JP4315891B2 - License plate mounting structure - Google Patents

Description

  The present invention relates to an improvement in a mounting structure for attaching a license plate to a vehicle body.

  If the size or the like of the license plate attached to the car body of an automobile differs from country to country, the position of the license plate attachment hole may also differ. If the position of the mounting hole of the license plate is different, the license plate cannot be mounted on the vehicle body unless the position of the mounting hole of the vehicle body is changed accordingly, and the versatility is poor.

Therefore, in Patent Document 1, the following mounting structure is adopted. That is, two types of mounting holes with different intervals are formed in the vehicle body according to whether the interval between the two mounting holes of the license plate is long or short, while two spacers having bolt insertion holes and protrusions are prepared. To do. When installing a license plate with a long mounting hole interval on the vehicle body, insert the protrusion of the spacer into the mounting hole on the inner side of the vehicle body so that the bolt insertion hole corresponds to the mounting hole on the outer side of the vehicle body. Is inserted into the mounting hole of the license plate, the bolt insertion hole of the spacer, and the mounting hole on the outer side of the vehicle body and screwed into a nut disposed on the rear surface side of the vehicle body, thereby attaching the license plate to the vehicle body. On the other hand, when a license plate with a short mounting hole interval is mounted on the vehicle body, the projection of the spacer is inserted into the mounting hole on the outer side of the vehicle body so that the bolt insertion hole corresponds to the mounting hole on the inner side of the vehicle body. Is inserted into the mounting hole of the license plate, the bolt insertion hole of the spacer, and the mounting hole on the inner side of the vehicle body and screwed into a nut disposed on the rear surface side of the vehicle body, thereby attaching the license plate to the vehicle body.
JP 2000-168464 A (3rd and 4th pages, FIGS. 2, 4 and 5)

  However, in said patent document 1, since a spacer is used, a number of parts increases and cost increases, and an assembly man-hour increases and productivity falls. Further, since the mounting hole is opened in the vehicle body, the sealing performance is lowered, rain water, car wash water, etc. enter the vehicle compartment, and the rigidity is also lowered.

  The present invention has been made in view of such points, and the object of the present invention is to easily and inexpensively license plates with different mounting holes with only bolts and nuts without increasing the number of parts such as spacers, It is to be attached to the vehicle body without causing deterioration in sealing performance and rigidity.

  In order to achieve the above object, according to the present invention, on the premise that an inner panel is provided, a nut to which a bolt is screwed is arranged between the inner panel and the outer panel and is moved according to the mounting position. It is characterized by that.

  Specifically, the present invention is directed to a mounting structure in which a license plate is attached to a vehicle body with a plurality of bolts spaced apart from each other, and the following solution is taken.

That is, in the first aspect of the invention, the vehicle body includes an inner panel and an outer panel superposed on the outer side of the inner panel. The inner panel is recessed on the back side of the inner panel and is formed on the back side of the outer panel. A bottomed recessed portion having a substantially oval opening in plan view is integrally formed, and the outer panel has a through hole made of a long hole extending in the vehicle width direction so as to correspond to the opening. is formed, between the inner panel and the outer panel that correspond to the openings and the through-hole, the nut is the engagement consisting of a cylindrical portion and the cylindrical portion the lower end having a female threaded portion and the engagement portion projecting outward with positioning one side of the stop portion between the opening peripheral edge of the recessed portion of the through hole periphery and the inner panel of the outer panel, the plurality of bolts to the side opposite positioned within the opening of the recess Is slidably disposed along a line connecting, on the concave portion of the inner panel, intersecting the sliding direction of the nut, the supporting ribs erected to support the opposite side to the one side of the engaging portion of the nut In a state where the license plate is disposed on the surface of the outer panel, the bolt is inserted into the mounting hole of the license plate and screwed into the female thread portion of the cylindrical portion of the nut , thereby connecting the license plate and the outer panel to the nut. The license plate is attached to the outer panel by being sandwiched between the one side of the locking portion and the head of the bolt .

