Roof molding manufacturing method and manufacturing device

Abstract

To provide a manufacturing method of a roof molding capable of attaching the roof molding in a manner of causing the roof molding to conform to a roof groove regardless of a cross-sectional shape of the roof molding.SOLUTION: A roof molding 20 of the invention is manufactured through a preparing step, a roof molding arranging step, a roof molding curving step and a pressing portion moving step. In the preparing step, the roof molding 20 is prepared, and in the roof molding arranging step, the roof molding 20 is arranged between a pressing portion 51 and a support portion 61. In the roof molding curving step, the pressing portion 51 presses the roof molding 20 in a width direction, and the support portion 61 presses the roof molding 20, thereby curving a pressed portion of the roof molding 20 so as to have a curvature larger than a set curvature. In the pressing portion moving step, the pressing portion 51 is separated from the roof molding 20. Then, when the roof molding 20 is mounted in a roof groove 12, the roof molding 20 is formed into a set curvature corresponding to a curvature of the roof groove 12.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a method and an apparatus for manufacturing a roof molding to be attached to a roof groove provided in the roof of a vehicle body. [Background technology]

[0002] Conventionally, in the roof of a vehicle body, a roof molding is attached to a roof groove provided at the joint between a roof panel and a roof side panel, thereby concealing the joint (see, for example, Patent Document 1). Note that in the conventional technology described in Patent Document 1, abutment ribs formed on the roof molding are brought into contact with the inner wall surface of the roof groove, thereby allowing the roof molding to conform to the roof groove. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-154555 Summary of the Invention [Problem to be solved by the invention]

[0004] However, roof grooves are sometimes formed with a slight curve in the width direction of the vehicle body. The roof molding described in Patent Document 1 includes a head portion covering the roof groove and legs protruding from the center of the head portion toward the rear surface. If protrusions protruding from both ends of the head portion toward the rear surface were provided, the roof molding would have a rigid cross-sectional shape. Therefore, if the roof molding is formed linearly by extrusion molding, there is a problem in that the roof molding cannot be attached to the roof groove, which is curved in the width direction of the vehicle body.

[0005] The present invention has been made in consideration of the above-mentioned problems, and its object is to provide a manufacturing method and manufacturing apparatus for a roof molding that can be installed so that the roof molding conforms to the roof groove regardless of the cross-sectional shape of the roof molding. [Means for solving the problem]

[0006] In order to solve the above problems, the invention described in Means 1 is a method for manufacturing a roof molding to be attached to a roof groove provided on the roof of a vehicle body and curved in the width direction of the vehicle body, the roof molding having an elongated shape and including a head portion covering the roof groove, legs protruding from the back surface side of the head portion, and a lip portion protruding outward in the width direction of the roof molding from at least one side surface of the tip end of the legs, the method comprising the steps of: preparing the roof molding; Only the legs of and a manufacturing device having a pressing section capable of pressing the roof molding in the width direction, and support sections disposed on both sides of the pressing section in the longitudinal direction of the roof molding, Through a long strip made of a material softer than the roof molding a roof molding placement step of placing the roof molding; Only the legs of The support portion is pressed in the width direction. and the long strip Roof molding The lip portion and the head portion of The gist of the method for manufacturing a roof molding is that it includes a roof molding bending step in which the pressed portion of the roof molding is bent to a curvature greater than a set curvature by pressing the pressing portion in a direction away from the roof molding, and a pressing portion moving step in which the pressing portion is moved in a direction away from the roof molding, and when the roof molding is attached to the roof groove, the roof molding has the set curvature that corresponds to the curvature of the roof groove.

[0007] Therefore, according to the invention described in means 1, even if the roof molding has a rigid cross-sectional shape, it is possible to curve the roof molding so that the curvature of the pressed portion becomes a set curvature. This makes it possible to give the roof molding a shape that makes it easy to follow the roof groove, regardless of the cross-sectional shape of the roof molding.

[0008] Examples of materials for forming the roof molding include thermoplastic elastomers and rubber. Suitable thermoplastic elastomers include olefin thermoplastic elastomers (TPO), styrene thermoplastic elastomers (SBC, TPS), ester thermoplastic elastomers (TPC), polyamide thermoplastic elastomers (PAE), polyvinyl chloride thermoplastic elastomers (TPVC), and urethane thermoplastic elastomers (TPU). Suitable rubbers include natural rubber and ethylene-propylene-diene rubber (EPDM).

