JPS624044Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mounting structure for mounting a radiator grill of a vehicle to a body part.

Generally, as illustrated in FIG.
A mounting part 2 is provided in the body part 1, and a screw or nut is used between this part and the mounting hole 3 of the body part 1, or a plastic part is secured with a snap to both the mounting part 2 and the mounting hole 3. This is done depending on the use of fuasuna.

In recent years, the latter method has been preferred from the viewpoint of workability, but existing mounting structures using this type of fastener have poor tolerance for manufacturing tolerances of the radiator grille to be mounted, and However, the stable holding of the radiator grille was not satisfactory, and there were drawbacks such as the size and strength of the fastener itself being greatly restricted depending on the part to which it was attached.

This proposal was basically made in consideration of these points, and the mounting part of the radiator grill, the upper and lower parts,
It has a tight fixed relationship with the fastener not only in the left and right, front and rear directions, but also in the direction of rotational prying force.
The design of the radiator grill allows the fasteners to actively generate a force to fix the attached part, while increasing the tolerance for manufacturing tolerances, and in which the attached part does not significantly limit the dimensions related to the strength of the fastener. The purpose is to provide a mounting structure.

As illustrated in FIG. 1, the mounting direction of the radiator grille G and the body part 1 is two cases: one is in the front-rear direction with the mounting hole 3 facing forward, and the other is in the front-rear direction with the mounting hole 3 facing upward. There are cases where this is done in the vertical direction, and the direction in which the attached part 2 faces is different in each case, but the mounting structure is basically the same, and the present invention can be applied to both cases. However, for convenience of explanation, in the embodiments of the present invention shown in FIGS. Further, generally, the radiator grille G is often made of plastic, and the attached portion 2 is also often integrally molded. However, this is not directly stipulated by the present invention, and as a result, it is sufficient if the radiator grille G is provided with the attached portion 2 according to the present invention. Furthermore, as illustrated in Fig. 1, the radiator grille and the body part are attached at multiple locations in the circumferential direction of the grille. Pick a place and explain it.

First, a first embodiment of the present invention shown in FIGS. 2 to 6 will be described. In this case, the structure of the attached part 2 and the plastic fastener 4 is as follows.

Although not shown in the drawings, as mentioned earlier, the attached part 2 is provided integrally with the radiator grille or is fixed separately, and extends in the mounting direction (assumed to be the front-rear direction) X-X. This plate-like part 5 has side surfaces 6, 6 on both sides, and a locking stage in the middle in the length direction, into which a locking claw of a fastener described later is locked. A section 7 is provided,
In this embodiment, the locking step portion 7 is formed as the edge of a through hole 8 bored in the vertical direction. The mounting part 2 provided on the radiator/grill side is as follows:
As described above, the basic configuration can be satisfied with the presence of both side surfaces 6, 6 and the locking step portion 7, but in this case, as a more desirable consideration, both side surfaces 6, 6 may be left and the surface of the plate-like portion 5 is A pair of side projecting pieces 9, 9 are provided in the length direction so as to have a step, and descending side pieces 10, 10 are raised upward from the side ends thereof. These effects will become clear from the explanation below.

The fastener 4 is integrally molded entirely of plastic, and has first and second engaging parts 12 and 13 that sandwich the base plate part 11 and face in the rearward direction. The first engaging part 12 engages with the attached part 2, so it has a unique configuration of this invention, and its basic components are roughly divided into an elastic locking arm 14 and a pair of clamping members 15. , 15. The elastic locking arm 14 extends from one surface of the base plate portion 11, and is provided with a locking pawl 16 on the back surface near the tip thereof to be reversely locked to the locking step portion 7 of the attached portion 2 of the grill. The distance between the locking pawl 16 and the surface of the base plate portion 11 is approximately equal to the distance between the engagement step portion 7 of the attached portion 2 and the distal end surface 17.

