Roof-mounted antenna mounting structure

Abstract

The present application provides a roof-mounted antenna mounting structure which can be constructed with light weight and at low cost, and which can be mounted with small force at the time of fastening. The roof-mounted antenna mounting structure is composed of a first threaded portion (10), a second threaded portion (20), a footed washer (30), an open foot preventing portion (40), and a clamped portion (50). The footed washer (30) has a washer (31) which is smaller in diameter than a mounting hole (3) of a roof (2), and a foot portion (32) which extends from the washer (31) and is formed with a plurality of claw portions (33) which can abut against the roof (2). The foot portion (32) has elasticity which temporarily closes the foot portion (32) when the footed washer (30) is inserted into the mounting hole (3) of the roof (2) from the washer (31) side, and opens the foot portion (32) to a substantially original state after the insertion. The open foot preventing portion (40) is cut out from the foot portion (32) near between the plurality of claw portions (33), and has a horizontal portion (41) and a vertical portion (42) which prevent the foot portion (32) from opening to a prescribed level or more when the claw (33) abuts against the roof (2).

Description

Technical Field

[0001] This invention relates to a roof-mounted antenna mounting structure, and more particularly to a roof-mounted antenna mounting structure for an antenna, wherein the antenna is inserted into a mounting hole on the roof and fixed thereon. Background Technology

[0002] Conventional roof-mounted antennas include, for example, the roof-mounted antenna disclosed in Patent Document 1. This roof-mounted antenna is fixed to the roof by inserting a threaded boss protruding from the antenna base into a mounting hole located on the roof, and then tightening the threaded boss from the inside of the vehicle with a nut. With this structure, the nut sometimes falls off during installation, and tightening it from the inside of the vehicle compartment through the roof also presents problems with operability.

[0003] To eliminate this operational inconvenience, Patent Document 2, from the same applicant as this application, discloses a roof-mounted antenna mounting structure that is easy to install on a vehicle and reduces the burden on operators. This mounting structure uses foot pads. First, the mounting structure is inserted into a mounting hole in the roof from the outside of the vehicle body. During insertion, the feet of the foot pads are closed, allowing the mounting structure to pass through the mounting hole. Then, as bolts or the like are tightened from the inside of the vehicle body, the feet of the foot pads abut against the contact portion provided on the threaded boss and open, and the claws of the feet bite into the inside of the vehicle body on the roof. Thus, the mounting structure is fixed to the roof and electrically connected (grounded) to the roof.

[0004] In addition, a vehicle antenna is known to be installed by pressing a foot pad against the roof of a vehicle while it is pre-fixed to the boss with bolts (Patent Document 3). In this vehicle antenna, a guide plate formed by laterally bending the side of the foot pad with rounded corners is configured to grip the protrusion provided on the boss, and the foot pad is guided by the protrusion.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2001-036315

[0008] Patent Document 2: Japanese Patent Application Publication No. 2006-248486

[0009] Patent Document 3: Description of Chinese Patent Application Publication No. 106129583 Summary of the Invention

[0010] The problem that the invention aims to solve

[0011] In the case of the roof-mounted antenna mounting structure described in Patent Document 2, a thick plate-like material is used to construct the foot pad in order for the claws to reliably bite into the roof. Therefore, a very large force is required when tightening the bolts to allow the feet of the foot pad to abut against the abutment portion provided on the threaded boss. This places a heavy burden on the operators. Furthermore, the roof may sometimes deform due to the strong force used during tightening. In addition, the foot pad is made of a thick plate-like material, thus also having a certain degree of weight.

[0012] Furthermore, regarding the vehicle antenna described in Patent Document 3, the guide plate has a complex bending structure, and it requires precise bending to ensure reliable guidance by the protruding part, which incurs costs. Additionally, the guide plate is constructed by laterally bending the side of the foot with rounded corners; therefore, when tightening with bolts, if force is applied in the direction the foot opens, the guide plate, being bent with rounded corners, may also open. Moreover, when pressed and installed on the roof, the position of the foot pads relative to the protrusion is not fixed, resulting in no gap between the base and the claw, potentially making it impossible to clamp onto the roof.

[0013] In view of these practical realities, the present invention provides a roof-mounted antenna mounting structure that can be constructed in a lightweight and inexpensive manner, and can be installed with less force when fastened. In addition, it can be configured to be reliably and temporarily fixed to the roof.

[0014] Solution for solving the problem

[0015] To achieve the aforementioned objective of the present invention, the roof-mounted antenna mounting structure of the present invention comprises: a first threaded portion disposed on an antenna base located on the outside of the vehicle body, protruding towards the roof side and inserted into a mounting hole in the roof; a second threaded portion fastened to the first threaded portion; and a foot-mounted pad, composed of a conductive plate-like body, having a washer and feet, the washer having a through hole through which either the first or second threaded portion passes, and the feet extending from the washer and forming a plurality of claw-like portions capable of abutting against the roof, wherein the feet have a flared shape extending from the washer towards the antenna base side with a larger opening than the mounting hole in the roof, and have a mechanism for the foot-mounted pad to be inserted into the roof from the washer side. The foot is temporarily closed when the mounting hole is inserted and then opens to approximately its original state; the foot opening prevention part prevents the foot from opening beyond a specified distance when the first threaded part and the second threaded part are fastened by a washer with a foot pad and the claw part abuts against the roof, wherein the foot opening prevention part is cut out from the foot near the middle of the plurality of claw parts and has a horizontal part that is bent in the horizontal direction and a vertical part that is bent in the vertical direction; and a locking part is provided in at least one of the first threaded part and the second threaded part, which receives and locks the vertical part of the foot opening prevention part when the claw part with the foot pad abuts against the roof, so as to limit the movement of the foot opening direction.

[0016] Furthermore, the roof-mounted antenna mounting structure of the present invention may also include: a first threaded portion, disposed on an antenna base located on the outside of the vehicle body, protruding towards the roof and inserted into a mounting hole in the roof; a second threaded portion, fastened to the first threaded portion; and a foot-mounted washer, composed of a conductive plate-like body, having a washer and a foot, wherein the washer has a through hole through which the first threaded portion or the second threaded portion passes and the diameter of the washer is smaller than that of the mounting hole in the roof, and the foot extends from the washer and forms a claw portion capable of abutting against the roof, wherein the foot has a flared shape extending from the washer towards the antenna base side, larger than the mounting hole in the roof, and has a claw portion extending from the side towards a right angle. The foot has an extending lateral bend, and the foot has elasticity such that when the foot pad is inserted into the mounting hole on the roof from the washer side, the foot is temporarily closed and then opens to a substantially original state after insertion; an opening prevention part prevents the foot from opening to a predetermined extent when the first threaded part and the second threaded part are fastened by the washer with the foot pad and the claw part abuts against the roof, wherein the opening prevention part is provided at the front end of the lateral bend of the foot; and a locking part is provided in at least one of the first threaded part and the second threaded part, which receives and locks the side end of the opening prevention part when the claw part with the foot pad abuts against the roof, so as to restrict the movement of the foot in the opening direction.