[0009] The invention described in Means 2 is characterized in that, in Means 1, the roof molding has an extrusion molded portion that is extruded and an injection molded portion that is injection molded at the end of the extrusion molded portion in the longitudinal direction, and in the roof molding bending process, at least the extrusion molded portion is curved by abutting the pressing portion against the extrusion molded portion and bending it.

[0010] Therefore, according to the invention described in means 2, even if the pressed portion of the roof molding is an extrusion molded portion extruded in a straight line, it can be made into a curved shape. This increases the degree of freedom in the position of the injection molded portion and the extrusion molded portion.

[0011] The invention described in Means 3 is characterized in that in Means 2, when the extrusion molded portion is curved to the set curvature after passing through the roof molding curving process and the pressing portion moving process, the injection molded portion is injection molded into a shape that is pre-curved in the width direction so that the side edges of the extrusion molded portion and the side edges of the injection molded portion form a continuous curved shape.

[0012] Therefore, according to the invention described in means 3, the side edges of the extrusion molded portion and the injection molded portion have a continuous curved shape, which improves the appearance.

[0013] means 1st prize The invention described in 、In the roof molding bending step, a long strip made of a material softer than the roof molding is brought into contact with the side of the roof molding opposite to the side on which the pressing portion is brought into contact, and the support portion presses the roof molding via the long strip. 。

[0014] Therefore, In this configuration This prevents the support portion from hitting the roof molding and damaging the roof molding.

[0015] means 4 The invention described in any one of the first to third aspects is summarized as follows: the support portion includes a roller.

[0016] Therefore, the means 4 According to the invention described in (1), when the roof molding is pressed by the pressing portion, the roller rotates, which makes it easier for the roof molding to deform in the direction pressed by the pressing portion. Moreover, the force pressing the roof molding can be reduced.

[0017] means 5 The invention described in any one of means 1 to 3 is characterized in that the roof molding has a protruding portion that protrudes from at least one of both end portions in the width direction of the head portion toward the back surface.

[0018] Therefore, the means 5 According to the invention described above, the formation of the protrusion increases the rigidity of the roof molding, and even if the roof molding becomes difficult to bend in the width direction, the manufacturing method of the present invention allows the roof molding to be bent reliably.

[0019] means 6 The invention described in A roof molding having an elongated shape, comprising a head portion provided on the roof of a vehicle body and covering a roof groove curved in the width direction of the vehicle body, a leg portion protruding from the back surface side of the head portion, and a lip portion protruding outward in the width direction of the molding from at least one side surface of the tip end of the leg portion, Set curvature corresponding to the roof groove To Bay A manufacturing device for a curved roof molding, comprising: a roof molding placing section for placing the roof molding; and a roof molding placing section disposed on the side of the roof molding placing section, Only the legs ofa pressing portion that can press the roof molding in the width direction, and two roof moldings that are arranged on the opposite side of the pressing portion across the roof molding mounting portion and are located on both sides of the pressing portion in the longitudinal direction of the roof molding. and pressing the lip portion and the head portion of the roof molding via a long strip made of a material softer than the roof molding. The gist of the invention is a roof molding manufacturing device that includes a pressing portion and a support portion, wherein the pressing portion and the support portion are configured to be movable in directions of approaching or separating relatively, and the pressing portion has a pressing surface with a curvature larger than a set curvature.

[0020] Therefore, the means 6 According to the invention described in the above, even if the roof molding has a cross-sectional shape that has rigidity, the roof molding can be curved so that the curvature of the pressed portion becomes a set curvature. This makes it possible to make the roof molding into a shape that easily follows the roof groove, regardless of the cross-sectional shape of the roof molding.

[0021] means 6 The invention described in has a long band made of a material softer than the roof molding at a position facing the side of the roof molding opposite the side where the pressing portion abuts, and the support portion presses the roof molding via the long band.

[0022] Therefore, This configuration According to the present invention, it is possible to prevent the support portion from hitting the roof molding and damaging the roof molding.

[0023] means 7 The invention described in 6 In the present invention, the support portion includes a roller.

