JP2006217285A - Structure of attaching vehicle antenna and method of attaching vehicle antenna - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To maintain the appropriate attached state of a vehicl antenna to a vehicle body panel even if a nut is loosened in the attachment of the vehicl antenna. <P>SOLUTION: This structure is provided with: a bolt 10 projected from the lower end of the vehicle antenna 1; and a locking member 30 arranged by surrounding the bolt 10 and being projected along the axial direction from the lower end of the vehicle antenna 1, and provided with a pawl 31 folded over upward on the lower end. By plastically deforming the pawl 31 which has passed through a through-hole 5a accompanied by the insertion of the bolt 10 to the through-hole 5a of a roof panel 5 by the pressurization of the nut 20 screwed to the bolt 10, the vehicle antenna 1 is fixed in a state of clamping the roof panel 5 by the lower end of the vehicle antenna 1 and the pawl 31. Thus, even if the nut 20 is loosened, the appropriate attached state of the vehicle antenna 1 is maintained by the locking member 30. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle antenna mounting structure and a vehicle antenna mounting method.

Conventionally, as a structure for attaching a vehicle antenna to a roof panel, a bolt projecting from the lower end of the vehicle antenna is inserted into a through-hole formed in the roof panel, and a nut is screwed into the bolt. There is a structure for fastening to a roof panel (for example, Patent Documents 1 and 2).
Japanese Patent No. 3540734 (page 4, FIGS. 3 and 4) JP 2004-48599 A (page 9 to page 11, FIG. 2)

  However, since the bolts and nuts have a tightening structure, the nuts may be loosened with respect to the bolts depending on temperature changes, vibrations, and the like, which may cause rattling in the mounting of the vehicle antenna.

  An object of the present invention is to maintain an appropriate attachment state of the vehicle antenna to the vehicle body panel even if the nut is loosened in the attachment of the vehicle antenna.

  The vehicle antenna mounting structure of the present invention projects from the lower end of the vehicle antenna and is inserted into a through hole formed in the vehicle body panel from the outside of the vehicle body panel, and around the bolt from the lower end of the vehicle antenna. It has a claw portion that protrudes along its axial direction and is folded upward at its lower end, and can be locked to the edge of the through-hole by passing through the through-hole by elastic deformation A locking member and a nut, and the claw portion that has passed through the through-hole as the bolt is inserted into the through-hole is plastically deformed by pressing the nut that is screwed into the bolt. The most important feature is that the vehicle antenna is fixed in a state where the vehicle body panel is sandwiched between the lower end of the vehicle antenna and the claw portion.

  The vehicle antenna mounting method of the present invention includes a bolt projecting from the lower end of the vehicle antenna, a projecting arrangement along the axial direction from the lower end of the vehicle antenna around the bolt, and upward at the lower end portion. A locking member having a folded claw portion is inserted into a through-hole formed in the vehicle body panel from the outside of the vehicle body panel, and the locking member is elastically deformed to penetrate the claw portion through the through-hole. A step of elastically contacting the claw part to the edge of the through hole by restoring the shape of the locking member, and temporarily fixing the vehicle antenna to the vehicle body panel; and after the temporary fixing step, A step of screwing a nut from the inside of the panel, plastically deforming the claw portion by pressing the nut, and fixing the vehicle antenna to the vehicle body panel. .

  According to the present invention, since the vehicle antenna is fixed to the vehicle body panel in a state where the vehicle body panel is sandwiched between the lower end of the vehicle antenna and the claw portion of the locking member, even if the nut is loosened, It is possible to maintain an appropriate mounting state of the antenna for the vehicle body panel.

  An embodiment of the present invention will be described with reference to the drawings. The present embodiment is an application example to a vehicle antenna mounting structure in which a vehicle antenna is fixed to a roof panel that is a vehicle body panel.

  FIG. 1 is a longitudinal side view showing the vehicle antenna mounting structure of the present embodiment. As shown in FIG. 1, the vehicular antenna 1 includes an antenna mast 2 as an antenna main body and an antenna base 3 that holds the antenna mast 2 up and down.

