JP4782075B2 - Mounting method of slide rail, slide rail member, and manufacturing method of slide rail member - Google Patents

Description

  The present invention relates to a slide rail mounting method, a slide rail member, and a method of manufacturing the slide rail member.

  Sliding doors are often used for rear doors of automobiles such as one-box cars, wagon cars, and RVs (Recreational Vehicles). This slide door has a structure in which a roller provided on the back side of the door moves in the front-rear direction of the vehicle by rolling on a slide rail portion formed on the vehicle body.

  In the vehicle manufacturing process, generally, painting is performed after the sliding door is temporarily fixed to the vehicle body. In this method, a coating film is often formed on the slide rail portion, or paint mist is often adhered. Then, when the roller rolls on the slide rail part, the coating film is peeled off and abnormal noise and rust are generated, or it is difficult to open and close the sliding door due to the peeling coating film and rust, Problems such as sliding doors vibrating when opening and closing.

  Therefore, after finishing painting, a member such as a metal plate is attached on the slide rail portion, and the roller rolls on this member to ensure smooth rotation of the roller. However, the process of attaching the above-mentioned member on the slide rail portion is complicated, and there is a problem that costs are required to manufacture and install the member.

  On the other hand, Patent Documents 1 and 2 describe a method of coating after masking a surface of a slide rail on which a roller rolls. Since it is sufficient to remove the masking after painting, this method eliminates the need to attach paint to the slide rail.

Japanese Patent No. 3689017 Japanese Patent Laid-Open No. 2005-052746

  By the way, the lower slide rail at the lower edge of the opening on the side surface of the vehicle body is in a narrow position where the door is recessed after the slide door is attached. For this reason, it is difficult to apply the masking tape after the lower slide rail is installed. That is, since the operator cannot visually confirm the entire slide rail, it takes time to align the masking tape with the slide rail. Also, the masking tape is likely to be displaced. Furthermore, since stainless steel is often used for the slide rail member, the operator may cut his / her finger with the slide rail during work.

  The present invention has been made in view of these points. That is, the object of the present invention is that there is no need to install a slide rail or a masking tape on a narrow and narrow position where the slide door is temporarily fixed, and it is easy to slide without attaching paint. An object of the present invention is to provide a slide rail mounting method capable of mounting a rail.

  Another object of the present invention is to provide a slide rail member that is easy to install without adhesion of paint.

  Furthermore, this invention is providing the manufacturing method of the said slide rail member.

  Other objects and advantages of the present invention will become apparent from the following description.

A first aspect of the present invention is a method for mounting a slide rail provided on a travel path of a roller that supports a slide door of a vehicle,
A slide rail having a slide rail plate, a masking tape provided on one main surface of the slide rail plate, and an adhesive sheet provided on the other main surface of the slide rail plate and processed into a predetermined shape Attaching the member to the vehicle body via the adhesive sheet before coating the vehicle body;
A step of peeling off the masking tape to form a slide rail after finishing the painting of the vehicle body.

  In the first aspect of the present invention, the predetermined shape is preferably a flat plate shape formed by a punching method.

A second aspect of the present invention is a slide rail member provided on a travel path of a roller that supports a slide door of a vehicle,
A slide rail plate,
A masking tape provided on one main surface of the slide rail plate;
It has a laminated body which consists of an adhesive sheet provided on the other main surface of the slide rail plate.

  2nd aspect of this invention WHEREIN: It is preferable that the said laminated body is the flat plate shape formed by the punching method.

  2nd aspect of this invention WHEREIN: It is preferable that the said adhesive sheet has a structure where the adhesive bond layer was provided in both surfaces of the adhesive sheet base material.

  In the second aspect of the present invention, the adhesive sheet is preferably conductive.

A third aspect of the present invention is a method of manufacturing a slide rail member provided on a travel path of a roller that supports a slide door of a vehicle,
A first step of providing either one of a masking tape and an adhesive sheet on one main surface of the slide rail plate;
The other main surface of the slide rail plate is provided with one of the masking tape and the adhesive sheet that is not provided in the first step to form a laminate composed of the masking tape, the slide rail plate, and the adhesive sheet. Two steps;
And a third step of processing the laminated body into a predetermined shape.