[0024] Therefore, the means 7 According to the invention described in (1), when the roof molding is pressed by the pressing portion, the roller rotates, which makes it easier for the roof molding to deform in the direction pressed by the pressing portion. Moreover, the force pressing the roof molding can be reduced. [Effects of the Invention]

[0025] As described above in detail, claims 1 to7 According to the invention described in the above, it is possible to attach the roof molding so that it conforms to the roof groove, regardless of the cross-sectional shape of the roof molding. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a perspective view partially showing a vehicle body to which a roof molding is attached in this embodiment; [Figure 2] FIG. [Figure 3] Cross-sectional view of line III-III in Figure 2. [Figure 4] Cross-sectional view of line IV-IV in Figure 2. [Figure 5] FIG. 2A is a plan view showing a roof molding manufacturing device, and FIG. 2B is a side view showing the roof molding manufacturing device. [Figure 6] FIG. 1A is a plan view illustrating a roof molding arrangement process, and FIG. 1B is a schematic side view of a manufacturing device illustrating the roof molding arrangement process. [Figure 7] FIG. 10( a ) is a plan view illustrating the roof molding bending process, and FIG. 10( b ) is a schematic side view of the manufacturing device illustrating the roof molding arrangement process. [Figure 8] (a) is a plan view showing the roof molding before bending, and (b) is a plan view showing the roof molding after bending. [Figure 9] FIG. 2 is an enlarged plan view showing the problem in part A of FIG. 1. DETAILED DESCRIPTION OF THE INVENTION

[0027] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0028] As shown in Figure 1, a pair of roof grooves 12 extending in the front-to-rear direction of the vehicle body 10 is provided on both left and right sides of the roof 11 of the vehicle body 10. Each roof groove 12 is formed at the joint between a roof panel 13 and a roof side panel 14, and is a recessed groove curved in the width direction of the vehicle body 10. Each roof groove 12 is fitted with an elongated roof molding 20 and a portion of an A-pillar garnish 15, which is also elongated. This conceals the joint between the roof panel 13 and the roof side panel 14.

[0029] As shown in Fig. 2, the roof molding 20 has an extrusion molded portion 21 that is extruded, and an injection molded portion 31 that is injection molded at an end portion in the longitudinal direction of the extrusion molded portion 21 (the lower end portion in Fig. 2). The roof molding 20 of this embodiment is formed using ethylene-propylene-diene rubber (EPDM), olefin-based thermoplastic elastomer (TPO), or the like. However, it is preferable that the extrusion molded portion 21 and the injection molded portion 31 are formed using the same material to facilitate bonding between them.

[0030] As shown in Fig. 3, the injection-molded portion 31 is formed at the end of the extrusion-molded portion 21, and an insert item 33 is bonded to the entire back surface 32 of the injection-molded portion 31. The insert item 33 is provided with a protrusion 34 that protrudes toward the bottom 16 of the roof groove 12, and a side surface 34a of the protrusion 34 is provided with a locking portion (not shown) to which a clip 17 attached to the bottom 16 is locked. The injection-molded portion 31 is formed, for example, from an elastic polymer material having a durometer hardness (type A) of 95 degrees as defined in JIS K6253. The insert item 33 is formed, for example, from polyacetal resin (POM).

[0031] 4, the extrusion 21 of this embodiment includes a head 22 that covers the roof groove 12, legs 23 that protrude from the back surface 22a of the head 22, and lip portions 24 that protrude outward in the width direction of the roof molding 20 from both side surfaces of the tip of the legs 23. The roof molding 20 also includes protrusions 25 that protrude outward in the width direction of the roof molding 20 from both ends of the head 22 in the width direction toward the back surface 22a. In addition, a metal core material 26 formed in a strip shape is embedded in the leg portions 23 along the longitudinal direction of the roof molding 20 to suppress linear expansion of the roof molding 20.

[0032] The head 22, leg 23, and protrusion 25 are formed, for example, from an elastic polymer material having a durometer hardness (Type A) of 90 degrees as defined in JIS K6253. The lip 24 is formed, for example, from an elastic polymer material having a durometer hardness (Type A) of 75 degrees as defined in JIS K6253. In order to improve the product life of the roof molding 20, a cover layer made of an elastic material such as a polyolefin-based thermoplastic elastomer that has excellent weather resistance and abrasion resistance may be provided on the surface of the head 22.

[0033] Next, the manufacturing device 40 for the roof molding 20 will be described.