  A rubber-made protector member 4 having elasticity is attached to the lower part of the antenna base 3, and the lower surface of the antenna base 3 and the lower part of the side edge are covered with the protector member 4. The lower surface of the protector member 4 abuts on the upper surface of the vehicle roof panel 5. As a result, direct contact between the antenna base 3 and the roof panel 5 is avoided. The roof panel 5 is made of metal, and the surface thereof is painted. Such a vehicular antenna 1 is attached to the roof panel 5 by a vehicular antenna mounting means A having a bolt 10, a nut 20, and a locking member 30 (see FIG. 3). The vehicle antenna mounting means A will be described in detail below.

  2 is a longitudinal side view showing the bolt 10 and its periphery, FIG. 3 is a longitudinal rear view thereof, and FIG. 4 is a bottom view thereof. As shown in FIGS. 1 and 2, a bolt 10 protruding downward is fixed to the lower surface of the antenna base 3. The bolt 10 is a headless bolt and is made of metal. The bolt 10 is inserted into the through hole 4 a formed in the protector member 4 and the through hole 5 a formed in the roof panel 5 from the outside to the inside of the roof panel 5.

  As shown in FIGS. 3 and 4, the bolt 10 is provided with a groove portion 12 formed in the axial direction from the lower end surface. A cable (not shown) of the vehicle antenna 1 is routed in the groove 12, and the wired cable reaches the inside of the roof panel 5 via a wiring port of a washer 22 described later. Further, a pair of groove portions 13 formed in the axial direction from the upper end face is provided on the outer periphery of the bolt 10. These groove portions 13 provide an elastic deformation space of the locking member 30 as will be described later. A nut 20 is screwed onto the bolt 10 from the inside of the roof panel 5.

  As shown in FIG. 1, the nut 20 is provided with a washer 22 on the fastening surface side thereof so as to be rotatable about the axis of the nut 20. This attachment structure is made by a caulking structure, for example. These nuts 20 and washers 22 are made of metal.

  On the fastening surface side of the washer 22, a plurality of grounding protrusions 24 (see FIG. 6) are provided in the circumferential direction. Further, the washer 22 is formed with a wiring port (not shown) through which the cable of the vehicle antenna 1 is wired.

  As shown in FIGS. 2 and 3, a pair of locking members 30 are fixed to the lower surface of the antenna base 3. These locking members 30 are positioned around the bolt 10 so as to surround the bolt 10. Specifically, the locking members 30 are arranged to face each other with the bolt 10 interposed therebetween, and downward from the antenna base 3 along the axial direction of the bolt 10. Protrusively provided. The shape of the pair of locking members 30 is symmetric with respect to the axis of the bolt 10. These locking members 30 are formed of a material having conductivity and elasticity. Specifically, the locking member 30 is formed of, for example, a spring carbon steel strip that is a metal.

  A claw portion 31 that is turned upward is formed at the protruding end of the locking member 30. Specifically, the locking member 30 includes a linear portion 32 that linearly extends from the antenna base 3, and a first bent portion 33 that is formed to be bent obliquely downward in a direction away from the bolt 10 at the lower end portion of the linear portion 32. And a second bent portion 34 that is bent obliquely upward in a direction away from the linear portion 32 at the upper end portion of the first bent portion 33, and a direction closer to the linear portion 32 at the upper end portion of the second bent portion 34. The third bent portion 35 is formed to be bent obliquely upward. The first to third bent portions 33, 34, and 35 constitute the claw portion 31.

  5A and 5B are perspective views showing the claw portion 31 of the locking member 30. FIG. 5A shows a first example, and FIG. 5B shows a second example. Examples of the shape of the tip of the claw portion 31 include a straight edge shape as shown in FIG. 5A and a shape having a plurality of protrusions 36 as shown in FIG. .

