JP2002347058A - Filling implement of hollow panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fit a holder body by surely engaging engagement clips with fitting holes of a hollow panel, even when the plate thickness dimension of the hollow panel is different to be large or small. SOLUTION: The present filling implement has the holder body 30 which supports a foamable base material 20, and the engagement clips 40 which engage with the fitting holes 7 of the hollow panel 1 to engage the holder body 30 therewith. Each engagement clip 40 has an engagement pawl 50 formed to be inserted into the fitting hole 7 and to engage therewith. An insertion guide 51 to be inserted along an opening edge 8 on one side of the fitting hole 7 and an engagement part 52 continuous to the insertion guide 51 are formed respectively on one side of the engagement pawl 50. On the other side of the engagement pawl 50, there are formed an insertion part 53 to be inserted along an opening edge 9 on the other side of the fitting hole 7, and a pressing part 54 which is continuous to the insertion part 53 and inserted in contact with the opening edge 9 on the other side of the fitting hole 7, thereby changing the shape of the engagement pawl 50 in the direction of the opening edge 8 on one side of the fitting hole 7, and making the engagement part 52 engage with the opening edge 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filler for a hollow panel, and more particularly to a hollow panel (for example, a pillar, a rocker panel, and a roof side panel) of a vehicle body having a hollow box-shaped closed cross section formed by a plurality of panels. etc)
The present invention relates to a hollow panel filler for filling a hollow chamber of a hollow panel as described above to block the hollow chamber or to reinforce the hollow panel.

[0002]

2. Description of the Related Art In a filler of this type, as shown in FIG.
There is known a structure having a locking clip 140 that engages with the mounting hole 107 of the hollow panel 101 to mount the holder body 130. In the filling device having such a structure, the locking clip 140 includes a leg 141 protruding from a seat 133 provided on one side of the holder body 130,
And a pair of locking claws 150 formed in a folded shape from right to left from the tip of the leg portion 141. Further, at the distal ends of the pair of locking claws 150, an engagement surface that engages with the outer opening edge of the mounting hole 107 of the hollow panel 101 when the seat 133 is in contact with the inner surface of the hollow panel 101. Locking portion 151 is formed. The locking portion 151 of the locking clip 140 is formed corresponding to the thickness of the hollow panel 101. Then, the locking clip 1 is inserted through the inner opening of the mounting hole 107 of the hollow panel 101 until the seat 133 contacts the inner surface of the hollow panel 101.
40 is inserted, a pair of locking claws 150
Engages with the outer opening edge of the mounting hole 107,
The holder body 130 is attached by the engaging force.

[0003]

In the above-mentioned conventional filling device, when the thickness of the hollow panel 101 is different, for example, when the thickness of the hollow panel 101 is small, the locking clip 140 is locked. An engagement surface of the portion 151;
A gap is formed between the hollow panel 101 and the outer opening edge of the mounting hole 107, and the gap causes the locking clip 140 to rattle, and the filling tool to rattle.
When the thickness of the hollow panel 101 is large, the engagement surface of the locking portion 151 of the locking clip 140 is
01 cannot be engaged with the outer opening edge of the mounting hole 107,
The locking clip 140 comes out of the mounting hole 107, and the filling tool comes off. For this reason, when the thickness of the hollow panel 101 is different, the holder body 130 having the corresponding locking clip 140 must be formed, and the manufacturing cost of the holder body 130 increases.
There was a problem.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to securely engage a retaining clip with a mounting hole of a hollow panel to attach a holder body even when the thickness of the hollow panel is different. It is an object of the present invention to provide a filler for a hollow panel.