[0034] As shown in Fig. 5, the manufacturing apparatus 40 includes a base 41, a press plate 51 (pressing portion), and a pair of support portions 61. The base 41 has a roof molding mounting plate 42 (roof molding mounting portion) on which the roof molding 20 is placed. The roof molding mounting plate 42 is supported by a pair of mounting plate support beams 43, 44 provided on the base 41. The mounting plate support beams 43, 44 are rod-shaped members arranged parallel to each other. A molding positioning member 45 is provided on one of the support beams 44, which abuts against an end face (the end face on the injection molding section 31 side) of the roof molding 20 that has been transported onto the roof molding mounting plate 42, thereby positioning the roof molding 20.

[0035] An actuator 46 (an air cylinder in this embodiment) is installed on the base 41. The actuator 46 includes a rail portion 47, and a slider portion 48 that moves in the extending direction of the rail portion 47 is provided on the rail portion 47. The actuator 46 has a structure in which the rail portion 47 is supported on the base 41 via a pair of support columns 49 (only one side is shown in FIG. 5(b)) provided on both ends of the rail portion 47. The actuator 46 is controlled by a CPU of a control device (not shown).

[0036] 5, a pressure plate 51 is attached to the slider portion 48 of the actuator 46. The pressure plate 51 is disposed above and to the side of the roof molding mounting plate 42 (to the right in FIG. 5(b)), and is capable of pressing the leg portion 23 of the roof molding 20 in the width direction (see FIGS. 6(b) and 7(b)). The pressure plate 51 has a generally rectangular shape in a plan view, and the surface (edge) facing the roof molding mounting plate 42 forms a convex curved surface 51a, which is a pressing surface that presses the roof molding 20. The convex curved surface 51a has a curvature (radius of curvature R = 150 mm in this embodiment) that is larger than a preset curvature (radius of curvature R = 1000 mm in this embodiment) that is set as the curvature of the pressing portion of the roof molding 20.

[0037] The pair of support portions 61 are arranged on opposite sides of the pressure plate 51 across the roof molding mounting portion 42a of the roof molding mounting plate 42. Furthermore, both support portions 61 are arranged on both sides (left and right sides in FIG. 5(a) ) of the pressure plate 51 in the longitudinal direction of the roof molding 20 mounted on the roof molding mounting portion 42a (i.e., the width direction of the pressure plate 51). Specifically, each support portion 61 is configured to include a roller 62. The roller 62 is cylindrical and rotates around a rotation shaft 63 extending vertically. Note that the lower end of the rotation shaft 63 is connected to the roof molding mounting plate 42, and the upper end of the rotation shaft 63 is connected to the pressure plate 64, so that each support portion 61 is immovable. Then, by moving the pressure plate 51 forward (moving downward in Figure 5(a)) or backward (moving upward in Figure 5(a)), the pressure plate 51 and the support part 61 can be moved in a direction in which they approach or move away from each other.

[0038] As shown in FIG. 5, a long strip 71 is provided on the roof molding 20 at a position facing the side surface 20a opposite the side against which the pressure plate 51 abuts. The long strip 71 is made of a resin material that is softer than the roof molding 20. The length of the long strip 71 is longer than the distance between the pair of rollers 62. The width (height) of the long strip 71 is equal to the height of the rollers 62. Both rollers 62 (both support portions 61) press down on the roof molding 20 via the long strip 71. The upper center portion of the long strip 71 is held by a long strip holding member 65 that extends downward from one edge (the edge on the pressure plate 51 side) of the pressure plate 64.

[0039] Next, a method for manufacturing the roof molding 20 will be described.

[0040] First, a preparation step is performed to prepare the roof molding 20. Specifically, the extrusion-molded portion 21 is first extrusion-molded, and then the extrusion-molded portion 21 and the insert item 33 are set in the cavity of an injection mold (not shown). Next, the injection mold is closed, and then molten material (EPDM, TPO, etc.) for the injection-molded portion 31 is injected into the cavity through a gate (not shown) provided in the injection mold, filling the cavity with the material for the injection-molded portion 31. As a result, the injection-molded portion 31 is injection-molded at one end of the extrusion-molded portion 21, and the roof molding 20 is formed in which the insert item 33 and the extrusion-molded portion 21 are joined by the injection-molded portion 31. Then, the injection mold is opened, and the roof molding 20 is removed from the cavity.

[0041] The injection-molded portion 31 is injection-molded in advance into a shape curved in the width direction. As a result, when the extruded portion 21 is curved to a set curvature through the roof molding bending process and the pressing portion moving process described below, the side edge 21a of the extruded portion 21 and the side edge 31a of the injection-molded portion 31 form a continuous curved shape. Therefore, the boundary B1 (see FIG. 2) between the extruded portion 21 and the injection-molded portion 31 forms a gently curved shape without any unnatural bending, giving the roof molding 20 a good appearance.