  In the third aspect of the present invention, the third step is preferably a step of processing the laminated body into a flat plate shape by a punching method.

  According to the first aspect of the present invention, since the masking tape and the adhesive sheet are provided in advance on the slide rail member before being attached to the vehicle body, the slide rail member can be easily installed on the vehicle body attaching portion. There is no need to align the masking tape after mounting.

  According to the second aspect of the present invention, since the masking tape and the adhesive sheet are provided on the slide rail plate, the slide rail plate can be easily attached to the vehicle body attachment portion.

  According to the 3rd aspect of this invention, the above-mentioned slide rail member is obtained easily.

  Below, the case where the slide rail member by this invention is applied to a lower slide rail is described.

  FIG. 1 is a diagram schematically illustrating a state in the vicinity of a slide door of a vehicle to which a slide rail member according to an embodiment of the present invention is applied. FIG. 2 is an enlarged view of a portion A in FIG. 1 and is a schematic enlarged view of a vehicle portion to which a lower slide rail is attached. Furthermore, FIG. 3 is a plan view of the slide rail member in the embodiment of the present invention. In these drawings, the same reference numerals indicate the same parts.

  As shown in FIG. 3, the slide rail member 101 has a flat plate shape with a tip portion curved in accordance with the shape of the slide door roller that travels.

  As shown in FIGS. 1 and 2, the slide rail 1 is configured by attaching the slide rail member 101 to the lower edge of the opening on the side of the vehicle body and then removing the masking tape. And the roller 3 provided in the back side of the slide door 2 rolls along the slide rail 1, and the movement of the slide door 2 to the front-back direction of a vehicle is attained.

  As described above, the slide rail 1 is provided on the travel path of the roller 3 that supports the slide door 2 of the vehicle. That is, the roller 3 rolls on the slide rail 1. In this case, the slide rail 1 mainly serves to prevent damage to the coating film surface of the vehicle body 4 due to the rolling of the roller 3. That is, the slide door 2 can be opened and closed without the slide rail 1, but without the slide rail 1, the roller 3 directly touches the painted surface of the vehicle body 4, and the painted surface is damaged. For this reason, designability is lost, rust is generated, and abnormal noise is generated during opening and closing. By providing the slide rail 1, it is possible to prevent the roller 3 from coming into direct contact with the painted surface.

  FIG. 4 is a partial cross-sectional view of the slide rail member 101. As shown in this figure, the slide rail member 101 has a structure in which a masking tape 202 is provided on one main surface of the slide rail plate 201 and an adhesive sheet 203 is provided on the other main surface. The masking tape 202 includes a masking tape substrate 204 and a tape-side adhesive layer 205 that bonds the masking tape substrate 204 and the slide rail plate 201. On the other hand, the adhesive sheet 203 is for adhering the slide rail member 201 to the vehicle body. The first adhesive layer 206, the adhesive sheet base material 207, and the second adhesive layer 208 are arranged in this order from the slide rail plate 201 side. Have a laminated structure.

  In the present specification, “adhesion” is a broad concept including adhesion, and “adhesive” refers to a material that joins and integrate things. Therefore, the adhesive has a low viscosity at first, but after the adherends are joined, it is solidified by a chemical reaction, solvent volatilization or temperature change, and expresses a high adhesive force at the interface (adhesive in a narrow sense) ) And those that are semi-solids with high viscosity and low elasticity from the beginning, and whose state does not change even after the adherends are joined (adhesive).

  The slide rail plate 201 is made of a material that can withstand the pressure contact of the roller 3 when the slide door 2 is opened and closed. Specifically, metal, particularly stainless steel is preferably used. The slide rail plate 201 has a thickness that does not cause deformation or warping when the slide door 2 is opened and closed. Depending on the weight of the slide door 2 and the number of times it is opened and closed, in the case of a stainless steel plate, it is generally preferably 1 mm or more, and preferably 1 mm to 3 mm.

  In the embodiment of the present invention, painting is performed after the slide rail member 101 is bonded to the vehicle body. Therefore, the material constituting the masking tape 202 must be resistant to the solvent of the paint used. Further, since the slide rail member 101 is exposed to a high temperature when the paint is dried, the material constituting the masking tape 202 is also required not to be altered by the temperature at the time of drying. Specifically, since the upper limit of the temperature at the time of drying the paint is usually less than 200 ° C., it is preferable to use a material having a melting point of 200 ° C. or higher.

