Roof molding manufacturing method and roof molding cutting device

Abstract

To provide a manufacturing method of a roof molding which has a flange part and can cut a leg part without a cutting blade for leg part hitting the flange part in the roof molding.SOLUTION: A continuous molded body 100 being a precursor of a roof molding 10 includes a head part 11, a leg part 12, a flange part 13 and a lip part 14. A cutting device includes first and second cutting tools 25L and 25R which have cutting blades 21 for leg part and cutting blades 22 for lip part. A manufacturing method of a roof molding comprises: a continuous molded body supply step of supplying the continuous molded body 100 such that the leg part 12 is arranged between the cutting blades 21 for leg part and the flange part 13 is arranged on the outer side; a leg part cutting step of cutting the leg part 12 by moving the first and second cutting tools 25L and 25R forward; and a lip part cutting step of cutting the lip part 14 by moving the first and second cutting tools 25L and 25R down while being in the state of the leg part cutting step.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a method for manufacturing a roof molding and a roof molding cutting device that are suitable for a roof molding having a flange portion that protrudes from the widthwise side edge of the head portion toward the back surface side. [Background technology]

[0002] An automobile roof is constructed by joining a center roof panel located in the center of the vehicle width direction to side roof panels located on both sides of it using spot welding, etc. In this process, a roof groove is formed along the joint to hide the joint between the two roof panels, and a roof molding is attached to this roof groove to improve the design.

[0003] A typical roof molding includes a head covering the roof groove, legs provided on the rear surface of the widthwise center of the head, and a lip protruding outward in the widthwise direction from the lower end of the legs. The roof molding is manufactured by cutting a continuous extrusion molded body into predetermined dimensions using a cutting device. The roof groove is shallow at both ends in the vehicle's fore-and-aft direction to prevent damage during press molding of the roof panel. Accordingly, the legs and lip are cut away at both longitudinal ends of the roof molding to correspond to the depth of the roof groove.

[0004] A method for cutting a roof molding including such a leg and lip portion, and a cutting device for that purpose, are disclosed, for example, in Patent Document 1. The cutting method described in Patent Document 1 comprises a leg positioning step of positioning the leg of the roof molding between a first cutting blade and a second cutting blade whose cutting edges face each other, a cutting blade opposing and advancing step of advancing the first and second cutting blades toward the leg from either side of the leg so that the cutting edges bite into the leg so as to sandwich the leg, and a cutting blade same direction sliding step of sliding the both cutting blades toward one of the cutting blades while fixing the position of the head and, with the first and second cutting blades biting into the leg.

[0005] In addition, the cutting device described in Patent Document 1 is composed of a cutting blade side mold in which a first cutting blade and a second cutting blade are mounted on a base with their cutting edges facing each other and able to move forward and backward in an approximately horizontal direction, and above the first cutting blade and the second cutting blade, a molding receiving portion is provided which supports the underside of the head on both sides of the legs and allows the legs to hang down between the two cutting edges, and an operating side mold which has a first cam formed with a first contact surface that comes into contact with the first rear pressed surface of the first cutting blade and a second cam formed with a second contact surface that comes into contact with the second rear pressed surface of the second cutting blade, and is capable of moving together with the first and second cams in a direction perpendicular to the direction of movement of the first and second cutting blades. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-300887 Summary of the Invention [Problem to be solved by the invention]

[0007] In addition to the typical roof molding shape with a head, a leg, and a lip, some roof moldings have flanges that protrude from the widthwise side edges of the head toward the rear surface. In this case, the cutting method and cutting device of Patent Document 1 cannot be applied to roof moldings with such flanges. In Patent Document 1, first and second cutting blades are advanced horizontally from the widthwise outer side of the leg to clamp the leg. However, during this process, the flanges located on the widthwise outer side of the leg come into contact with the first and second cutting blades. Therefore, forcibly advancing the first and second cutting blades can damage the flanges or result in unnecessary cutting. Furthermore, positioning the first and second cutting blades in a position that avoids contact with the flanges limits the placement of the first and second cutting blades, making it impossible to cut the leg into the desired shape.

