JP3992266B2 - Decorative sheet terminal processing method and crimping die used therefor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an interior part suitable for a door trim, a rear corner trim, and the like, and a terminal processing method for a decorative sheet capable of finishing the terminal portion of the decorative sheet in a good appearance when the decorative sheet is crimped to a part of the trim body surface. And a crimping die used for the same.
[0002]
[Prior art]
FIG. 10 is a front view showing a vehicle door trim 1 mounted on the interior surface of a door inner panel (not shown) as a representative automotive interior part. In the drawing, the vehicle door trim 1 has an appropriate shape retaining shape. A decorative sheet 3 such as a cloth is attached to a part of the surface of the door trim main body 2 (inscribed portion) having the performance and the mounting rigidity to the vehicle body panel, improving the appearance performance and ensuring a good touch feeling. .
[0003]
The door trim main body 2 is formed with a grain groove 2a having a predetermined groove width and groove depth so that the cut end of the decoration sheet 3 is not exposed to the outside, and the decoration sheet is formed in the grain groove 2a. Three peripheral terminals 3a are press-fitted.
[0004]
As shown in FIG. 11A, the decorative sheet 3 is fixed to the door trim main body 2 by crimping. After the door trim main body 2 is set on the lower crimping die 4, the decorative sheet 3 is set from the upper side and crimped. The upper mold 5 is lowered by a cylinder (not shown), and the decorative sheet 3 is fixed to the surface of the door trim body 2 by applying a predetermined pressing pressure.
[0005]
Further, a peripheral edge terminal 3a of the decorative sheet 3 faces the opening of the groove above the wood grain groove 2a formed in the door trim main body 2, and the wood grain groove 2a is decorated by lowering the wood grain bar 6. The peripheral edge terminal 3a of the sheet 3 is press-fitted. First, as shown in FIG. 11 (b), the wood grain bar 6 descends all at once to the bottom of the wood grain groove 2a, and then, as shown in FIG. 11 (c). In this manner, the peripheral edge 3a of the decorative sheet 3 is press-fitted into the graining groove 2a by performing a pumping process in which the graining bar 6 is moved up and down twice in the graining groove 2a.
[0006]
[Problems to be solved by the invention]
Thus, in the conventional terminal processing method of the decorative sheet 3, the peripheral edge 3a of the decorative sheet 3 is processed by press-fitting the wood grain bar 6 into the wood grain groove 2a. As shown in FIG. 11, when the wood grain bar 6 descends to the bottom of the groove all at once, the clearance between the inner wall surface of the wood grain groove 2 a and the wood grain bar 6 (indicated by the symbol d in FIG. 11B) is smaller than the thickness of the skin 3. Therefore, the decorative sheet 3 is stretched, and as shown in FIG. 12, the decorative sheet 3 at the corner portion 2b is likely to sag R (indicated by symbol “a” in the figure), leading to a decrease in appearance appearance. ing.
[0007]
In addition, since the decorative sheet 3 is stretched, the shape of the decorative sheet 3 changes, making it difficult to align with the trim body 2, and the cut end of the decorative sheet 3 (indicated by symbol b in FIG. 12) at the bottom of the grained groove 2a. ) Is exposed, and this also causes a decrease in appearance.
[0008]
The present invention has been made in view of such circumstances, and is a decorative sheet that can be finely textured in a decorative sheet, improve the appearance performance in the textured portion, suppress the elongation of the decorative sheet, and achieve good alignment. It is an object of the present invention to provide a terminal treatment method and a crimping die used therefor.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 of the present application is to fix a decorative sheet to a part of the surface of a trim body molded into a required shape, and to trim the peripheral end of the decorative sheet. In the terminal processing method of the decorative sheet that is press-fitted with a grained bar into the grained groove formed in the main body, after lowering the grained bar to the middle part of the depth of the grained groove, the grained bar is raised, and then In this case, the graining bar is inserted again into the graining groove, and the pumping process for press-fitting the peripheral edge into the graining groove is performed while pushing the peripheral edge of the decorative sheet.
[0010]
In the invention according to claim 2 of this application, the graining bar is set by shifting the center axis of the graining bar slightly outward with respect to the groove width center line of the graining groove, or the inside of the graining bar is on the tip side. It is characterized by being set in a tapered shape.