[0005]

According to a first aspect of the present invention, there is provided a filler for a hollow panel according to the present invention.
The gist is the configuration as described in. Therefore, when attaching the holder body supporting the foamable base material to the hollow panel via the retaining clip, the retaining claw of the retaining clip is inserted into the mounting hole of the hollow panel. Then, first, the insertion guide portion of the locking claw of the locking clip is inserted along one opening edge of the mounting hole. After the insertion guide of the locking claw is inserted until it passes through the opening edge on one side of the mounting hole,
Subsequently, the pressing portion of the locking claw is inserted in contact with the other opening edge of the mounting hole. Then, the locking claw is deformed toward one opening edge of the mounting hole, and the engaging portion of the locking claw is pressed and engaged with the one opening edge of the mounting hole. Thereby, the holder body is securely attached to the attachment hole of the hollow panel by the retaining clip. In this way, the locking claw is deformed toward one opening edge of the mounting hole by the pressing portion of the locking claw, and the engaging portion of the locking claw is pressed against one opening edge of the mounting hole. Can be engaged. Therefore, even when the thickness of the hollow panel is different in size, it can be used.

A filler for a hollow panel according to a second aspect of the present invention has a gist as described in claim 2, and the pressing portion of the locking claw is provided at the other opening edge of the mounting hole. The locking claw is formed on an inclined surface that is sequentially deformed toward one opening edge of the mounting hole by being in contact with and inserted into the mounting hole. Therefore, the locking claw is sequentially deformed toward one opening edge of the mounting hole by the inclined surface of the pressing portion of the locking claw, and the engaging portion of the locking claw is securely positioned at one opening edge of the mounting hole. It is possible to engage with it.

[0007] A filler for a hollow panel according to a third aspect of the present invention comprises:
According to another aspect of the present invention, the locking clip has a pair of locking claws corresponding to the pair of mounting holes formed in the hollow panel. Therefore,
The pair of locking claws can be engaged with the pair of mounting holes of the hollow panel, respectively, and the holder body can be more firmly mounted on the hollow panel, and it is effective in preventing disengagement and displacement. Is big.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. In FIG. 6, a hollow panel 1 (for example, a center pillar) constituting a part of a vehicle body
The inner panel 2 and the outer panel 4 are formed in a hollow box-shaped closed cross section by spot welding the flanges 3 and 5 of each other. The inner panel 2 has a pair of rectangular mounting holes 7 for mounting the filler 10. The filling device 10 filled in the hollow chamber 6 of the hollow panel 1 includes a foamable base material 20 and a holder body 30.

The foamable base material 20 has a synthetic resin material (for example, an epoxy-based resin material) which has an adhesive property to a metal surface or a painted surface, and particularly has an excellent adhesiveness to a metal surface. And a foaming agent, a reinforcing agent, and the like are mixed therein, and heat (for example, 110 ° C. to 1
(A temperature of about 90 ° C.), and is formed from a foamable material that becomes a closed-cell foam. The foamable base material 20 is formed into a flat plate having a required shape and thickness by injection molding or the like. Further, as shown in FIG. 1, a holder body 3 described in detail below is provided at a predetermined position of the foamable base material 20.
A cutout portion is provided at a position corresponding to the connection piece 32 of the pair of support plates 31 of zero.

As shown in FIG. 1 and FIG.
Is a pair of support plates 31 and a required number of connecting pieces 3 for connecting the pair of support plates 31 at a predetermined interval.
2 are provided integrally. Also, a pair of support plates 3
1 is to form a flat plate in a direction perpendicular to the longitudinal direction of the hollow chamber 6 and to support both side surfaces of the foamable base material 20, respectively.
0 is regulated, and the foaming of the foamable base material 20 is promoted toward the inner peripheral wall surface of the hollow chamber 6. The holder body 30 is provided with a locking clip 40 over a part of the peripheral edge of the pair of support plates 31. In this embodiment, the holder body 30 and the locking clip 4
0 is a hard synthetic resin material having heat resistance (for example, 66
Nylon) and are integrally formed by injection molding or the like.

As shown in FIG. 1 and FIG.
Reference numeral 0 denotes a seat 33 protruding from one side of the peripheral edge of the pair of support plates 31, and extends integrally with the seat 33 at a predetermined interval and is inserted into the pair of mounting holes 7 to engage. And a locking body 41 having a pair of locking claws 50. The locking body 41 includes a leg 42 integrally extending from the seat 33 of the pair of support plates 31, and the leg 42
And a locking claw 50 integrally extending from the connecting piece 43 toward the support plate 31.