According to a second aspect of the present invention, in the first aspect of the present invention, the inner panel and the outer panel are joined by an adhesive around the opening of the recessed portion, and the outer panel has a space between the bolt and the license plate. A drain hole for discharging water that has entered the recess through the through hole from the space between the license plate and the outer panel is formed in a portion surrounded by the adhesive.

According to a third aspect of the present invention, in the first aspect of the invention, the inner panel and the outer panel are joined by an adhesive around the opening of the recessed portion, and the inner panel and the outer panel are screwed at the joint location. It is characterized by being fastened with.

  According to the first aspect of the present invention, the license plates having different intervals between the mounting holes can be obtained by simply sliding the nut between the inner panel and the outer panel so as to correspond to the mounting holes of the license plate and screwing the bolts to the nuts. Can be easily attached to the outer panel. Further, the spacer as in Patent Document 1 is not necessary, and the cost can be reduced. Furthermore, the place where the nut is disposed is a bottomed recessed portion of the inner panel and is cut off from the passenger compartment, so that rain water, car wash water, etc. can be prevented from entering the passenger compartment, and the vehicle body Can be ensured.

In addition , according to the first aspect of the present invention, since the non-clamping side (opening side of the recessed portion) of the locking portion of the nut is supported by the support rib, the nut is made to correspond to the mounting hole of the license plate. When the nut is slid between the inner panel and the outer panel, the nut does not fall into the recessed portion, and the nut can be stably slid and supported. Further, the presence of the support rib can increase the rigidity of the recessed portion.

According to the second aspect of the present invention, it is possible to reliably prevent rainwater, car wash water, and the like that have entered the recessed portion through the through hole from between the bolt and the license plate from between the license plate and the outer panel through the drain hole. Can be discharged.

According to the invention which concerns on Claim 3 , since the screw | thread which fastens an inner panel and an outer panel is sealed with an adhesive material, a sealing material is not required separately and the loosening of a screw can be prevented.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 11 shows a back door 1 constituting a part of a car body of an automobile, and a license plate mounting structure according to an embodiment of the present invention is applied to the back door 1. The back door 1 includes a resin inner panel 3 and a resin outer panel 5 polymerized on the outer side of the inner panel 3. An opening 11 is formed in the outer panel 5, and a window glass 13 is attached to the opening 11. In the center of the outer panel 5 in the vehicle width direction, a substantially rectangular license plate housing portion 15 is formed so as to be recessed inside the vehicle body, and two license plates 17 are spaced apart from each other in the vehicle width direction in the license plate housing portion 15. The bolt 19 is attached. As shown in FIGS. 1 and 2, the bolt 19 includes a head portion 19b having a flange portion 19a at the lower end, and a shaft portion 19c integrally extending from the flange portion 19a and having a screw formed on the outer periphery. . In FIG. 11, reference numeral 21 denotes a hinge mounting portion that pivotally supports the back door 1 so as to be able to be opened downward to an upper end edge (not shown) of the opening at the rear of the vehicle body.

