JP2882559B2 - How to apply a film for temporary protection of car body paint - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method for attaching a film for temporarily protecting a paint film on a vehicle body on the surface of a paint film of a completed vehicle.

[0002]

2. Description of the Related Art Conventionally, when a painted vehicle is transported to a foreign country or the like, the painted surface is temporarily protected from acid rain or the like, for example, as disclosed in Japanese Patent Application Laid-Open No. 3-267171. A technique of attaching a plastic film having a peelable pressure-sensitive adhesive layer on its surface is known. In this method, a plastic film having a peelable pressure-sensitive adhesive layer is attached to the body surface of a painted vehicle, and the body surface is covered using a vacuum.
For example, a film larger than the body is used to wrap the entire body.

[0003]

However, in the case of the above-mentioned technology, the entire vehicle body is covered with a single film which is larger than the vehicle body, so that the front window, side window, rear window, etc. There has been a problem that the film is stuck to a portion that does not need to be protected, which increases the cost. In addition, even if such a protective film is transparent, if it covers the front window, side window, etc., it may not be possible to obtain a sufficient field of view when it is mounted on a car carrier or a ship by self-propelled driving. In particular, in the case of a film having a pressure-sensitive adhesive layer, the visibility is extremely limited, and there is a risk of causing danger. So, avoid such a window,
It is also conceivable to attach a protective film only to places that really need protection such as hoods and roofs, but usually the width and length of the hood etc. and the shape of the terminal are different depending on the vehicle type. , The size of each standard in advance,
To cut and paste the protective film according to the shape of the terminal, both the cutting work and the sticking work had to take time-consuming procedures.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is intended to temporarily protect a paint film of a vehicle body by attaching a protective film having a peelable pressure-sensitive adhesive layer to the surface of the vehicle body of a painted vehicle. in the vehicle body coating temporary sticking method of the protective films, the temperature located above the vehicle body being transported
Lapping station with lowerable wrapping head
A protective film of a predetermined width with a hood, roof,
Cut over the length of each car longitudinal direction of the trunk lid, the
A first attaching step of attaching to the surfaces of the hood, the roof and the trunk lid, and a downstream side of the first attaching step
Said transported to the auxiliary crimping station arranged
From the top of the protective film attached to the surface of the hood, roof and trunk lid of the vehicle ,
And a second attaching step of pressing the four peripheral parts in accordance with the terminal shape of the trunk lid , and a downstream side of the second attaching step.
At the arranged shape cutting station, the bonnet,
-Safe, protection film attached to the surface of the trunk lid
Of the outer press pressure was locations, bonnet, roof, Trang
This is a method of attaching a film for temporarily protecting a paint film on a vehicle body, comprising a cutting step of cutting according to the terminal shape of a lid .

[0005]

For example, a protective film having a predetermined width enough to cover the width direction of the bonnet is cut into a length longer than the length of the bonnet or the like in the vehicle length direction and attached to each surface. To increase the bonding effect of the pressed portion. If the outside of the pressed portion is cut according to the terminal shape, it does not peel off from the terminal portion, and it is possible to prevent water from entering from the portion. In addition, since it is partially adhered from the beginning, there is little wasted part and it is economical. In addition, when cutting and pasting according to the shape of a bonnet or the like from the beginning, precision is required in the way of pasting, but in the case of the present invention, the work is simple with a somewhat rough pasting.

[0006]

An embodiment of the method for attaching a film for temporarily protecting a paint film on a vehicle body according to the present invention will be described. FIG. 1 is a diagram illustrating an example of a system configuration of a sticking apparatus to which the sticking method of the present invention is applied, FIG. 2 is a diagram illustrating a configuration example of a pressure roller, FIG. 3 is an image diagram in a case where the pressure roller is a liquid injection pressure method, and FIG. FIG. 3 is a diagram illustrating an example of the configuration.

[0007] A film for temporarily protecting a paint film on a vehicle body temporarily protects the painted surface from acid rain or the like when a painted vehicle is transported by a car carrier or exported overseas by ship. For this reason, it is attached to the painted surface, and is peeled off from the vehicle body when transportation or the like is completed.

Therefore, such a protective film is
For example, it is of a type that has a pressure-sensitive release-type pressure-sensitive adhesive layer on one side of a film layer of plastic or the like and can be pressed and adhered. The procedure at the time of peeling is simple, and no trouble such as waxing is required.

In the case of the present invention, the bonnet 2b of the car body 2 is
The coating surface of the roof 2r and the trunk lid 2t is mainly set to the area to be protected, and the protective film 3 is stuck on the upper surfaces of the parts 2b, 2r and 2t.