[0042] In the subsequent roof molding placement process, the worker places the roof molding 20 on the roof molding placement portion 42a of the roof molding placement plate 42 between the press plate 51 and the support portion 61 of the manufacturing apparatus 40, with the convex curved surface 51a of the press plate 51 facing the leg portion 23 of the roof molding 20 (see FIG. 6). At this time, the roof molding 20 is positioned by applying the molding positioning member 45 to the end face of the roof molding 20 (see FIG. 6(a)). In addition, a long strip 71 is placed in a position facing the side surface 20a of the roof molding 20 opposite the side that contacts the press plate 51 (see FIG. 6(b)).

[0043] In the subsequent roof molding bending process, when an operator operates a start switch (not shown), the CPU of the control device outputs a drive signal to the actuator 46, causing the pressure plate 51 to move forward (downward in FIG. 7(a) and to the left in FIG. 7(b)). As a result, the legs 23 of the roof molding 20 are pressed widthwise by the pressure plate 51. As a result, the side surfaces 20a of the roof molding 20 come into contact with the long bands 71, and the pair of rollers 62 (support portions 61) press down on the roof molding 20 via the long bands 71 ​​(see FIG. 7). Of the extrusion-molded portion 21 and injection-molded portion 31 that make up the roof molding 20, the pressure plate 51 comes into contact with the extrusion-molded portion 21 and bends the extrusion-molded portion 21, so only the extrusion-molded portion 21 is bent. As a result, the extruded portion 21, which is the pressed portion of the roof molding 20, curves to a curvature larger than the set curvature described above (in this embodiment, the radius of curvature is R = 150 mm) (see Figure 7(a)). Also, because the long strip 71 is made of a material that is softer than the roof molding 20, the long strip 71 curves together with the roof molding 20. Furthermore, because the pair of rollers 62 presses the roof molding 20 via the long strip 71, damage to the roof molding 20 can be prevented.

[0044] In the subsequent pressing portion movement process, the CPU outputs a drive signal to the actuator 46, controlling the pressing plate 51 to move backward (in the direction away from the roof molding 20 (upward in FIG. 7(a))). This causes the roof molding 20 to return and deform so that the curvature of the pressed portion (extrusion portion 21) becomes smaller (i.e., the radius of curvature R becomes larger).

[0045] After removing the roof molding 20 from the manufacturing apparatus 40, leaving the roof molding 20 further reduces the curvature of the pressed portion, and the roof molding 20 assumes the set curvature corresponding to the curvature of the roof groove 12. As shown in FIG. 8(a), before the roof molding curving step, the extrusion-molded portion 21 of the roof molding 20 is straight. However, as shown in FIG. 8(b), when the roof molding 20 is fitted into the roof groove 12 (when it is curved to the set curvature), the curvature L1, measured from the curvature start point 21b of the extrusion-molded portion 21 to the end 31b of the injection-molded portion 31, is, for example, 16 mm. In this case, immediately after the pressing plate 51 is separated from the roof molding 20 in the pressing-portion moving step, the curvature L1 is, for example, 18 mm. After about one hour, the curvature L1 becomes 16 mm due to changes over time. Therefore, when the roof molding 20 is fitted into the roof groove 12, it is advisable to set the curvature of the roof molding 20 in the roof molding bending step so that the roof molding 20 is curved to a set curvature.

[0046] The roof molding 20 is then attached to the roof groove 12 of the roof panel 13. Specifically, by pushing the roof molding 20 into the roof groove 12, the clips 17 of the roof panel 13 are engaged with the engaged portions of the roof molding 20. As a result, the roof molding 20 is attached to the roof groove 12.

[0047] Therefore, according to this embodiment, the following effects can be obtained.

[0048] (1) The roof molding 20 of this embodiment has a rigid cross-sectional shape because it includes the protrusion 25 in addition to the head 22, leg 23, etc. Therefore, if the roof molding 20 is formed linearly by extrusion molding, it cannot be attached so as to follow the roof groove 12 that curves in the width direction of the vehicle body 10. As a result, a step A1 (see FIG. 9) is created between the roof molding 20 attached to the roof groove 12 and the A-pillar garnish 15, which results in an unattractive appearance.