As shown in FIGS. 1 to 9, the bottom portion of the inner plate 3 corresponding to the license plate accommodating portion 15 has two bottom recessed portions 25 having a substantially elliptical opening 23 in plan view. The recessed portions 25 are recessed on the back side of the inner panel 3 and the opening 23 is open on the back side of the outer panel 5. A bulging portion 27 is formed at the center of the lower side of each of the concave portions 25, and a sliding direction of a nut 31 described later so that the support rib 29 divides the concave portion 25 in the vehicle width direction at the portion where the bulged portion 27 is formed. It is erected to cross. The support rib 29 is formed so that the nut 31 is inserted into the recessed portion 25 when the nut 31 into which the bolt 19 is screwed is slid between the inner panel 3 and the outer panel 5 so as to correspond to the mounting hole 17a of the license plate 17. This is to support the slide stably so as not to fall. Specifically, as shown in FIG. 10, the nut 31 includes a cylindrical portion 33 having a female screw portion 33 a and a locking portion 35 that protrudes outward from the lower end of the cylindrical portion 33. When the nut 31 is slid to attach the 17, one side of the locking portion 35 is positioned between a peripheral edge of a through hole 53 described later of the outer panel 5 and a peripheral edge of the opening 23 of the recessed portion 25 of the inner panel 3. The nut 31 is supported by the support rib 29 by positioning the opposite side, that is, the side closer to the center of the opening 23 of the locking portion 35 (the non-clamping side) within the opening 23 of the recessed portion 25. Yes. On the outer periphery of the opening 23 of the recessed portion 25, a substantially rectangular annular outer ridge portion 37 and an inner ridge portion 39 are provided at predetermined intervals, and the outer ridge portion 37, the inner ridge portion 39, For example, a urethane-based adhesive 43 is accommodated in the adhesive accommodating area 41, and the inner panel 3 and the outer panel 5 are recessed in the license plate accommodating part 15 so as to have an internal space 45. The adhesive 43 is integrally joined around the 25 openings 23. Further, on both sides in the vehicle width direction between the periphery of the opening 23 of the recessed portion 25 and the inner protrusion 39, a seat surface portion 47 that supports the side opposite to the opening 23 of the locking portion 35 of the nut 31 is formed. (See FIG. 3 and FIG. 4). A recess 41a is formed at an inner end in the vehicle width direction of the adhesive material accommodation area 41, and a boss 49 having a screw hole 49a is integrally formed in the recess 41a. 51 is screwed through the screw insertion hole 5b formed in the recess 5a of the outer panel 5, so that the inner panel 3 and the outer panel 5 are fastened by the screw 51 at the joint portion by the adhesive 43 ( (See FIG. 9). Note that a step 41b is provided in the vicinity of the recess 41a of the adhesive accommodating region 41 (see FIGS. 3, 5 and 9).

On the other hand, the outer panel 5 is formed with through holes 53 each having a long hole extending in the vehicle width direction so as to correspond to the two openings 23 of the inner panel 3 (see FIGS. 6 and 7). The through-hole 53 includes an intermediate hole portion 53a and circular hole portions 53b at both ends of the intermediate hole portion 53a. These circular hole portions 53b correspond to the mounting holes 17a having different intervals between the license plates 17. . Further, the width of the intermediate hole portion 53a is slightly narrower than the diameter of the cylindrical portion 33 of the nut 31, and prevents the nut 31 from falling off before the outer panel 5 is assembled (adhered) to the inner panel 3. However, it may be wider than the diameter of the cylindrical portion 33 of the nut 31. In this case, the nut 31 is placed on the seat surface portion 47 and the support rib 29 before the outer panel 5 is assembled to the inner panel 3. After that, the outer panel 5 may be assembled to the inner panel 3 so that the cylindrical portion 33 of the nut 31 is inserted into the through hole 53 of the outer panel 5. Between the inner panel 3 and the outer panel 5 corresponding to the opening 23 of the inner panel 3 and the through hole 53 of the outer panel 5, the nut 31 is on the line connecting the two bolts 19, that is, the through hole of the outer panel 5. It is arranged so as to be slidable along the longitudinal direction of 53. Specifically, one side of the locking portion 35 is positioned between the peripheral edge of the through hole 53 of the outer panel 5 and the peripheral edge of the opening 23 of the recessed portion 25 of the inner panel 3, and is opposite to the one side, that is, the locking surface. The center side (non-clamping side) of the opening 23 of the portion 35 is positioned within the opening 23 of the recessed portion 25 so as to be slidable along the line connecting the plurality of bolts 19. Yes. On the periphery of the through hole 53 of the outer panel 5, annular protrusions 55 are integrally projected on the back surface side, and the nut 31 is engaged between the both sides of the protrusion 55 in the vehicle width direction and the seat surface portion 47 of the inner panel 3. One side of the stop 35 is positioned. As shown in FIG. 8, a notch step portion 55a is formed at the lower side of the protrusion 55 in the vehicle width direction (sliding direction of the nut 31), and the locking portion 35 of the nut 31 is engaged with the notch step portion 55a. When the bolt 19 is screwed onto the nut 31, the nut 31 is prevented from rotating. In the outer panel 5, an oval drain hole 57 is formed in a portion surrounded by the adhesive 43 around the opening 23 of the recessed portion 25 so as to approach the lower side of the through hole 53 (FIGS. 3 and 6). See), the rain water or the car wash water that has entered the recessed portion 25 through the through hole 53 from between the flange portion 19a of the bolt 19 and the mounting hole 17a of the license plate 17 through the drain hole 57 and the outer panel 5 From between the two, it is discharged to the outside through the license plate accommodating portion 15.