On the other hand, the pair of clamping members 15, 15
Similarly, it extends from the top and ends at a free end, but the distance between the inner surfaces thereof is adapted to that between the two side surfaces 6, 6 of the member 2 to be attached. In this embodiment, in addition to this, a surface member 19 that is in contact with the back surface 18 of the attached part 2 is provided, and the clamping members 15, 15
It is shaped like it is folded inward at a right angle from the lower edge. Originally, this surface part 19 may be continuous in the left-right direction (Y-Y direction), but since it is preferable to cut out the upper locking arm in half with a mold, the lower locking arm is The portions are slits, so that it looks as if one is attached to each clamping member 15, 15.

When this surface portion 19 is provided, the upper locking arm 14
The distance is set to be equal to the thickness of the plate-like portion 5 of the attached part 2, but slightly shorter than this.

Therefore, the locking pawl 16 is configured to bite into this distance.

With this configuration, the fastener 4 and the attached portion 2 are engaged by the following actions.

The inner surfaces of both clamping members 15, 15 are attached to the member to be attached 2.
, and the surface part 19 to the back surface 1.
8 and push the fastener 4 relative to the member to be attached 2, the locking pawl 16 located below the surface of the plate-shaped portion 5 engages the tip end surface of the member to be attached 2 as described above. , the locking arm 14 itself is bent upward as it is pushed relatively upward. In order to ensure this behavior, it is preferable to create a taper 20 from the tip on the back surface of the locking arm 14 that reaches the locking claw 16.

If the relative pushing of the fastener 4 is continued in this state, the inner surfaces of both clamping members 15, 15 will touch both side surfaces 6, 6 of the member to be attached to surface portion 19.
Similarly, the locking claw 16 slides forward on the back surface 18 and the locking claw 16 guides itself and slides on the surface of the attached member, and eventually the locking claw 16 reaches the engagement step 7 formed by the through hole 8. The locking arm 14 is restored by its own elasticity, and is irreversibly locked against the stepped portion 7. At this time, the substrate portion 11 comes into contact with the distal end surface 17 of the attached portion 2 due to the dimensional relationship described above.

In this engaged state, a cross section is taken at the position of the line in FIG. 2, and as can be seen in FIG. become. Therefore, by increasing the rigidity of both clamping members 15, 15 in terms of design, it becomes possible to better resist rattling of the attached portion 2 in the left and right Y-Y directions. A method for increasing the rigidity is, for example, by adding thick ribs 21 in the length direction on the back surfaces of the surface portions 19, 19 that are continuous in the direction perpendicular to both the clamping members 15, 15.
21 or by increasing the thickness of each clamping member 15 in the left-right direction.

What I would like to note here is that in this case, unlike conventional fasteners in which the entire fastener is placed inside the part to be attached, both clamping members 15, 15 are protruding outward, so essentially the part to be attached is There is no reason to limit the thickness of the clamping members, and therefore, if necessary, the strength of the clamping members against external forces can be increased to a satisfactory level.

However, if a certain level of strength is secured, it may be better to leave some elasticity in both clamping members 15, 15 to allow them to bend outward. For example, if the distance between the side surfaces 6, 6 deviates from the design value due to manufacturing tolerances of the attached part 2, this can be well accommodated. In any case, in the present invention, since the fastener is relatively large in size and embraces the attached part, it has the effect of increasing the lateral holding force.

Next, the locking pawl 16 and the base plate 11 can sufficiently restrict the swinging of the attached portion 2 in the longitudinal direction XX.

Regarding the last vertical Z-Z direction, the attached part 2
The surface portion 19 and the locking arm 14 made on the back surface 18 of
Rigidity is obtained by sandwiching the plate-like portion 5 with the back surface of the holder. However, as is clear from the previous installation work, the locking arm requires elasticity sufficient to allow the locking claw 16 to rest on the surface of the plate-shaped portion 5, In consideration of the rigidity required for holding, the required rigidity may be determined, for example, by erecting ribs 22 on the surface of the locking arm 14 or by appropriately arranging the wall thickness. In addition, as shown in the figure, if there are projecting pieces 9, 9 on both sides of the plate-like part 5 in the attached part 2, the dimensions should be such that the upper surfaces 23 of both clamping members come into contact with the back surface 18' of the projecting pieces 9, 9. As a result, holding force in the Z-Z direction can be obtained between the locking arm and the locking arm even without the previous surface portion 19.