[0017] Furthermore, the roof-mounted antenna mounting structure of the present invention may also include: a first threaded portion, disposed on an antenna base located on the outside of the vehicle body, protruding towards the roof and inserted into a mounting hole in the roof; a second threaded portion, fastened to the first threaded portion; and a foot-mounted washer, composed of a conductive plate-like body, having a washer and a foot, wherein the washer has a through hole through which the first threaded portion or the second threaded portion passes, and the diameter of the washer is smaller than that of the mounting hole in the roof; the foot extends from the washer and forms a claw portion capable of abutting against the roof, wherein the foot has a flared shape that extends from the washer towards the antenna base side, larger than the mounting hole in the roof, and extends from the side in a right-angle direction. The foot has a side bend, and the foot has elasticity that allows it to temporarily close when the foot pad is inserted into the mounting hole on the roof from the washer side, and to open to a substantially original state after insertion; an opening prevention part prevents the foot from opening to a predetermined extent when the first threaded part and the second threaded part are fastened by the washer with the foot pad and the claw part abuts against the roof, wherein the opening prevention part is formed by forming a cut and bending at the side bend of the foot; and a locking part is provided in at least one of the first threaded part and the second threaded part, which receives and locks the side end of the opening prevention part when the claw part with the foot pad abuts against the roof, so as to restrict the movement of the foot in the opening direction.

[0018] Here, the following configuration is acceptable: the foot pad has a temporary stop portion, which is used to temporarily fix the foot pad to the extent that the front end of the claw portion is suspended from the roof after the foot pad is inserted into the mounting hole on the roof from the washer side and before the first thread portion and the second thread portion are tightened; at least one of the antenna base, the receiving portion, the first thread portion and the second thread portion has a locking portion for the temporary stop portion to lock.

[0019] Furthermore, the roof-mounted antenna mounting structure of the present invention may also include: a first threaded portion, disposed on an antenna base located on the outside of the vehicle body, protruding towards the roof side and inserted into a mounting hole in the roof; a second threaded portion, fastened to the first threaded portion; and a foot-mounted pad, composed of a conductive plate-like body, having a washer and a foot, the washer having a through hole through which the first threaded portion or the second threaded portion passes, and the washer having a diameter smaller than the mounting hole in the roof, the foot extending from the washer and forming a claw portion capable of abutting against the roof, wherein the foot has a flared shape that extends from the washer towards the antenna base side larger than the mounting hole in the roof, and has elasticity such that the foot temporarily closes when the foot-mounted pad is inserted into the mounting hole in the roof from the washer side, and opens to approximately its original state after insertion; the foot prevents... The device comprises: a stop portion, which prevents the foot from opening beyond a specified distance when the first threaded portion and the second threaded portion are fastened together by a washer with a foot pad and the claw portion abuts against the roof; a locking portion, provided in at least one of the first threaded portion and the second threaded portion, which receives and locks the foot opening prevention portion when the claw portion with the foot pad abuts against the roof, so as to limit the movement of the foot in the direction of opening; a temporary stop portion, which temporarily fixes the foot pad to a state where the front end of the claw portion is suspended from the roof after the foot pad is inserted into the mounting hole on the roof from the washer side and before the first threaded portion and the second threaded portion are fastened; and a locking portion, provided in at least one of the antenna base, the locking portion, the first threaded portion, and the second threaded portion, for the temporary stop portion to lock in place.

[0020] Here, it is sufficient to simply place the temporary stop part on the foot opening prevention part.

[0021] Furthermore, the following configuration is acceptable: the foot-opening prevention part is configured such that when the first threaded part and the second threaded part are fastened by a washer, the temporary stop part shifts in the fastening direction and falls off from the locking part, and the foot-opening prevention part is pressed in a direction that prevents the foot from opening to a predetermined extent.

[0022] Alternatively, the footed washer may have a curved portion to prevent the footed washer from rotating when the first threaded portion and the second threaded portion are fastened via the washer, and / or to reinforce the washer.

[0023] Alternatively, the roof-mounted antenna mounting structure may also have a drop-prevention locking part, which is locked into the mounting hole on the roof to prevent the foot pad from falling off the roof when the antenna is removed from the mounting hole on the roof.

[0024] Alternatively, the anti-fall locking part can be pressed against the foot with the foot pad in the direction of the closed foot, thereby releasing the locking to the mounting hole on the roof.

[0025] Furthermore, the roof-mounted antenna mounting structure of the present invention may also include: a first threaded portion, disposed on an antenna base located on the outside of the vehicle body, protruding towards the roof and inserted into a mounting hole in the roof; a second threaded portion, fastened to the first threaded portion; and a foot-mounted washer, composed of a conductive plate-like body, having a washer and a foot, wherein the washer has a through hole through which the first threaded portion or the second threaded portion passes, and the washer is smaller in diameter than the mounting hole in the roof; the foot extends from the washer and forms a claw portion capable of abutting against the roof, wherein the foot has an opening from the washer towards the antenna base that is larger than the roof diameter. The mounting hole is larger in the shape of a flared horn and has the elasticity to temporarily close the foot when the foot pad is inserted into the mounting hole on the roof from the washer side and to open to a roughly original state after insertion; a temporary stop for temporarily fixing the foot pad, wherein the temporary stop temporarily fixes the foot pad so that the front end of the claw is suspended from the roof after the foot pad is inserted into the mounting hole on the roof from the washer side and before the first threaded part and the second threaded part are tightened; and a locking part is provided in at least one of the antenna base, the first threaded part and the second threaded part for locking by the temporary stop.

[0026] Alternatively, the footed washer may have a curved portion to prevent the footed washer from rotating when the first threaded portion and the second threaded portion are fastened via the washer, and / or, a temporary stop may be provided in the curved portion to reinforce the washer.

[0027] Alternatively, the through hole of the washer with foot pads may have internal teeth to prevent loosening of the thread relative to the first or second threaded portion.

[0028] Alternatively, the through hole of the washer with foot pads can be formed by a combination of a hole with an inner diameter larger than the first or second threaded portion and another hole with an inner diameter approximately equal to the first or second threaded portion, creating a roly-poly shape.