[0011]
Here, the meaning of the outside and the inside of the graining bar is defined as the side facing the decorative sheet to be grained, and the opposite side as the outside.
[0012]
The invention according to claim 3 of the present application is such that a decorative sheet is crimped and fixed to a part of the surface of the trim main body formed into a required shape, and the peripheral edge of the decorative sheet is formed in the trim main body. In the terminal processing method for a decorative sheet that is press-fitted with a wood grain bar, the wood grain bar is divided into an outer part and an inner part along the groove width direction of the wood grain groove, and the peripheral edge of the decorative sheet is divided into the groove depth of the wood grain groove. When press-fitting to the middle part, after lowering only the outside part of the graining bar and inserting it to the middle part, raising the outside part and integrating the outside part and the inside part, by pumping operation of the graining bar The peripheral edge of the decorative sheet is press-fitted into the wood groove.
[0013]
Here, the meaning of the outer part and the inner part of the graining bar is defined as the inner part on the side facing the decorative sheet to be grained, and the outer part on the opposite side.
[0014]
In the invention according to claim 4 of this application, a decorative sheet is pressure-bonded to a part of the surface of the trim main body formed into a required shape, and the peripheral edge of the decorative sheet is formed in the trim main body groove. In the terminal processing method of the decorative sheet that is press-fitted into the inside of the wood-embedding bar, the wood-working bar is fixed to the lower surface of the lifting table in the crimping upper mold, and a crimping core is attached to the lifting table via a buffer spring. In addition to being fixed, a multi-stage stopper mechanism is provided between the lifting table and the crimping core, and the operation of this multi-stage stopper mechanism adjusts the stroke of the crimping core in multiple stages, and relative In addition, the graining bar is press-fitted into the graining groove in multiple stages, and the peripheral edge of the decorative sheet is pressed in multiple stages.
[0015]
The crimping die for carrying out the above method is a crimping die that press-fits the decorative sheet to a predetermined position on the surface of the trim body and press-fits the peripheral edge of the decorative sheet into the grain groove of the trim body. The lower crimping die for setting the trim body and the upper crimping die located above the trim body, the crimping core corresponding to the surface occupied by the decorative sheet having a buffer spring on the lifting table. The multi-stage stopper mechanism is interposed between the lifting table and the crimping core, and a grained bar is provided along the outer periphery of the crimping core.
[0016]
Then, according to the present invention, when the peripheral edge of the decorative sheet that is crimped and fixed to a predetermined surface of the trim body is press-fitted into the wood groove provided in the trim body, there are many steps such as two stages and three stages. Since the decorative sheet is press-fitted at the stage, the decorative sheet is not stretched, and a fine graining process is possible.
[0017]
Furthermore, if the center axis of the graining bar is shifted outward from the center axis of the grain width in the graining groove, or if the inner part of the graining bar is set to taper toward the tip side, the inner wall of the graining groove and the graining bar The clearance between the edges of the graining groove is such that the skin is not stretched, the R sag at the corner of the graining groove is suppressed, and the cut end of the decorative sheet is not noticeable at the bottom of the graining groove. Can improve the appearance.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a decorative sheet terminal processing method and a crimping die used in the terminal processing method according to the present invention will be described in detail with reference to the accompanying drawings.
[0019]
FIG. 1 is a front view showing an automobile door trim manufactured by using the method of the present invention, FIG. 2 is a cross-sectional view showing a configuration of the door trim for the automobile, and FIG. 3 is for crimping used in the first embodiment of the method of the present invention. FIG. 4 is a schematic diagram showing the structure of the mold, FIG. 4 is an explanatory view showing the structure of the graining bar in the crimping mold shown in FIG. 3, and FIG. 5 shows a state where the trim body and the decorative sheet are crimped by the crimping mold. FIG. 6 is an explanatory diagram showing a terminal processing method according to the method of the present invention. FIG. 7 is an explanatory view showing a second embodiment of the terminal processing method according to the present invention. FIG. 8 shows a third embodiment of the method of the present invention, and shows an outline of the configuration of a crimping die used for the method. FIG. 9 and FIGS. 9A to 9C are explanatory diagrams of each process in which the decorative sheet terminal processing is performed using the crimping die.
[0020]
First, an object to which the present invention is applied will be described by taking an automobile door trim as an example.
