to this. For example, the side surface 211 may be provided in the second projecting region 21b1 of the second leaf spring part 21b in the second embodiment or the third projecting region 21c1 of the third leaf spring part 21c in the third embodiment.
In FIG. 13 and FIG. 14, portions corresponding to the first protection part 31a and the first protection part side bent part 52a in the first vehicle contact part 11a are not shown.

In the third embodiment, the example in which the overall shape of the first upper part 11c2 of the third vehicle contact portion 11c is formed in a T shape has been described.
However, the overall shape of the first upper part 11c2 does not have to be T-shaped, and a part (fourth region) of the first upper part 11c2, that is, one end of the conductor constituting the first upper part 11c2 is It may be formed in a T shape.

(Fourth embodiment)
Next, a fourth embodiment will be described.
In the leaf spring portions (first leaf spring portion 21a to third leaf spring portion 21c) in the first embodiment to the third embodiment, tip portions (first tip portion 21a2 to third tip portion 21c2) are protruding regions. The case where only one extending in the x direction from the first projecting region 21a1 to the third projecting region 21c1 has been described. In the fourth leaf spring portion 21d in the fourth embodiment, a fourth tip portion 21d2 extends in the y direction from the fourth projecting region 21d1 in addition to the fourth tip region 21d2 extending in the x direction (leg tip portion). 214).

  Specifically, as shown in FIG. 15, the fourth vehicle contact portion 11d in the fourth embodiment is a second lower component (first component) including a fourth leaf spring portion 21d and a fourth flat plate portion 41d. 11d1 and a second upper part (second part) 11d2 including the fourth protection part 31d. The fourth vehicle contact portion 11d is an example of a vehicle contact portion, the fourth flat plate portion 41d is an example of a flat plate portion, the fourth leaf spring portion 21d is an example of a leaf spring portion, and a fourth protection. The part 31d is an example of a protection part.

The second lower part 11d1 is made of a metal plate and includes a fourth leaf spring portion 21d, a fourth flat plate portion 41d, and a fourth leaf spring portion side bent portion 51d.
The fourth leaf spring portion 21d in the fourth embodiment is one end portion in the x direction of the fourth flat plate-like portion 41d and is a substantially U-shaped fourth plate as viewed from the y direction from the tip end in the x direction. It extends through the spring-side bent portion 51d and is disposed below the fourth flat plate portion 41d in the z direction. The fourth leaf spring portion 21d has a region (fourth projecting region 21d1) projecting downward in the z direction, and the lower surface of the fourth projecting region 21d1 is in contact with the vehicle.

  The fourth plate spring portion 21d is at least partially opposed to the lower surface of the fourth flat plate portion 41d and extends downward from the lower surface of the fourth flat plate portion 41d in the z direction, and both ends in the x direction are connected to the fourth flat plate portion 41d. They have a rectangular shape when viewed from the z direction.

  Specifically, one end in the x direction of the fourth leaf spring portion 21d is in contact with the fourth flat plate portion 41d via the fourth leaf spring portion side bent portion 51d.

  The end of the fourth leaf spring portion 21d in the x direction and the side not in contact with the fourth leaf spring portion side bent portion 51d (the fourth tip portion 21d2 of the fourth leaf spring portion 21d) is the fourth flat plate-like portion. 41d is in contact with the region including the other end in the x direction (second inserted portion 41d1).

  Leg portions 213 extending in the y direction and in contact with the second base portion 53d at the leg tip portion 214 are provided at both ends in the y direction in the fourth projecting region 21d1 of the fourth leaf spring portion 21d.

The second insertion portion 41d1 is provided with a second fitting hole 41d3.
The fourth leaf spring portion 21d (including the leg portion 213), the fourth flat plate-like portion 41d, and the fourth leaf spring portion-side bent portion 51d in the fourth embodiment are integrally configured, for example, one polygonal shape. A form formed by bending a (substantially cross-shaped) conductor plate is conceivable.
In this case, in the substantially cross-shaped conductor plate, the fourth leaf spring portion side bent portion is bent by bending one of the vertical line portions forming the cross, the other portion of the vertical line portion, and the horizontal line portion. 51d and the 4th leaf | plate spring part 21d are formed, and the 4th flat plate-like part 41d containing the 2nd fitting hole 41d3 is formed in the area | region containing the other remaining part of the vertical line part which forms a cross.