As shown in FIGS. 3 to 5, an insertion guide portion 51 is formed on one side of the locking claw 50 from its root (the side of the connecting piece 43) to a substantially central portion. . In this embodiment, when the insertion guide portion 51 is inserted along one opening edge 8 of the mounting hole 7, the locking claw 50 is attached to the mounting hole 7.
Is formed on an inclined surface that is deformed (elastically deformed) toward the other opening edge 9. An engaging portion 52 is formed on one side of the locking claw 50 from the end of the insertion guide portion 51 to the free end of the locking claw 50. The engagement portion 52 can be engaged with the opening edge 8 on one side of the mounting hole 7 so as to be tight, and is inclined to the opposite side to the insertion guide portion 51. One side surface of the locking claw 50 has a substantially U shape.

On the other side of the locking claw 50, an upright wall-shaped insertion portion 53 is formed to be inserted along the other side opening edge 9 of the mounting hole 7 from the base portion to a position beyond the middle portion. ing. The other side of the locking claw 50 has an insertion portion 53.
From the end of the locking claw 50 to the free end of the locking claw 50.
Are formed. The pressing portion 54 is inserted in contact with the other opening edge 9 of the mounting hole 7 to sequentially deform the locking claw 50 toward one opening edge 8 of the mounting hole 7 (elastic deformation).
It is formed on an inclined surface. The engaging portion 52 of the locking claw 50 is engaged by the pressing portion 54 in such a manner that the engaging portion 52 of the mounting hole 7 is tightly engaged with the opening edge 8 on one side. In addition,
The width between the engaging portion 52 on one side of the locking claw 50 and the pressing portion 54 on the other side is set appropriately larger than the hole width of the mounting hole 7.

The filling device 10 according to this embodiment is configured as described above. Therefore, as shown in FIG.
When loading the filling device 10 into the hollow chamber 6 of the hollow panel 1,
Before spot welding the inner panel 2 and the outer panel 4 constituting the hollow panel 1 at their mutual flanges 3, 5, the filler 10 is attached to a pair of mounting holes 7 of the inner panel 2 in advance. Thereafter, the inner panel 2 and the outer panel 4 are spot-welded at their mutual flanges 3 and 5 to form the hollow panel 1 having a hollow box-shaped closed cross section. Here, external heating, for example,
By the external heating at the time of baking coating of the vehicle body having the hollow panel 1, the foamable base material 20 of the holder body 30 foams to form a foam 25 (see FIG. 7). And
The hollow panel 1 is reliably blocked by the foam 25 based on the foaming of the foamable base material 20, so that sound insulation and vibration suppression are achieved, or the hollow panel 1 is reinforced.

When the filler 10 is mounted in the pair of mounting holes 7 of the inner panel 2, the pair of locking members 41 of the locking clip 40 are inserted into the pair of mounting holes 7 of the inner panel 2. Then, first, as shown in FIG. 3, the inclined surface of the insertion guide portion 51 of the locking claw 50 is inserted along one opening edge 8 of the mounting hole 7. At this time, the inclined surface of the insertion guide portion 51 of the locking claw 50 is inserted in contact with the one opening edge 8 of the mounting hole 7 so that the locking claw 50 faces the other opening edge 9 of the mounting hole 7. To deform (elastic deformation). For this reason, the locking claw 50 is easily inserted into the mounting hole 7.

As shown in FIG. 4, after the inclined surface of the insertion guide portion 51 of the locking claw 50 is inserted to a position where it passes through the opening edge 8 on one side of the mounting hole 7, the locking claw 50 is subsequently continued. The inclined surface of the pressing portion 54 is inserted in contact with the other opening edge 9 of the mounting hole 7. Thereby, the locking claw 50 is sequentially deformed (elastically deformed) toward the one opening edge 8 of the mounting hole 7. Then, as shown in FIG. 5, the pair of locking members 41 is inserted to the insertion end position where the seat portion 33 of the locking clip 40 abuts on the inner surface of the inner panel 2, thereby engaging the locking claw 50. The portion 52 is pressed against the one opening edge 8 of the mounting hole 7 and firmly engages. As a result, the holder body 30 and eventually the filler 10 are firmly attached to the pair of attachment holes 7 of the inner panel 2 at the retaining clips 40 thereof.