[0021]
1 and 2, an automotive door trim 10 is provided with an inscribed portion on the surface of a door trim body 11 made of a synthetic resin molded body of polypropylene resin (hereinafter referred to as PP resin) mixed with a filler such as talc. A decorative sheet 20 made of a cloth sheet such as a cloth is attached to the part.
[0022]
More specifically, in this embodiment, the door trim main body 11 is composed of an upper and lower divided body of a trim upper 11a and a trim lower 11b. The trim upper 11a and the trim lower 11b are formed into a desired curved surface by injection molding or mold press molding. It is molded into a shape.
[0023]
The trim seat 11 is mounted on the trim upper 11a, while the trim lower 11b swells in the center toward the passenger compartment, armrest 12 so that the passenger can rest on his elbows, and the door pocket 13 on the lower side and adjacent to it. Thus, the speaker grille 14 is formed. In addition, a wood groove 15 is formed in the trim upper 11 a along the peripheral edge of the decorative sheet 20.
[0024]
Note that the door trim main body 11 is not limited to the above-described upper and lower divided parts, and may be a single molded body. Therefore, the object to which the decorative sheet 20 is attached will be described as the door trim main body 11 hereinafter.
[0025]
In the present embodiment, the decorative sheet 20 is made of cloth, and is adhered and fixed to the inscribed portion of the door trim main body 11 via the adhesive layer 21. The peripheral end 22 is press-fitted into the wood grain groove 15 of the door trim main body 10. As a result, the peripheral portion of the decorative sheet 20 is finished with a good appearance.
[0026]
By the way, the method of the present invention relates to a terminal processing method of the decorative sheet 20 that can press-fit the peripheral terminal 22 of the decorative sheet 20 into the wood groove 15 of the door trim main body 11 in an appearance. The configuration of the crimping die 30 used in the embodiment will be described with reference to FIGS. 3 and 4.
[0027]
In the drawing, the pressure-bonding die 30 is generally composed of a pressure-bonding upper mold 40 and a pressure-bonding lower mold 50, and the pressure-bonding upper mold 40 can be moved up and down by a predetermined stroke with a lifting table 41 connected to a lifting cylinder 42. A crimping core 43 is attached to the lifting table 41 via a buffer spring 44, and a wood bar 45 is attached to the lower surface of the lifting table 41 via a bracket 46 on the outer periphery of the crimping core 43. Yes.
[0028]
As shown in FIG. 4, the mounting position of the wood grain bar 45 is the center axis P1 of the wood grain bar 45 with respect to the groove width center line P of the wood grain groove 15 of the trim body 11 set in the lower die 50 for crimping. Is set on the outer side by the clearance indicated by symbol c in the figure (the side opposite to the side facing the decorative sheet 20). In this embodiment, this clearance c is 0.5 mm.
[0029]
Next, an embodiment in which the terminal processing of the decorative sheet 20 is performed using the crimping die 30 will be described with reference to FIGS. 5 and 6. First, the door trim main body 11 is placed on the die surface of the crimping lower die 50. Further, after the decorative sheet 20 is set from the upper side, the elevating cylinder 42 in the upper crimping die 40 is operated, and first, when the predetermined stroke elevating table 41 is lowered, a predetermined press pressure is applied from the crimping core 43, The decorative sheet 20 is fixed to the surface of the door trim body 11 by pressure bonding. At this time, the tip of the graining bar 45 has not yet entered the graining groove 15.
[0030]
Further, when the lifting cylinder 42 is operated and the lifting table 41 is lowered, the buffer spring 44 is compressed and deformed, so that the crimping core 43 remains stopped. The wood grain bar 45 is lowered.
[0031]
That is, as shown in FIG. 6A, in the first stage, the tip of the graining bar 45 descends to the middle part of the depth of the graining groove 15 of the door trim main body 11, so that the peripheral edge 22 of the decorative sheet 20 is It press-fits into the graining groove 15 to the middle position of the graining groove 15. At this time, since the wood grain bar 45 is set to be shifted outward, a sufficient clearance is secured between the inner wall surface 15a of the wood grain groove 15 and the wood grain bar 45. This is the first stage.
[0032]
Thereafter, as shown in FIG. 6B, the elevating cylinder 42 is operated to raise the elevating table 41 and the wood grain bar 45. At this time, the buffering spring 44 is slightly extended, and the pressure is being applied. The child 43 itself remains stopped.