  As a material of the masking tape substrate 204 that can satisfy the above conditions, for example, a polyethylene terephthalate film, a polyethylene naphthalate film, a polyimide film, a polyetherimide film, a polyaramid film, a polyetherketone film, a polyetheretherketone film, Examples include polyphenylene sulfide films and poly (4-methylpentene-1) films. These films can be used alone, or can be used by laminating the different types of films described above. Furthermore, the above film and a film other than the above can be laminated and used. Among the above films, a polyethylene terephthalate film is preferably used in terms of versatility, heat resistance, dimensional stability, and the like.

  Further, the masking tape 202 is peeled off after painting. Here, as shown in FIGS. 1 and 2, the slide rail member 101 is attached at the position of the lower edge of the opening on the side surface of the vehicle body. For this reason, an operator is forced to peel off the masking tape 202 from a position some distance after painting. Therefore, a large stress is applied to the masking tape 202 at the time of peeling. Therefore, as the material of the masking tape base material 204, a material having a high tear strength is used so that the masking tape base material 204 is not cut during the peeling. This is because if the masking tape 202 is cut off in the middle, a part of the masking tape 202 is left behind in a narrow and narrow position, resulting in a time consuming removal operation.

  The tear strength in the width direction of the masking tape substrate 204 needs to be 220 mN / 15 mm or more, and preferably 230 to 300 mN / 15 mm. Since the masking tape 202 has a long shape, when a large stress is applied as in the case of peeling from the slide rail plate 201, the masking tape 202 easily breaks the tape whose fracture surface extends in the width direction. However, by using the masking tape base material 204 having a tear strength in the width direction of 220 mN / 15 mm or more, it is possible to prevent tape breakage during peeling.

  When the masking tape substrate 204 is a resin film formed by, for example, an extrusion method, directionality appears in the film strength. Generally, the tear strength tends to be stronger in the width direction (cross machine direction) than in the flow direction (machine direction). Since the masking tape 202 is narrow and long in accordance with the shape of the slide rail member 101, the tape is likely to break in the short side direction of the masking tape 202 after coating and drying. Therefore, it is preferable that the masking tape base material 204 has the cross machine direction coincide with the short side direction of the masking tape 202. The tear strength in the cross machine direction of the masking tape base material 204 is preferably 220 mN / 15 mm or more, but the machine direction may be the short side direction if the tear strength in the machine direction is 220 mN / 15 mm or more. .

  The thickness of the masking tape base material 204 is usually about 20 to 300 μm, preferably 30 to 150 μm. When the thickness of the masking tape substrate 204 is less than 20 μm, it is difficult to obtain the above tear strength. On the other hand, when the thickness of the masking tape substrate 204 exceeds 300 μm, the visible light transmittance described later is deteriorated.

  The type of adhesive constituting the tape side adhesive layer 205 is not particularly limited as long as it can withstand the painting process and the paint drying process and can normally mask the slide rail plate 201. . However, the adhesive strength (based on JIS Z0237) after heating for 1 hour at 180 ° C. to the stainless steel adherend is preferably 4 to 10 N / 15 mm, and particularly preferably 5 to 9 N / 15 mm. Here, “180 ° C.” considers the temperature when the paint is dried, and “stainless steel adherend” considers the material of the slide rail plate 201. If the adhesive strength is less than 4 N / 15 mm, the masking tape 202 may float during the paint drying process. On the other hand, when the adhesive strength exceeds 10 N / 15 mm, the masking tape 202 is difficult to peel off from the adherend, and the tape is likely to be cut.

  Examples of the adhesive having the above-described adhesive strength include, for example, a rubber resin, an acrylic resin, an ethylene-vinyl acetate copolymer, a polyurethane resin, a polyester resin, a silicone resin, or the like as a main component. A pressure-sensitive adhesive or the like can be used. Among these adhesives, an adhesive mainly composed of a silicone resin (silicone adhesive) is preferable in terms of heat resistance and durability.

  Examples of the silicone-based adhesive include those containing polymethylsiloxane or polyphenylsiloxane as a main component and optionally containing a crosslinking agent such as a peroxide, a tackifier, a plasticizer, a filler, and the like.

