JP5686766B2 - Manufacturing method of core material and manufacturing method of trim material - Google Patents

Description

The present invention relates to a method for manufacturing a long core material embedded in a long trim material made of a polymer material, and a method for manufacturing a trim material .

  Generally, a trim material is attached to a flange provided along the periphery of an opening such as a door opening or a trunk opening of a vehicle body such as an automobile. The trim material is formed into a shape having a mounting portion having a substantially U-shaped cross section by extrusion molding of an elastic polymer material such as rubber or thermoplastic synthetic resin (including thermoplastic elastomer), and the flanges on both sides are mounted by the mounting portions. It is fixed to the flange by sandwiching from Some trim materials have a reinforcing core material embedded in the mounting portion so that the mounting portion can be stably fixed to the flange.

  By the way, since the flange provided along the peripheral edge of the opening of the vehicle body is bent two-dimensionally or three-dimensionally in the longitudinal direction, the trim material is formed into a substantially linear shape by extrusion molding. Bent to fit the bent shape. For this reason, the core material embedded in the trim material is formed with a plurality of space portions at predetermined intervals in the longitudinal direction so as to be bent freely following the bending of the trim material.

  As such a core material, a “punched core material” in which spaces are formed at predetermined intervals in the longitudinal direction of the strip-shaped metal plate by punching, or a slit extending in the width direction leaving a part in the width direction of the strip-shaped metal plate. Is formed at predetermined intervals in the longitudinal direction of the strip metal plate, and then the slit is expanded in the longitudinal direction of the strip metal plate by rolling a portion where no slit is formed in the width direction of the strip metal plate to form a space portion. The “rolled core material” is used.

In recent years, the need for weight reduction of vehicles has increased, and the weight reduction of the core material has been demanded. However, simply reducing the thickness of the core material to reduce the weight reduces the rigidity of the core material.
Therefore, as described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2003-200791), the deformed portion (rib) is formed by pressing in the punched core material, thereby reducing the thickness of the core material and reducing the core thickness. There is one that can secure the rigidity of the core material while reducing the weight of the material.

However, the punched core material is not good because the punched portion of the strip-shaped metal plate (core material) becomes unnecessary and wastes.
Therefore, as described in Patent Document 2 (Japanese Patent Laid-Open No. 2010-240737), a rolled core material (primary core material) is manufactured or obtained, and the rolled core material is continuously placed between the deformed portion forming rollers. There are some that can be manufactured efficiently by forming a deformed portion (rib) for reinforcement in the rolled core material, thereby providing a core material provided with the deformed portion.

Japanese Patent Laid-Open No. 2003-200791 JP 2010-240737 A

  In general, in the rolled core material, the spacing between the core material pieces (the length of the space in the longitudinal direction of the core material) varies due to variations in the thickness and material of the rolled portion. For this reason, when the rolling core material is supplied between the deformed portion forming rollers and the reinforcing deformed portion is formed on the rolled core material as in the technique of Patent Document 2 described above, the influence of the variation in the interval between the core material piece portions is affected. Accordingly, it is difficult to form the deformed portion having the same shape at the same position of each core piece, and the position and shape of the deformed portion formed on each core piece vary. For this reason, when the core material is embedded in the trim material, the surface of the trim material has a concavo-convex pattern in the longitudinal direction of the trim material corresponding to the irregularly formed deformed portions on the respective core material pieces. There is a problem that the trim material is formed irregularly and the appearance of the trim material is deteriorated.

  Therefore, the problem to be solved by the present invention is that the core material provided with the deformable portion can be efficiently manufactured and the deterioration of the appearance of the trim material in which the core material provided with the deformed portion is embedded can be suppressed. There is.

  In order to solve the above-mentioned problems, the invention according to claim 1 is a method of manufacturing a long core material embedded in a long trim material made of a polymer material from a long belt-shaped metal plate, A metal plate is supplied to a slit forming means provided with a slit forming portion, and a slit extending in the width direction of the band-shaped metal plate is left in the longitudinal direction of the band-shaped metal plate while leaving a part in the width direction of the band-shaped metal plate. A slit forming step of forming a core piece between slits that are formed at a pitch and adjacent to each other in the longitudinal direction of the strip-shaped metal plate, and the strip-shaped metal plate is supplied to a deformed portion forming means provided with the deformed portion forming portion. By executing a deformed portion forming step of forming a deformed portion extending in the width direction of the band-shaped metal plate at a predetermined pitch in the longitudinal direction of the band-shaped metal plate, the core piece piece on which the deformed portion is formed and the slit are formed. Produced strip-shaped metal plates alternately provided in the longitudinal direction In addition, a strip-shaped metal plate in which deformed portions are formed and a strip-shaped metal plate in which slits are alternately provided in the longitudinal direction is supplied between the rolling rollers, and a slit is not formed in the width direction of the strip-shaped metal plate Is rolled in the longitudinal direction of the strip-shaped metal plate to form a rolled portion extending in the longitudinal direction of the strip-shaped metal plate, and a slit is enlarged in the longitudinal direction of the strip-shaped metal plate to form a space portion. Thus, the core material in which the core material pieces and the space portions in which the deformed portions are formed is alternately provided in the longitudinal direction is manufactured.

