JP5112465B2 - Roof mount antenna mounting structure - Google Patents

Description

  The present invention relates to a mounting structure for a roof mount antenna, and more particularly to a roof mounting antenna mounting structure that is inserted into a mounting hole of a vehicle roof and fixed.

  For example, as disclosed in Patent Document 1, a conventional antenna attached to a vehicle roof is inserted into a mounting hole provided in the vehicle roof by inserting a screw boss protruding from the antenna base, and fastened with a nut. What is fixed to is common. In the case of such a configuration, there is a problem that workability is poor because bolts are dropped at the time of mounting work or fastening is performed from the vehicle interior side via the vehicle roof.

  In order to eliminate such poor workability, Patent Document 2 by the same applicant as the present application describes the attachment of a vehicle roof antenna that can be easily attached to a vehicle and can reduce the burden on the operator. A structure is disclosed. This attachment structure uses a washer with a leg, and after inserting the attachment structure into the attachment hole of the vehicle roof from the outside of the vehicle compartment, the leg portion of the washer with the leg spreads with the fastening of a bolt or the like from the inside of the vehicle compartment, A leg claw bites into the vehicle interior side of the vehicle roof, is fixed to the vehicle roof, and is electrically connected (grounded) to the vehicle roof.

JP 2001-036315 A JP 2006-248486 A

  For example, when trying to fix the antenna to the mounting hole of the vehicle roof using the mounting structure described in Patent Document 2, if the rigidity of the washer with the legs is too high, the pawls of the leg portions are not attached to the vehicle roof before the leg portions spread. There is a possibility that the vehicle roof may be deformed because the position of the nail and the claw receiving pedestal provided at the position facing each other through the vehicle roof does not match. In the recent trend of reducing the weight of vehicles, the vehicle roof has been made thinner, so that the possibility of deformation of the vehicle roof is further increased. Therefore, it is conceivable to reduce the rigidity of the washer with the leg so that the leg part can be easily spread. The washer with a leg is manufactured by pressing a metal plate or the like, and the leg can be easily spread by reducing the rigidity of the metal plate. However, when the rigidity of the metal plate is lowered, the rigidity of the washer portion is also lowered, so that the washer portion of the legged washer may be unintentionally deformed when the bolt is fastened. If the washer part is deformed, the pawls of the leg part do not sufficiently penetrate the vehicle roof, and there is a possibility that the grounding is insufficient without breaking through the coating layer of the vehicle roof. In addition, even when the roof mount antenna is increased in size for the composite antenna and the washer with the leg itself is increased in size, there is a possibility that the washer portion may be deformed when trying to fasten with the same size bolt.

  In view of such circumstances, the present invention intends to provide a roof mount antenna mounting structure that can be securely connected and fixed to a vehicle roof with a predetermined torque.

  In order to achieve the above-described object of the present invention, a roof mount antenna mounting structure according to the present invention includes an antenna base disposed on the outside of a vehicle compartment, and is provided on the antenna base and protrudes toward the vehicle roof, A first screw part inserted into the hole, a second screw part fastened to the first screw part, a washer ring having a hole through which the first screw part or the second screw part passes, and extending from the washer ring A legged washer having a plurality of leg portions having claws capable of coming into contact with the vehicle roof; and a first threaded portion and a second threaded portion provided around the first threaded portion through a washer ring of the legged washer. When the is fastened, it is arranged so as to overlap the abutment part that abuts the leg part so as to spread a plurality of leg parts, and the washer ring of the washer with the leg, and distributes the force of the second screw part applied to the washer ring. You Those comprising a reinforcing plate, a.

  Here, the washer of the legged washer has a polygonal shape or a circular shape, and the reinforcing plate may be a polygonal shape or a circular shape in accordance with the shape of the washer ring.

  Further, the plurality of leg portions of the washer with a leg have a notch portion near the central portion or both side portions of the connecting portion with the washer ring, and the reinforcing plate has a protrusion portion that is locked to the notch portion. It ’s fine.