  The thickness of the adhesive layer 12 is usually about 5 to 60 μm, preferably 10 to 40 μm.

  The masking tape 202 before being bonded to the slide rail plate 201 is provided with a release sheet (not shown) on the tape side adhesive layer 205. A conventionally known release sheet is used. For example, paper substrates such as glassine paper, coated paper and cast coated paper, and laminated paper obtained by laminating a thermoplastic resin such as polyethylene to these paper substrates, polyethylene terephthalate film, polybutylene terephthalate film and polyethylene naphthalate film, etc. Examples include those obtained by applying a release agent such as a silicone resin, an alkyd resin, and a fluororesin to a plastic film such as a polyester film, a polyolefin film such as polypropylene and polyethylene. The thickness of the release sheet is not particularly limited, but is usually about 20 to 150 μm.

  The visible light transmittance of the masking tape 202 (laminated body of the masking tape base material 204 and the tape side adhesive layer 205) from which the release sheet has been peeled is preferably 40 to 90%, particularly 45 to 85%. It is preferable. The haze of the masking tape 202 is preferably 5 to 98%, particularly preferably 80 to 96%. If the masking tape 202 entrains air during application, that is, if air enters between the tape-side adhesive layer 205 and the slide rail plate 201, that portion floats during drying of the paint, and the masking tape 202 may be peeled off. However, when the visible light transmittance and haze of the masking tape 202 are within the above ranges, it becomes easy to determine whether or not air has been involved when the masking tape 202 is applied. And when it is determined that there is air entrainment, measures can be taken again.

  As a method of controlling the visible light transmittance and haze of the masking tape 202 to the above ranges, a method of roughening the surface (surface) on the side where the tape-side adhesive layer 205 is not formed on the masking tape base material 204, or a masking tape The base material 204 (may be a part of the layer in the case of a laminate) and / or the tape side adhesive layer 205 contains a filler or dye such as calcium carbonate, aluminum paste and silica gel. The method of making it, etc. are mentioned. In the former case, the surface roughness (Ra) of the surface of the masking tape substrate 204 is preferably 0.05 to 0.80 μm, and particularly preferably 0.08 to 0.60 μm. As a method for obtaining such surface roughness, a method of performing sandblasting on the surface of the masking tape substrate 204 or a coating layer containing a coating agent containing particles having a predetermined particle diameter is used. Although there is a method of forming on the surface, it is not particularly limited.

  In order to manufacture the masking tape 202, a method of laminating the tape-side adhesive layer 205 on a release sheet by directly applying an adhesive on one surface of the masking tape substrate 204 to form a tape-side adhesive layer 205. Is mentioned. Alternatively, an adhesive may be applied on the release treatment surface of the release sheet to form the tape side adhesive layer 205, and the tape side adhesive layer 205 may be adhered to the masking tape substrate 204.

  The adhesive sheet 203 is required to firmly adhere the slide rail plate 201 to the vehicle body and not cause a positional shift. For this reason, as in the embodiment of the present invention, a double-sided tape in which adhesive layers (first adhesive layer 206 and second adhesive layer 208) are provided on both sides of the adhesive sheet substrate 207 is preferably used (FIG. 4).

  There is no restriction | limiting in particular in the adhesive sheet base material 207, It selects suitably from what is conventionally used as a support base material of a double-sided tape. For example, polyolefin resins such as polyethylene, polypropylene and various olefin copolymers, polyester resins such as polyethylene terephthalate and polyethylene naphthalate, polystyrene resins, polyvinyl chloride resins, acrylic resins, polycarbonate resins, polyamide resins Examples thereof include resins, polyimide resins, fluorine resins, plastic sheets made of a mixture or laminate of these resins, and metal foils such as aluminum and stainless steel. As will be described later, when electrodeposition coating is also applied to the end surface of the slide rail plate 201, a conductive support substrate is preferably used.

  In order to improve the adhesiveness with the adhesive layer provided on the adhesive sheet base material 207, a surface treatment such as an oxidation method or a concavo-convex method can be applied according to circumstances. Examples of the oxidation method include corona discharge treatment, chromic acid treatment (wet), flame treatment, hot air treatment, treatment with ozone or ultraviolet rays, and the like. On the other hand, examples of the concavo-convex method include a sand blast method and a solvent treatment method. These surface treatment methods are appropriately selected according to the type of the adhesive sheet substrate 207. For example, when the adhesive sheet base material 207 is made of plastic, generally, a corona discharge treatment method is preferably used from the viewpoint of effects and operability. Moreover, primer treatment can also be performed.