  In this manufacturing method, before executing the rolling process for forming the space portion by enlarging the slit, the deformation portion forming step for forming the deformation portion is executed. Forming deformed parts with the same shape at the same position on each core piece without being affected by variations in the spacing between the core pieces (the length of the space in the longitudinal direction of the core) that occurs when forming can do. As a result, a concavo-convex pattern is regularly formed in the longitudinal direction of the trim material on the surface of the trim material in which the core material is embedded, corresponding to the deformed portions regularly formed in the respective core material pieces. Therefore, it can suppress that the appearance of the surface of a trim material deteriorates.

  In this case, as in the second aspect, the slit forming means and the deforming portion forming means may be rollers. If it does in this way, while supplying a strip | belt-shaped metal plate continuously between rollers, while forming a slit by a slit formation part of a roller and forming a core piece part, a deformation | transformation part is formed by the deformation | transformation part formation part of a roller. Since it can be formed, it is possible to efficiently manufacture a band-shaped metal plate provided with a deformed portion (a band-shaped metal plate in which core pieces and slits formed with a deformed portion are alternately provided in the longitudinal direction). it can. Furthermore, the strip-shaped metal plate provided with the deformed portion can be continuously supplied to the rolling roller, and the rolled portion can be formed by the rolling roller and the slit can be enlarged to form the space portion. The provided core material (the core material in which the core material pieces and the spaces in which the deformed portions are formed are alternately provided in the longitudinal direction) can be efficiently manufactured.

  According to a third aspect of the present invention, a slit-shaped metal plate is supplied between rollers in which slit forming portions and deforming portion forming portions are alternately provided, and the slit forming step and the deforming portion forming step are performed simultaneously. Also good. In this way, it is not necessary to separately install the roller provided with the slit forming part and the roller provided with the deforming part forming part, and the manufacturing apparatus can be reduced in size and the deforming part is provided. The strip-shaped metal plate (the strip-shaped metal plate in which the core piece portions on which the deformed portions are formed and the slits are alternately provided in the longitudinal direction) can be manufactured more efficiently.

Moreover, when manufacturing the elongate trim material made from the polymer material in which the elongate core material was embedded like Claim 4 , it manufactures with the manufacturing method in any one of Claim 1 thru | or 3. By using the core material provided with the deformed portion, the trim material is supplied to the extrusion mold while continuously supplying the core material provided with the deformed portion to the extrusion mold for molding the trim material. An extrusion molding process for embedding a core material in which a deformed portion is provided in the trim material, a treatment process for curing or solidifying a polymer material portion of the trim material, and a trim material and a core embedded in the trim material A final cross-section forming step for forming the material into a predetermined final cross-sectional shape may be performed. In this manner, the trim material in which the core material provided with the deformed portion (the core material in which the core material piece portion and the space portion in which the deformed portion is formed is alternately provided in the longitudinal direction) is embedded is efficiently obtained. Can be manufactured.

FIG. 1 is a perspective view of a trim material according to Embodiment 1 of the present invention. FIG. 2 is a plan view of the core material of the first embodiment. 3 is a cross-sectional view taken along the line AA in FIG. FIG. 4 is a schematic configuration diagram of the core material manufacturing apparatus. FIG. 5 is a schematic configuration diagram of the slit deforming portion roller of the first embodiment. FIG. 6 is an enlarged view of a main part of the slit deforming portion roller of the first embodiment. FIG. 7 is a view of the slit deforming portion roller of the first embodiment when viewed from the downstream side. FIG. 8 is a schematic configuration diagram of the trim material manufacturing apparatus. FIG. 9 is a cross-sectional view of the core material of the second embodiment. FIG. 10 is an enlarged view of a main part of the slit deforming portion roller of the second embodiment. FIG. 11 is a cross-sectional view of the core material of Example 3. FIG. 12 is an enlarged view of a main part of the slit deforming portion roller of the third embodiment.

  Hereinafter, some embodiments embodying the mode for carrying out the present invention will be described.

A first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, a long trim member 11 (so-called trunk seal trim) mounted on a flange (not shown) provided along a trunk opening edge (periphery of the trunk opening) of a body panel of an automobile or the like. ) Is formed integrally with the mounting portion 12 having a U-shaped cross section and the cylindrical hollow seal portion 13 by extrusion molding of an elastic polymer material such as rubber or thermoplastic synthetic resin (including thermoplastic elastomer). In the mounting portion 12, a core material 14 formed of a strip-shaped metal plate is embedded by composite extrusion.

  The mounting portion 12 has a vehicle outer side wall portion 15, a vehicle inner side wall portion 16, and a top wall portion 17 that connects both side wall portions 15, 16. A cylindrical hollow seal is formed on the outer surface of the top wall portion 17. The part 13 is provided integrally. Holding lips 18 and 19 are integrally formed on the inner side surface of the vehicle outer side wall portion 15 and the inner side surface of the vehicle inner side wall portion 16 so as to protrude in directions opposite to each other. In this embodiment, two holding lips 18 and 19 (a holding lip 18 on the top wall side and a holding lip 19 on the terminal side) are formed on the vehicle outer side wall portion 15 and the vehicle inner side wall portion 16, respectively. The core member 14 embedded in the attachment portion 12 extends to the vicinity of the ends of both side wall portions 15 and 16 (around the end where the holding lip 19 on the end side is formed), and the attachment portion 12 is reinforced by the core member 14. By doing so, the attachment part 12 can be stably fixed to the flange of the trunk opening edge.