That is, as shown in FIG. 1, the sticking apparatus 1 includes a conveyor 4 for conveying the vehicle body 2 in the direction indicated by an arrow, a wrapping station 5 provided on the upstream side of the carrying path, and a downstream station. An auxiliary crimping station 6 and a shape cutting station 7 provided further downstream thereof;
The lapping station 5 is provided with a gate-type lapping gate 8.

The lapping gate 8 is provided with a lapping head 9 which can be moved up and down. An operation panel 27 for operating the lapping head 9 to move up and down and to move the conveyor 4 is provided. Is provided with a pair of pressing robots 10 for pressing the end portions of the protective film 3 and an operation panel 11 for operating the pressing robot 10. Further, a pair of shape cutting robots 12 and the robot 12 are operated in the shape cutting station 7. An operation panel 13 is provided.

The wrapping head 9 has a film roller 15 around which a long protective film 3 having a predetermined width is wound.
A pressure roller 16 for pressing and attaching the protective film 3 sent from the film roller 15 toward the vehicle body 2
For example, when the protective film 3 is attached to the bonnet 2a, the protective film 3 is attached to the bonnet 2a in a vehicle length direction at a length equal to or longer than the length of the bonnet 2b.
I try to cut it.

The predetermined width of the protective film 3 is 1800 mm in the case of the embodiment. That is, the width of the hood 2b or the like in the vehicle width direction is usually equal to the roof 2r.
The width of the hood 2b or the trunk lid 2t is longer than that of the roof 2r.
mm, it is uniformly unified to 1800 mm.

Of course, the width of the protective film 3 is
In this case, another protective film or a strippable paint is applied to the remaining portion of the bonnet 2b and the trunk lid 2t, and a protective film is formed on the entire surface. To do.

The pressure roller 16 is made of, for example, urethane foam and has a diameter of about 100 mm, and is selected from urethane foam having such a hardness that the visual compression quality of the protective film 3 is good and the peel strength is high. However, it has been confirmed that by making the elastic modulus of the roller central portion different from that of the both ends, the pressure-bonding property of the end portion of the film 3 can be enhanced. That is, as shown in FIG.
By using 6a as a low elastic material and the both ends 16b as a high elastic material, it is possible to increase the pressing force of the end of a bonnet or the like which is usually formed on a curved surface having an intermediate height.

The pressure roller 16 is used for the protective film 3.
For example, as shown in FIG. 3, a liquid injection pressure roller 17 system may be used to increase the pressure contact area in order to increase the pressure contact effect. In this case, for example, a highly viscous liquid is placed in a roller cylinder 18 made of an elastic body. And the internal pressure P is applied to improve the shape following ability. In the figure, reference numeral 19 denotes a tension roller.

In the lapping station 5 described above, the protection film 3 is pressed against the vehicle body 2 by the pressure roller 16 by combining the elevating movement of the lapping head 9 and the operation of the transport conveyor 4, and the hood 2b and the roof 2r are pressed. Then, cut and paste each part of the trunk lid 2t longer than the respective length. At this time, the pressure roller 16
The situation such as entrapment of air on the sticking surface and generation of wrinkles can be easily prevented by crimping, and sticking can be performed reliably and easily. The above is the first attaching step.

The bonnet 2 at the wrapping station 5
When the attachment to the b, the roof 2r, and the trunk lid 2t is completed, the vehicle body 2 is sent to the auxiliary crimping station 6.

At this station 6, the auxiliary roller 20 provided at the tip of the arm of the pressing robot 10 presses the four peripheral ends of the protective film 3 pasted at the previous station 5, thereby effecting the pasting of the ends. Enhance.
The above is the second attaching step.

As shown in FIG. 4, for example, the auxiliary roller 20 may be provided with a universal joint 21 at the center and the periphery thereof is covered with an elastic body 22. That is, it is adapted to be bent at a predetermined angle in accordance with the body shape of the end portion of the hood 2b, the roof 2r, or the like, so that it can be applied to, for example, a curved surface portion of a fender portion.

Next, the vehicle body 2 is sent to a shape cutting station 7. In this shape cutting station 7, a cutter 2 provided at the tip of the arm of the shape cutting robot 12 is provided.
3, an unnecessary portion of the protective film 3 is automatically cut around the terminal portion such as the hood 2b as a parting line,
The user operates the operation panel 13 as described above. The above is the cutting process
And

By the above-described steps, it is possible to perform the bonding with relatively little waste and the high bonding effect of the end portion. For example, the bonding of the washer nozzle portion 24 and the antenna portion 25 shown in FIG. It is desirable to attach a small film 3a to the projection in advance.

That is, the film 3a is, for example, 1
It is about 100 mm x 100 mm in size, and by providing a cut in advance at the location corresponding to the projection, it is securely attached to the coating surface around the projection to prevent intrusion of water etc.,
The protective film 3 is adhered from above, and finally a hole for exposing a nozzle or the like is formed in the protective film 3.