[0029] Alternatively, the foot with foot pads may have a reinforcing curved section to strengthen the foot.

[0030] Invention Effects

[0031] The roof-mounted antenna mounting structure of the present invention has the following advantages: it can be constructed in a lightweight and inexpensive manner, and can be installed with less force when fastened. In addition, it can be configured to be reliably and temporarily fixed to the roof. Attached Figure Description

[0032] Figure 1 This is a schematic exploded perspective view used to illustrate the roof-mounted antenna mounting structure of the present invention.

[0033] Figure 2 This is a partial cross-sectional side view used to illustrate the roof-mounted antenna mounting structure of the present invention.

[0034] Figure 3 This is a schematic perspective view illustrating the details of the roof-mounted antenna mounting structure of the present invention, including the foot pads.

[0035] Figure 4 This is a partial cross-sectional side view used to illustrate the details of the temporary fixing of the roof-mounted antenna mounting structure of the present invention.

[0036] Figure 5 This is a schematic diagram illustrating the details of the gasket with foot pads in the roof-mounted antenna mounting structure of the present invention.

[0037] Figure 6 This is a schematic top view illustrating details of another example of a gasket with foot pads used to illustrate the roof-mounted antenna mounting structure of the present invention.

[0038] Figure 7 This is a schematic exploded side view illustrating another example of temporary fixing of the roof-mounted antenna mounting structure of the present invention.

[0039] Figure 8 This is a schematic diagram illustrating another example of the opening prevention portion of the roof-mounted antenna mounting structure of the present invention.

[0040] Figure 9 This is a schematic diagram illustrating yet another example of the opening prevention portion of the roof-mounted antenna mounting structure of the present invention.

[0041] Figure 10 This is a partial cross-sectional side view used to illustrate an example of a falling-prevention locking part provided in the roof-mounted antenna mounting structure of the present invention.

[0042] Figure 11 This is a partial cross-sectional side view used to illustrate another example of a roof-mounted antenna mounting structure of the present invention having a drop-prevention locking part. Detailed Implementation

[0043] The specific embodiments will be described below along with the illustrated examples. The roof-mounted antenna mounting structure of the present invention is used to fix the antenna to the mounting holes on the roof of the vehicle. Figure 1 This is a schematic exploded perspective view used to illustrate the roof-mounted antenna mounting structure of the present invention. Furthermore, Figure 2 This is a partial cross-sectional side view used to illustrate the roof-mounted antenna mounting structure of the present invention. Figure 2 (a) represents the state before insertion. Figure 2 (b) indicates the state during insertion. Figure 2 (c) indicates the temporary fixed state after insertion and before tightening. Figure 2 (d) indicates the tightened state. In the diagram, the label is related to... Figure 1 Parts with the same reference numerals in the accompanying drawings represent the same object. As shown in the figure, the roof-mounted antenna mounting structure of the present invention mainly consists of a first threaded part 10, a second threaded part 20, a foot pad 30, a foot-prevention part 40, and a clamping part 50.

[0044] A first threaded portion 10 is provided on the antenna base 1, protruding towards the roof 2 and inserted into the mounting hole 3 of the roof 2. In the example shown, the first threaded portion 10 is depicted as a so-called threaded boss with an internal threaded hole 13. It should be noted that as long as the first threaded portion 10 has a hole (not shown) through which a cable can be inserted, the antenna and a receiver inside the vehicle can be connected via a cable through this hole.

[0045] Here, the antenna base 1 is disposed on the outside of the vehicle body. More specifically, the antenna base 1 is disposed on the roof 2 outside the vehicle body and is used to mount the circuit board, antenna components, etc. Furthermore, the antenna base 1 only needs to function as a grounding part for the circuit board and the installed antenna, and can be made of any conductive material. In addition, it may also include a resin matrix. If necessary, a claw support pedestal 11 is provided on the roof 2 side surface of the antenna base 1.

[0046] The second threaded portion 20 is fastened to the first threaded portion 10. In the example shown in the figure, the second threaded portion 20 is an external thread (bolt). That is, the second threaded portion 20 is screwed into the internal threaded hole 13 of the first threaded portion 10.

[0047] It should be noted that the example shown in the figure is an example where the first threaded portion 10 is formed by an internal threaded hole and the second threaded portion 20 is formed by a bolt, but the present invention is not limited to this. For example, the first threaded portion may be formed by an external thread and the second threaded portion 20 may be formed by a nut. That is, as long as the first threaded portion 10 and the second threaded portion 20 can be used to fasten the footed washer 30, it is acceptable.

[0048] The footed washer 30 has a washer 31 and a foot 32. The footed washer 30 can be made of a conductive plate-like body. The footed washer 30 can be integrally formed, for example, by stamping a metal sheet. The washer 31 has a through hole 38 through which either the first threaded portion 10 or the second threaded portion 20 passes. In the example shown, an example of a bolt through hole 38 for the second threaded portion 20 is shown. Furthermore, the washer 31 only needs to be smaller than the diameter of the mounting hole 3 in the roof 2. That is, as long as the washer 31 is large enough to pass through the mounting hole 3. It should be noted that in the example shown, the washer 31 is shown as approximately quadrilateral. However, the invention is not limited to this; the washer can also be any shape, such as circular, hexagonal, or octagonal.

[0049] The foot 32 extends from the washer 31. It should be noted that in the illustrated example, a configuration is shown where the foot 32 extends from both sides of the washer 31. Specifically, the foot 32 is provided on both sides of the washer 31, such that the remaining two sides without the foot 32 correspond to holes (not shown) through which cables, etc., are inserted in the first threaded portion 10. Multiple claws 33 are formed on the foot 32 that abut against the roof 2. The claws 33 engage with the roof 2 when tightened using bolts, which are the second threaded portion 20. Furthermore, the claw support 11 is configured to be located on the back side where the claws 33 engage with the roof 2, so that the roof 2 is clamped by the claw support 11 of the antenna base 1 and the claws 33. It should be noted that in the illustrated example, an example is shown where multiple claws 33 are partially provided at the front end of the foot 32, but the invention is not limited to this, and the claws 33 may also be referred to as the foot 32. Furthermore, the example shown in the figure is an example of foot 32 consisting of two feet extending to the left and right from washer 31, but it can also be consisting of three feet, etc.