In order to attach the license plate 17 to the outer panel 5, first, the cylindrical portion 33 of the two nuts 31 is placed with the engaging portion 35 of the nut 31 facing down, and the through hole 53 of the outer panel 5 is formed from the back side of the outer panel 5. It press-fits into the intermediate hole 53a, and the nut 31 is attached to the outer panel 5 so as not to drop off. At this time, the locking portion 35 of the nut 31 engages with the notch step portion 55 a of the outer panel 5. Next, the adhesive 43 is applied and accommodated in the adhesive accommodating area 41 of the inner panel 3. Thereafter, the outer panel 5 is superposed on the outer side of the inner panel 3, and the outer panel 5 is joined to the inner panel 3 with an adhesive 43. Thereafter, the screw 51 is screwed into the screw insertion hole 5b of the outer panel 5 and the screw hole 49a of the boss portion 49 on the inner panel 3 side, and the inner panel 3 and the outer panel 5 are fastened. Next, when the interval between the two mounting holes 17a of the license plate 17 to be mounted is long, the nuts 31 are slid toward the seat surface 47 on the outer side in the vehicle width direction as shown in FIG. The nut 31 is positioned between the seat surface portion 47 and the support rib 29 so as to correspond to the mounting hole 17a. At this time, each nut 31 is positioned in the circular hole 53b (the circular hole 53b on the right side in FIG. 6) on the outer side in the vehicle width direction in the through hole 53 of the outer panel 5. On the contrary, when the interval between the two mounting holes 17a of the license plate 17 to be mounted is short, the nuts 31 are slid to the seat surface portion 47 side in the vehicle width direction as shown in FIG. The nut 31 is positioned between the seat surface portion 47 and the support rib 29 so as to correspond to the mounting hole 17a. At this time, each nut 31 is positioned in the circular hole portion 53b (the circular hole portion 53b on the left side in FIG. 6) on the inner side in the vehicle width direction in the through hole 53 of the outer panel 5. Thereafter, in a state where the license plate 17 is disposed on the surface of the license plate accommodating portion 15 of the outer panel 5, the two bolts 19 are inserted into the two mounting holes 17 a of the license plate 17, respectively . The license plate 17 and the outer panel 5 are sandwiched between the outer side of the opening 23 of the engaging portion 35 of the nut 31 and the flange portion 19a of the bolt 19 by screwing the female plate portion 33a. Attach to 5.

  Thus, in this embodiment, it is only necessary to slide the nut 31 between the inner panel 3 and the outer panel 5 and screw the bolt 19 into the nut 31 in correspondence with the mounting hole 17a of the license plate 17. The license plates 17 having different mounting hole 17a intervals can be attached to the outer panel 5 very easily.

  Further, in this embodiment, the spacer as in Patent Document 1 is unnecessary and the cost can be reduced.

  Furthermore, in this embodiment, the place where the nut 31 is disposed is the bottomed recessed portion 25 of the inner panel 3 and is cut off from the passenger compartment, so that rain water, car wash water, etc. enter the passenger compartment. Can be prevented, and the rigidity of the vehicle body can be ensured.

  In addition, in this embodiment, when the nut 31 is slid between the inner panel 3 and the outer panel 5 so as to correspond to the mounting hole 17 a of the license plate 17, the non-clamping side of the locking portion 35 of the nut 31. Since the (non-locking side) is supported by the support rib 29, the nut 31 does not fall into the recessed portion 25, and the nut 31 can be stably supported by sliding. Further, the presence of the support rib 29 can increase the rigidity of the recessed portion 25.