The second upper part 11d2 is made of a metal plate that is thicker than the second lower part 11d1, and includes a fourth protection part 31d, a second base part 53d, and a leg protection part 311.
The fourth protective portion 31d is one end portion in the x direction of the second base portion 53d and from both ends in the y direction via a substantially U-shaped fourth protective portion side bent portion 52d as viewed from the x direction. It extends in the y direction and the direction approaching each other, and is disposed below the second base portion 53d in the z direction.
The fourth protection portion 31d has one end that is in contact with the second base portion 53d via the fourth protection portion-side bent portion 52d and has a rectangular shape when viewed from the z direction.
The second base portion 53d has a substantially T shape when viewed from the z direction, and a substantially cylinder extending downward in the z direction in a region including the end of the vertical line portion forming the T shape in the second base portion 53d. A second protrusion 53d1 having a shape is provided.
The outer diameter of the second protrusion 53d1 of the second base portion 53d is smaller than the inner diameter of the second fitting hole 41d3 of the fourth flat plate portion 41d.

The leg protection portion 311 is an end portion of a horizontal line portion forming a T-shape in the second base portion 53d, and is substantially U-shaped when viewed from the y direction from both ends of the end portion in the x direction. It extends in the x direction via the bent portion 522 and in a direction approaching each other.
The fourth protection part 31d, the second base part 53d, and the leg protection part 311 in the fourth embodiment are configured integrally, for example, each of a polygonal shape (substantially T-shaped and a line that forms a substantially T-character). The shape is formed by bending a conductor plate having a shape in which a protruding piece is provided at the end.
In this case, in the substantially T-shaped conductor plate, the protruding piece provided at the end of the vertical line portion that forms the T-shape is bent so that the fourth protection portion side bent portion 52d and the fourth protection portion 31d are provided. The protruding piece provided at the end of the horizontal line portion that is formed and formed into a T-shape is bent to form the leg protection part side bent part 522 and the leg protection part 311.

The second lower part 11d1 and the second upper part 11d2 are attached by caulking via the second fitting hole 41d3 and the second protrusion 53d1.
Specifically, the leg tip portion 214 of the leg portion 213 is inserted between the leg protection portion 311 and the second base portion 53d. Also, the second covered portion of the fourth flat plate portion 41d in the second lower part 11d1 is such that the fourth tip portion 21d2 of the fourth leaf spring portion 21d is located between the fourth protection portion 31d and the second base portion 53d. The insertion part 41d1 is inserted between the fourth protection part 31d and the second base part 53d in the second upper part 11d2. Further, the second protrusion 53d1 is inserted into the second fitting hole 41d3. Caulking is performed by crushing the second protrusion 53d1, and the second lower part 11d1 and the second upper part 11d2 are connected, for example, as shown in FIG.

  The second base portion 53d is attached to the metal base 8 by adhesion or adhesion.

  By providing the leg portion 213, even if a force in the y direction is applied to the fourth projecting region 21d1 and the like of the fourth leaf spring portion 21d, the fourth leaf spring portion 21d is not easily deformed in the y direction. Damage to the spring portion 21d can be prevented.

The end of the fourth leaf spring portion 21d in the x direction and the side not in contact with the fourth leaf spring portion side bent portion 51d (the fourth tip portion 21d2 of the fourth leaf spring portion 21d) is the fourth flat plate-like portion. It is in contact with the lower surface of 41d and is arranged in a positional relationship sandwiched in the z direction by the fourth protection portion 31d and the fourth flat plate portion 41d.
That is, the fourth tip portion 21d2 of the fourth leaf spring portion 21d is located below the fourth flat plate portion 41d in the z direction, and the fourth protection portion is located below the fourth tip portion 21d2 of the fourth leaf spring portion 21d in the z direction. 31d is located.

When viewed from below in the z direction, the fourth leaf spring portion 21d and the fourth protection portion 31d partially overlap the fourth tip portion 21d2. The height in the z direction from the fourth flat plate portion 41d of the overlapping portion in the fourth protective portion 31d is the height in the z direction from the fourth flat plate portion 41d in the overlapping portion of the fourth leaf spring portion 21d. Higher than that (in the lower position in the z direction).
In other words, the region protected by the fourth protection part 31d in the fourth leaf spring part 21d, such as the fourth tip part 21d2, is provided on the side where the metal base 8 is present with respect to the fourth protection part 31d.