[0008] Therefore, the present invention solves the above-mentioned problem and aims to provide a roof molding manufacturing method that allows the leg cutting blade to cut the legs of a roof molding having a flange portion that protrudes from the widthwise side edge of the head toward the back side without coming into contact with the flange portion, and a roof molding cutting device for this purpose. [Means for solving the problem]

[0009] To achieve this, the present invention employs the following means. (1) A method for manufacturing a roof molding to be attached to a roof groove provided on a roof of a vehicle, comprising: The roof molding includes a head portion covering the roof groove, a leg portion provided on the back surface of the widthwise center portion of the head portion, a flange portion protruding from the widthwise side edge of the head portion toward the back surface side, and a lip portion protruding outward in the width direction from the lower end portion of the leg portion, and is manufactured by cutting an extrusion-molded continuous molding into pieces of predetermined dimensions using a cutting device, the cutting device includes a first cutting tool and a second cutting tool each having a leg cutting blade and a lip cutting blade; The first cutting tool and the second cutting tool are each movable in a horizontal direction and a vertical direction, the leg cutting blades are arranged horizontally facing each other and are formed to be able to reside within a space surrounded by the head, the leg, the flange, and the lip; The lip portion cutting blade is disposed facing downward, a continuous molded body supplying step of supplying the continuous molded body in a longitudinal direction to the cutting device so that the leg portions are disposed between the leg cutting blades and the flange portions are disposed outside the leg cutting blades; a leg cutting step of horizontally advancing the first cutting tool and the second cutting tool relative to each other at a predetermined location on the continuous molded body to cut the leg with the leg cutting blade; a lip portion cutting step in which, while the leg portion cutting step is in the same state, the first cutting tool and the second cutting tool are moved downward to cut the lip portion with the lip portion cutting blade. (2) The cutting device has a third cutting tool equipped with a head cutting blade above the first and second cutting tools, The method for manufacturing a roof molding according to (1) also includes a head cutting step in which, after the continuous molding supply step, the third cutting tool is moved downward and at least the head and flange portions are cut with the head cutting blade. (3) The method for manufacturing a roof molding according to (1) or (2), wherein the cutting device is arranged so as to be continuous with the extrusion molding line that extrudes the continuous molded body. (4) A method for manufacturing a roof molding as described in (1) or (2), in which, after the lip portion cutting process, the leg portion cutting blades of the first cutting tool and the second cutting tool are separated from each other before returning to the continuous molding supply process. (5) A roof molding cutting device that is attached to a roof groove provided on a vehicle roof, The roof molding includes a head portion covering the roof groove, a leg portion provided on the back surface of the widthwise center portion of the head portion, a flange portion protruding from the widthwise side edge of the head portion toward the back surface side, and a lip portion protruding outward in the width direction from the lower end portion of the leg portion, and is manufactured by cutting an extrusion-molded continuous molding into pieces of predetermined dimensions by the cutting device, the cutting device includes a first cutting tool and a second cutting tool each having a leg cutting blade and a lip cutting blade; The first cutting tool and the second cutting tool are each movable in the horizontal direction and the vertical direction, the leg cutting blades are arranged horizontally facing each other and are formed to be able to reside within a space surrounded by the head portion, the leg portion, the flange portion, and the lip portion; The lip portion cutting blade is disposed facing downward, A roof molding cutting device capable of receiving the continuous formed body in the longitudinal direction so that the legs are arranged between the leg cutting blades and the flange portions are arranged outside the leg cutting blades. (6) In a state where the continuous molded body is received so that the legs are disposed between the leg cutting blades and the flange portion is disposed outside the leg cutting blades, the first cutting tool and the second cutting tool are advanced horizontally relative to each other at a predetermined location on the continuous molded body, and the leg portion is cut by the leg portion cutting blade; The roof molding cutting device described in (5) above, wherein the first cutting tool and the second cutting tool are moved downward while being advanced, and the lip portion is cut by the lip portion cutting blade. (7) A roof molding cutting device as described in (5) or (6), having a third cutting tool above the first cutting tool and the second cutting tool, the third cutting tool having a head cutting blade for cutting at least the head portion and the flange portion. [Effects of the Invention]