  When the mounting portion 12 of the trim material 11 is attached to the flange of the trunk opening edge, the holding lips 18 and 19 abut against the flange and elastically deform to sandwich the flange from both the inside and outside of the vehicle. The trim material 11 is attached to the flange. Then, when the trunk lid or hatchback (not shown) is closed, the trunk lid abuts against the hollow seal portion 13 and elastically deforms the hollow seal portion 13 so that the space between the trunk lid and the vehicle body panel (not shown) is reduced. Sealed by the hollow seal portion 13.

  A first seal lip 20 projecting toward the vehicle exterior side and a second seal lip 21 projecting toward the vehicle interior side are located at or near the tip of the vehicle exterior side wall portion 15 of the mounting portion 12. It is integrally formed. When the trim material 11 is mounted on the flange, the first seal lip 20 and the second seal lip 21 are brought into contact with the vehicle body panel and elastically deformed, so that the vehicle outer side wall portion 15 of the mounting portion 12 A space between the vehicle body panel and the vehicle body panel is sealed with seal lips 20 and 21.

  On the other hand, on the outer side surface of the vehicle interior side wall portion 16 of the mounting portion 12, a shielding lip 23 that protrudes toward the vehicle inner side and whose tip is curved toward the mounting portion 12 is integrally formed. When the trim material 11 is attached to the flange, the terminal of the interior member (not shown) in the vehicle is covered with the shielding lip 23.

  In the present embodiment, the mounting portion 12 (the vehicle outer side wall portion 15, the vehicle inner side wall portion 16 and the top wall portion 17) and the holding lips 18 and 19 are made of solid rubber material (non-foamed rubber material) or hard TPE ( The hollow seal portion 13, the seal lips 20, 21 and the shielding lip 23 are made of a sponge rubber material (foamed rubber material) or a soft TPE material.

  By the way, since the flange at the trunk opening edge is bent two-dimensionally or three-dimensionally in the longitudinal direction (including twist), the trim material 11 is formed in a substantially linear shape by extrusion molding and is bent in the flange. Bent to fit the shape. For this reason, the core material 14 embedded in the trim material 11 is formed with a space portion 26 (see FIG. 2) described later at predetermined intervals in the longitudinal direction so that the core material 14 can be bent freely following the bending of the trim material 11. ing.

  As shown in FIGS. 2 and 3, the core material 14 is formed of a long strip-shaped metal plate (for example, a cold-rolled steel plate, a stainless steel plate, an aluminum plate, etc.), and has a predetermined interval in the longitudinal direction of the core material 14. Are provided with a plurality of core member pieces 24 and a rolled portion 25 that connects the plurality of core member pieces 24 in the longitudinal direction of the core member 14. A space portion 26 is provided therebetween. In this embodiment, the rolling portions 25 that connect the core piece portions 24 are provided in two rows along the longitudinal direction, and the space portions 26 between the adjacent core piece portions 24 are widened by the two rows of rolling portions 25. It is divided into three areas in the direction. In addition, you may make it provide the rolling part 25 in 1 row or 3 rows or more.

  The rolled portion 25 that is rolled and thin in thickness has a low strength and a small holding force for holding the flange. By disposing the rolling portion 25 on the terminal side of the mounting portion 12 relative to the holding lip 18 on the top wall portion side, the holding lips 18 and 19 on the top wall portion side and the terminal side are flanged on the terminal side of the mounting portion 12. Is held to prevent the holding force from being lowered by the rolling section 25.

  Further, as shown in FIG. 3, each core material piece portion 24 (a portion excluding the rolling portion 25) of the core material 14 is formed with a bending deformation portion 27 (deformation portion) extending in the width direction of the core material 14. Has been. The bending deformation portion 27 is formed such that a cross section along the longitudinal direction of the core member 14 has an inverted V shape. While the rigidity of the core material 14 (core material piece portion 24) is secured by the bending deformation portion 27, the thickness of the core material 14 (core material piece portion 24) is reduced. In addition, the bending deformation part 27 of each core piece 24 may be configured by one row of bent portions (inverted V-shaped portions), or may be formed by a plurality of rows of bent portions.

  In the present embodiment, the core material 14 has a Vickers hardness HV of 170 or more (Rockwell hardness HRB is 85 or more) of SPCC-1B defined in JIS G 3141, preferably a Vickers hardness HV of 200 or more (Rockwell). It is formed of a cold rolled steel sheet having a hardness HRB of 90 or more. The plate thickness X (see FIG. 3) of the core material 14 (core material piece portion 24) is set to 0.35 mm, and the height Y (see FIG. 3) of the apex of the bending deformation portion 27 is set to 0.65 mm. Has been.

Hereinafter, the manufacturing method of the core material 14 and the manufacturing method of the trim material 11 will be described with reference to FIGS. 4 to 8.
As shown in FIG. 4, a winding roller 30 around which a long band-shaped metal plate 29 is wound is disposed on the upstream side of the core material manufacturing apparatus 28. The core material manufacturing apparatus 28 includes a pair of slit deforming portion rollers 31 (slit forming means and deforming portion forming means) that perform slit processing and deformation portion forming processing, a pair of rolling rollers 32 that perform rolling processing, and correction processing. A pair of correction rollers 33 to be performed are arranged side by side from the upstream side toward the downstream side. A winding roller 34 for winding the core material 14 is disposed on the downstream side of the core material manufacturing apparatus 28.