The fourth tip portion 21d2 of the fourth leaf spring portion 21d is in contact with the fourth flat plate portion 41d, but is not fixed by adhesion or the like, and therefore moves in the x direction or the like depending on the pressing state of the fourth projecting region 21d1. Can do.
Since the fourth tip portion 21d2 can move in the x direction or the like, the fourth leaf spring portion 21d can be brought into contact with the roof of the vehicle having various inclination angles.
In addition, when viewed from below in the z direction, the fourth leaf spring portion 21d and the fourth protection portion 31d overlap at a part of the fourth tip portion 31d2, and the fourth tip portion 21d2 of the fourth leaf spring portion 21d. As long as the fourth protective portion 31d is formed below the z direction, the fourth tip portion 21d2 may not be in contact with the fourth flat plate portion 41d.

An end portion in the y direction (the leg tip portion 214 of the leg portion 213) of the fourth leaf spring portion 21d is in contact with the lower surface of the second base portion 53d, and in the z direction by the leg protection portion 311 and the second base portion 53d. Arranged in a sandwiched positional relationship.
That is, the leg tip portion 214 of the fourth leaf spring portion 21d is located below the second base portion 53d in the z direction, and the leg protection portion 311 is located below the leg tip portion 214 of the fourth leaf spring portion 21d in the z direction. .

  As viewed from below in the z direction, the fourth leaf spring portion 21d and the leg protection portion 311 partially overlap the leg tip portion 214 and the like. The height in the z direction from the second base portion 53d of the overlapping portion in the leg protection portion 311 is higher than the height in the z direction from the second base portion 53d in the overlapping portion of the fourth leaf spring portion 21d. (In the lower position in the z direction).

The leg tip portion 214 of the leg portion 213 is in contact with the second base portion 53d, but is not fixed by adhesion or the like, and can move in the y direction or the like depending on the pressing state of the fourth projecting region 21d1.
Since the leg tip portion 214 can move in the y direction or the like, the fourth leaf spring portion 21d can be brought into contact with the roof of the vehicle having various inclination angles.
Further, the leg tip portion 214 of the leg portion 213 is formed so as to have a positional relationship closer to the second base portion 53d than the fourth projecting region 21d1 (a positional relationship close to the second base portion 53d). For example, the form which the leg front-end | tip part 214 does not contact | connect the 2nd base part 53d may be sufficient.

  In the fourth embodiment, the example in which the fourth vehicle contact portion 11d is attached to the substantially cross-shaped recessed region 81 that matches the shape of the upper surface side of the fourth vehicle contact portion 11d is shown, but the embodiment is limited to this. It is not something. For example, the fourth vehicle contact portion 11 d may be attached to the planar portion of the lower surface of the metal base 8.

(Fifth embodiment)
Next, a fifth embodiment will be described.
In the first embodiment to the fourth embodiment, the leaf spring portions (first leaf spring portion 21a to fourth leaf spring portion 21d) in the vehicle contact portion (first vehicle contact portion 11a to fourth vehicle contact portion 11d) are vehicles. The case where it contacts with was demonstrated. In 5th Embodiment, the 5th vehicle contact part 11e is comprised with conductive rubber, and the said conductive rubber contacts the metal base 8 and a vehicle.
As shown in FIG. 17, since the fifth vehicle contact portion 11e is elastically deformable and includes a conductive member, the electrical connection between the metal base 8 and the vehicle can be maintained.

  Note that portions other than the configurations of the metal base 8 and the vehicle contact portion (the first vehicle contact portion 11a to the fifth vehicle contact portion 11e) in the in-vehicle antenna device 1 may be in other forms.

  Moreover, although 1st Embodiment-5th Embodiment shows the example by which a vehicle contact part (1st vehicle contact part 11a-5th vehicle contact part 11e) is provided in the x direction back in the lower surface of the metal base 8, x The form provided in the direction center part and the x direction front may be sufficient.