[0033]
Further, the lifting / lowering cylinder 42 is operated and the lifting / lowering table 41 is lowered, and the pumping operation is performed once or twice as shown in FIGS. 6 (c) and 6 (d). The terminal processing is completed by directly pressing the peripheral terminal 22 of the decorative sheet 20.
[0034]
As described above, in the first stage, after the peripheral edge 22 of the decorative sheet 21 is press-fitted to the middle position of the wood grain groove 15, the wood grain bar 45 is raised, and then the pumping operation of the decorative sheet 20 is performed once or twice. Since the peripheral terminal 22 is gradually press-fitted, tension is not applied to the decorative sheet 20, the elongation of the decorative sheet 20 is suppressed, and the alignment with the door trim body 11 can be easily achieved, The decorative sheet 20 is not excessively stretched at the corners of the wood-grooved grooves 15, and the cut end of the decorative sheet 20 is not noticeable from the outside inside the wood-grooved grooves 15, and the appearance around the wood-grooved grooves 15 is maintained beautifully. it can.
[0035]
As described above, according to the method according to the first embodiment, a sufficient clearance between the inner wall surface of the wood grain groove 15 and the wood grain bar 45 is secured by using the wood grain bar 45 whose center axis is shifted outward. Although the method of performing the graining process gradually in two stages was adopted, although illustration is omitted, the inside part (side part facing the decorative sheet 20) of the graining bar 45 is formed in a tapered shape toward the tip side. The same effect can be obtained even if the wood bar 45 is used.
[0036]
Next, FIG. 7 shows a second embodiment of the method of the present invention. Basically, the terminal portion of the decorative sheet 20 is press-fitted to an intermediate position in the first stage, and then the graining bar 45 is raised, Although the basic process of gradually performing the pumping process again is the same, in this second embodiment, the wood grain bar 45 is composed of two divided parts of an outer part 45a and an inner part 45b along the width direction, The members 45a and 45b are configured to be slidable with respect to each other. In addition, as for the outer side part 45a and the inner side part 45b of the graining bar 45, let the side which opposes the decoration sheet 20 be the inner side part 45b, and let the other side be the outer side part 45a.
[0037]
First, after the decorative sheet 20 is pressure-bonded to the surface of the door trim main body 11, the terminal processing step of the peripheral terminal 22 of the decorative sheet 20 is first performed by lowering only the outer portion 45a of the grained bar 45 as shown in FIG. The peripheral edge 22 of the decorative sheet 20 is press-fitted into the middle portion of the wood grain groove 15 by the outer portion 45a of the wood grain bar 45.
[0038]
Then, as shown in FIG.7 (b), the outside part 45a of the graining bar 45 is raised, and the outside part 45a and the inside part 45b are integrated. Thereafter, with the wood bar 45 in which the outer portion 45a and the inner portion 45b are integrated, as shown in FIGS. 7C and 7D, the peripheral terminal 22 of the decorative sheet 20 is gradually pumped downward, The terminal processing process is completed.
[0039]
Even when the second embodiment is adopted, the decoration sheet 20 is sufficiently secured since the clearance between the inner wall surface 15a of the graining groove 15 and the outer part 45a of the graining bar 45 is sufficiently secured when the graining bar 45 is initially press-fitted. Are not stretched, and the decorative sheet 20 does not sag at the corners of the grained grooves 15, and the cut end of the decorated sheet 20 does not stand out at the bottom of the grained grooves 15. Therefore, the appearance appearance in the vicinity of the wood groove 15 can be maintained satisfactorily, and the shape of the decorative sheet 20 is not changed, so that the mating with the door trim body 11 can be easily performed.
[0040]
Next, a third embodiment of the method of the present invention will be described with reference to FIGS. 8 and 9. First, the configuration of the crimping die 30 used in the terminal processing method according to the third embodiment will be described with reference to FIG. In the crimping die 30 used in the third embodiment, a buffering spring 44 is interposed between the lifting table 41 and the crimping core 43 in the same manner as the die used in the above embodiment. However, a multistage stopper mechanism 60 is interposed between the two.