  Further, the outer width between the pair of linear portions 32 of the pair of locking members 30 is formed smaller than the diameter of the through hole 5 a of the roof panel 5, and the outer width between the pair of claw portions 31 is equal to that of the roof panel 5. It is formed larger than the diameter of the through hole 5a. The locking member 30 having such a shape can be locked to the edge (hereinafter referred to as a through-hole edge) 5 b of the through hole 5 a in the roof panel 5 by the claw portion 31. Further, the distal end portion of the locking member 30 is located on the upper end side of the bolt 10 with respect to the lower end of the bolt 10.

  Next, a method for attaching the vehicle antenna 1 to the roof panel 5 will be described. FIG. 6 is a longitudinal rear view showing a state in which the nut 20 is tightened.

  First, as shown in FIG. 3, the bolt 10 and the locking member 30 are inserted into the through hole 5 a of the roof panel 5 from the outside of the roof panel 5 and penetrated. At this time, the second bent portion 34 of the claw portion 31 of the locking member 30 comes into contact with the through-hole edge 5 b of the roof panel 5 and is pushed toward the axial center side of the bolt 10. As a result, the pair of locking members 30 are elastically deformed in the contraction width direction. Specifically, the claw portion 31 is elastically deformed in a direction extending in the vertical direction, the entire locking member 30 is bent toward the axis of the bolt 10, and a part of the locking member 30 enters the groove portion 13 of the bolt 10. . Due to this elastic deformation, the claw portions 31 of the pair of locking members 30 pass through the through holes 5 a and reach the inside of the roof panel 5. Then, the locking member 30 returns to its original shape due to its own elasticity, and the protector member 4 of the vehicle antenna 1 abuts against the roof panel 5. In this state, the claw portion 31 comes into elastic contact with the through hole edge 5 b of the roof panel 5. Thus, the vehicle antenna 1 is temporarily fixed to the roof panel 5 by the locking member 30 (temporary fixing function).

  Next, a nut 20 is screwed onto the bolt 10 from the inside of the roof panel 5 to fasten the vehicle antenna 1 to the roof panel 5. During the fastening, the nut 20 comes into contact with the claw portion 31 of the locking member 30 from below and presses the claw portion 31 upward. The upper end of the claw portion 31 pressed upward by the nut 20 is held by the roof panel 5, and the first bent portion 33 and the second bent portion 34 are substantially straight in the horizontal direction as shown in FIG. The third bent portion 35 is further bent in a direction approaching the second bent portion 34 that has become horizontal. That is, the third bent portion 35 is sandwiched between the first and second bent portions 33 and 34 plastically deformed in a substantially straight line and the roof panel 5. In the claw portion 31 after the plastic deformation, the third bent portion 35 functions as a leaf spring that biases the roof panel 5 upward. This leaf spring function is maintained even when the nut 20 is removed from the bolt 10. That is, the claw portion 31 is plastically deformed into a shape in which the third bent portion 35 functions as a leaf spring as described above. In this state, the roof panel 5 is sandwiched between the claw portion 31 and the lower end of the vehicle antenna 1, and the vehicle antenna 1 is fixed to the roof panel 5. Thus, in the present embodiment, the vehicle antenna 1 is fixed to the roof panel 5 together with the bolts 10 and the nuts 20 and the locking member 30.

  Further, when the vehicle antenna 1 is fixed to the roof panel 5, the projection 24 of the washer 22 is applied to the roof panel 5 by the pressure contact force from the nut 20 as the nut 20 is fastened to the bolt 10. The paint is peeled off, bites into and comes into contact with the roof panel 5, and the vehicle antenna 1 is grounded. At this time, when the claw portion 31 of the locking member 30 is deformed by the pressing of the nut 20, the paint applied to the roof panel 5 is peeled off at the front end portion thereof and bites into and contacts the roof panel 5. The vehicle antenna 1 is grounded. As described above, in the present embodiment, the vehicle antenna 1 is grounded by using the washer 22 and the locking member 30.

  As described above, in the present embodiment, the vehicle antenna 1 is fixed to the roof panel 5 by the bolt 10 and the nut 20 and also by the locking member 30. Therefore, even if the nut 20 is loosened with respect to the bolt 10, the vehicle antenna 1 is fixed to the roof panel 5 by the locking member 30, so that the vehicle antenna 1 can be appropriately attached to the roof panel 5. The attached state can be maintained.