In other words, the holding force in the Z-Z direction is applied to the back surface 18 of the attached member facing the locking arm 14.
It can be obtained as long as there are surface portions 19 and/or 23 that abut against the surfaces 19 and 18'.

Furthermore, in the present invention, resilient pieces 24, 24 are provided on both sides of the base plate 11 that abuts the tip end surface 17 of the attached part 2 during engagement, and the elastic pieces 24, 24 extend diagonally forward. For example, it faces or lightly contacts the tip end surface 17' of the descending side pieces 10, 10.

This pattern is shown in FIG. 3 with the attached part 2 indicated by a virtual line.
The repulsive force of the resilient pieces 24 can also effectively resist the prying force in the rotational direction indicated by the -R direction.

In the illustrated embodiment, as a further desirable consideration, in order to facilitate the above-mentioned fastening operation of the fastener 4, the attached portion 2 is formed in a slightly tapered shape as a whole, so that the fastener 4 can be attached easily. On the contrary, the correspondingly contacting portions of the first engaging portion 12 are tapered to open outward. This taper is applied in the horizontal and vertical directions, and therefore, the inner surfaces of both clamping members 15, 15 are also tapered as shown at an angle α ₁ (FIG. 3). Surface portions 19 and 23 also have an angle α
₂ (Fig. 4). These tapered surfaces can be understood by also referring to the front view of FIG. 5.

Of course, on the contrary, the inner surfaces of both clamping members 15, 15 are tapered so that they are clamped closer to each other as they go forward, and during work, both side surfaces 6, 6 of the attached part 2 are shaped like these. Even if it is pushed in with some force between the two clamping members 15, 15, the main purpose may be to improve the clamping pressure by the clamping members 15, 15 after installation.

Furthermore, as in the second embodiment shown in FIGS. 7 and 8, the entrance opening of the fastener 4, that is, both clamping members
5, 15, the locking arm 14, and the surface portion 19, only the entrance 25 of the space is tapered outward,
The portion in the direction approaching the substrate portion 11 may be formed in a straight line. In this case, although the attached portion 2 is not shown, it is obvious that each surface may remain parallel and linear. Particularly, in the embodiments shown in the seventh and eighth figures, the tips 15', 15' of both the clamping members 15, 15 are tapered greatly outward, and the surface portion 19 perpendicular thereto is tapered outward.
The distal end 19' of the locking arm 14 is also oriented largely downward, and the distal end 14' of the locking arm 14 is also inclined diagonally upward to form a relatively long slope to open the entrance particularly widely.

In this second embodiment as well, the other components are similar to those in the first embodiment, although some of them are slightly different in form, so the same symbols are used in the drawings, and , the fastener 4 of this second embodiment
The action of fastening the first fastening part 12 to the attached part 2 can also be applied to the first embodiment described in detail above.

The work is completed by snapping the fastener 4 attached to the attachment target part 2 to the mounting hole 3 of the vehicle body part 1 together with the radiator grille, but the second attachment is necessary for this purpose. The part 13 itself is not directly defined by the present invention, and the structure of a known fastener or plastic rivet may be used as is. That is, since the known plastic rivet consists of a head and an elastic locking member depending from the head, this head can be used as the base plate 11 of the fastener of the present invention.

The illustrated case utilizes a modification of the anchor type among known elastic locking members of this type that are categorized and named as anchor type, canoe type, hook type, etc. Briefly, the base plate 11 is used as a head, and there is provided a trunk 26 that hangs down from the head, that is, protrudes forward in this case, and that the trunk 26 bends from above and below toward the base plate 11 and expands outward. A pair of elastic locking pieces 27, 27 are provided which extend through the protrusion 28 and end at a free end to form the elastic locking member 29.
It constitutes. The trunk 26 is hollow and has a rectangular cross section, and the mounting hole 3 of the body portion 1 into which it is inserted is also a rectangular hole.