  The thickness of the adhesive sheet substrate 207 is usually determined in the range of 50 to 1500 μm, preferably in the range of 100 to 1000 μm.

  Examples of the adhesive layer used for the first adhesive layer 206 and the second adhesive layer 208 include a synthetic rubber adhesive, an acrylic resin adhesive, a polyvinyl ether resin adhesive, a urethane resin adhesive, or Examples include silicone resin adhesives.

  Specific examples of the synthetic rubber adhesive include styrene-butadiene rubber, isoprene-isoprene rubber, polyisobutylene rubber, polyisoprene rubber, styrene-isoprene block copolymer, styrene-butadiene block copolymer, styrene-ethylene. -Butylene block copolymer or ethylene-acetate vinyl thermoplastic elastomer.

  Specific examples of the acrylic resin adhesive include (meth) acrylic acid such as acrylic acid and methacrylic acid, methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, acrylic acid-2-ethylhexyl, and methyl methacrylate. (Meth) acrylic acid alkyl esters such as ethyl methacrylate and butyl methacrylate, acrylic acid-2-hydroxyethyl, acrylic acid-2-hydroxypropyl, acrylic acid-3-hydroxypropyl, acrylic acid-3-hydroxybutyl And hydroxyl-containing (meth) acrylic acid alkyl esters such as acrylic acid-4-hydroxybutyl, and vinyl esters such as vinyl acetate and vinyl propionate, styrene, vinyl pyridine, acrylonitrile and Such copolymerizable monomer 2 or more monomers of the copolymer, such as nitriles.

  Specific examples of the polyvinyl ether resin adhesive include polyvinyl ether and polyvinyl isobutyl ether.

  Specific examples of the silicone resin adhesive include dimethylpolysiloxane.

  Among the above adhesives, acrylic resin adhesives and silicone resin adhesives are preferable from the viewpoint of weather resistance and the like. In particular, an acrylic resin adhesive obtained by crosslinking an acrylic copolymer with a crosslinking agent such as an isocyanate crosslinking agent, an epoxy crosslinking agent, and a chelating crosslinking agent is preferably used.

  The adhesive layer may contain a tackifier, a softener, an anti-aging agent, a filler, or a colorant such as a dye and a pigment, if necessary.

  Examples of the tackifier include rosin resins, terpene phenol resins, terpene resins, aromatic hydrocarbon-modified terpene resins, petroleum resins, coumarone-indene resins, styrene resins, phenol resins, and xylene resins.

  Examples of the softening agent include process oil, liquid rubber, and plasticizer.

  Examples of the filler include silica, talc, clay, calcium carbonate, and the like.

  Although the thickness of the 1st adhesive bond layer 206 and the 2nd adhesive bond layer 208 is not restrict | limited in particular, Usually, each may be 5-200 micrometers, Preferably it is 10-100 micrometers, respectively.

  When electrodeposition coating is applied also to the end surface of the slide rail plate 201 from the viewpoint of rust prevention, a conductive substance such as metal particles and a conductive polymer material is used as the first adhesive layer 206 and the second adhesive. It is preferable to use in combination with the adhesive sheet base material 207 that is contained in the layer 208 and has the above conductivity.

  The surface of the second adhesive layer 208 is preferably covered with a release sheet (not shown) until the slide rail member 101 is attached to the vehicle body. The surface of the first adhesive layer 206 is preferably covered with the same release sheet until it is bonded to the slide rail plate 201. Thereby, it can prevent that dust etc. adhere to the surface of these adhesive layers, and adhesive force falls. The release sheet is not particularly limited, and various types of release sheets similar to those used for the masking tape 202 described above can be used.