As described above, the pressing portion 54 of the locking claw 50
The locking claw 50 is sequentially deformed (elastically deformed) toward the opening edge 8 on one side of the mounting hole 7 by the inclined surface of the locking claw 50.
Of the mounting hole 7 is pressed against the opening edge 8 on one side of the mounting hole 7 so as to be securely engaged. For this reason, as shown in FIG. 8, for example, even when the thickness of the inner panel 2 is large, the engaging portion 52 of the locking claw 50 is pressed against the opening edge 8 on one side of the mounting hole 7 to ensure the reliability. Can be engaged. Also, as shown in FIG. 9, even when the thickness of the inner panel 2 is small, the engaging portion 52 of the locking claw 50 is pressed against the one opening edge 8 of the mounting hole 7 to be securely engaged. be able to. As a result, even when the thickness of the inner panel 2 differs in size, the locking clip 40 and the holder 3
0, and thus the entire filling tool 10 can be used in common, and the cost can be reduced.

The present invention is not limited to the above embodiment. For example, in the above embodiment,
Although a pair of mounting holes 7 are formed in a flat panel portion of the hollow panel 1 (the inner panel 2), as shown in FIGS. 10 and 11, the panel portion 2a between the pair of mounting holes 7 faces outward. The opening edge 8 on one side and the opening edge 9 on the other side of the attachment hole 7 may be formed in a stepped shape. In this case, the contact position of the pressing portion 54 of the locking claw 50 with the other opening edge 9 of the mounting hole 7 is determined by the engagement portion 52 of the locking claw 50 engaging with the one opening edge 8 of the mounting hole 7. It is displaced to the base side from the engagement position. For this reason, the engaging portion 52 of the locking claw 50 can be efficiently pressed by the pressing portion 54 of the locking claw 50 to the one-side opening edge 8 of the mounting hole 7 so as to be more securely engaged. Great effect for prevention.

Further, as shown in FIGS. 12 and 13, a bent edge 9a may be formed on the other opening edge 9 of the mounting hole 7 toward the outside. In this case, when the inclined surface of the pressing portion 54 of the locking claw 50 is inserted in contact with the other opening edge 9 of the mounting hole 7, the locking claw 50 is bent by the bent edge 9 a of the other opening edge 9.
The inclined surface of the pressing portion 54 slides while being satisfactorily pressed, and the locking claw 50 can be deformed (elastically deformed) toward the one opening edge 8 of the mounting hole 7. In other words, it is possible to eliminate a problem that the other opening edge 9 of the mounting hole 7 is hardly inadvertently inserted into the pressing portion 54 of the locking claw 50 and hinders the insertion operation.

Further, in the above-described embodiment, there is a case where the locking clips 40 each have a pair of locking claws 50 which are inserted into and engaged with the pair of mounting holes 7 of the hollow panel 1 (the inner panel 2). Although illustrated, the number of locking claws 50 is not limited, and may be a single one or a plurality of two or more. For example, as shown in FIGS. 14 and 15, a locking clip 4 having one locking claw 50 over one side of a peripheral portion of a pair of support plates 31 of the holder body 30.
0 is formed. Further, a tree-shaped locking projection 60, that is, a plurality of flanges provided in the axial direction of the shaft portion 61 and the outer periphery thereof, from the seat portion 33a straddling the pair of support plates 31 at a predetermined interval from the locking clip 40. The locking projection 60 having the locking portion 62 may be formed. In this case, the hollow panel 1 (the inner panel 2) is formed with a mounting hole 7 corresponding to the locking clip 40 and a press-fitting hole 7a into which the locking protrusion 60 is pressed and engaged. Further, in the above-described embodiment, the case where the hollow panel 1 is a pillar, a rocker panel, a roof panel, or the like of the vehicle body is exemplified, but the present invention is not limited to this. For example, the hollow panel may be a hollow panel other than the vehicle body, for example, a building such as a building or a ship.