[0010] According to the means (1), (5), and (6), for a roof molding having a flange portion protruding from the widthwise side edge of the head portion toward the rear surface, the leg portion cutting blade is formed so as to be able to reside within the space surrounded by the head portion, leg portion, flange portion, and lip portion. The continuously molded product is fed longitudinally to the cutting device so that the leg portion is disposed between the leg portion cutting blades and the flange portion is disposed outside the leg portion cutting blades. The first and second cutting tools are then advanced relative to each other to cut the leg portion with the leg portion cutting blade. In this manner, the leg portion is cut while the leg portion cutting blade is located inside the flange portion, so that it does not come into contact with the flange portion when the first and second cutting tools are advanced. Furthermore, in the lip portion cutting process, the lip portion cutting blade is simply moved downward while remaining in the leg portion cutting process, so that the lip portion cutting blade does not come into contact with the flange portion even in the lip portion cutting process. Therefore, the flange portion is not damaged or cut unnecessarily in the leg cutting step and lip cutting step, and the cutting position and cutting shape by the leg cutting blade are not restricted by the presence of the flange portion.

[0011] According to the means (2) to (7), the head and flange portions are cut off by the third cutting tool having a head cutting blade, so that the continuous molding can be cut into a roof molding of a predetermined length.

[0012] According to the method (3), the extrusion molding line and the continuous molding cutting line are on the same line, so that there is no need to move the extrusion-molded continuous molding to the cutting device, thereby improving productivity.

[0013] According to the method (4), even if scrap material (unwanted parts cut from the legs and lip) cut by the leg cutting blade and the lip cutting blade gets caught between the opposing leg cutting blades, the scrap material can be reliably dropped downward by separating the leg cutting blades from each other before returning to the next cycle process. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. 2 is a cross-sectional view taken along line AA in FIG. [Figure 5] FIG. [Figure 6] FIG. 2 is a perspective view of a first cutting tool and a second cutting tool. [Figure 7] FIG. 10 is a front view of the continuous compact supplying step. [Figure 8] FIG. 10 is a side view of a continuous molded body supplying step. [Figure 9] 9A and 9B are cross-sectional views corresponding to the line BB in FIG. 8 showing a leg cutting step and a head cutting step. [Figure 10] FIG. 10 is a side view of the lip portion cutting step. [Figure 11] FIG. 11 is a cross-sectional view taken along line CC in FIG. [Figure 12] FIG. 10 is a perspective view showing a state in which a roof molding and scrap material are produced from a continuous formed body. DETAILED DESCRIPTION OF THE INVENTION

[0015] The present invention will be specifically described below by way of representative examples. (Roof molding) As shown in Figure 1, a roof molding 10 to which the present invention is applicable is attached to the roof of a vehicle such as an automobile 1. The roof panel of the automobile 1 is composed of a center roof panel 2 located in the center of the vehicle width direction and side roof panels 3 disposed on both sides of the center roof panel 2 in the vehicle width direction, and the center roof panel 2 and the side roof panels 3 are joined by spot welding or the like. As a result, linear joints extending in the fore-and-aft direction of the vehicle are present at both side edges of the roof panel, which does not look good as is. Therefore, a roof groove 4 is provided along the joint between the center roof panel 2 and the side roof panel 3, and the roof molding 10 is attached to the roof groove 4 to conceal the joint.