  The first adhesive layer 206 and the second adhesive layer 208 can be formed by directly applying an adhesive to the surface of the adhesive sheet substrate 207. Moreover, after apply | coating an adhesive agent on the release agent layer of the above-mentioned release sheet and forming an adhesive layer, this surface is adhere | attached on an adhesive sheet base material, and then peeling a release sheet is carried out. It may be formed. The method for applying the adhesive is not particularly limited, and various methods can be used. For example, an air knife coater, a blade coater, a bar coater, a gravure coater, a roll coater, a roll knife coater, a curtain coater, a die coater, a knife coater, a screen coater, a Meyer bar coater or a kiss coater can be used. Since an adhesive sheet fixes a slide rail board on a vehicle body, a thing with a high shearing force mentioned later is preferable.

  Next, the manufacturing method of the slide rail member in this invention is described.

  The slide rail member includes a first step of providing one of a masking tape and an adhesive sheet on one main surface of the slide rail plate, and a first step of the masking tape and the adhesive sheet on the other main surface of the slide rail plate. A second step of forming a laminate composed of a masking tape, a slide rail plate, and an adhesive sheet, and a third step of processing the laminate into a predetermined shape. . In the embodiment of the present invention, a masking tape 202 is provided on one main surface of the slide rail plate 201 and an adhesive sheet 203 is provided on the other main surface of the slide rail plate 201, and then this laminate is processed into a predetermined shape. By doing so, the slide rail member 101 can be manufactured.

  First, a release sheet (not shown) provided on the first adhesive layer 206 of the adhesive sheet 203 is peeled off, and a first adhesive layer is formed on one main surface of the slide rail plate 201 using a laminating machine or the like. 206 is bonded (first step). Next, a release sheet (not shown) provided on the tape-side adhesive layer 205 of the masking tape 202 is peeled off, and the tape-side adhesive layer 205 is adhered to the other main surface of the slide rail plate 201 (second second). Process). Thereby, said laminated body is obtained. The order in which the first adhesive layer 206 and the tape side adhesive layer 205 are bonded may be reversed. Moreover, you may carry out simultaneously.

  Next, the obtained laminate is processed into a shape suitable for being provided on the running path of the roller that supports the sliding door of the vehicle (third step). In this invention, it is preferable to process into the flat plate shape formed by the punching method. For example, the slide rail member 101 can be formed by punching the laminate into the shape of FIG. 3 using a cutting device or the like. According to this method, it is possible to perform processing while minimizing mechanical and chemical damage to the laminate. In addition to the punching method, for example, it may be processed into a flat plate shape using a laser or the like. Further, it may be processed into a three-dimensional shape by pressing or the like.

  The slide rail member 101 obtained as described above can be attached to a predetermined position before the slide door 2 is mounted. Specifically, the slide rail member 101 is attached by peeling off a release sheet (not shown) provided on the second adhesive layer 208 and bonding this portion to the vehicle body.

  According to the slide rail mounting method of the present invention, since the adhesive sheet 203 and the masking tape 202 are provided in advance on the slide rail member 101 before being attached to the vehicle body 4, the masking tape is aligned after the slide rail is attached. There is no need to do. Therefore, the work can be performed in a short time, and the danger that the worker cuts the finger can be reduced. Further, since the removal of the masking tape 202 is performed after painting, it is possible to prevent the paint from adhering to the slide rail plate 201. As a result, when the roller 3 rolls on the slide rail plate 201, an abnormal noise or rust is generated due to the peeled coating film, or it becomes difficult to open and close the slide door 2, or the slide door 2 is opened and closed. It is possible to eliminate problems such as vibration.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in the above embodiment, the case where the slide rail member is applied to the lower slide rail has been described. However, the present invention is not limited to this, and the same effect can be obtained as long as the slide rail is mounted at a predetermined position of the vehicle.

  Examples of the present invention will be described below.

<Preparation of adhesive sheet (1)>
In a reactor equipped with a thermometer, stirrer, reflux condenser and nitrogen gas inlet tube, 50 parts by mass of butyl acrylate, 28 parts by mass of acrylic acid-2-ethylhexyl, 15 parts by mass of vinyl acetate, 7 parts of acrylic acid 100 parts by mass of ethyl acetate and 100 parts by mass of ethyl acetate were charged and copolymerized in the presence of an initiator of azobisisobutyronitrile to obtain an acrylic resin pressure-sensitive adhesive having a weight average molecular weight of 800,000.