  When manufacturing the core material 14, first, the belt-shaped metal plate 29 fed from the winding roller 30 is supplied between the pair of slit deforming portion rollers 31, and the slit deforming portion roller 31 uses the width of the band-shaped metal plate 29. The slits (not shown) extending in the width direction of the band-shaped metal plate 29 leaving a part of the direction (the portion to become the rolled portion 25) are formed at a predetermined pitch in the longitudinal direction of the band-shaped metal plate 29, and A slit forming step for forming the core piece 24 between adjacent slits in the longitudinal direction, and a deforming portion for forming the bending deformed portions 27 extending in the width direction of the strip-shaped metal plate 29 at a predetermined pitch in the longitudinal direction of the strip-shaped metal plate 29. The forming process is performed simultaneously. Thereby, the strip | belt-shaped metal plate 29A in which the core material piece part 24 in which the bending deformation part 27 was formed, and the slit were provided alternately in the longitudinal direction is manufactured.

  As shown in FIGS. 5 to 7, the slit deforming portion roller 31 is provided with an upper roller 35 and a lower roller 36 so as to sandwich the band-shaped metal plate 29 from both upper and lower sides. As shown in FIG. 6, slit forming blades 37 and 38 (slit forming portions) for forming slits in the belt-shaped metal plate 29 are provided in the circumferential direction on the outer peripheral surface of the upper roller 35 and the outer peripheral surface of the lower roller 36, respectively. Are provided along a predetermined pitch. Further, on the outer peripheral surface of the upper roller 35 and the outer peripheral surface of the lower roller 36, a deformed portion forming groove 39 (deformed portion forming portion) and a deformed portion forming protrusion for forming the bent deformed portion 27 on the belt-shaped metal plate 29, respectively. 40 (deformation part formation part) is provided in the predetermined pitch along the circumferential direction.

  In this case, the slit forming blade 37 and the deformed portion forming groove 39 are provided along the circumferential direction on the outer peripheral surface of the upper roller 35 so that the slits and the bent deformed portions 27 are alternately formed in the longitudinal direction of the belt-shaped metal plate 29. The slit forming blades 38 and the deformed portion forming protrusions 40 are alternately provided on the outer peripheral surface of the lower roller 36 along the circumferential direction. In the first embodiment, the shape of the slit forming blade 38 and the shape of the deformed portion forming protrusion 40 are the same. However, the shape is not limited to this, and the shape of the deformed portion forming protrusion 40 is the belt-shaped metal plate 29. The shape may be appropriately changed as long as it protrudes from the supply position.

  Further, as shown in FIG. 7, the outer peripheral surface of the upper roller 35 and the outer peripheral surface of the lower roller 36 are each provided with a slit and a bent deformation portion in a part in the width direction of the strip-shaped metal plate 29 (a portion to become the rolling portion 25). The concave grooves 41 and 42 are provided along the circumferential direction so as not to form 27.

  Using the slit deforming portion roller 31 configured as described above, the slit forming blade 37 is continuously fed between the slit deforming portion rollers 31 (between the upper roller 35 and the lower roller 36). , 38 to cut the strip-shaped metal plate 29 to form slits at a predetermined pitch to form the core member piece 24 between the adjacent slits, and to form the deformed portion forming groove 39 and the deformed portion forming protrusion. The core material piece in which the bending deformation portion 27 is formed by executing a deformation portion forming step of bending the portion that becomes the core material piece portion 24 of the band-shaped metal plate 29 by the portion 40 and forming the bending deformation portion 27 at a predetermined pitch. The band-shaped metal plate 29A in which the portions 24 and the slits are alternately provided in the longitudinal direction is manufactured. At this time, since the bent portion 27 can be formed in the portion that becomes the core material piece portion 24 with both ends of the portion that becomes the core material piece portion 24 fixed by the slit forming blades 37 and 38, the core material piece portion The bent deformation portion 27 can be stably formed in the portion to be 24.

  In addition, since the bending deformation part 27 formed in the deformation part forming process is pressed and slightly crushed in a correction process to be described later, in the deformation part forming process, the height Y of the apex of the bending deformation part 27 (see FIG. 3). Reference) may be formed slightly higher than the final height (for example, 0.65 mm).

  After the slit forming step and the deformed portion forming step are simultaneously performed as described above, as shown in FIG. 4, a strip-shaped metal plate 29A (a core piece on which the bent deformed portion 27 is formed) fed from the slit deformed portion roller 31. A portion in which the slits are not formed in the width direction of the strip-shaped metal plate 29 </ b> A by the rolling roller 32. (Rolling portion 25) is rolled in the longitudinal direction of strip-shaped metal plate 29A to form rolled portion 25 extending in the longitudinal direction of strip-shaped metal plate 29A, and the slit is enlarged in the longitudinal direction of strip-shaped metal plate 29A. A rolling process for forming the portion 26 is performed. At this time, only one of the front surface and the back surface of the portion that becomes the rolling portion 25 may be recessed and rolled, or both the front and back surfaces of the portion that becomes the rolling portion 25 are recessed and rolled. Anyway. Further, in this embodiment, when the trim material 11 and the core material 14 are formed into the final cross-sectional shape (see FIG. 1) in the final cross-sectional forming step described later, the core material 14 is not bent in the width direction. The rolled part 25 is formed at the position (position on the terminal side of the mounting part 12 with respect to the holding lip 18 on the top wall part side).