Therefore, when the tip of the trunk is inserted into the mounting hole 3, the elastic locking pieces 27, 27 are bent inward at the edge of the hole and advance, and when the overhanging parts 28, 28 pass through the hole, Due to the elasticity of the locking piece 27, it is restored like a snap and is locked between the protruding portion 28 of the lever and the base plate portion 11 so as to sandwich the front and back edges of the hole. This pattern is illustrated in FIGS. 3 and 4 for the fastener 4 of the first embodiment, but of course it is exactly the same for the second fastener 4 shown in FIGS. 7 and 8. however,
In the fastener of the first embodiment, the pair of elastic locking pieces 27, 27 are shifted to the left and right when viewed from the top and bottom so that a simple two-piece mold can be used when molding the whole as a single piece. On the other hand, in the fastener 4 according to the second embodiment, the length of the projecting portion 28 in the left-right direction is increased to stabilize the engagement with the hole 3, even though the mold division is somewhat troublesome. Both 27 and 27 are the same size.

Furthermore, as shown in the first diagram, the attached parts 2 are arranged in parallel at intervals in the Y-Y direction. It is preferable that the mounting holes 3 of the body portion 1 be elongated in the direction in which they are arranged side by side, so as to be able to absorb this amount. Of course, the reason why the main body 26 and the mounting hole 3 are rectangular is to prevent rotation, but since the fastener of the present invention has extremely stable engagement with the attached part, there are cases where a rotation prevention is not particularly required. Naturally, the trunk 26 may have a circular cross section. Alternatively, the fastener 4 may be attached to the body part 1 first, and then the attached part 2 may be attached to the fastener, or the radiator grille may be mounted perpendicular to the body part as described above. If you are installing it in a
Even if the direction is read as the left-right direction, the above explanation can be applied as is.

As detailed above, according to this proposal, the radiator
It is possible to provide a mounting structure that can stably hold the mounted portion provided on the grill with sufficient strength and has excellent tolerance for manufacturing tolerances.

[Brief explanation of the drawing]

Figure 1 is a schematic perspective view of the application area, Figure 2
The figure is an exploded perspective view of the first embodiment of the present invention, Figures 3 to 5 are a plan view, side view, and front view of the fastener of the first embodiment, and Figure 6 is along the line of Figure 1. 7 and 8 are a plan view and a side view, respectively, of the fastener of the second embodiment. In the diagram, 1 is the vehicle body part, 2 is the radiator
The mounted part of the grill, 3 is the mounting hole, 4 is the fastener,
Reference numeral 6 denotes a side surface of the attached part, 7 a locking step, 11 a fastener base plate, 12 a first locking part, 13 a second locking part, 14 an elastic locking arm, and 15 a A clamping member, 16 a locking pawl, 17 a tip end surface of the attached part, 1
8 and 18' are also on the back side, 19 and 23 are on the front side, and 2
4 is an elastic piece, and 29 is an elastic locking member.

Claims (1)

[Scope of Claim for Utility Model Registration] A first locking portion that locks onto a mounting portion provided on the radiator grill, and a second locking portion that snaps into a mounting hole drilled in the vehicle body. The attached part has both side surfaces and a locking step part in the middle of the length; The first locking part of the fastener has , a pair of clamping members that extend from the base plate part and clamp both side surfaces of the attached part from both sides, and an elastic member that also extends from the base base part and has locking claws that reversely lock onto the locking step part. The base plate has a locking arm and a surface portion that contacts the surface of the attached portion on a side opposite to the surface facing the locking arm; the base plate portion has a free end facing the distal end surface of the attached portion. A mounting structure for a radiator grill, characterized in that it has an elastic piece that lightly contacts the radiator grille.