  Moreover, in 1st Embodiment-4th Embodiment, flat plate part (1st flat plate part 41a-4th flat plate part 41d) is a vehicle contact part (1st vehicle contact part) by the positional relationship extended in a x direction. The example in which 11a-5th vehicle contact part 11e) is attached to the lower surface of the metal base 8 was shown. However, the embodiment is not limited to this. For example, the vehicle contact portion may be attached to the metal base 8 in another positional relationship (for example, a positional relationship in which the flat plate-like portion extends in the y direction).

(Other embodiments)
In the embodiment described above, the in-vehicle antenna device 1 has been described as having a shark fin shape, but the embodiment is not limited to this. Each embodiment mentioned above is applicable also to a microantenna, for example.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Vehicle-mounted antenna apparatus 2a Exterior case 2b Interior case 3 Pad 4a 1st antenna element 4b 2nd antenna element 6a 1st board | substrate 6b 2nd board | substrate 6c Board holder 8 Metal base 8a Cable hole 9 Seal member 11a-11d 1st vehicle contact Part to fourth vehicle contact part 11c1, 11d1 first lower part, second lower part 11c2, 11d2 first upper part, second upper part 21a to 21d first leaf spring part to fourth leaf spring part 21a1 to 21d1 first Projection region to fourth projection region 21a2 to 21d2 First tip portion to fourth tip portion 211 Side surface 213 Leg portion 214 Leg tip portion 31a to 31d First protection portion to fourth protection portion 311 Leg protection portion 41a to 41d First flat plate Portion to fourth flat plate portion 41c1, 41d1 first inserted portion, second inserted portion 41c2 step 41c3, 41d3 first fitting hole 2nd fitting hole 51a-51d 1st leaf | plate spring part side bending part-4th leaf | plate spring part side bending part 52a-52d 1st protection part side bending part-4th protection part side bending part 522 Leg protection part side bending part 53c, 53d 1st base part, 2nd base part 53c1, 53d1 1st protrusion, 2nd protrusion 61 Connection part 62 Slit 81 Recessed area 83 Undeformed wall 85 Deformed wall

Claims (6)

A metal base attached to the vehicle;
An antenna case covering the metal base;
An antenna element provided above the metal base;
A vehicle contact portion that contacts the vehicle and is composed of a conductor;
The vehicle contact portion is
A plate-like portion electrically connected to the metal base;
A leaf spring portion extending from the flat plate portion and contacting the vehicle;
A protection portion for protecting the leaf spring portion between the leaf spring portion and the vehicle;
A vehicle-mounted antenna device having:   The in-vehicle antenna device according to claim 1, wherein an area of the leaf spring portion that is protected by the protection portion is provided closer to the metal base than the protection portion.   The on-vehicle antenna device according to claim 2, wherein at least a part of the region of the protection unit overlaps with the region to be protected when viewed from a side attached to the vehicle. The vehicle contact portion is composed of a rectangular conductor,
The conductor is
A first region having a rectangular shape and serving as the flat plate portion;
A second region extending from one end of the first region, in proximity to or in contact with other than the one end of the first region, and serving as the leaf spring portion;
The in-vehicle antenna device according to claim 3, further comprising: a third region that extends from the other end of the first region and overlaps at least a part of the second region to serve as the protection unit. The vehicle contact portion is composed of a conductor having one end formed in a T shape,
The conductor is
A first region having a rectangular shape and serving as the flat plate portion;
A second region extending from one end of the first region, in proximity to or in contact with other than the one end of the first region, and serving as the leaf spring portion;
The first end portion formed in the T-shape, in contact with the other end portion of the first region, and overlaps at least a part of the second region to form the protective portion. The in-vehicle antenna device according to claim 3, comprising three regions. The vehicle contact portion includes a first component composed of a rectangular conductor and a second component composed of a conductor having one end formed in a T-shape,
The rectangular conductor is
A first region that becomes the flat plate-like portion, a second region that extends from one end of the first region, is in proximity to or in contact with other than the one end of the first region, and serves as the leaf spring portion; A third region provided with a fitting hole in contact with the other end of the first region;
The conductor having one end formed in a T-shape is the one end formed in the T-shape and overlaps at least a part of the second region, so that the protection portion A fourth region and a fifth region provided with a protrusion fitted into the fitting hole,
The in-vehicle antenna device according to claim 1, wherein an outer diameter of the protrusion is smaller than an inner diameter of the fitting hole.

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