  Moreover, the reinforcement board should just be a thing with rigidity higher than a washer ring.

  Further, the washer with the leg has a width that passes through the mounting hole of the vehicle roof before the plurality of leg portions spreads, and is inserted into the mounting hole of the vehicle roof from the outside of the vehicle compartment. It is sufficient if it is wider than the width of the roof mounting hole.

  The roof mount antenna mounting structure of the present invention has an advantage that it can be securely connected and fixed to the vehicle roof with a predetermined torque.

FIG. 1 is an exploded perspective view of a roof mount antenna mounting structure according to the present invention. FIG. 2 is a perspective view for explaining a reinforcing plate and a washer with a leg of the roof mount antenna mounting structure of the present invention. FIG. 3 is a schematic cross-sectional view for explaining the movement of the leg portion of the washer with the leg when the roof mount antenna mounting structure of the present invention is mounted on the vehicle roof. FIG. 4 is an exploded perspective view of another example of the roof mount antenna mounting structure of the present invention. FIG. 5 is a perspective view for explaining another example of the reinforcing plate and the washer with the leg of the roof mount antenna mounting structure of the present invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described together with illustrated examples. FIG. 1 is an exploded perspective view of a roof mount antenna mounting structure according to the present invention. As illustrated, the roof mount antenna mounting structure of the present invention includes an antenna base 10, a first screw portion 20, a second screw portion 30, a washer 40 with legs, an abutment portion 50, and a reinforcing plate 60. It is mainly composed. Note that a casing part provided so as to cover the antenna base 10 and an antenna mast installed in the casing part are not shown.

  The antenna base 10 is disposed outside the vehicle compartment. More specifically, the antenna base 10 is disposed on the vehicle roof outside the vehicle compartment, and is mounted with a circuit board and the like. And the antenna base 10 should just function as a circuit board and the ground of the antenna attached, and should just be comprised with a conductor. A claw receiving base 12 is provided on the surface of the antenna base 10 on the vehicle roof side.

  The first screw portion 20 is provided on the antenna base 10, protrudes toward the vehicle roof, and is inserted into the mounting hole of the vehicle roof. In the illustrated example, the first screw portion 20 has a female screw hole 21. The first screw portion 20 has a hole (not shown) through which a cable or the like can be inserted, and the antenna and the receiver in the vehicle compartment are connected through this hole.

  The second screw part 30 is fastened to the first screw part 20. In the example of illustration, the 2nd screw part 20 showed the external thread (bolt). That is, the second screw portion 30 is screwed into the female screw hole 21 of the first screw portion 20.

  The washer 40 with a leg has a washer ring 41 and a plurality of leg portions 42. The legged washer 40 may be integrally formed by, for example, pressing a metal plate. The washer ring 41 has a hole 45 through which the second screw portion 30 passes. In the illustrated example, the washer ring 41 has a substantially rectangular shape. However, the present invention is not limited to this, and the washer ring may be a polygonal shape such as a hexagonal shape or an octagonal shape. Further, the plurality of leg portions 42 extend from the washer ring 41. More specifically, the leg portion 42 extends from the periphery of the washer ring 41, so that the leg portion 42 is curved inward from the joint portion with the washer ring 41, and then spreads outward. It is formed in a straight line. That is, the linear portion is formed to be inclined with respect to the first screw portion 20. In the illustrated example, the leg portion 42 is composed of three pieces. In this case, legs 42 are provided on three sides of the washer ring 41, and the remaining one side where the legs 42 are not provided corresponds to a cable insertion hole provided in the first screw part 20. It is a part to do. In addition, a claw 43 that can come into contact with the vehicle roof is provided at the tip of the leg portion 42. The nail | claw 43 bites into a vehicle roof at the time of the fastening with a volt | bolt. And the nail | claw holder base 12 is comprised in the back surface side of the position where the nail | claw 43 bites into a vehicle roof so that a vehicle roof may be pinched | interposed with the nail | claw holder base 12 and the nail | claw 43 of the antenna base 10. FIG.