  Next, a release resin layer is formed by applying a silicone resin as a release agent on one surface of a release substrate made of fine paper, and the release agent layer of the resulting release sheet (product name: 8K, manufactured by Lintec Corporation). On top of this, a mixture obtained by adding 1 part by mass of an isocyanate-based crosslinking agent (trade name: Coronate L, manufactured by Nippon Polyurethane Co., Ltd.) to 100 parts by mass of the acrylic resin-based pressure-sensitive adhesive has a thickness after drying. The first adhesive layer was formed by applying and drying with a roll knife coater so as to be 60 μm.

  A foamed polyethylene sheet (Sekisui Chemical Co., Ltd., trade name: Bollara XL-H # 07005 black) having a thickness of 500 μm and subjected to corona treatment is used as an adhesive sheet substrate, and this foam is formed on the first adhesive layer. A polyethylene sheet was laminated. Next, a second adhesive layer having a thickness after drying of 60 μm was formed on the opposite main surface of the foamed polyethylene sheet using the same pressure-sensitive adhesive as described above. Then, the shear force of the obtained adhesive sheet was tested.

  First, in an environment of a temperature of 23 ° C. and a humidity of 50%, the adhesive sheet is cut into a size having a width of 15 mm and a length of 100 mm, and then SUS having a thickness of 1.0 mm and the same size is formed on the first adhesive layer surface. A manufactured slide rail plate was attached. Next, this laminated body was affixed on the other SUS board. At this time, the area of the bonded portion was set to 15 mm × 15 mm. The test piece prepared as described above is allowed to stand for 24 hours in an environment of a temperature of 23 ° C. and a humidity of 50%, and then the shear strength of the adhesive sheet is applied at a tensile strength of 300 mm / min using a tensile tester in the same environment. It was measured. As a result, the obtained value was 251 N / 15 mm.

<Preparation of adhesive sheet (2)>
As an adhesive sheet substrate, an aluminum foil having a thickness of 200 μm was used, and on one main surface thereof, a conductive pressure-sensitive adhesive layer containing nickel flakes as an adhesive (made by Sliontec Co., Ltd., trade name: No. 5060, 80 μm thick) was laminated. Thereby, the electroconductive 1st adhesive bond layer was formed in one main surface of aluminum foil. Similarly, the second pressure-sensitive adhesive layer was formed on the other main surface of the aluminum foil using the conductive pressure-sensitive adhesive layer. When the shearing force of the obtained adhesive sheet was measured in the same manner as in Example 1, it was 283 N / 15 mm.

<Production of masking tape>
As a masking tape substrate, a polyethylene terephthalate film (Toray Industries, Inc.) having a thickness of 100 μm, a tear strength in the machine direction of 210 mN / 15 mm, a tear strength in the cross machine direction of 250 mN / 15 mm, a melting point of 250 ° C., and one surface sandblasted. A product name: Mattle Mirror # 100) manufactured by Co., Ltd. was prepared. The tear strength is measured according to JIS P8112.

  In addition, as a silicone-based pressure-sensitive adhesive, 55 parts by mass of an addition-type silicone pressure-sensitive adhesive (manufactured by Toray Dow Corning, product name: SD-4580), an addition-type silicone pressure-sensitive adhesive (manufactured by Toray Dow Corning, A product was prepared by blending 45 parts by mass of a trade name: SD-4484) and 1.8 parts by mass of a catalyst (trade name: SRX212, manufactured by Toray Dow Corning).

  Next, a silicone pressure sensitive adhesive is applied to the surface of the masking tape base material that has not been sandblasted so that the thickness after application is 20 μm, and dried at 150 ° C. for 1 minute to form a pressure sensitive adhesive layer. Formed. The obtained laminate was cut into a masking tape having a width of 200 mm and a length of 1200 mm so that the machine direction of the masking tape substrate was the longitudinal direction and the cross machine direction was the width direction. The visible light transmittance and haze of the masking tape were measured from the substrate side according to JIS K6714. As a result, the visible light transmittance was 84% and the haze was 83%. Moreover, the measurement of adhesive force was performed as follows. That is, the masking tape was attached to the stainless steel plate and allowed to stand for 1 hour, then heated in a constant temperature layer at 180 ° C. for 1 hour, and then allowed to stand at room temperature for 1 hour. Then, when measured by 180 degree peeling method according to JIS Z0237, the value of adhesive force was 6.5 N / 15 mm.