[0016] 2 and 3 show the roof molding 10 of this embodiment. The roof molding 10 of this embodiment includes a head portion 11, leg portions 12 provided on the back surface of the widthwise center portion of the head portion 11, flange portions 13 protruding from the widthwise side edges of the head portion 11 toward the back surface, and lip portions 14 protruding outward in the width direction from the lower ends of the leg portions 12.

[0017] The roof molding 10 is made of a thermoplastic resin such as an olefin-based elastomer (TPO) or polyvinyl chloride resin (PVC resin), or a rubber such as ethylene-propylene-diene rubber (EPDM). It is a long member with a substantially uniform shape in the longitudinal direction, manufactured by cutting a continuous molding 100 (see Figures 8, 12, etc.) formed by extrusion molding into predetermined dimensions. Its length matches the length of the roof groove 4. At both longitudinal ends of the roof molding 10, portions of the legs 12 and lip 14 are removed in accordance with the depth of the roof groove 4 (which is formed shallower than other portions). The roof molding 10 is attached and fixed to the roof groove 4 via an attachment member (not shown).

[0018] The head 11 is substantially flat (slightly curved) and has a width sufficient to cover the upper opening of the roof ditch 4. The leg 12 extends downward from the rear surface of the head 11, and a reinforcing metal core 15 is embedded within the leg 12. The flange 13 also extends downward from the rear surface of the head 11, but is shorter than the leg 12 (approximately half the length of the leg 12 in this embodiment). As shown in FIG. 4 , the flange 13 abuts against the upper surfaces of the center roof panel 2 and the side roof panel 3, preventing rainwater and other moisture from entering the roof molding 10 and the ditch 4. In this embodiment, the center roof panel 2 is designed lower than the side roof panels 3, allowing moisture to flow rearward along the flange 13 on the inside side of the vehicle width direction and preventing rainwater and other moisture from dripping onto the side windows on the outside side of the vehicle width direction. The lip 14 elastically contacts the side wall of the roof ditch 4 when the roof molding 10 is installed in the roof ditch 4.

[0019] (cutting device) 5 and 6 show a cutting device 20 for cutting the continuous molding 100 to a predetermined length to obtain the roof molding 10. The cutting device 20 includes a first cutting tool 25L and a second cutting tool 25R, each equipped with a leg cutting blade 21 and a lip cutting blade 22, and a third cutting tool 26 equipped with a head cutting blade 23. The first cutting tool 25L and the second cutting tool 25R are connected to a cylinder device (not shown) and are movable horizontally and vertically. The first cutting tool 25L and the second cutting tool 25R always move up and down simultaneously at the same height. They are arranged side by side across the width of the continuous molding 100 (roof molding 10), sandwiching the supply line for the continuous molding 100 (described later). The first cutting tool 25L and the second cutting tool 25R are metal blocks, and the leg cutting blade 21 and the lip cutting blade 22 are formed by wire cutting and machining, respectively, so that the upper edges of the opposing surfaces of the first cutting tool 25L and the second cutting tool 25R extend inward in the width direction by a predetermined amount.

[0020] The leg cutting blades 21 are formed facing inward in the width direction so as to face each other horizontally. The projection dimension of the leg cutting blades 21 from the upper edges of the first cutting tool 25L and the second cutting tool 25R may be such that the lip portion 14 fits below the projection dimension between the first cutting tool 25L and the second cutting tool 25R when the leg cutting blades 21 are butted against each other. In other words, when the leg cutting blades 21 are butted against each other, a space is formed below the projection dimension in which the lip portion 14 fits.

[0021] The leg cutting blade 21 is used to cut off the unnecessary leg portion 12 from the continuous molding 100 in a predetermined shape. Therefore, it is formed in a special shape. In this embodiment, the leg cutting blade 21 has a flat blade portion 21a from the midstream to downstream portions of the first cutting tool 25L and the second cutting tool 25R, and a bulging blade portion 21b that bulges upward in the upstream portion. The bulging blade portion 21b is formed integrally with the first cutting tool 25L and the second cutting tool 25R by wire-cutting and machining a metal plate. The bulging blade portion 21b is sized so that it can be present within the space surrounded by the head portion 11, leg portion 12, flange portion 13, and lip portion 14 of the roof molding 10 when the continuous molding 100 is received in the cutting device 20. Reference numeral 24 denotes a slit that receives the head cutting blade 23.