  Note that the washer with the leg of the roof mount antenna mounting structure of the present invention is not limited to the above-described illustrated example, and the tapered portion extends to the side of the leg as described in, for example, Patent Document 2 described above. It may be a structure as provided.

  Here, the leg portion 42 has a notch 48 at a joint portion with the washer ring 41. In the illustrated example, the notch 48 is provided in the vicinity of the center of the joint between the leg 42 and the washer ring 41. This is provided so that the leg portion 42 can be easily spread at the time of fastening with a bolt, and the spread strength of the leg portion 42 with respect to the fastening torque of the bolt can be adjusted by the size of the notch 48. .

  A contact portion 50 is provided around the first screw portion 20. When the first screw portion 20 and the second screw portion 30 are fastened through the washer ring 41 of the legged washer 40, the contact portion 50 contacts the leg portion 42 so as to widen the plurality of leg portions 42. It is comprised as follows. The relationship between the contact portion 50 and the legged washer 40 will be described in detail later.

  In the roof mount antenna mounting structure of the present invention, the reinforcing plate 60 is disposed so as to overlap the washer ring 41 of the legged washer 40. The reinforcing plate 60 is provided in order to disperse the force of the second screw portion 30 applied to the washer ring 41, and has a hole 65 through which the second screw portion 30 passes. The reinforcing plate 60 preferably has a shape that matches the shape of the washer ring 41. This prevents the washer ring 41 from being deformed by the second screw portion 30.

  FIG. 2 is a perspective view for explaining the reinforcing plate and the washer with the leg of the roof mount antenna mounting structure of the present invention. In the figure, the parts denoted by the same reference numerals as those in FIG. In the illustrated example, since the washer ring 41 has a quadrangular shape, the reinforcing plate 60 is configured in a quadrangular shape accordingly. When the washer ring has a polygonal shape such as a hexagonal shape or an octagonal shape, a polygonal reinforcing plate may be used correspondingly. Further, the reinforcing plate 60 is provided with a protruding portion 62, and the protruding portion 62 is configured to be engaged with the notch portion 48 of the legged washer 40. That is, in the illustrated example, the notch is provided in the vicinity of the central portion of the joint portion of the leg portion 42 with the washer ring 41, so that the protrusion 62 is also near the central portion of one side of the reinforcing plate 60 accordingly. It shows what is provided in. Here, since the protrusion 62 is locked to the notch 48 so as to obtain an effect such as preventing the reinforcing plate 60 from rotating during fastening with a bolt, at least one protrusion is required. I just need a department.

  The reinforcing plate 60 may be formed of the same material as the washer ring 41, but it is preferable that the reinforcing plate 60 has higher rigidity than the washer ring 41. By making the plate thickness thicker than the washer ring 41 or by using a harder material, it is possible to reliably prevent the washer ring 41 from being deformed.

  In the above-described example, the reinforcing plate and the washer with the leg are configured separately, but may be configured integrally. For example, a reinforcing plate and a washer with a leg can be formed by bending a plate-like body 180 degrees to make two pieces together. However, if the reinforcing plate and the washer with the legs are configured separately, it is possible to easily change the thickness and material of the reinforcing plate, and thus it is possible to reliably suppress deformation of the washer ring. In addition, manufacturing is easier than integrally molding the reinforcing plate and the washer with the leg.

  Next, the movement of the leg will be described with reference to FIG. FIG. 3 is a schematic cross-sectional view for explaining the movement of the leg portion of the washer with the leg when the roof mount antenna mounting structure of the present invention is mounted on the vehicle roof, and FIG. FIG. 3B shows the previous state, FIG. 3C shows the state during fastening of the bolt, and FIG. 3C shows the state after fastening of the bolt. In the figure, the same reference numerals as those in FIG. 1 denote the same parts.