  In this rolling process, the slit part is expanded in the longitudinal direction by rolling the part where the slit is not formed in the width direction of the strip-shaped metal plate 29A (the part that becomes the rolling part 25) to form the space part 26 in the longitudinal direction. Therefore, the length of each space portion 26 (the size of the space portion 26 in the longitudinal direction of the core material 14) varies, but the length of each core material piece portion 24 (the core material piece portion in the longitudinal direction of the core material 14). The dimension of 24) is a constant length without change before and after the rolling process.

  By performing the rolling process in this way, the strip-shaped metal plate 29 is used without waste (preventing unnecessary portions from being punched), and the core material piece portion 24 having the bending deformation portion 27 formed thereon The core material 14 in which the space portions 26 are alternately provided in the longitudinal direction is manufactured.

  After executing the rolling process, the core material 14 delivered from the rolling roller 32 is supplied between the pair of correction rollers 33, and the core material 14 is corrected by the correction roller 33 so that the core material 14 is flattened. A correction process is performed to remove the distortion and deformation of the core material 14 by applying pressure to the core material 14. By this correction process, the distortion and deformation of the core material 14 generated in the core material preparation process (slit forming process, deformed part forming process, and rolling process) can be removed. If the core material 14 is hardly distorted or deformed in the core material preparation process (slit forming process, deformed part forming process or rolling process), the correcting roller 33 is omitted and the correcting process is omitted. Also good.

  Thereafter, as shown in FIG. 4, the core material 14 fed from the correction roller 33 (the core material in which the core material pieces 24 and the space portions 26 in which the bending deformation portions 27 are formed are alternately provided in the longitudinal direction). Is supplied to the take-up roller 34, and the core material 14 is taken up by the take-up roller 34.

  Thereafter, as shown in FIG. 8, the core material 14 (the core material pieces 24 having the bending deformation portions 27 and the space portions 26 are alternately provided in the longitudinal direction in the uppermost stream portion of the trim material manufacturing apparatus 43. A winding roller 34 around which the core material is wound is disposed, and the core material 14 is fed from the winding roller 34 and supplied to the extrusion molding device 44. In addition, the winding roller 34 is omitted, and the core material 14 (the core material pieces 24 formed with the bending deformation portions 27 and the space portions 26 are alternately arranged in the longitudinal direction, which is fed from the correction roller 33 of the core material manufacturing apparatus 28. The core material provided on the trim material manufacturing apparatus 43 may be directly supplied to the extrusion molding apparatus 44.

  By this extrusion molding device 44, a trim material 11A having a predetermined intermediate cross-sectional shape (see the two-dot chain line in FIG. 2) is extruded, and the core material 14 is embedded in the mounting portion 12 of the trim material 11A having the intermediate cross-sectional shape. An extrusion process is performed. The extrusion molding device 44 supplies the polymer material to the extrusion mold while continuously supplying the core material 14 to the extrusion mold for extruding the trim material 11A having the intermediate cross-sectional shape. The material 11A (attachment portion 12, hollow seal portion 13 and the like) is extruded. Thereby, the core material 14 is covered with the polymer material, and the core material 14 is embedded and integrated in the mounting portion 12 of the trim material 11A having an intermediate cross-sectional shape.

  Thereafter, when the polymer material forming the trim material 11A is rubber (for example, EPDM), the trim material 11A having an intermediate cross-sectional shape extruded from the extrusion molding device 44 is supplied to the curing processing device 45. This curing processing device 45 heats the trim material 11A with a heater 46 (for example, a high-frequency heater and a hot air heater), and the trim material 11A main body (unvulcanized rubber portion extruded by the extrusion molding device 44). A processing step of vulcanizing and curing is performed. After the trim material 11A main body is vulcanized and cured, the trim material 11A is cooled by a cooling machine 47 such as a cooling water tank as necessary.

  When the polymer material forming the trim material 11A is a thermoplastic synthetic resin (including a thermoplastic elastomer), the heater 46 of the curing processing device 45 is omitted, and the molten material is heated from the extrusion molding device 44. The trim material 11A having an intermediate cross-sectional shape extruded in step 1 is cooled by a cooling machine 47 such as a cooling water tank to solidify the trim material 11A main body (an unsolidified resin portion extruded by the extrusion molding device 44). Run.

  Thereafter, the trim material 11 </ b> A having an intermediate cross-sectional shape is supplied to the core material separating device 49 while being pulled by the take-up machine 48, and the trim material having the intermediate cross-sectional shape is provided by a number of breaking rollers provided in the core material separating device 49. A connecting portion 25a that is a portion adjacent to the space portion 26 in the width direction of the core material 14 in the rolled portion 25 of the core material 14 embedded in the trim material 11A by bending the 11A while being pulled (see FIG. 2). The core part piece part 24 of the core material 14 is separated by executing a connecting part breaking step of breaking the core material 14.

