JP2014121987A - Vehicle seat member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat member which prevents the occurrence of rubbing sounds and rust and properly performs gap control even if a gap between panels is small.SOLUTION: A vehicle seat member 10 includes: a seal layer 11 having adhesiveness on its surface; a film layer 12 laminated on the seal layer 11; a soft acrylic foam layer 13 laminated on the film layer 12; and a hot melt layer 14 which is laminated on the soft acrylic foam layer 13, has non-adhesiveness at normal temperature, and is melted by heating.

Description

  The present invention relates to a vehicular seat member that prevents a bevel due to an external force by filling a gap between panels constituting a vehicle body of an automobile.

  In automobiles, for example, the gap between the front pillar outer panel and the upper edge of the fender panel is filled with a foaming sealing material to prevent damage caused by external forces or contact between panels and noise. (For example, refer to Patent Document 1).

JP-A-8-216920

  By the way, although the conventional foaming sealing material is effective when the gap between the panels is relatively large, when the gap is small, the foaming sealing material protrudes outside from the gap or presses the panel. There is a concern that proper clearance management cannot be performed. Here, as a member that can cope with a small gap, for example, it is conceivable to use a sheet member formed by laminating a glass cloth on a prepreg sheet made of a foamed resin (see, for example, JP 2000-103008 A). In this conventional structure, the prepreg sheet is adhered to one panel with an adhesive, and the glass cloth is brought into contact with the other panel. For this reason, the cross glass and the panel may rub against each other due to an external force, and noise may be generated, or the panel may rust due to water intrusion.

  The present invention has been made in view of the above-described conventional situation, and provides a vehicle seat member capable of appropriately managing the gap even when the gap between the panels is small while preventing the generation of rubbing noise and rust. The challenge is to do.

  The present invention relates to a vehicle seat member disposed so as to fill the gap between the first panel and the second panel disposed so as to face each other with a predetermined gap, and has an adhesive surface. A sealing layer, a film layer laminated on the sealing layer, a soft acrylic foam layer laminated on the film layer, a non-adhesiveness at room temperature and laminated on the soft acrylic foam layer And a hot melt layer that melts as a result.

  According to the sheet member of the present invention, the sealing layer having adhesiveness on the surface, the film layer laminated on the sealing layer, the soft acrylic foam layer laminated on the film layer, and the flexible acrylic foam layer And a laminated hot melt layer.

  Since the soft acrylic foam layer is not foamable, the gap can be reliably filled without protruding from the gap between the panels or deforming the panel. As a result, even when the gap is small, the gap management can be performed properly and reliably, and beveling and deformation due to external force can be prevented.

  In addition, since the flexible acrylic foam layer is soft and has elasticity, it can absorb a gap variation due to a dimensional error when the panel is assembled and can prevent deterioration in appearance.

  Since the hot melt layer is melted by heating and welded to the panel, the gap between the panel and the hot melt layer can be eliminated, and between the panels when the sheet member including the glass cloth is used. Rust generation due to rubbing noise and water intrusion can be prevented.

  In addition, when attaching the sheet member, it is only necessary to apply the seal layer to either one of the first and second panels, and there is no application work on the hot melt layer side. Can increase the sex. Furthermore, since it is not necessary to protect the hot melt layer with a release paper, the cost can be reduced accordingly.

  Here, by adhering the first and second panels with the sheet member, there is a concern about repairability, but in the present invention, a film layer is interposed between the seal layer and the flexible acrylic foam layer. The film layer and the soft acrylic foam layer can peel the interface, and can ensure repairability when performing maintenance or the like.

It is a perspective view of the vehicle body panel of the motor vehicle by which the vehicle seat member by Example 1 of this invention was arrange | positioned. It is sectional drawing (II-II sectional view taken on the line of FIG. 1) of the vehicle body panel by which the said sheet | seat member was arrange | positioned. It is a figure of the said sheet member. It is sectional drawing of the said sheet | seat member.

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

  1 to 4 are views for explaining a vehicle seat member according to Embodiment 1 of the present invention.

  In the figure, reference numeral 1 denotes a front body panel of an automobile. The front body panel 1 includes a left and right front pillar outer panel (first panel) 2 and a left and right fender panel (second panel) 3 extending in the vehicle vertical direction.

  A hood 4 is disposed between the left and right fender panels 3, and a triangular window 5 is disposed between the pillar outer panel 2 and the fender panel 3. In addition, 6 is a front door and 7 is a bumper.

  The pillar outer panel 2 includes an upper part 2 a serving as an exterior surface and a lower part 2 b extending downward following the upper part 2 a, and the lower part 2 b is covered with the fender panel 3.

  The fender panel 3 includes an upper front attachment portion 3a attached to a fender apron (not shown), a front end attachment portion 3b attached to the bumper 7, and a rear end attachment portion attached to the lower side portion 2b of the pillar outer panel 2. 3c, and a lower end attachment portion 3d attached to the rocker panel 8. The upper edge 3e of the fender panel 3 is released without being attached to the mating member over the entire length in the front-rear direction.

  A stepped portion 2c is formed on the inner side of the vehicle at the boundary portion between the upper portion 2a and the lower portion 2b where the triangular window 5 of the front pillar outer panel 2 is disposed.

  An upper edge 3e of the fender panel 3 is disposed on the step 2c so as to face each other in the vehicle width direction with a predetermined gap s.

  A sheet member 10 is interposed in the gap s so as to fill the gap s.

  The sheet member 10 includes a sealing layer 11 having adhesiveness on the surface, a film layer 12 laminated on the sealing layer 11, a soft acrylic foam layer 13 laminated on the film layer 12, and the flexible acrylic foam layer. And a hot melt layer 14 that is non-adhesive at room temperature and melts when heated.