  As illustrated, the washer 40 with legs of the roof mount antenna mounting structure of the present invention has a width that passes through the mounting hole H of the vehicle roof R before the plurality of leg portions 42 spreads. Together with the first screw part 20, the second screw part 30, the abutting part 50 and the reinforcing plate 60, the legged washer 40 is inserted into the mounting hole H provided in the vehicle roof R from the outside of the vehicle compartment (FIG. 3 ( a)). Since the second screw part 30 can be inserted into the mounting hole H in a state in which the second screw part 30 is temporarily fixed in advance, a bolt or the like is not dropped at the time of fastening. In addition, the cross-sectional shape parallel to the vehicle roof surface of the root portion of the antenna base 10 of the first screw portion 20 has a shape that substantially matches the mounting hole H of the vehicle roof R. Accordingly, the base portion of the first screw portion 20 is fitted into the mounting hole H, so that the antenna base 10 can be configured not to rotate or rattle with respect to the vehicle roof R. Thereafter, when the bolt that is the second screw portion 30 is tightened, the inside of the leg portion 42 abuts against the abutment portion 50 so that the leg portion 42 of the legged washer 40 spreads outward. The leg portion 42 is formed in a straight shape so as to spread outward after being slightly inwardly curved in the S shape as described above, and the linear portion abuts on the abutment portion 50, It is comprised so that force may be applied in the direction which the leg part 42 spreads outside. Therefore, as the bolt is tightened, the leg portion 42 spreads outward (see FIG. 3B). When the fastening of the second screw portion 30 is completed, the leg portion 42 spreads, and the claw 43 provided at the tip of the leg portion 42 bites into the vehicle roof to complete the electrical connection and fixing (FIG. 3 (c) )). As shown in the drawing, the claw 43 is provided at an angle from the leg portion 42 to the vehicle roof R side so as to bite into the vehicle roof R when the leg portion 42 spreads. Further, as shown in the figure, the claw receiving pedestal 12 is arranged so that the claw 43 is positioned in accordance with the back side of the vehicle roof R at a position where the claw 43 bites into the vehicle roof.

  As shown in FIG. 3C, when the fastening is completed, the plurality of leg portions 42 are wider than the width of the mounting hole H of the vehicle roof R. Thereby, the roof mount antenna mounting structure does not come out of the mounting hole H, and the mounting can be reliably performed only by the fastening operation only from the vehicle interior side. The operator only has to insert the roof mount antenna mounting structure into the mounting hole H of the vehicle roof R in advance, and then only tighten the bolt from the vehicle interior side.

  The roof mount antenna mounting structure of the present invention is configured in this way, so that electrical connection and fixation to the vehicle roof can be reliably performed with a predetermined torque. At this time, by providing the reinforcing plate, it is possible to prevent unintentional deformation of the washer ring, so that the claw surely bites into the vehicle roof, and is reliably electrically connected by breaking through the coating layer of the vehicle roof. . Further, by providing the reinforcing plate, it is possible to uniformly transmit the pressing force of the second screw portion to the washer with the leg, so that the leg portion does not open unevenly. Therefore, since the claw of the leg portion bites into the position where the artificial claw pedestal is provided, it is possible to prevent the vehicle roof from being deformed. Furthermore, even if the roof mount antenna is sized up for a composite antenna and the washer with the leg itself is sized up, even if fastened with the same size bolt, the washer ring prevents deformation of the washer ring. Is possible.

  Next, another example of the roof mount antenna mounting structure of the present invention will be described. FIG. 4 is an exploded perspective view of another example of the roof mount antenna mounting structure of the present invention. In the figure, portions denoted by the same reference numerals as those in FIG. In the example shown in FIG. 1, the first screw portion has a female screw hole and the second screw portion is a male screw. However, in the example shown in FIG. 4, the male and female are reversed. is there. That is, the first screw portion is a male screw, and the second screw portion is constituted by a female screw nut. Hereinafter, description will be given with reference to the drawings.

  In the illustrated example, a male screw 21a protrudes from the antenna base 10 as the first screw portion 20a. A contact portion 50 is provided around the first screw portion 20a. The first screw part 20a passes through the hole 45 provided in the washer ring 41 of the washer 40 with the legs and the hole 65 provided in the reinforcing plate 60, and is fastened by a female screw nut as the second screw part 30a. Thereby, the leg part 42 contact | abuts to the contact part 50, and a leg part spreads. Since these movements are the same as in the example shown in FIG.