  Thereafter, the trim material 11A having the intermediate cross-sectional shape is supplied to the trim material cold roll forming apparatus 50, and the trim material cold roll forming apparatus 50 finally crosses the mounting portion 12 of the trim material 11A having the intermediate cross-sectional shape. The final cross-section forming step for forming the surface shape (see FIG. 1) is executed. The trim material cold roll forming apparatus 50 is a plurality of pairs (for example, two pairs) of forming rollers, and gradually attaches the mounting portion 12 of the trim material 11A having an intermediate cross-sectional shape together with the core material 14 embedded in the mounting portion 12. Deform to form the final cross-sectional shape.

  Thereafter, the trim material 11 having the final cross-sectional shape fed from the trim material cold roll forming apparatus 50 is supplied to the cutting machine 51, and the trim material 11 is cut into a predetermined length by the cutting machine 51. Thereby, manufacture of the trim material 11 in which the core material 14 is embedded is completed.

  In the first embodiment described above, the strip-shaped metal plate 29 is continuously supplied between the slit deforming portion rollers 31 (between the upper roller 35 and the lower roller 36), and the slits provided in the slit deforming portion roller 31 are formed. The slits 37 and 38 are used to form slits at a predetermined pitch to form the core piece 24, and the deformed portion forming groove 39 and the deformed portion forming protrusion 40 provided on the slit deforming portion roller 31 are used to form the bent deformed portion 27 in a predetermined manner. Since it is formed at a pitch, the band-shaped metal plate 29A provided with the bending deformation portion 27 (the band-shaped metal plate in which the core piece portions 24 formed with the bending deformation portion 27 and the slits are alternately provided in the longitudinal direction. In addition, the belt-shaped metal plate 29A provided with the bending deformation portion 27 is continuously supplied between the rolling rollers 32 so that the rolling roller 32 Since the rolling part 25 is formed and the slit is enlarged to form the space part 26, the core material 14 provided with the bending deformation part 27 (the core material piece part 24 formed with the bending deformation part 27 and the space The core material in which the portions 26 are alternately provided in the longitudinal direction) can be efficiently manufactured.

  In addition, before executing the rolling process of enlarging the slit to form the space portion 26, the deformed portion forming step of forming the bending deformed portion 27 is performed. The same shape at the same position of each core piece piece 24 without being affected by the variation in the interval of the core piece pieces 24 (the length of the space portion 26 in the longitudinal direction of the core piece 14) generated when forming The bending deformation portion 27 can be formed. Thereby, on the surface of the trim material 11 in which the core material 14 is embedded, the concavo-convex pattern is formed in the longitudinal direction of the trim material 11 corresponding to the bending deformation portions 27 regularly formed in the respective core material pieces 24. Since the surface is regularly formed in the direction, it is possible to suppress deterioration of the appearance of the surface of the trim material 11.

  Furthermore, in the first embodiment, the slit deforming portion roller 31 in which the slit forming portions (slit forming blades 37 and 38) and the deforming portion forming portions (the deforming portion forming groove 39 and the deforming portion forming protrusion 40) are alternately provided. Since the band-shaped metal plate 29 is supplied between the slit forming step and the deformed portion forming step, the roller provided with the slit forming portion and the roller provided with the deformed portion forming portion are separately provided. The core material manufacturing apparatus 28 can be reduced in size without being installed, and the band-shaped metal plate 29A provided with the bending deformation portion 27 can be manufactured more efficiently.

  In addition, by manufacturing the core material 14 provided with the bending deformation portion 27, it is possible to realize the core material 14 that can ensure rigidity while reducing the plate thickness and reducing the weight. By manufacturing the trim material 11 in which 14 is embedded, it is possible to realize the trim material 11 that can secure the holding force to the flange while being reduced in weight and can be stably fixed to the flange.

  Next, Embodiment 2 of the present invention will be described with reference to FIGS. 9 and 10. However, parts that are substantially the same as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted or simplified, and parts different from those in the first embodiment are mainly described.

  In the second embodiment, as shown in FIG. 9, a step deformation portion 53 (deformation portion) extending in the width direction of the core material 52 is formed in each core material piece portion 24 of the core material 52. The step deforming portion 53 is formed so that the cross section along the longitudinal direction of the core member 52 is substantially S-shaped. In this case, for example, the plate thickness X of the core material 52 (core material piece portion 24) is set to 0.35 mm, and the height Y of the apex of the step deformation portion 53 is set to 0.65 mm. In addition, the level | step difference deformation | transformation part 53 of each core material piece part 24 may each be comprised by one level | step difference part (substantially S-shaped part), and may be comprised by the level | step difference part of several rows.

  As shown in FIG. 10, slit forming blades 54 and 55 (slit forming portions) for forming slits in the belt-like metal plate 29 are provided in the circumferential direction on the outer peripheral surface of the upper roller 35 and the outer peripheral surface of the lower roller 36, respectively. Are provided along a predetermined pitch. Further, on the outer peripheral surface of the upper roller 35 and the outer peripheral surface of the lower roller 36, deformed portion forming protrusions 56 and 57 (deformed portion forming portions) for forming the step deformed portion 53 on the belt-shaped metal plate 29 are circumferential. Are provided at a predetermined pitch.