  Further, in this embodiment, rain water, car wash water or the like that has entered the recess 25 through the through hole 53 from between the bolt 19 and the license plate 17 is passed between the license plate 17 and the outer panel 5 through the drain hole 57. It can be surely discharged to the outside via the license plate housing part 15 from the inside. And since the drain hole 57 is covered with the license plate 17, it cannot be seen from the outside, and the appearance is not deteriorated.

  Furthermore, in this embodiment, the screws 51 that fasten the inner panel 3 and the outer panel 5 are sealed with the adhesive 43, so that no separate sealing material is required and the screws 51 can be prevented from loosening. .

  In the above embodiment, the license plate 17 is attached to the outer panel 5 with the two bolts 19, but may be attached with three or more bolts 19. Further, although a plurality of mounting bolts 19 for the license plate 17 are arranged in the vehicle width direction, they may be arranged in the vertical direction. Further, the mounting bolt 19 of the license plate 17 forms a flange 19a on the head 19b, but this flange 19a is not always necessary. Further, the present invention can be applied not only when the license plate 17 is attached to the rear part of the vehicle body but also when it is attached to the front part of the vehicle body.

  The present invention is useful as an attachment structure for attaching license plates having different attachment intervals to a vehicle body.

It is sectional drawing in the AA of FIG. 11 when the distance between volt | bolts is long. It is sectional drawing in the AA of FIG. 11 when the distance between volt | bolts is short. It is a top view of one attachment location of an inner panel. It is sectional drawing in the IV-IV line of FIG. It is sectional drawing in the VV line | wire of FIG. It is a top view of one attachment location of an outer panel. It is sectional drawing in the VII-VII line of FIG. It is sectional drawing corresponded in the VIII-VIII line of FIG. FIG. 5 is a cross-sectional view corresponding to the line VV in FIG. 3. A nut is shown, (a) is a top view, (b) is sectional drawing in the BB line of (a). It is a perspective view of a back door.

1 Back door (body)
3 inner panel 5 outer panel 17 license plate 17a mounting hole 19 bolt 19a flange 19b head 23 opening 25 recessed part 29 support rib 31 nut 35 locking part 43 adhesive 51 screw 53 through hole 57 drain hole

Claims (3)

A mounting structure for attaching the license plate to the vehicle body with a plurality of bolts spaced apart from each other,
The vehicle body includes an inner panel and an outer panel superposed on the outer side of the inner panel.
The inner panel is integrally formed with a bottomed recessed portion having a substantially oval opening in a plan view that is recessed on the back side of the inner panel and opened on the back side of the outer panel.
The outer panel is formed with a through hole including a long hole extending in the vehicle width direction so as to correspond to the opening.
Between the inner panel and the outer panel that correspond to the openings and the through-hole, the nut consisting of a cylindrical portion and the cylindrical portion the lower end having a female threaded portion and the engaging portion projecting outwards of the locking portion One side is positioned between the periphery of the through hole of the outer panel and the periphery of the opening of the recessed portion of the inner panel, and the side opposite to the one side is positioned in the opening of the recessed portion and along the line connecting the plurality of bolts Slidably arranged,
In the recessed portion of the inner panel, a support rib is provided so as to cross the sliding direction of the nut and support the opposite side of the locking portion of the nut.
With the license plate disposed on the surface of the outer panel, the bolt is inserted into the mounting hole of the license plate and screwed into the female thread portion of the cylindrical portion of the nut , whereby the license plate and the outer panel are engaged with the nut. A license plate mounting structure characterized in that the license plate is mounted on the outer panel by being sandwiched between the one side of the stopper and the head of the bolt . In the license plate mounting structure according to claim 1,
The inner panel and the outer panel are joined by an adhesive around the opening of the recessed portion,
In the outer panel, a drain hole is formed in a portion surrounded by the adhesive material for discharging water that has entered the recess through the through hole from between the bolt and the license plate to the outside from between the license plate and the outer panel. A structure for mounting a license plate, characterized in that In the license plate mounting structure according to claim 1,
The inner panel and the outer panel are joined by an adhesive around the opening of the recessed portion,
An installation structure of a license plate, wherein an inner panel and an outer panel are fastened with screws at the joint portion.

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