  The sealing layer 11 is formed by, for example, applying a varnish (adhesive) made of an epoxy resin, an acrylic resin, or the like to a base material and then drying or extruding after kneading these resins. The thickness is set to about 0.1 to 0.3 mm.

  A release paper 15 for protecting the adhesiveness is attached to the seal layer 11. The sealing layer 11 is bonded and fixed to the front pillar outer panel 2 by peeling off the release paper 15.

  The film layer 12 is formed of a polymer film made of a highly heat-resistant PET (polyethylene terephthalate) resin, and has a thickness of about 0.1 mm.

  The hot melt layer 14 is non-adhesive at normal temperature (specifically 20 to 30 ° C.) and melts when heated to a predetermined temperature (specifically 90 to 200 ° C.). Has a layer.

  The hot melt layer 14 is made of, for example, a high melting point hot melt resin (melting point: 100 to 200 ° C.) made of polyamide, polyester or the like, or a low melting point hot melt resin (melting point: 90 mainly) made of ethylene-vinyl acetate copolymer or the like. ˜100 ° C.), and the thickness is set to about 30 to 500 μm.

  The flexible acrylic foam layer 13 is formed of a polymerizable mixture containing acrylic acid, methacrylic acid ester, etc., and the thickness is set to about 2.0 to 5.0 mm in this embodiment, The thickness corresponds to the gap s.

  The flexible acrylic foam layer 13 is stretchable and has a hardness with a compressive load of about 4.8 N / cm2. This compressive load is about ½ of 8.2 N / cm 2 of a general acrylic resin, and it can be seen that it is considerably softer than a general acrylic resin. The compressive load refers to an original thickness measured at a compression rate of 10 mm / min using a compression tester after measuring 25 × 25 mm acrylic foam tape so as to have a thickness of about 10 mm and then measuring the exact thickness. This means the load when compressed to 25%.

  In the present embodiment, in the assembly process of the front body panel 1, the release paper 15 of the sheet member 10 is peeled off and the seal layer 11 is attached to the step 2c of the front pillar outer panel 2, and then the fender panel 3 is attached. Electrodeposition coating is applied in this state, and baked and dried at a temperature of 140 to 190 ° C., for example. During this baking, the hot melt layer 14 is melted and firmly welded to the upper edge 3 e of the fender panel 3. As a result, the gap s is filled with the sheet member 10.

  According to the present embodiment, the sheet member 10 includes a sealing layer 11 having adhesiveness on the surface, a film layer 12 laminated on the sealing layer 11, and a soft acrylic foam layer 13 laminated on the film layer 12. And a hot melt layer 14 laminated on the flexible acrylic foam layer 13.

  The soft acrylic foam layer 13 of this embodiment is not foamable, and therefore can reliably fill the gap s without protruding from the gap s or deforming the fender panel 3. As a result, even when the gap s is small, gap management can be performed properly and reliably, and beveling and deformation due to external force can be prevented.

  Further, since the flexible acrylic foam layer 13 is soft and has elasticity, it can absorb the variation in the gap s due to the dimensional error when the fender panel 3 is assembled, and can prevent the appearance from being deteriorated due to the variation.

  Since the hot melt layer 14 is melted by heating and welded to the fender panel 3, there is no gap between the fender panel 3 and the hot melt layer 14. Therefore, a sheet member including a conventional glass cloth is used. When it is adopted, it can prevent the generation of rust due to the rubbing noise between panels and the ingress of water.

  In addition, as for the mounting of the sheet member 10, it is only necessary to peel off the release paper 15 and stick the seal layer 11 to the front puller outer 2. The mounting operation can be easily performed.

  Furthermore, since it is not necessary to protect the hot melt layer 14 with a release paper, the cost can be reduced accordingly.

  By the way, by bonding the pillar outer panel 2 and the fen panel 3 with the sheet member 10, there is a concern about repairability at the time of maintenance or the like. In this embodiment, since the film layer 12 is interposed between the seal layer 11 and the flexible acrylic foam layer 13, the film layer 12 and the flexible acrylic foam layer 13 can peel the interface between them, and the maintenance described above. Time repairability can be ensured. Moreover, since the film layer 12 and the soft acrylic foam layer 13 can be adhered again after maintenance, stickiness and deformation after repair can be prevented.

  In addition, in the said Example, although the sheet | seat member 10 was stuck on the pillar outer panel 2 side, you may stick this sheet | seat member 10 on the fender panel 3 side.

Moreover, although the case where the gap s between the pillar outer panel 2 and the fender panel 3 is filled with the sheet member 10 has been described, the present invention is not limited to this. For example, it is possible to fill a gap between the reinforcing door beam and the door outer panel disposed in the door body or a gap between the roof panel and the roof rein hose. In short, the first and second panels constituting the vehicle body It can be applied to prevent sticking due to external force by filling the gap.

2 Front pillar outer panel (first panel)
3 Fender panel (second panel)
DESCRIPTION OF SYMBOLS 10 Seal member 11 Seal layer 12 Film layer 13 Soft acrylic foam layer 14 Hot melt layer s Crevice

Claims (1)

A vehicle seat member configured to fill the gap between the first panel and the second panel arranged to face each other with a predetermined gap,
A sealing layer having adhesiveness on the surface;
A film layer laminated to the sealing layer;
A soft acrylic foam layer laminated to the film layer;
A vehicular seat member comprising: a hot-melt layer laminated on the soft acrylic foam layer, non-adhesive at room temperature, and melted by heating.

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