  In this case, the slit forming blade 54 and the deformed portion forming protrusion 56 are provided in the circumferential direction on the outer peripheral surface of the upper roller 35 so that the slits and the step deformed portions 53 are alternately formed in the longitudinal direction of the belt-shaped metal plate 29. The slit forming blades 55 and the deformed portion forming protrusions 57 are alternately provided along the circumferential direction on the outer peripheral surface of the lower roller 36.

  When the core material 14 is manufactured, the belt-shaped metal plate 29 is continuously fed between the upper roller 35 and the lower roller 36 while the belt-shaped metal plate 29 is cut by the slit forming blades 54 and 55 to form slits. A slit forming step of forming the core material piece portion 24 between adjacent slits formed at a predetermined pitch is performed, and a portion that becomes the core material piece portion 24 of the band-shaped metal plate 29 is formed by the deformed portion forming protrusions 56 and 57. By performing a deformed portion forming step of forming the step deformed portion 53 at a predetermined pitch by bending or curving, the core material pieces 24 and the slits on which the step deformed portion 53 is formed are alternately provided in the longitudinal direction. A strip-shaped metal plate is manufactured. Then, the core material 52 by which the core material piece part 24 in which the level | step difference deformation | transformation part 53 was formed, and the space part 26 were alternately provided in the longitudinal direction is manufactured by performing a rolling process.

  In the second embodiment described above, since the substantially S-shaped step deformation portion 53 is formed in each core piece portion 24 of the core member 52, the thickness of the step deformation portion 53 can be increased. It is possible to increase the strength of the core material 52 (core material piece portion 24).

  Next, Embodiment 3 of the present invention will be described with reference to FIGS. However, parts that are substantially the same as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted or simplified, and parts different from those in the first embodiment are mainly described.

  In the third embodiment, as shown in FIG. 11, convex deformation portions 59 (deformation portions) extending in the width direction of the core material 58 are formed in each core material piece portion 24 of the core material 58. The convex deformed portion 59 is formed such that a cross section along the longitudinal direction of the core member 58 is curved in an arc shape. In this case, for example, the plate thickness X of the core material 58 (core material piece portion 24) is set to 0.35 mm, and the height Y of the apex of the convex deformation portion 59 is set to 0.65 mm. In addition, the convex deformation part 59 of each core material piece part 24 may each be comprised by the convex part (part curved in the circular arc shape) of 1 row, and may be comprised by the convex part of multiple rows.

  As shown in FIG. 12, slit forming blades 60 and 61 (slit forming portions) for forming slits in the belt-shaped metal plate 29 are provided in the circumferential direction on the outer peripheral surface of the upper roller 35 and the outer peripheral surface of the lower roller 36, respectively. Are provided along a predetermined pitch. Further, on the outer peripheral surface of the upper roller 35 and the outer peripheral surface of the lower roller 36, a deformed portion forming concave portion 62 (deformed portion forming portion) and a deformed portion forming convex portion for forming the convex deformed portion 59 on the belt-shaped metal plate 29, respectively. 63 (deformation part formation part) is provided in the predetermined pitch along the circumferential direction.

  In this case, the slit forming blade 60 and the deformed portion forming concave portion 62 are provided along the circumferential direction on the outer peripheral surface of the upper roller 35 so that the slits and the convex deformed portions 59 are alternately formed in the longitudinal direction of the band-shaped metal plate 29. The slit forming blades 61 and the deformed portion forming convex portions 63 are alternately provided on the outer peripheral surface of the lower roller 36 along the circumferential direction.

  When the core material 58 is manufactured, the band-shaped metal plate 29 is continuously supplied between the upper roller 35 and the lower roller 36 while the band-shaped metal plate 29 is cut by the slit forming blades 60 and 61 to form slits. A slit forming step of forming a core piece piece 24 between adjacent slits formed at a predetermined pitch is performed, and the core piece piece 24 of the band-shaped metal plate 29 is formed by the deformed portion forming concave portion 62 and the deformed portion forming convex portion 63. By performing a deforming portion forming step of curving the portion to be formed and forming the convex deforming portions 59 at a predetermined pitch, the core material pieces 24 on which the convex deforming portions 59 are formed and the slits are alternately provided in the longitudinal direction. The manufactured strip-shaped metal plate is manufactured. Then, the core material 58 in which the core material pieces 24 and the space portions 26 on which the convex deformation portions 59 are formed is alternately provided in the longitudinal direction is manufactured by performing a rolling process.

  In the third embodiment described above, each core member piece 24 of the core member 58 is formed with the convex deformed portion 59 having a curved shape in an arc shape. Therefore, a large number of bent portions of the core member piece portion 24 are provided. The strength of the core material 58 (core material piece 24) can be increased.

  Further, since the entire core piece 24 is sandwiched between the upper roller 35 and the lower roller 36 when the slit and the convex deformed portion 59 are formed, the shape of the convex deformable portion 59 and the inclination of the core piece 24 vary. Thus, the core material 14 having a more uniform core material piece 24 can be obtained.

  In each of the first to third embodiments, the slit forming step and the deformed portion forming step are simultaneously performed using a roller in which the slit forming portions and the deformed portion forming portions are alternately provided. Is not limited to this, after executing the slit forming process using a roller provided with a slit forming part, the deformed part forming process is executed using a roller provided with a deforming part forming part, Or after performing a deformation | transformation part formation process using the roller in which the deformation | transformation part formation part was provided, you may make it perform a slit formation process using the roller in which the slit formation part was provided.