[0050] like Figure 2 As shown in (a), the foot 32 has a flared shape that extends from the washer 31 toward the antenna base 1, larger than the mounting hole 3 of the roof 2. Here, the foot 32 of the foot pad 30 in the roof-mounted antenna mounting structure of the present invention has elasticity that allows the foot 32 to temporarily close when the foot pad 30 is inserted into the mounting hole 3 of the roof 2 from the washer 31 side, and to open to approximately its original state after insertion. More specifically, when the roof-mounted antenna is mounted on the roof 2, the foot pad 30 is inserted into the mounting hole 3 of the roof 2 from the washer 31 side. The foot 32 has a flared shape that extends larger than the mounting hole 3, so the foot 32 initially abuts against the edge of the mounting hole 3. Moreover, as... Figure 2 As shown in (b), the foot 32 is elastic, so it temporarily closes when the roof-mounted antenna is further pressed in. Thus, the foot 32 is able to pass through the mounting hole 3. Figure 2As shown in (c), when the foot 32 passes through the mounting hole 3 and is fully inserted, the foot 32 opens to its original state. That is, the foot 32 only needs to be a spring-like structure that is temporarily closed during insertion and opens to its original state after insertion. Thus, the roof-mounted antenna is temporarily fixed to the roof 2.

[0051] As described above, in the roof-mounted antenna mounting structure of the present invention, the foot 32 is elastic, temporarily closed when the foot pad 30 is inserted into the mounting hole 3 of the roof 2 from the washer 31 side, and opens to approximately its original state after insertion. That is, the foot 32 with the claw 33 is made of a relatively soft and thin material. Therefore, when the first threaded portion 10 and the second threaded portion 20 are fastened and the claw 33 abuts against the roof 2, the foot 32 may open to a predetermined extent and deform, and the claw 33 may not be able to fully engage with the roof 2. Therefore, in the roof-mounted antenna mounting structure of the present invention, a foot opening prevention part 40 is provided. The foot opening prevention part 40 prevents the foot 32 from opening to a predetermined extent when the first threaded portion 10 and the second threaded portion 20 are fastened to the washer 31 with the foot pad 30 and the claw 33 abuts against the roof 2.

[0052] For example, such as Figure 1 As shown, the foot-opening prevention portion 40 can be formed simply by cutting out from the foot portion 32. The foot-opening prevention portion 40 is composed of a horizontal portion 41 and a vertical portion 42. The horizontal portion 41 is formed by bending in the horizontal direction. The vertical portion 42 is formed by bending in the vertical direction. That is, the foot-opening prevention portion 40 can be formed simply by cutting out from the foot portion 32 near the plurality of claw portions 33, first bending in the horizontal direction to form the horizontal portion 41, and then bending in the vertical direction to form the vertical portion 42. Thus, the foot-opening prevention portion 40 has a shape that is temporarily bent inward from the foot portion 32 near the plurality of claw portions 33, and then bends again as it extends toward the antenna base 1. As a result, the foot-opening prevention portion 40 has a vertical portion 42 that extends in the direction of insertion into the mounting hole 3. In this invention, the foot-opening prevention portion 40 is configured such that while preventing the foot portion 32 from opening, the two claws located on the two ribs of the foot-opening prevention portion 40 equally bite into the roof 2.

[0053] And, as Figure 2As shown in (d), a retaining part 50 is provided. When the claw part 33 with the foot pad 30 abuts against the roof 2, the retaining part 50 receives and locks the vertical part 42 of the foot opening prevention part 40, so as to restrict the movement of the foot 32 in the opening direction. In the example shown, an example in which the retaining part 50 is provided on the antenna base 1 is shown. The retaining part 50 is configured such that before the claw part 33 abuts against the roof 2, the retaining part 50 abuts against the side of the vertical part 42 of the foot opening prevention part 40. Moreover, the retaining part 50 is positioned to restrict the movement of the foot 32 in the opening direction. On the other hand, the retaining part 50 is configured not to restrict the movement of the foot 32 in the closing direction when inserted into the mounting hole 3. The retaining part 50 only needs to receive and lock the foot opening prevention part 40 at a position where the movement of the foot 32 in the opening direction can be restricted, and does not necessarily need to be provided on the antenna base 1. For example, the receiving part can be provided in either the first threaded part 10 or the second threaded part 20.

[0054] With this configuration, when the first threaded portion 10 and the second threaded portion 20 are fastened together and the claw portion 33 abuts against the roof 2, the foot 32 is prevented from opening beyond a predetermined distance by the foot 40. Therefore, even if the foot pad 30 is made of a relatively soft and thin material, the claw portion 33 can reliably engage with the roof 2. Furthermore, even when fastened with bolts, no strong force is required, and there is no risk of roof deformation. Moreover, the foot pad 30 can be made of a thin sheet, thus allowing for lightweight and inexpensive manufacturing.

[0055] In the roof-mounted antenna mounting structure of the present invention, the foot pad 30 can be integrally formed by stamping a relatively flexible and thin metal sheet. Therefore, depending on the conditions, the foot pad 30 may sometimes be unable to withstand the tightening of the first threaded portion 10 and the second threaded portion 20. Therefore, the foot pad 30 can also be reinforced. Hereinafter, using Figure 3 A specific example of the reinforcement of the foot pad 30 is explained.

[0056] Figure 3 This is a schematic perspective view illustrating the details of the roof-mounted antenna mounting structure with foot pads according to the present invention. In the view, the parts labeled as... Figure 1 Parts with the same reference numerals refer to the same object. As shown, the washer 31 with foot pad 30 has, for example, a bent portion 34. The bent portion 34 can be formed by bending the side of the washer 31 in, for example, the same direction as the foot 32, i.e., toward the antenna base 1. By providing the bent portion 34, the washer 31 is strengthened.

[0057] Furthermore, the bent portion 34 may also function to prevent the footed washer 30 from rotating when the first threaded portion 10 and the second threaded portion 20 are fastened together via the washer 31. That is, the bent portion 34 is configured to be bent in a manner that abuts against the first threaded portion 10 and is sandwiched between the two sides opposite to the first threaded portion 10. With this configuration, when the first threaded portion 10 and the second threaded portion 20 are fastened together, the bent portion 34 abuts against the first threaded portion 10, preventing the footed washer 30 from rotating together.

[0058] In addition, such as Figure 3 As shown, a reinforcing curved portion 35 can also be formed on the foot portion 32 with the foot pad 30 to reinforce the foot portion 32. The reinforcing curved portion 35 can be formed by bending the side of the foot portion 32, for example, toward the first threaded portion 10 or the second threaded portion 20, extending from the foot portion 32. By providing the reinforcing curved portion 35, the foot portion 32 is reinforced.