[0049] On the other hand, in this embodiment, even if the roof molding 20 has a rigid cross-sectional shape, by using the manufacturing device 40 for the roof molding 20, the roof molding 20 can be curved so that the curvature of the pressed portion (extrusion molded portion 21) becomes a set curvature. As a result, regardless of the cross-sectional shape of the roof molding 20, the roof molding 20 can be shaped to follow the roof groove 12, thereby preventing the occurrence of the step A1 described above.

[0050] (2) Normally, when the roof molding 20 is made into a curved shape, it is necessary to lengthen the injection-molded portion 31 that can be molded into a curved shape out of the extrusion-molded portion 21 and injection-molded portion 31 that make up the roof molding 20. However, in this embodiment, even an extrusion-molded portion 21 that is extrusion-molded into a straight shape can be made into a curved shape. This allows the injection-molded portion 31 to be shortened, increasing the degree of freedom in the position of the boundary B1 (see FIG. 2) between the injection-molded portion 31 and the extrusion-molded portion 21.

[0051] (3) In this embodiment, the lip portion 24 of the roof molding 20 is formed of an elastic polymer material having a lower hardness than the head portion 22, the leg portion 23, and the protrusion portion 25, so that the lip portion 24 can be deformed with a small force. Therefore, the roof molding 20 can be attached to the roof groove 12 with a small force.

[0052] (4) In this embodiment, the long band holding member 65 holds only a portion of the long band 71, rather than the entire long band 71, ensuring the freedom of deformation of the long band 71 even when holding the long band 71. Therefore, in the roof molding bending process, the long band 71 bends together with the roof molding 20 and does not hinder the bending of the roof molding 20.

[0053] The above embodiment may be modified as follows.

[0054] In the above embodiment, the support plate 61 of the manufacturing device 40 is configured to press the leg portion 23 of the roof molding 20 in the width direction. However, the support plate 61 may be configured to press other portions of the roof molding 20, such as the head portion 22, the lip portion 24, and the protrusion portion 25.

[0055] Although the manufacturing apparatus 40 in the above embodiment has two support parts 61, it may have three or more support parts 61.

[0056] The support portion 61 in the above embodiment is configured to include the rollers 62. However, the support portion 61 may be configured to include other members, such as columnar members or plate-like members, instead of the rollers 62. In other words, the support portion 61 does not have to be a rotating member.

[0057] In the manufacturing apparatus 40 of the above embodiment, the pressing plate 51 and the support portion 61 can be moved in a direction in which they approach or separate relatively by moving the pressing plate 51. However, the pressing plate 51 and the support portion 61 may be moved in a direction in which they approach or separate relatively by moving the support portion 61 instead of the pressing plate 51. Furthermore, the pressing plate 51 and the support portion 61 may be moved in a direction in which they approach or separate relatively by moving both the support plate 51 and the support portion 61.

[0058] In the above embodiment, the pressing plate 51 is moved using the actuator 46, but the pressing plate 51 may be moved by manual operation. Also, in the above embodiment, the roof molding 20 is transported onto the roof molding placing plate 42 by manual operation, but the roof molding 20 may be transported by using an actuator.

[0059] The roof molding 20 in the above embodiment is made up of the extrusion molded portion 21 and the injection molded portion 31. However, the roof molding 20 may be made up of the extrusion molded portion 21 only.

[0060] In the roof molding bending process of the above embodiment, only the extrusion molded portion 21 is bent by contacting the pressing plate 51 with the extrusion molded portion 21. However, both the extrusion molded portion 21 and the injection molded portion 31 (and the insert part 33) may be bent.

[0061] The roof molding 20 in the above embodiment was provided with lip portions 24 that protrude outward in the width direction of the roof molding 20 on both side surfaces of the tip of the leg portion 23. However, the roof molding 20 may be provided with a lip portion 24 that protrudes outward in the width direction of the roof molding 20 on only one side surface of the tip of the leg portion 23. Also, the roof molding 20 in the above embodiment was provided with protruding portions 25 on both end portions in the width direction of the head portion 22. However, the roof molding 20 may be provided with a protruding portion 25 on only one end portion in the width direction of the head portion 22.

[0062] Next, in addition to the technical ideas set forth in the claims, the technical ideas grasped by the above-described embodiments will be listed below.