  Further, since the fixing of the vehicle antenna 1 to the roof panel 5 by the locking member 30 is performed simultaneously by tightening the bolt 10 to the nut 20, the operator needs to be particularly aware of the fixing work by the locking member 30. There is no work.

  Further, in the present embodiment, the locking member 30 has a temporary fixing function for temporarily fixing the vehicle antenna 1 when the claw portion 31 that has passed through the through hole 5a of the roof panel 5 comes into elastic contact with the through hole edge 5b. Since the vehicle antenna 1 is provided, the work of attaching the vehicle antenna 1 to the roof panel 5 is facilitated.

  Further, in the present embodiment, the locking member 30 has conductivity, and the claw portion 31 that is plastically deformed by the pressing of the nut 20 that is screwed into the bolt 10 scrapes the paint on the surface of the roof panel 5 to remove the roof. By contacting the panel 5, the vehicle antenna 1 can be grounded by the locking member 30. Therefore, even if the nut 20 is loosened with respect to the bolt 10 and the ground for the vehicle antenna 1 by the washer 22 cannot be taken, there is no problem.

  The present invention is not limited to this embodiment, and various other embodiments can be adopted without departing from the gist of the present invention. For example, as the locking member, the opposing locking member 30 has been described as an example, but the locking member 30 may be only one around the bolt 10 or may be three or more. Further, a plurality of locking members 30 may be provided integrally.

It is a vertical side view which shows the antenna mounting structure for vehicles of one embodiment of this invention. It is a vertical side view which shows a volt | bolt and its periphery. FIG. It is the bottom view. It is a perspective view which shows the nail | claw part of a locking member. It is a vertical rear view which shows the state by which the nut was fastened.

Explanation of symbols

1 Vehicle antenna 5 Roof panel (body panel)
5a Through hole 5b Through hole edge 10 Bolt 20 Nut 30 Locking member 31 Claw

Claims (4)

A bolt protruding from the lower end of the vehicle antenna and inserted from the outside of the vehicle body panel into a through hole formed in the vehicle body panel;
The vehicular antenna has a claw portion that protrudes along the axial direction from the lower end of the vehicular antenna and is folded upward at the lower end portion, and the claw portion is elastically deformed so that the claw portion has the through hole. A locking member that can be passed and locked to the edge of the through hole;
A nut screwed into the bolt from the inside of the vehicle body panel;
With
With the insertion of the bolt into the through hole, the claw portion that has passed through the through hole is plastically deformed by the pressing of the nut that is screwed into the bolt, so that the lower end of the vehicle antenna and the claw portion A vehicle antenna mounting structure, wherein the vehicle antenna is fixed in a state where the vehicle body panel is sandwiched.   2. The vehicle according to claim 1, wherein the locking member has a temporary fixing function of temporarily fixing the vehicle antenna by a pawl portion that has passed through the through hole elastically contacting the edge of the through hole. 3. Antenna mounting structure. While the vehicle body panel is made of metal and the surface thereof is coated,
The locking member has conductivity,
3. The vehicle antenna mounting according to claim 1, wherein the claw portion that is plastically deformed by pressing of the nut that is screwed to the bolt is in contact with the vehicle body panel by scraping a paint on a surface of the vehicle body panel. Construction. A bolt projecting from the lower end of the vehicle antenna; and a locking member having a claw portion that projects from the lower end of the vehicle antenna around the bolt along the axial direction and is folded upward at the lower end portion; Is inserted from the outside of the vehicle body panel into a through hole formed in the vehicle body panel, and the locking member is elastically deformed to penetrate the claw portion through the through hole;
Elastically contacting the claw portion to the through-hole edge by restoring the shape of the locking member, and temporarily fixing the vehicle antenna to the vehicle body panel;
After the temporary fixing step, a nut is screwed into the bolt from the inside of the vehicle body panel, the claw portion is plastically deformed by pressing the nut, and the vehicle antenna is fixed to the vehicle body panel;
A vehicle antenna mounting method comprising the steps of:

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