Example 1.
A stainless steel plate (TUS 430M) having a thickness of 1.2 mm, a width of 16 cm, and a length of 110 cm was used as the slide rail plate, and the masking tape was attached to one main surface with a laminator. Next, the adhesive sheet (1) was attached to the other main surface of the stainless steel plate with a laminator through the first adhesive layer. Next, this laminated body is punched into a flat plate shape (the same shape as in FIG. 4, a member width a: 13 mm, a length b: 100 cm, a width c: 15 cm) with a press cut machine, and a slide rail A member was prepared.

  The obtained slide rail member was affixed through the second adhesive layer at a position where the lower slide rail of the rear slide door of the one-box car before painting was provided. Thereafter, electrodeposition coating and exterior coating were applied to the vehicle body, the coating film was dried, and then the masking tape of the slide rail member was peeled off. The masking tape could be peeled off without being interrupted. In addition, a slide rail could be easily formed on the door rail portion of the vehicle body.

Example 2
A stainless steel plate (TUS 430M) having a thickness of 1.2 mm, a width of 16 cm, and a length of 110 cm was used as a slide rail plate, and an adhesive sheet (2) was attached to one main surface with a laminator through a first adhesive layer. . Next, the above-described masking tape was attached to the other main surface of the stainless steel plate with a laminator. Next, this laminated body was punched into a flat plate shape (the same shape as in Example 1) having a curved tip by a press-cutting machine to produce a slide rail member.

  The obtained slide rail member was affixed through the second adhesive layer at a position where the lower slide rail of the rear slide door of the one-box car before painting was provided. Thereafter, electrodeposition coating and exterior coating were applied to the vehicle body, the coating film was dried, and then the masking tape of the slide rail member was peeled off. The masking tape could be peeled off without being interrupted. In the present embodiment, electrodeposition coating was also applied to the side surface of the slide rail plate.

It is a mimetic diagram near a slide door of vehicles to which a slide rail member of this embodiment is applied. It is an enlarged view of the part A of FIG. It is a top view of a slide rail member in an embodiment of the present invention. It is a fragmentary sectional view of a slide rail member of an embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Slide rail 2 Slide door 3 Roller 4 Car body 5 Seat 101 Slide rail member 201 Slide rail board 202 Masking tape 203 Adhesive sheet 204 Masking tape base material 205 Tape side adhesive layer 206 1st adhesive layer 207 Adhesive sheet base material 208 1st 2 adhesive layers

Claims (8)

A method of mounting a slide rail provided on a travel path of a roller that supports a slide door of a vehicle,
A slide rail having a slide rail plate, a masking tape provided on one main surface of the slide rail plate, and an adhesive sheet provided on the other main surface of the slide rail plate and processed into a predetermined shape Attaching the member to the vehicle body via the adhesive sheet before coating the vehicle body;
And a step of peeling off the masking tape to form a slide rail after finishing the painting of the vehicle body. The slide rail mounting method according to claim 1, wherein the predetermined shape is a flat plate shape formed by a punching method. A slide rail member provided on a travel path of a roller that supports a slide door of a vehicle,
A slide rail plate,
A masking tape provided on one main surface of the slide rail plate;
A slide rail member comprising a laminate comprising an adhesive sheet provided on the other main surface of the slide rail plate. The slide rail member according to claim 3, wherein the laminated body has a flat plate shape formed by a punching method. The slide rail member according to claim 3 or 4, wherein the adhesive sheet has a structure in which an adhesive layer is provided on both surfaces of an adhesive sheet base material. The slide rail member according to any one of claims 3 to 5, wherein the adhesive sheet is conductive. A method of manufacturing a slide rail member provided on a travel path of a roller that supports a slide door of a vehicle,
A first step of providing either one of a masking tape and an adhesive sheet on one main surface of the slide rail plate;
The other main surface of the slide rail plate is provided with one of the masking tape and the adhesive sheet that is not provided in the first step to form a laminate composed of the masking tape, the slide rail plate, and the adhesive sheet. Two steps;
And a third step of processing the laminated body into a predetermined shape. The method for manufacturing a slide rail member according to claim 7, wherein the third step is a step of processing the laminated body into a flat plate shape by a punching method.

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