[0059] Here, refer again Figure 2 (c) Figure 2 (c) indicates the state in which the roof-mounted antenna is temporarily fixed to the roof 2. That is, the state after the foot pad 30 is inserted from the washer 31 side into the mounting hole 3 of the roof 2 and before the first threaded portion 10 and the second threaded portion 20 are tightened. This state is before the first threaded portion 10 and the second threaded portion 20 are tightened, therefore, the front end of the claw portion 33 is suspended from the roof. When the foot pad 30 is inserted, if the front end of the claw portion 33 is in contact with the antenna base 1, the foot 32 may not open to its original state even after the mounting hole 3 is passed through. That is, the roof 2 needs to be sandwiched between the antenna base 1 and the claw portion 33. Therefore, in the temporary fixed state, it is preferable to temporarily fix the foot pad 30 to the extent that the front end of the claw portion 33 is suspended from the roof 2. Therefore, in the roof-mounted antenna mounting structure of the present invention, a temporary stop portion can also be provided on the foot pad 30. The temporary stop is used to temporarily fix the foot pad 30 so that the front end of the claw portion 33 is suspended from the roof 2 after the foot pad 30 is inserted from the washer 31 side into the mounting hole 3 of the roof 2 and before the first threaded portion 10 and the second threaded portion 20 are tightened. The following describes how to use it. Figure 4 Specific examples of temporary stop parts will be explained.

[0060] Figure 4 This is a partial cross-sectional side view used to illustrate the details of the temporary fixing of the roof-mounted antenna mounting structure of the present invention. Figure 4 (a) represents the state before insertion. Figure 4 (b) indicates the tightened state. In the diagram, the label is... Figure 1Parts with the same reference numerals denote the same object. Specifically, as shown in the figure, a temporary stop 36 is sufficient as long as the foot-prevention portion 40 is provided. For example, the temporary stop 36 can be provided as a hole, recess / protrusion provided in the vertical portion 42 of the foot-prevention portion 40. In the example shown, a temporary stop 36 formed by a recess is shown. Furthermore, the locking portion 37 can be provided, for example, in any one of the antenna base 1, the retaining portion 50, the first threaded portion 10, or the second threaded portion 20. That is, it can be provided outside of the foot pad 30. The locking portion 37 can be provided as a protrusion with a shape corresponding to the temporary stop 36, and locked into the temporary stop 36 formed by a recess.

[0061] The roof-mounted antenna mounting structure of the present invention, configured in this way, is first temporarily assembled by screwing the second threaded portion 20 into the first threaded portion 10 via the foot pad 30. At this time, as Figure 4 As shown in (a), the foot pad 30 with a temporary stop 36 is temporarily fixed in position by locking it to the locking part 37. This temporarily fixed position only needs to be determined such that the front end of the claw part 33 is suspended from the roof 2. Furthermore, the locking force between the temporary stop 36 and the locking part 37 only needs to be determined such that it will not fall off under pressure when inserted into the mounting hole 3 of the roof 2, but will fall off under pressure when the first threaded part 10 and the second threaded part 20 are tightened.

[0062] like Figure 4 As shown in (b), when the first threaded portion 10 and the second threaded portion 20 are tightened, the temporary stop portion 36 shifts in the tightening direction and disengages from the locking portion 37. At this time, the opening prevention portion 40 is pressed inward by the locking portion 37, which is composed of a protrusion. That is, the opening prevention portion 40 is pressed in a direction that opens the anti-opening foot portion 32 to a predetermined extent. It should be noted that even if the temporary stop portion 36 is provided by a protrusion and the locking portion 37 is provided by a recess, the opening prevention portion 40 is still pressed in the same direction that opens the anti-opening foot portion 32 to a predetermined extent.

[0063] With this configuration, the roof-mounted antenna mounting structure of the present invention facilitates assembly onto the roof 2. Furthermore, since the foot 32 is not pressed in a direction beyond a specified range, even with stronger force applied for tightening, the claw 33 can reliably engage with the roof 2.

[0064] It should be noted that the structure for temporarily fixing the footed washer 30 is not limited to the example shown in the figure above. For example, any structure capable of fixing the washer 31 of the footed washer 30 relative to the second threaded portion 20 formed by the bolt in a specified position is acceptable. Hereinafter, using... Figure 5 A specific example of washer 31 will be explained.

[0065] Figure 5This is a schematic diagram illustrating the details of the washer with foot pads in the roof-mounted antenna mounting structure of the present invention. Figure 5 (a) is a top view of the washer. Figure 5 (b) is a side sectional view of the washer. In the figure, the markings are related to... Figure 1 Parts with the same reference numerals denote the same object. As shown in the figure, internal teeth 39 are provided in the through hole 38 of the washer 31. The internal teeth 39 are a structure that prevents the thread from loosening relative to the second threaded portion 20. More specifically, as... Figure 5 As shown in (b), when the second threaded portion 20 is a bolt, for example, a free-spinning portion 25 without threaded teeth is provided at the root of the bolt (the junction of the bolt's threaded portion and its head). The gap between the internal teeth 39 is determined to be such that they abut against the threaded teeth of the second threaded portion and are screwed in, and is determined to be such that the internal teeth 39 of the free-spinning portion 25 do not abut against each other.

[0066] During temporary assembly, first screw the second threaded portion 20 into the washer 31 of the foot pad 30 until it reaches the freewheeling portion 25. Then, screw the second threaded portion 20 into the first threaded portion 10 via the foot pad 30. At this point, screw it in until the front end of the claw portion 33 is suspended from the roof 2, without screwing it in completely. This temporarily secures the foot pad 30, making assembly to the roof 2 easier.

[0067] Furthermore, using Figure 6 Let's illustrate another example of a washer. Figure 6 This is a schematic top view showing details of another example of a washer with foot pads used to illustrate the roof-mounted antenna mounting structure of the present invention. In the figure, it is labeled as... Figure 1 Parts with the same reference numerals in the accompanying drawings represent the same object. As shown in the figure, the through hole 38 of the washer 31 can also be formed by a roly-poly shape. The roly-poly shape is formed by combining a hole with an inner diameter larger than that of the second threaded portion 20 and a hole with an inner diameter approximately equal to that of the second threaded portion 20.

[0068] During temporary assembly, first insert the second threaded portion 20 into the larger inner diameter hole of the tumbler-shaped washer 31. Then, after moving the washer 31 to the root of the bolt, slide it laterally to fit it into a hole with an inner diameter approximately equal to that of the second threaded portion 20. This temporarily secures the footed washer 30, making assembly to the roof 2 easier.