  Moreover, you may perform a slit formation process and a deformation | transformation part formation process with processing methods other than a roller. For example, one or both of the slit forming step and the deformed portion forming step may be performed by press working. If it is before performing a rolling process, not only a roller and press work but a slit formation process and a deformation | transformation part formation process can be performed by arbitrary methods.

  Further, in each of the first to third embodiments, the present invention is applied to the trim material attached to the flange provided along the periphery of the trunk opening. However, the present invention is not limited to this. You may apply this invention to the trim material with which the flange provided along the periphery of the various opening parts of a vehicle body, such as a rear door opening part and a back door opening part.

  In the first to third embodiments, the present invention is applied to the trim material in which the cylindrical hollow seal portion is integrally provided on the top wall portion of the mounting portion. However, the present invention is not limited thereto. The present invention can be applied to a trim material integrally provided with a cylindrical hollow seal portion on the side wall portion thereof, or a trim material integrally provided with a non-hollow seal portion not having a hollow portion on the mounting portion, or The present invention may be applied to a trim material that does not include a seal portion (hollow seal portion or non-hollow seal portion).

  In addition, according to the present invention, the shape of each part of the trim material (attachment part, seal part, holding lip, etc.) and the shape of each part of the core material (core material piece part, rolled part, space part, deformed part, etc.) are appropriately selected. Various modifications can be made without departing from the gist of the invention.

  DESCRIPTION OF SYMBOLS 11 ... Trim material, 12 ... Attachment part, 14 ... Core material, 24 ... Core material piece part, 25 ... Rolling part, 26 ... Space part, 27 ... Bending deformation part (deformation part), 28 ... Core material manufacturing apparatus, 29 ... Strip metal plate, 31 ... Slit deforming part roller (slit forming means, deforming part forming means), 32 ... Rolling roller, 33 ... Sensing roller, 37,38 ... Slit forming blade (slit forming part), 39 ... Forming deformed part Groove (deformed part forming part), 40 ... deformed part forming projection (deformed part forming part), 43 ... trim material manufacturing device, 44 ... extrusion molding device, 45 ... curing treatment device, 46 ... heating machine, 47 ... cooling machine 50 ... Trim material cold roll forming device, 52 ... Core material, 53 ... Step difference deformed portion (deformed portion), 54, 55 ... Slit forming blade (slit forming portion), 56, 57 ... Deformed portion forming protrusion (deformed) Part forming part), 58 ... core material, 59 ... convex deformation part (deformation) ), 60, 61 ... slit forming blades (slit forming portion), 62 ... deformable portion forming recess (deformed portion forming portion), 63 ... deformable portion forming a convex portion (deformed portion forming portion)

Claims (4)

A method of manufacturing a long core material embedded in a long trim material made of a polymer material from a long strip-shaped metal plate,
The strip-shaped metal plate is supplied to slit forming means provided with a slit forming portion, and a slit extending in the width direction of the strip-shaped metal plate is left in the longitudinal direction of the strip-shaped metal plate leaving a part in the width direction of the strip-shaped metal plate A slit forming step of forming a core piece between slits adjacent to each other in the longitudinal direction of the band-shaped metal plate formed at a predetermined pitch, and a deformed portion forming means provided with the deformed portion forming portion. A deformed portion forming step of supplying and forming deformed portions extending in the width direction of the band-shaped metal plate at a predetermined pitch in the longitudinal direction of the band-shaped metal plate, thereby forming a core piece piece on which the deformed portions are formed And manufacturing the strip metal plate in which the slits are alternately provided in the longitudinal direction,
A strip-shaped metal plate in which the core piece portion on which the deformed portion is formed and the slit are alternately provided in the longitudinal direction is supplied between the rolling rollers, and the slit is not formed in the width direction of the strip-shaped metal plate. A rolling step in which a portion is rolled in the longitudinal direction of the strip-shaped metal plate to form a rolled portion extending in the longitudinal direction of the strip-shaped metal plate and the slit is expanded in the longitudinal direction of the strip-shaped metal plate to form a space portion; A core material manufacturing method comprising: manufacturing a core material in which the core material pieces on which the deformed portions are formed and the space portions are alternately provided in the longitudinal direction.   The core material manufacturing method according to claim 1, wherein the slit forming unit and the deforming unit forming unit are rollers.   The strip-shaped metal plate is supplied between rollers in which the slit forming portions and the deformed portion forming portions are alternately provided, and the slit forming step and the deformed portion forming step are simultaneously performed. The manufacturing method of the core material of 2. A method for producing a long trim material made of a polymer material in which a long core material is embedded,
Using the core material provided with the deformed portion by being manufactured by the manufacturing method according to claim 1,
While continuously supplying the core material provided with the deforming portion to the extrusion mold for forming the trim material, the trim material is formed by supplying the polymer material to the extrusion mold and the deformation is performed on the trim material. An extrusion process for embedding a core material provided with a portion;
Curing or solidifying the polymer material portion of the trim material;
A trim material manufacturing method comprising: the trim material and a final cross-section forming step of forming the core material embedded in the trim material into a predetermined final cross-sectional shape.

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