The protective film 3 adhered on the painted surface in the above-described procedure completely blocks the influence of, for example, acid rain on the painted surface, and has a sufficient adhesive force at the end. There is no problem such as peeling from the end.

[0025]

As described above, according to the present invention , painting is completed.
Protective film having peelable adhesive layer on car body surface
Car that temporarily protects the body coating by sticking
In the method of attaching the film for temporary protection of body coating,
Up / down lap pig head placed above the incoming vehicle body
Wrapping station with a fixed width
Cars with hood, roof, and trunk lid
Cut the length of the hood, roof,
First attaching step of attaching to the surface of the trunk lid
And an auxiliary crimping screw disposed downstream of the first attaching step.
The hood and lure of the vehicle conveyed to the station
Protective cover attached to the surface of the
Bonnet, roof and trunk lid from above the film
Bonding step of pressing the four peripheral parts according to the shape of the terminal
And a shape cut arranged downstream of the second attaching step
Station, hood, roof, trunk lid
Outside the pressed part of the protective film attached to the surface of
To the terminal shape of the hood, roof and trunk lid
Since it consists of a cutting process that cuts together,
Sticking method Cal body coating temporary protective film, only the range to be protected stuck a protective film, since then cut the unnecessary portion, a waste is reduced economically produced in the protective film. Moreover, the pasting procedure is simpler than the procedure of cutting and pasting according to the shape in advance. Further, since the edge of the protective film has a high adhesive effect, there is no problem that the edge is easily peeled off from the edge as in the conventional case, and the coating film protecting function can be enhanced.

In particular, the present invention relates to a hood,
Off, the first attaching process of the temporary protective film to the trunk lid, bonnet temporary protective film, roof, DOO
After pasting to the run lid, the four peripheral ends of the protective film of each part pasted in the second pasting step are pressed again, so that the effect of pasting the four peripheral ends can be enhanced, and thus the peeling at the four peripheral ends can be achieved. Does not occur. In addition, since the four peripheral ends are pressed again in the second attaching step, the effect of attaching the four peripheral ends is enhanced. Therefore, in the first attaching step, there is no need to strongly attach the protective film, and the protective film is attached. Bonnet , roof, trunk lid
Deformation of the soil can be prevented. Furthermore, when cutting following the terminal shape in the cutting step, since the adhesive effect of the protective film edge is high as described above, when cutting the terminal portion,
There is no fear of peeling. Therefore, the terminal cut of the protective film is surely cut according to the shape, and since the terminal cut off during transportation of the automobile has a high adhesive effect, it is also possible to prevent the terminal from being turned up by the wind and peeling off. can do.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an example of a system configuration of a sticking device to which a sticking method according to the present invention is applied.

FIG. 2 is a configuration example diagram of a pressure roller;

FIG. 3 is an image diagram in a case where a pressure roller is a liquid injection pressure bonding method.

FIG. 4 is a configuration example diagram of a pressing roller.

FIG. 5 is a plan view of a vehicle body for explaining a procedure for a washer nozzle portion and an antenna portion.

[Explanation of symbols]

 2 Body 2b Bonnet 2t Trunk lid 2r Roof 3 Protective film 5 Wrapping station 6 Auxiliary crimping station 7 Shape cutting station

──────────────────────────────────────────────────続 き Continued on the front page (72) Koji Marumo, Inventor 1-10-1 Shinsayama, Sayama City, Saitama Prefecture Honda Engineering Co., Ltd. (56) References JP-A-3-124522 (JP, A) JP-A Heisei 3-254858 (JP, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) B62D 65/00 B65B 33/04

Claims (1)

(57) [Claims] Claims: 1. A method for attaching a film for temporarily protecting a paint film of a vehicle body, wherein the protective film having a peelable pressure-sensitive adhesive layer is attached to the surface of the vehicle body of a painted vehicle to temporarily protect the paint film of the vehicle body. Elevating rappi placed above the car body being conveyed
In wrapping station having a Guheddo, cut the protective film of a predetermined width, bonnet, roof, over a length of each car longitudinal direction of the trunk lid, the bonnet, Le
A first bonding step of bonding to the surface of the trunk lid, and an auxiliary crimping screw disposed downstream of the first bonding step.
The hood and lure of the vehicle conveyed to the station
-Safe, from the top of the protective films Once attached to the surface of the trunk lid, and a second attaching step of pressing the four sides portions together bonnet, roof, the terminal shape of the trunk lid <br/>, the second Shape cut arranged downstream of the pasting process
In the station, and wherein the bonnet, roof, the outer press pressure was locations protection film attached to the surface of the trunk lid, bonnet, roof, consisting of cutting process for cutting in accordance with the terminal shape of the trunk lid, the To apply a film for temporary protection of vehicle body paint.