[0041]
That is, a multistage stopper 61 that can be switched in three stages is connected to an advance / retreat cylinder 62 so as to be able to advance / retreat in the lateral direction. The advance / retreat cylinder 62 is connected to the up / down operation cylinder 63 and is connected to the multistage stopper. Corresponding to 61, a spacer block 64 is provided on the lower surface of the lifting table 41.
[0042]
Next, the terminal processing step using the crimping die 30 will be described with reference to FIGS. 9A to 9C. The lifting table 41 is lowered, and the decorative sheet 20 is crimped and fixed to the surface of the door trim main body 11. Thereafter, the elevating table 41 is lowered again. First, as shown in FIG. 9A, the upper stage portion 61 a of the multi-stage stopper 60 and the spacer block 64 come into contact with each other, and the grained bar 45 causes the peripheral edge 22 of the decorative sheet 20 to be Perform initial press-fitting.
[0043]
Thereafter, the advancing / retreating cylinder 62 and the vertical movement cylinder 63 are operated together, and as shown in FIG. 9B, the lifting table 41 is lowered again, so that the multi-stage stopper mechanism 60 has the middle stage portion 61b of the multi-stage stopper 61. And the spacer block 64 come into contact with each other, and the peripheral end 22 of the decorative sheet 20 is press-fitted into the wood trim groove 15 of the door trim main body 11 in the middle period (about two thirds).
[0044]
Then, the advancing / retreating cylinder 62 and the vertical movement cylinder 63 are operated together, and the lifting table 41 is further lowered, so that the lower stage of the multi-stage stopper 61 is provided in the multi-stage stopper mechanism 60 as shown in FIG. The part 61c and the spacer block 64 come into contact with each other, and the peripheral edge 22 of the decorative sheet 20 can be pressed into the wood trim groove 15 of the door trim main body 11 by the wood grain bar 45 until the final stage.
[0045]
Thus, since the crimping die 30 according to the third embodiment employs the multi-stage stopper mechanism 60, the peripheral edge 22 of the decorative sheet 20 can be subjected to graining processing in three stages, as in the above-described embodiment. Compared to the two-stage one, it is possible to perform press-in processing that is finer, and the appearance of the periphery of the wood groove 15 can be further improved, and the elongation of the decorative sheet 20 can be further suppressed.
[0046]
【The invention's effect】
As described above, according to the decorative sheet terminal processing method and the crimping die used in the method according to the present invention, after crimping the decorative sheet to the surface of the trim body, the peripheral edge of the decorative sheet is connected to the trim body. When press-fitting into a grained groove, it is a two-stage or three-stage, etc. press-fit process that is divided into multiple stages, so that the expansion deformation of the decorative sheet is suppressed, and there is no R sag at the corner of the grained groove. Moreover, since the cut end of the decorative sheet at the bottom of the grained groove does not stand out, the appearance appearance in the vicinity of the grained groove can be favorably maintained.
[0047]
Further, the peripheral edge of the decorative sheet is divided into multiple stages such as two stages or three stages, so that the decorative sheet is not stretched and the shape is easily adjusted.
[Brief description of the drawings]
FIG. 1 is a front view showing an automobile door trim manufactured by using the method of the present invention.
2 is a cross-sectional view taken along line II-II in FIG.
FIG. 3 is a schematic view showing the configuration of a crimping die used in the first embodiment of the method of the present invention.
4 is an explanatory view showing a configuration of a grain bar in the crimping die shown in FIG. 3; FIG.
FIG. 5 is an explanatory view showing a decorative sheet pressing step in the first embodiment of the method of the present invention.
FIGS. 6A and 6B show a decorative sheet terminal processing method according to the first embodiment of the present invention, and each of (a) initial press-fitting, (b) bar rising, (c), (d) pumping, respectively. It is explanatory drawing which shows the state of.
FIG. 7 shows a second embodiment of the decorative sheet terminal processing method according to the present invention; (a) at the initial press-fitting, (b) at the time of raising the bar, (c) and (d) at the time of pumping, respectively. It is explanatory drawing which shows the state of.
FIG. 8 is an explanatory view showing another embodiment of a crimping die according to the present invention.
FIGS. 9A and 9B are diagrams showing respective states of (a) an initial press-fitting, (b) an intermediate press-fitting, and (c) a press-fitting completion in the decorative sheet terminal processing method using the crimping die shown in FIG. 8; FIG.