[0021]

As described above, according to the present invention,
Even when the thickness of the hollow panel is different in size, the holder can be mounted by securely engaging the retaining clip with the mounting hole of the hollow panel. As a result, even when the thickness of the hollow panel is different in size, the locking clip and the entire filling device can be used in common, which is highly effective in cost reduction.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state where a holder body and a foamable base material constituting a filler for a hollow panel according to an embodiment of the present invention are separated.

FIG. 2 is a perspective view showing a state where a foamable base material is similarly assembled to the holder body.

FIG. 3 is an explanatory view showing a state in which the insertion guide portion of the locking claw of the locking clip is inserted along one opening edge of the mounting hole.

FIG. 4 is an explanatory view showing a state before the pressing portion of the locking claw is inserted in contact with the other opening edge of the mounting hole.

FIG. 5 is an explanatory view showing a state in which the engaging portion of the locking claw is pressed and engaged with one opening edge of the mounting hole.

FIG. 6 is a cross-sectional view showing a state where a filler is mounted in a hollow chamber of the hollow panel.

FIG. 7 is a cross-sectional view showing a state where the foamable base material of the filler is foamed to form a foam.

FIG. 8 is an explanatory view showing a state where the engaging portion of the locking claw is pressed and engaged with one opening edge of the mounting hole of the hollow panel having a large plate thickness.

FIG. 9 is an explanatory view showing a state where the engaging portion of the locking claw is pressed and engaged with one opening edge of the mounting hole of the hollow panel having a small plate thickness.

FIG. 10 is an explanatory view showing an embodiment in which a panel portion between a pair of mounting holes of the hollow panel is projected outward, and one opening edge of the mounting hole and another opening edge are formed in a step shape. FIG.

FIG. 11 is an explanatory view showing a state in which the engaging portion of the locking claw is pressed and engaged with one side opening edge of the stepped mounting hole.

FIG. 12 is an explanatory view showing an embodiment in which a bent edge is formed outward on the other opening edge of the pair of mounting holes of the hollow panel.

FIG. 13 is an explanatory diagram showing a state in which the engaging portion of the locking claw is pressed and engaged with one side opening edge of the step-shaped mounting hole.

FIG. 14 is an explanatory view showing an embodiment in which a locking clip having one locking claw and a tree-shaped locking projection are also arranged on the holder body.

FIG. 15 is an explanatory view showing a state in which the retaining clip of the holder body is engaged with the mounting hole of the hollow panel, and the tree-shaped retaining projection is press-fitted into the press-fitting hole of the hollow panel.

FIG. 16 is an explanatory view showing a conventional retaining clip of a filling device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hollow panel 6 Hollow chamber 7 Mounting hole 8 One side opening edge 9 Other side opening edge 10 Filler 20 Foamable base material 30 Holder body 31 Support plate 40 Locking clip 50 Locking claw 51 Insertion guide part 52 Engaging part 53 insertion part 54 pressing part

Claims (3)

[Claims] 1. A foamable base material that can be foamed by external heating to form a foam and be filled in a hollow panel, a holder body supporting the foamable base material, and a fitting hole of the hollow panel. And a locking clip for attaching the holder body to a required position in the hollow panel. A locking claw that is inserted into the mounting hole and engaged with the locking clip. On one side of the locking claw, an insertion guide portion inserted along one side opening edge of the mounting hole, and an engagement portion continuous with the insertion guide portion are formed respectively. On the other side of the locking claw, an insertion portion that is inserted along the other opening edge of the mounting hole, and the insertion portion that is continuous with the insertion portion and is in contact with the other opening edge of the mounting hole. The engaging claw is deformed toward an opening edge of one side of the mounting hole, and the engagement is performed. And a pressing portion for engaging the portion with one opening edge of the mounting hole. 2. The filling device for a hollow panel according to claim 1, wherein the pressing portion of the locking claw is inserted in contact with the other opening edge of the mounting hole to connect the locking claw to the mounting hole. A hollow panel filler formed on an inclined surface that is sequentially deformed toward one side opening edge. 3. The filler for a hollow panel according to claim 1, wherein the locking clip has a pair of locking claws respectively corresponding to a pair of mounting holes formed in the hollow panel. Panel filler.