[0069] Next, another example of temporary fixing of the roof-mounted antenna mounting structure of the present invention will be described. Figure 7 This is a schematic exploded side view illustrating another example of temporary fixing of the roof-mounted antenna mounting structure of the present invention. In the figure, the labels are... Figure 1Parts with the same reference numerals denote the same object. Specifically, in the example drawings, a temporary stop 36 is shown recessed within the curved portion 34 of the foot pad 30. It should be noted that the temporary stop 36 can also be provided as a hole or a protrusion. Furthermore, a locking portion 37 for engaging the temporary stop 36 can be provided, for example, in the first threaded portion 10. In the example drawings, an example is shown where the locking portion 37 is convexly provided in, for example, the first threaded portion 10, the shape of which corresponds to the recessed temporary stop 36. It should be noted that while the example drawings show the locking portion 37 provided in the first threaded portion 10, the invention is not limited to this; the locking portion 37 can also be provided in the antenna base 1 or the second threaded portion 20.

[0070] The roof-mounted antenna mounting structure of the present invention, configured in this way, is first temporarily assembled by screwing the second threaded portion 20 into the first threaded portion 10 via the foot pad 30. At this time, the foot pad 30, which has a temporary stop portion 36, is temporarily fixed in position by locking it to the locking portion 37. This temporarily fixed position only needs to be determined so that the front end of the claw portion 33 is suspended from the roof 2. Furthermore, the locking force between the temporary stop portion 36 and the locking portion 37 only needs to be determined so that it will not fall off under the pressing force when inserted into the mounting hole 3 of the roof 2, but will fall off under the pressing force when the first threaded portion 10 and the second threaded portion 20 are tightened.

[0071] Figure 8 This is a schematic diagram illustrating another example of the opening prevention portion of the roof-mounted antenna mounting structure of the present invention. Figure 8 (a) is a 3D diagram. Figure 8 (b) is the top view. Figure 8 (c) is a c-c sectional view. Figure 8 (d) is a d-d sectional view. In the figure, it is labeled with... Figure 1 Parts with the same reference numerals denote the same object. As shown in the figure, in this example, the foot pad 30 has a side bend 43 extending from the side of the foot 32 in a right-angle direction. That is, the side bend 43 is formed by bending the side of the foot 32 at a right angle. Moreover, a foot-opening prevention part 40 is provided at the front end of the side bend 43. It should be noted that the front end of the side bend 43 refers to the front end direction of the foot 32. The foot-opening prevention part 40 extending towards the front end of the side bend 43 is received and locked by the locking part 50 so as to restrict the movement of the foot 32 in the foot-opening direction. At this time, the locking part 50 is configured to receive and lock the side end of the foot-opening prevention part 40. That is, the foot-opening prevention part 40 is configured to make right-angle line contact with the locking part 50, and the direction of this line contact is parallel to the fastening direction.

[0072] With this configuration, the foot-opening prevention part 40, located at the front end of the side bending portion 43 (which is a plate-like body), makes right-angled contact with the retaining portion 50. Therefore, it can more firmly prevent the foot from opening when the foot 32 moves in the opening direction. Furthermore, since it is a line contact, the friction between the foot-opening prevention part 40 and the retaining portion 50 is weak. Therefore, during tightening, the friction between the foot-opening prevention part 40 and the retaining portion 50 will not be a problem, and tightening becomes easier. Moreover, since the foot-opening prevention part 40 is not a structure that grips the retaining portion 50, strict dimensional control is not required, and manufacturing becomes easier.

[0073] Furthermore, in the example shown, a temporary stop 36 is formed by cutting out from the foot 32 near the space between the plurality of claw portions 33. As shown, the temporary stop 36 is spring-shaped and is locked to the convex locking portion 37. It should be noted that the temporary stop 36 may also be spring-shaped on the side of the curved portion 34.

[0074] Figure 9 This is a schematic diagram illustrating yet another example of the opening prevention portion of the roof-mounted antenna mounting structure of the present invention. Figure 9 (a) is a 3D diagram. Figure 9 (b) is the top view. Figure 9 (c) is a side view. In the figure, the labels are... Figure 1 Parts with the same reference numerals in the accompanying drawings refer to the same object. It should be noted that only the foot pad 30 is shown in the drawings, while others are omitted. As shown, in this example, the foot pad 30 has a side bend 43 extending perpendicularly from the side of the foot portion 32. That is, the side bend 43 is formed by bending the side of the foot portion 32 at a right angle. Furthermore, an opening-leg prevention portion 40 is provided, which is formed by adding a cut and bending the side bend 43. That is, the opening-leg prevention portion 40 is formed by standing out obliquely from the side bend 43 to the outside. The opening-leg prevention portion 40, formed by adding a cut and bending the side bend 43, is received and locked by the locking portion 50 to restrict the opening direction movement of the foot portion 32. At this time, the locking portion 50 is configured to receive and lock the side end of the opening-leg prevention portion 40. That is, the foot-prevention part 40 is configured to abut and make line contact with the clamping part 50 at an angle, and the direction of the line contact is parallel to the fastening direction.

[0075] Furthermore, in the example shown, the curved portion 34 is configured to bend outward toward the side bend portion 43. Thus, when the first threaded portion 10 and the second threaded portion 20 are fastened and the claw portion 33 abuts against the roof 2, the foot portion 32 enables the curved portion 34 to function as a protective plate, so that the foot portion 32 will not twist or bend laterally in a direction different from the closed foot direction.

[0076] Next, an example of a device with a drop-prevention locking mechanism to prevent the foot pads from falling off the roof will be described. Figure 10 This is a partial cross-sectional side view used to illustrate an example in which a falling-prevention locking part is provided in the roof-mounted antenna mounting structure of the present invention. Figure 10 (a) indicates the state after tightening. Figure 10 (b) indicates the state where the thread is loosened. In the diagram, it is labeled as... Figure 1 Parts with the same reference numerals denote the same object. It should be noted that in the previously mentioned examples, an example was shown where the first threaded portion 10 was formed by an internal threaded hole and the second threaded portion 20 was formed by a bolt, but... Figure 10 The illustration shows an example where the first threaded portion 10 is made of a bolt and the second threaded portion 20 is made of a nut. However, the invention is not limited to this, and the structure described above is also possible, as long as the first threaded portion 10 and the second threaded portion 20 can be used to fasten the footed washer 30.

[0077] The roof-mounted antenna in the example diagram is fastened and fixed to the roof from the outside of the vehicle body via a first thread 10, rather than from the inside. This type of roof-mounted antenna mounting structure allows for fastening from the outside of the vehicle body, making it suitable even in situations where space for fastening tools is not provided due to vehicle design, cable configuration, etc., making it difficult to fasten from the inside of the vehicle body.