[0063] (1) A method for manufacturing a roof molding according to any one of claims 1 to 3, wherein in the roof molding bending step, the leg portion of the roof molding is pressed in the width direction by the pressing portion. (2) A method for manufacturing a roof molding according to any one of claims 1 to 3, characterized in that in the pressing portion moving step, the pressing portion is moved in a direction away from the roof molding, thereby causing the roof molding to return to its original shape. (3) In claim 7 or 8, the roof molding manufacturing device is characterized in that the roof molding has a head portion that covers the roof groove and a leg portion that protrudes from the back side of the head portion, and the pressing portion is capable of pressing the leg portion of the roof molding in the width direction. [Explanation of symbols]

[0064] 10...Body 11...Roof 12...Roof groove 20...Roof molding 20a...Side surface of the roof molding opposite to the side where the pressing portion abuts 21...Extrusion molding section 21a...side edge of extrusion molding part 22…Head 22a...back of head 23...legs 24...Lip 25...Protrusion 31...Injection molding section 31a...Side edge of injection molded part 40...Roof molding manufacturing equipment 42...Roof molding mounting plate as a roof molding mounting portion 51...Pressing plate as pressing part 51a...Convex curved surface as pressing surface 61...Support part 62...Roller 71...Long belt

Claims

1. A method for manufacturing a roof molding to be attached to a roof groove provided on a roof of a vehicle body and curved in the width direction of the vehicle body, comprising: the roof molding is elongated and includes a head portion covering the roof groove, a leg portion protruding from the back surface side of the head portion, and a lip portion protruding outward in the width direction of the roof molding from at least one side surface of the tip end of the leg portion, a preparation step of preparing the roof molding; a roof molding placement step in which the roof molding is placed between a pressing section capable of pressing only the leg section of the roof molding in the width direction of the manufacturing device and support sections disposed on both sides of the pressing section in the longitudinal direction of the roof molding, via a long strip made of a material softer than the roof molding; a roof molding bending process in which the pressing portion presses only the leg portion of the roof molding in the width direction, and the support portion and the long band hold down the lip portion and the head portion of the roof molding, thereby bending the pressed portion of the roof molding to a curvature larger than a set curvature; a pressing portion moving step of moving the pressing portion in a direction away from the roof molding; Including, When the roof molding is attached to the roof groove, the roof molding is set to the set curvature corresponding to the curvature of the roof groove. A method for manufacturing a roof molding comprising the steps of:

2. The roof molding has an extrusion molded portion that is extruded and an injection molded portion that is injection molded at an end portion in a longitudinal direction of the extrusion molded portion, In the roof molding bending step, the pressing portion is brought into contact with the extrusion portion to bend the extrusion portion, thereby bending at least the extrusion portion.

2. The method for manufacturing a roof molding according to claim 1.

3. 3. A method for manufacturing a roof molding as described in claim 2, wherein the injection molded portion is injection molded into a shape that is curved in the width direction in advance so that when the extrusion molded portion is curved to the set curvature after going through the roof molding bending process and the pressing portion moving process, the side edges of the extrusion molded portion and the injection molded portion form a continuous curved shape.

4. 4. The method for manufacturing a roof molding according to claim 1, wherein the support portion includes a roller.

5. 4. The method for manufacturing a roof molding according to claim 1, wherein the roof molding has a protrusion protruding from at least one of both widthwise ends of the head portion toward the rear surface.

6. A roof molding manufacturing device that curves a long roof molding having a head portion that is provided on the roof of a vehicle body and covers a roof groove that is curved in the width direction of the vehicle body, a leg portion that protrudes from the back side of the head portion, and a lip portion that protrudes outward in the width direction of the molding from at least one side of the tip of the leg portion, to a set curvature that corresponds to the roof groove, a roof molding placement portion on which the roof molding is placed; a pressing portion disposed on a side of the roof molding mounting portion and capable of pressing only the leg portion of the roof molding in a width direction; support portions that are arranged on the opposite side of the pressing portion with the roof molding placing portion interposed therebetween, are positioned on both sides of the pressing portion in the longitudinal direction of the roof molding, and press the lip portion and the head portion of the roof molding via long strips made of a material softer than the roof molding; Equipped with The pressing portion and the supporting portion are configured to be movable in a direction in which they approach or move away from each other, The pressing portion has a pressing surface having a curvature larger than a set curvature. A roof molding manufacturing device characterized by:

7. 7. The roof molding manufacturing device according to claim 6, wherein the support portion includes a roller.

Images