[0022] The lip cutting blades 22 are used to cut off a predetermined size of the unnecessary lip portion 12 from the continuous molding 100. The lip cutting blades 22 are formed on both the upstream and downstream edges of the leg cutting blade 21, facing downward.

[0023] The third cutting tool 26 is disposed above the first cutting tool 25L and the second cutting tool 25R, and the head cutting blade 23 is disposed downward from the underside of the third cutting tool 26. The third cutting tool 26 is connected to a cylinder device (not shown) so that it can be raised and lowered vertically. The third cutting tool 26 is disposed in the widthwise center of the cutting device 20, and the widthwise center line of the head cutting blade 23 coincides with the widthwise center line of the continuously molded product 100 being supplied. In this embodiment, the head cutting blade 23 consists of a single blade arranged side by side in the widthwise direction. Furthermore, with respect to the supply line direction (longitudinal direction) of the continuously molded product 100 as the reference, the head cutting blade 23 is located above the slit 24 formed in the bulging blade portion 21b.

[0024] An upstream seat 30 to which the continuous molded product 100 is supplied is provided upstream of the first cutting tool 25L, the second cutting tool 25R, and the third cutting tool 26. This upstream seat 30 is installed continuously on the same line as the extrusion molding line of the continuous molded product 100 supplied from an extrusion molding machine (not shown). In other words, the cutting device 20 is installed so as to be continuous on the same line as the extrusion molding line of the continuous molded product 100. Therefore, there is no need to move or transport the continuous molded product 100 from the extrusion molding machine to the cutting device 20.

[0025] A downstream base 31 is provided downstream of the first cutting tool 25L, the second cutting tool 25R, and the third cutting tool 26, onto which the cut and manufactured roof molding 10 flows. A groove 32 that matches the shape of the underside of the lip portion 14 is formed in the center of the width direction of the upper surface of the upstream base 30 and the downstream base 31, respectively. The groove 32 of the upstream base 30 and the groove 32 of the downstream base 31 are also on the same line. The upstream base 30 and the downstream base 31 are stationary.

[0026] (Manufacturing method) Next, we will explain the manufacturing method of the roof molding 10. In the initial state of the cutting device 20, the first cutting tool 25L, the second cutting tool 25R, and the third cutting tool 26 are all in their upper limit positions. The first cutting tool 25L and the second cutting tool 25R are also in their retracted positions, and the leg cutting blades 21 are spaced apart.

[0027] <Continuous compact supply process> In this initial state, as shown in Fig. 7, the continuous molded product 100 is continuously supplied in the longitudinal direction from an extruder (not shown) along the groove 32 of the upstream base 30 so that the leg 12 is disposed between the leg cutting blades 21. At this time, the bulging blade portion 21b of the leg cutting blade 21 is present in the space surrounded by the head 11, leg 12, flange 13, and lip 14 of the continuous molded product 100. In other words, the flange 13 is located outward in the width direction from the bulging blade portion 21b of the leg cutting blade 21. In addition, in the vertical direction, the flat blade portion 21a of the leg cutting blade 21 is located between the flange 13 and the lip 14. The front view of the continuous molded product 100 shown in Fig. 7 shows the state before cutting, and the longitudinal tip surface is flat.

