JP3528861B2 - How to apply body protection film - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sticking method for sticking a car body protective film to a projecting portion on a car body surface.

[0002]

2. Description of the Related Art Conventionally, in order to protect the surface of a car body from acid rain, bird droppings, etc. during stocking or transportation of finished cars, a method of applying wax or laminating film to the car body surface. It has been known.

[0003]

However, in a vehicle body, for example, in a washer nozzle or a protruding portion such as an antenna, when wax is directly applied, nozzle clogging occurs, and when a film is directly applied, wrinkles occur. There was a problem that it was easy to peel off and the washer fluid entered and deteriorated the coated surface. For this reason, it is necessary to open the protruding portion and surely adhere the film end portion around the protruding portion so as to adhere the film.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention relates to a sticking method for sticking a vehicle body protection film to a protruding portion on the surface of a vehicle body, in which the periphery of the protruding portion is covered with a mask member. A liquid type wrapping agent is applied to the surface of the car body and dried to form a wrapping layer, and a wrapping film is attached from above, and the wrapping film and the wrapping layer are cut along the peripheral edge of the mask member to form a mask member. I decided to remove it. Further, a cutter base surface for cutting a film or the like was provided on the upper surface of the peripheral edge portion of the mask member. Further, an inclined surface is formed on the lower surface of the peripheral edge of the mask member so that the inner side abuts on the vehicle body surface and is separated from the vehicle body surface toward the outer side.

[0005]

If the periphery of the protruding portion is covered with a mask member and the liquid-type lapping agent is applied on the mask member, no operational trouble such as clogging of the nozzle of the washer nozzle occurs. Then, a wrapping film is attached from above, the wrapping film and the wrapping layer are cut along the peripheral edge of the mask member, and the mask member is removed to form the wrapping layer around the protruding portion in a close contact state. Can be done. Also,
By providing a cutter table surface for cutting a film or the like on the upper surface of the peripheral edge of the mask member, there is no problem that the vehicle body is damaged during cutting. Further, the inclined surface on the lower surface of the peripheral edge portion of the mask member makes it possible to make the end portion of the lapping layer difficult to peel off.

[0006]

EXAMPLES Examples of the attachment direction of the vehicle body protection film of the present invention will be described with reference to the attached drawings. FIG. 1 is a perspective view showing an example of a protruding portion of a vehicle body, and FIGS. 2 to 5 are process drawings.

The method of attaching the protective film of the present invention is shown in FIG.
2 is a method of forming a protective film neatly on the periphery of the surface of the vehicle body W such as shown in FIG. 2 while leaving a protruding portion such as a washer nozzle N, and a mask member 1 as shown in FIG. 2 is used.

That is, the mask member 1 is a member such as an inverted cup-shaped hard urethane that can sufficiently cover the protruding portion of the washer nozzle N and the like, and in the case of the embodiment, it is circular in plan view. There is.

A flange 2 is formed on the peripheral edge of the mask member 1 so as to project outward. The upper surface of the flange 2 is substantially horizontal and serves as a cutter base surface 2a, and the lower surface of the flange 2 is on the tip side of the flange 2. The inclined surface 2b is formed so as to reduce the thickness of the.

Therefore, when the mask member 1 is brought into contact with the surface of the vehicle body W, the inner lower surface of the flange 2 is brought into contact with the surface of the vehicle body W and the outer lower surface is separated from the surface of the vehicle body W and floats.

Therefore, according to the present invention, as shown in FIG. 2, the washer nozzle N is first covered with the mask member 1, and then the mask member 1 surface and the vehicle body W surface near the mask member 1 are covered with the mask member 1 as shown in FIG. A liquid type lapping agent 4 is applied by an airless or air mix type spray gun 3. Of course, other than spray drying, roller coating or brush coating may be used.

At this time, in the embodiment, the composition of the lapping agent 4 is 45.2 wt% of acrylic emulsion resin as the resin.
%, 1.8 wt% of water-dispersible silicone oil as an additive
%, 0.9 wt% of water dispersible UV absorber, 0.2 wt% of defoaming agent (mineral oil), 0.2 of dispersant (fatty acid ester)
wt%, clean water as a solvent was 51.7 wt%, the specific gravity of the liquid coating was 1.05, and the specific gravity of the coating film after drying was 1.09.

The coating film is semitransparent with a thickness of 50 to 100 μm and has a breaking strength of ² to 3 kg / mm ² (20 to 30 N / m).
m ² ), elongation at break 150-200%, light transmittance 2
It is 1% or less at 00 to 360 nm.

The lapping agent 4 applied by the spray gun 3 also enters the gap between the inclined surface 2b of the flange 2 of the mask member 1 and the surface of the vehicle body W and is dried to form the lapping layer 4r (FIG. 4). To form.