[0078] When repairing or maintaining a roof-mounted antenna, and removing the antenna from the mounting hole on the roof, such as... Figure 10 As shown in (b), the fastening of the first threaded portion 10 is loosened. At this time, if the foot pad 30 falls off the roof 2, it needs to be caught by some means inside the vehicle, making the operation complicated. Therefore, in the roof-mounted antenna mounting structure of the present invention, in order to prevent the foot pad 30 from falling off the roof 2, a drop-prevention locking part 60 is provided at the foot pad 30. When the antenna is removed from the mounting hole of the roof 2, the drop-prevention locking part 60 is locked in the mounting hole of the roof 2. The drop-prevention locking part 60 shown in the figure is applied to, for example, Figure 1 , Figure 2 The example shown is the foot pad 30. Specifically, the drop prevention locking part 60 is formed by forming a cut in the foot prevention part 40 and bending it outward relative to the mounting hole. With this structure, the foot pad can be easily reused, for example, when only the roof-mounted antenna body is replaced.

[0079] Furthermore, the drop-prevention locking part 60 can also be configured to press the foot-opening anti-fall part 40 towards the closed foot of the foot pad 32, thereby releasing the locking to the mounting hole in the roof 2. In other words, the drop-prevention locking part 60 only needs to be a structure that extends in the opposite direction to the closed foot of the foot 32 and locks into the mounting hole. With such a structure, even if the foot pad 30 needs to be replaced, it can be easily removed from the mounting hole in the roof 2.

[0080] Figure 11 This is a partial cross-sectional side view used to illustrate another example of a vehicle roof-mounted antenna mounting structure of the present invention having a drop-prevention locking part. Figure 11 (a) is for such Figure 8 The illustrated foot pad utilizes a drop-prevention locking mechanism. Specifically, it is an example where the drop-prevention locking mechanism 60 is provided within the foot-prevention portion 40 formed by the side bend 43. Furthermore, Figure 11 (b) is for example Figure 8 The illustrated foot pad utilizes a drop-prevention locking mechanism. Specifically, it is an example where the drop-prevention locking mechanism 60 is located on the side bend 43 where the foot-prevention mechanism 40 is located. Then, Figure 11 (c) is for such Figure 9 The illustrated footed pad utilizes a drop-prevention locking mechanism. Specifically, the drop-prevention locking mechanism 60 is provided on the side bend 43 where the foot-prevention part 40 is located. In either case, it is acceptable as long as it is formed by cutting and bending a conductive plate-like body, or by bending it in a spring-like shape, and is properly provided in a designated position to lock into the mounting hole.

[0081] Thus, by providing a drop-prevention locking part 60 to the foot pad 30, the foot pad 30 can be prevented from falling off the roof 2 even if the threaded fastening is loosened when removing the antenna from the mounting hole on the roof.

[0082] It should be noted that the roof-mounted antenna mounting structure of the present invention is not limited to the example shown in the above figures, and various modifications can be made without departing from the spirit of the present invention.

[0083] Explanation of reference numerals in the attached figures:

[0084] 1: Antenna base; 2: Roof; 3: Mounting hole; 10: First threaded part; 11: Claw support base; 13: Internal threaded hole; 20: Second threaded part; 25: Idling part; 30: Foot pad; 31: Washer; 32: Foot; 33: Claw; 34: Bending part; 35: Reinforcing bending part; 36: Temporary stop part; 37: Locking part; 38: Through hole; 39: Internal tooth; 40: Foot opening prevention part; 41: Horizontal part; 42: Vertical part; 43: Side bending part; 50: Locking part; 60: Drop prevention locking part.

Claims

1. A roof-mounted antenna mounting structure for fixing an antenna to a mounting hole on the roof of a vehicle, characterized in that it comprises: The first threaded part is provided on the antenna base located on the outside of the car body, protrudes towards the roof side, and is inserted into the mounting hole on the roof; The second threaded portion is fastened to the first threaded portion; The foot pad is made of a conductive plate and has a washer and feet. The washer has a through hole for the first or second threaded portion to pass through, and the diameter of the washer is smaller than that of the mounting hole on the roof. The feet extend from the washer and form multiple claws that can abut against the roof. The foot has a flared shape that extends from the washer to the antenna base side, larger than the mounting hole on the roof, and has the elasticity to temporarily close the foot when the foot pad is inserted from the washer side into the mounting hole on the roof, and to open the foot to approximately its original state after insertion. The foot-opening prevention part prevents the foot from opening to a predetermined extent when the first threaded part and the second threaded part are fastened by the washer with the foot pad and the claw part abuts against the roof. The foot-opening prevention part is cut out from the foot part near the middle of the multiple claw parts and has a horizontal part that is bent in the horizontal direction and a vertical part that is bent in the vertical direction. as well as The receiving part, provided in at least one of the first threaded part and the second threaded part, receives and locks the vertical part of the foot opening prevention part when the claw part with the foot pad abuts against the roof, so as to restrict the movement of the foot opening direction.

2. A roof-mounted antenna mounting structure for fixing an antenna to a mounting hole on the roof of a vehicle, characterized in that it comprises: The first threaded part is provided on the antenna base located on the outside of the car body, protrudes towards the roof side, and is inserted into the mounting hole on the roof; The second threaded portion is fastened to the first threaded portion; A foot-mounted gasket, composed of a conductive plate, has a washer and a foot. The washer has a through hole for the first or second threaded portion to pass through, and the diameter of the washer is smaller than the diameter of the mounting hole in the roof. The foot extends from the washer and forms a claw portion that abuts against the roof. The foot has a flared shape that extends from the washer to the antenna base side, larger than the mounting hole on the roof, and has a side bend extending from the side in a right-angle direction. The foot has elasticity that allows it to temporarily close when the foot pad is inserted into the mounting hole on the roof from the washer side, and to open to approximately its original state after insertion. The foot opening prevention part prevents the foot from opening to a predetermined extent when the first threaded part and the second threaded part are fastened by the washer with the foot pad and the claw part abuts against the roof. The foot opening prevention part is provided at the front end of the side bend of the foot. as well as The clamping part, provided in at least one of the first threaded part and the second threaded part, receives and clamps the side end of the foot opening prevention part when the claw part with the foot pad abuts against the roof, so as to restrict the movement of the foot in the opening direction.