[0028] <Leg cutting process> When the continuous molded product 100 is supplied to the cutting device 20 and the dimension of the continuous molded product 100 downstream of the head cutting blade 23 reaches a predetermined dimension as shown in FIG. 8, the first cutting tool 25L and the second cutting tool 25R advance horizontally, i.e., widthwise inward, as shown in FIG. 9. The leg cutting blades 21 then abut against each other, cutting the leg 12 in a manner that removes unnecessary portions. At this time, because the flange 13 is located widthwise outward of the bulging blade portion 21b, the leg cutting blade 21 does not come into contact with the flange 13 when cutting the leg 12. The timing for advancing the first cutting tool 25L and the second cutting tool 25R may be a predetermined time after the continuous molded product 100 is supplied, or may be a timing when the continuous molded product 100 has passed a predetermined distance through the cutting device 20, for example, by installing a proximity sensor in the cutting device 20.

[0029] <Head cutting process> Furthermore, in the leg cutting process, as the first cutting tool 25L and the second cutting tool 25R are advanced, the third cutting tool 26 is simultaneously lowered, as shown in FIG. 9 . The head cutting blade 26 then enters the slit 24 of the leg cutting blade 21, and cuts off the head 11 and flange 13 of the continuous molded product 100. As a result, the roof molding 10 has a predetermined size downstream of the head cutting blade 26. The third cutting tool 23 is lowered only to the extent that the head cutting blade 26 can cut off the head 11 and flange 13 of the continuous molded product 100. The core material 15, which is harder than the other parts, is cut by butting the two leg cutting blades 21 against each other. Alternatively, the third cutting tool 23 may be lowered until it reaches the core material 15, and the core material 15 is cut by the head cutting blade 26.

[0030] The head cutting step may be carried out simultaneously with the leg cutting step, or may be carried out immediately before or after the leg cutting step (simultaneously with the lip cutting step described below), or may be carried out immediately after the lip cutting step. Also, the head cutting step may be carried out independently of the leg cutting step, before the leg cutting step or after the lip cutting step.

[0031] <Lip cutting process> Next, as shown in Figures 10 and 11, while the leg cutting blades 21 are abutted against each other in the leg cutting process, the first cutting tool 25L and the second cutting tool 25R are lowered, whereby the lip cutting blade 22 cuts off the lip portion 14, and the unnecessary portions of the leg portion 12 and lip portion 14 are removed in a predetermined shape.

[0032] Once the unnecessary portions of the leg portion 12 and lip portion 14 have been cut off in the lip portion cutting process, the process returns to the initial state shown in Fig. 7. By repeating this series of steps, it is possible to cut off the unnecessary portions of the leg portion 12 and lip portion 14 from the continuous molded product 100 and simultaneously continuously produce roof moldings 10 of a predetermined length, as shown in Fig. 12. Note that if multiple dancer rollers are provided between the extrusion molding line and the cutting device 20 to provide a temporary stopping route for the supply to the cutting device 20, the cutting process by the cutting device 20 can be carried out smoothly.

[0033] When returning to the initial state from the lip cutting step, the first and second cutting tools 25L and 25R can be raised while the leg cutting blades 21 are abutted against each other, and then the first and second cutting tools 25L and 25R are retracted. However, it is preferable to retract the first and second cutting tools 25L and 25R to separate the leg cutting blades 21 from each other, and then raise the first and second cutting tools 25L and 25R. The latter method ensures that unnecessary scrap material 101 resulting from the resection is dropped downward.

[0034] In the above embodiment, the continuous molded product 100 is continuously supplied in the longitudinal direction from the extrusion molding machine, but the cutting device does not have to be arranged on the same line as the extrusion molding line. For example, the continuous molded product 100 may be extruded and cut to a fixed length, and then supplied to the cutting device 20. In this case, the cutting device 20 does not need to perform the head cutting step. [Explanation of symbols]

[0035] 1. Automobiles 2 Center roof panel 3 Side roof panels 4 Roof grooves 10 Roof molding 11 Head 12 Legs 13 Flange 14 Lip 15 Core material 20 Cutting device 21 Leg cutting blade 21a Flat blade part 21b Bulging blade 22 Lip cutting blade 23 Head cutting blade 24 Slit 25L 1st cutting tool 25R 2nd cutting tool 26 Third cutting tool