  Thus, the roof mount antenna mounting structure of the present invention can be applied regardless of which of the first screw portion and the second screw portion is a male screw or a female screw.

  Next, another example of the reinforcing plate and legged washer of the roof mount antenna mounting structure of the present invention will be described. FIG. 5 is a perspective view for explaining another example of the reinforcing plate and the washer with the leg of the roof mount antenna mounting structure of the present invention. In the figure, portions denoted by the same reference numerals as those in FIG. In FIGS. 1 and 2, the washer ring and the reinforcing plate of the legged washer have a substantially quadrangular shape. However, in FIG. 5, the washer ring and the reinforcing plate of the legged washer have a generally circular shape. belongs to.

  As shown in the figure, when the washer ring 41a of the legged washer 40a is circular, the connection part of the leg part 42a is near the center part of the leg part 42a, so that the cutout part 48a is connected to the washer ring 41a of the leg part 42a. What is necessary is just to be provided in the both sides of this junction part. The spread strength of the leg portion 42a with respect to the fastening torque of the bolt can be adjusted depending on the size of the notch portion 48a. The reinforcing plate 60a is also formed in a circular shape in accordance with the washer ring 41a, and the protruding portion 62a is configured to be engaged with the notch 48a of the legged washer 40a. When the reinforcing plate 60a is a perfect circle, there is no problem even if the reinforcing plate 60a is rotated when tightening with a bolt, and thus the protrusion 62a may not be provided.

  It should be noted that the roof mount antenna mounting structure of the present invention is not limited to the illustrated examples described above, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

10 antenna base 20, 20a first screw part 21 female screw hole 21a male screw 30, 30a second screw part 40, 40a leg washer 41, 41a washer ring 42, 42a leg part 43 claw 45 hole 48, 48a notch part 50 Contact part 60, 60a Reinforcement plate 62, 62a Projection part 65 Hole

Claims (4)

A roof mount antenna mounting structure for fixing an antenna to a mounting hole of a vehicle roof, the roof mount antenna mounting structure,
An antenna base disposed outside the vehicle compartment;
A first screw portion provided on the antenna base, protruding to the vehicle roof side and inserted into a mounting hole of the vehicle roof;
A second screw portion fastened to the first screw portion;
Said first threaded portion and the second threaded portion have a hole penetrating, has a polygonal or circular washer ring, and a plurality of legs having a pawl which can contact the extension Mashimashi vehicle roof from the washer ring A washer with legs,
A contact that is provided around the first screw portion and abuts the leg portion so as to widen the plurality of leg portions when the first screw portion and the second screw portion are fastened through the washer ring of the washer with the leg. And
A reinforcing plate that is arranged so as to overlap the washer ring of the leg washer, has a polygonal shape or a circular shape in accordance with the shape and size of the washer ring, and distributes the force of the second screw portion applied to the washer ring;
A roof mount antenna mounting structure comprising: In the roof mount antenna mounting structure according to claim 1 ,
The plurality of legs of the legged washer has a notch in the vicinity of the central part or both sides of the connecting part with the washer ring,
The reinforcing plate has a protrusion locked to the notch.
A roof mount antenna mounting structure characterized by that. In roof mount antenna mounting structure according to claim 1 or claim 2, wherein the reinforcing plate, roof mount antenna mounting structure, wherein the stiffness is higher than the washer ring. The roof mount antenna mounting structure according to any one of claims 1 to 3 , wherein the washer with the leg has a width passing through a mounting hole of the vehicle roof before the plurality of leg portions spreads, and from the outside of the vehicle compartment. A roof mount antenna mounting structure characterized in that after being inserted into a mounting hole of a vehicle roof and a plurality of leg portions are expanded, the mounting width is wider than the width of the mounting hole of the vehicle roof.