3. A roof-mounted antenna mounting structure for fixing an antenna to a mounting hole on the roof of a vehicle, characterized in that it comprises: The first threaded part is provided on the antenna base located on the outside of the car body, protrudes towards the roof side, and is inserted into the mounting hole on the roof; The second threaded portion is fastened to the first threaded portion; A foot-mounted gasket, composed of a conductive plate, has a washer and a foot. The washer has a through hole for the first or second threaded portion to pass through, and the diameter of the washer is smaller than the diameter of the mounting hole in the roof. The foot extends from the washer and forms a claw portion that abuts against the roof. The foot has a flared shape that extends from the washer to the antenna base side, larger than the mounting hole on the roof, and has a side bend extending from the side in a right-angle direction. The foot has elasticity that allows it to temporarily close when the foot pad is inserted into the mounting hole on the roof from the washer side, and to open to approximately its original state after insertion. The foot-opening prevention part prevents the foot from opening to a predetermined extent when the first threaded part and the second threaded part are fastened by the washer with the foot pad and the claw part abuts against the roof. The foot-opening prevention part is formed by forming a cut and bending at the side bend of the foot. as well as The clamping part, provided in at least one of the first threaded part and the second threaded part, receives and clamps the side end of the foot opening prevention part when the claw part with the foot pad abuts against the roof, so as to restrict the movement of the foot in the opening direction.

4. The roof-mounted antenna mounting structure according to any one of claims 1 to 3, characterized in that, The foot pad has a temporary stop portion, which is used to temporarily fix the foot pad so that the front end of the claw portion is suspended from the roof after the foot pad is inserted into the mounting hole on the roof from the washer side and before the first threaded portion and the second threaded portion are tightened. At least one of the antenna base, the receiving part, the first threaded part, and the second threaded part has a locking part for locking the temporary stop part.

5. A roof-mounted antenna mounting structure for fixing an antenna to a mounting hole on the roof of a vehicle, characterized in that it comprises: The first threaded part is provided on the antenna base located on the outside of the car body, protrudes towards the roof side, and is inserted into the mounting hole on the roof; The second threaded portion is fastened to the first threaded portion; A foot-mounted gasket, composed of a conductive plate, has a washer and a foot. The washer has a through hole for the first or second threaded portion to pass through, and the diameter of the washer is smaller than the diameter of the mounting hole in the roof. The foot extends from the washer and forms a claw portion that abuts against the roof. The foot has a flared shape that extends from the washer to the antenna base side, larger than the mounting hole on the roof, and has the elasticity to be temporarily closed when the foot pad is inserted from the washer side into the mounting hole on the roof, and to open back to approximately the original state after insertion. The foot-opening prevention part prevents the foot from opening to a specified extent when the first threaded part and the second threaded part are fastened by the washer with the foot pad and the claw part abuts against the roof. The clamping part, provided in at least one of the first threaded part and the second threaded part, receives and clamps the foot-opening prevention part when the claw part with the foot pad abuts against the roof, so as to restrict the movement of the foot in the opening direction; A temporary stop is used to temporarily fix the foot pad, wherein the temporary stop temporarily fixes the foot pad to the extent that the front end of the claw portion is suspended from the roof after the foot pad is inserted from the washer side into the mounting hole on the roof and before the first threaded portion and the second threaded portion are tightened. as well as A locking part is provided in at least one of the antenna base, the locking part, the first threaded part, and the second threaded part, for the temporary stop part to lock in place.

6. The roof-mounted antenna mounting structure according to claim 5, characterized in that, The temporary stop is located in the foot opening prevention part.

7. The roof-mounted antenna mounting structure according to claim 6, characterized in that, The foot-opening prevention part is configured such that when the first threaded part and the second threaded part are fastened by a washer, the temporary stop part shifts in the fastening direction and falls off from the locking part, and the foot-opening prevention part is pressed in a direction that prevents the foot from opening to a predetermined extent.

8. The roof-mounted antenna mounting structure according to any one of claims 1 to 7, characterized in that, The footed washer has a curved portion to prevent the footed washer from rotating when the first threaded portion and the second threaded portion are fastened via the washer, and / or to reinforce the washer.

9. The roof-mounted antenna mounting structure according to any one of claims 1 to 8, characterized in that, It also has: The drop-prevention locking part is locked into the mounting hole on the roof to prevent the foot pad from falling off the roof when the antenna is removed from the mounting hole on the roof.

10. The roof-mounted antenna mounting structure according to claim 9, characterized in that, The drop prevention locking part presses the foot opening prevention part towards the closed foot of the foot with foot pad, thereby releasing the locking to the mounting hole on the roof.

11. A roof-mounted antenna mounting structure for fixing an antenna to a mounting hole on a vehicle roof, characterized in that it comprises: The first threaded part is provided on the antenna base located on the outside of the car body, protrudes towards the roof side, and is inserted into the mounting hole on the roof; The second threaded portion is fastened to the first threaded portion; A foot-mounted gasket, composed of a conductive plate, has a washer and a foot. The washer has a through hole for the first or second threaded portion to pass through, and the diameter of the washer is smaller than the diameter of the mounting hole in the roof. The foot extends from the washer and forms a claw portion that abuts against the roof. The foot has a flared shape that extends from the washer to the antenna base side, larger than the mounting hole on the roof, and has the elasticity to temporarily close the foot when the foot pad is inserted from the washer side into the mounting hole on the roof, and to open the foot to approximately its original state after insertion. A temporary stop is used to temporarily fix the foot pad, wherein the temporary stop temporarily fixes the foot pad to the extent that the front end of the claw portion is suspended from the roof after the foot pad is inserted from the washer side into the mounting hole on the roof and before the first threaded portion and the second threaded portion are tightened. as well as A locking part is provided in at least one of the antenna base, the first threaded part, and the second threaded part, for temporary locking of the stop part.

12. The roof-mounted antenna mounting structure according to claim 11, characterized in that, The footed washer has a curved portion to prevent the footed washer from rotating when the first threaded portion and the second threaded portion are fastened via the washer, and / or to reinforce the washer. The temporary stop is located at the bend.

13. The roof-mounted antenna mounting structure according to any one of claims 1 to 12, characterized in that, The through hole of the washer with foot pad has internal teeth to prevent the thread from loosening relative to the first thread or the second thread.

14. The vehicle roof-mounted antenna mounting structure according to any one of claims 1 to 13, characterized in that, The through hole of the washer with foot pad is formed by a combination of a hole with an inner diameter larger than the first thread or the second thread and another hole with an inner diameter approximately equal to the first thread or the second thread, forming a roly-poly shape.

15. The roof-mounted antenna mounting structure according to any one of claims 1 to 14, characterized in that, The foot with foot pads has a reinforcing curved portion for strengthening the foot.

Images