Claims

1. A method for manufacturing a roof molding to be attached to a roof groove provided in a roof of a vehicle, comprising: The roof molding includes a head portion covering the roof groove, a leg portion provided on the back surface of the widthwise center portion of the head portion, a flange portion protruding from the widthwise side edge of the head portion toward the back surface side, and a lip portion protruding outward in the width direction from the lower end portion of the leg portion, and is manufactured by cutting an extrusion-molded continuous molding into pieces of predetermined dimensions using a cutting device, the cutting device includes a first cutting tool and a second cutting tool each having a leg cutting blade and a lip cutting blade; the first cutting tool and the second cutting tool are each movable in a horizontal direction and a vertical direction; the leg cutting blades are arranged horizontally facing each other and are formed to be able to reside within a space surrounded by the head, the leg, the flange, and the lip; The lip portion cutting blade is disposed facing downward, a continuous molded body supplying step of supplying the continuous molded body in a longitudinal direction to the cutting device so that the leg portions are disposed between the leg cutting blades and the flange portions are disposed outside the leg cutting blades; a leg cutting step of horizontally advancing the first cutting tool and the second cutting tool relative to each other at a predetermined location on the continuous molded body to cut the leg with the leg cutting blade; a lip portion cutting step in which, while the leg portion cutting step is in the same state, the first cutting tool and the second cutting tool are each moved downward to cut the lip portion with the lip portion cutting blade.

2. the cutting device has a third cutting tool provided with a head cutting blade above the first and second cutting tools, 2. The method for manufacturing a roof molding according to claim 1, further comprising a head cutting step of moving the third cutting tool downward after the continuous molding supply step and cutting at least the head and the flange portion with the head cutting blade.

3. 3. The method for manufacturing a roof molding according to claim 1, wherein the cutting device is disposed on the same line as an extrusion molding line that extrudes the continuous molding.

4. 3. The method for manufacturing a roof molding according to claim 1, wherein after the lip portion cutting step, the leg portion cutting blades of the first cutting tool and the second cutting tool are separated from each other before returning to the continuous molding supply step.

5. A roof molding cutting device that is attached to a roof groove provided in a roof of a vehicle, The roof molding includes a head portion covering the roof groove, a leg portion provided on the back surface of the widthwise center portion of the head portion, a flange portion protruding from the widthwise side edge of the head portion toward the back surface side, and a lip portion protruding outward in the width direction from the lower end portion of the leg portion, and is manufactured by cutting an extrusion-molded continuous molding into pieces of predetermined dimensions by the cutting device, the cutting device includes a first cutting tool and a second cutting tool each having a leg cutting blade and a lip cutting blade; The first cutting tool and the second cutting tool are each movable in a horizontal direction and a vertical direction, the leg cutting blades are arranged horizontally facing each other and are formed to be able to reside within a space surrounded by the head portion, the leg portion, the flange portion, and the lip portion; The lip portion cutting blade is disposed facing downward, A roof molding cutting device capable of receiving the continuous formed body in the longitudinal direction so that the legs are arranged between the leg cutting blades and the flange portions are arranged outside the leg cutting blades.

6. In a state where the continuous molded body is received such that the leg portions are disposed between the leg cutting blades and the flange portions are disposed outside the leg cutting blades, the first cutting tool and the second cutting tool are moved forward in a horizontal direction relative to each other at a predetermined location on the continuous molded body, and the leg portion is cut off with the leg portion cutting blade; 6. The roof molding cutting device according to claim 5, wherein the first cutting tool and the second cutting tool are moved downward while being advanced, and the lip portion is cut by the lip portion cutting blade.

7. 7. The roof molding cutting device according to claim 5, further comprising a third cutting tool above the first and second cutting tools, the third cutting tool having a head cutting blade for cutting at least the head portion and the flange portion.

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