Here, the drying may be room temperature drying or heat drying, and for example, hot air at about 20 ° C. to 70 ° C. may be used for 0.1 to 10.
Dry while spraying at a wind speed of 0.2 m / s.

In the embodiment, the application of the lapping agent 4 is limited only to the local area around the mask member 1 to facilitate the work of peeling.

Next, as shown in FIG. 4, the lapping layer 4
The wrapping film 5 is attached from above r.

The wrapping film 5 is, for example, a polyolefin film having a peelable pressure-sensitive adhesive layer, and is attached to the entire surface of the vehicle body W to be protected including the wrapping layer 4r formed as described above.

The film 5 has a thickness of 40, for example.
The light transmittance is 0.04% or less at 200 to 400 nm, the initial adhesive force is 4 N / 25 mm width, and no abnormal coating film occurs even when exposed outdoors for 6 months.

When the lapping film 5 is attached, as shown in FIG. 4, the cutter 6 is moved along the cutter base surface 2a on the upper surface of the flange 2 at the peripheral edge of the mask member 1 to wrap the lapping film 5 with the lapping film 5. Cut the layer 4r. At this time, there is no risk of scratching the vehicle body W side by the cutter base surface 2a, and moreover, the wrapping film 5 and the wrapping layer 4r can be reliably cut.

Then, as shown in FIG. 5, the mask member 1
When the washer nozzle N is removed, the washer nozzle N is exposed to the outside and the original function of blowing out water can be exerted. At this time, since the mask member 1 has elasticity, it can be easily removed by contracting the mask member 1 inward.

The wrapping layer 4r, which has entered the gap between the inclined surface 2b of the flange 2 and the surface of the vehicle body W and dried, is inclined toward the inside of the washer nozzle N in a taper shape, so that the lapping layer 4r does not easily peel off, and Adhesion with the W surface is good.

The wrapping film 5 can be easily peeled off by pulling the edge of the film and the wrapping layer 4r can be removed by peeling. It is also possible to spray and remove with a water pressure of about 60 kg / cm ² .

The protruding portion is not limited to the washer nozzle N, but can be applied to an antenna, a spoiler or the like.

[0025]

As described above, according to the method of attaching the vehicle body protective film of the present invention, after covering the periphery of the protruding portion protruding from the vehicle body surface with the mask member, the liquid type lapping agent is applied and dried, Since the wrapping film is attached from above and it is cut along the peripheral edge of the mask member, the protective film around the open protruding portion can be adhered and adhered, and the penetration of water etc. is effective. To be prevented. Further, by providing the cutter base surface on the upper surface of the peripheral edge portion of the mask member, it is possible to surely cut without damaging the vehicle body, and by providing the inclined surface on the lower surface of the peripheral edge portion, it is possible to make the end portion of the lapping layer difficult to peel off. I can.

[Brief description of drawings]

[Figure 1] Partial exterior view of the vehicle body

2A and 2B are state views in which a protruding portion on the vehicle body surface is covered with a mask member, in which FIG. 2A is a vertical sectional view and FIG.

FIG. 3 is a state diagram in which a liquid type lapping agent is applied.

FIG. 4 is a state diagram in which the wrapping film and the wrapping layer are cut.

FIG. 5 is a state diagram in which a mask member is removed.

[Explanation of symbols]

1 Mask member 2 flange 2a Cutter surface 2b slope 4 Wrapping agent 4r wrapping layer 5 wrapping film 6 cutters

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Isao Kagawa 1907 Hirata-cho, Suzuka-shi, Mie Honda Motor Co., Ltd. Suzuka Works (56) Reference JP 5-237935 (JP, A) (58) Survey Areas (Int.Cl. ⁷ , DB name) B65B 33/04 B65D 85/68 B29C 65/48

Claims (3)

(57) [Claims] 1. A sticking method for sticking a vehicle body protective film to a protruding portion on a vehicle body surface, wherein after covering the protruding portion with a mask member, a liquid type lapping agent is applied to the vehicle body surface around the protruding portion. A step of forming a lapping layer by drying, a step of attaching a lapping film from the step, a step of cutting the lapping film and the lapping layer along the peripheral edge of the mask member, and a step of removing the mask member A method of attaching a car body protective film consisting of. 2. The method of attaching a vehicle body protection film according to claim 1, wherein a cutter base surface for cutting a film or the like is provided on an upper surface of a peripheral portion of the mask member. 3. The inclined surface is formed on the lower surface of the peripheral edge of the mask member so that the inner side contacts the vehicle body surface and the inner side is separated from the vehicle body surface toward the outer side. Alternatively, the method for attaching the vehicle body protection film according to claim 2.