FIG. 10 is a front view showing a conventional automobile door trim.
FIG. 11 is an explanatory view showing a terminal processing step of a decorative sheet in a conventional door trim for automobiles.
FIG. 12 is an explanatory diagram showing a defect in a conventional decorative sheet terminal processing method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Automotive door trim 11 Door trim main body 15 Wood grain groove 15a Inner wall surface 20 Decorative sheet 22 Peripheral terminal 30 Crimping die 40 Crimping upper mold 41 Lifting table 42 Lifting cylinder 43 Crimping core 44 Buffer spring 45 Wood grain bar 45a Outside part 45b Inside Part 50 Crimping lower mold 60 Multi-stage stopper mechanism 61 Multi-stage stopper 61a Upper stage part 61b Middle stage part 61c Lower stage part 62 Advancing and retracting cylinder 63 Vertical movement cylinder 64 Spacer block

Claims (5)

The decorative sheet (20) is fixed to a part of the surface of the trim body (11) formed into a required shape by pressing, and the peripheral end (22) of the decorative sheet (20) is formed on the trim body (11). In the terminal processing method of the decorative sheet (20), which is press-fitted into the wood-grooved groove (15) by the wood-meshing bar (45),
After lowering the graining bar (45) to the middle part of the depth of the graining groove (15), the graining bar (45) is raised, and then the graining bar (45) is again placed in the graining groove (15). The decorative sheet terminal processing method is characterized in that a pumping process is performed in which the peripheral terminal (22) is press-fitted into the wood groove (15) while pushing the peripheral terminal (22) of the decorative sheet (20). The wood grain bar (45) is set by shifting the center axis (P1) of the wood grain bar (45) slightly outward from the groove width center line (P) of the wood grain groove (15), or the wood grain bar (45). 2. The decorative sheet terminal processing method according to claim 1, wherein a taper shape is set with the inner side of the sheet facing the front end side. The decorative sheet (20) is fixed to a part of the surface of the trim body (11) formed into a required shape by pressing, and the peripheral end (22) of the decorative sheet (20) is formed on the trim body (11). In the terminal processing method of the decorative sheet (20), which is press-fitted into the wood-grooved groove (15) by the wood-meshing bar (45),
The wood grain bar (45) is divided into an outer part (45a) and an inner part (45b) along the groove width direction of the wood grain groove (15), and the peripheral edge (22) of the decorative sheet (20) is made into the wood grain groove. When press-fitting to the middle part of the groove depth of (15), only the outer part (45a) of the graining bar (45) is lowered and inserted to the middle part, and then the outer part (45a) is raised, (45a) and the inner part (45b) are integrated, and then the peripheral end (22) of the decorative sheet (20) is press-fitted into the grained groove (15) by the pumping operation of the grained bar (45). Terminal processing method for decorative sheets. The decorative sheet (20) is fixed to a part of the surface of the trim body (11) formed into a required shape by pressing, and the peripheral end (22) of the decorative sheet (20) is formed on the trim body (11). In the terminal processing method of the decorative sheet (20), which is press-fitted into the wood-grooved groove (15) by the wood-meshing bar (45),
The wood grain bar (45) is fixed to the lower surface of the elevating table (41) in the upper crimping die (40), and is attached to the elevating table (41) via a buffering spring (44). 43) is fixed, and a multi-stage stopper mechanism (60) is provided between the elevating table (41) and the crimping core (43), and the multi-stage stopper mechanism (60) operates to perform crimping. The stroke of the child (43) is adjusted in multiple stages, and accordingly the graining bar (45) is relatively press-fitted into the graining groove (15) in multiple stages, and the peripheral edge (22) of the decorative sheet (20) is A terminal processing method for a decorative sheet, characterized by performing press-fitting processing in multiple stages. The decorative sheet (20) is pressure-bonded and fixed to a predetermined surface of the trim main body (11), and the peripheral end (22) of the decorative sheet (20) is press-fitted into the grain groove (15) of the trim main body (10). It is a metal mold (30), which is composed of a crimping lower mold (50) for setting the trim body (11) and a crimping upper mold (40) located above the trimming main body (11). The crimping core (43) corresponding to the occupying surface of the decorative sheet (20) is attached to the lifting table (41) via the buffer spring (44), and the lifting table (41) and the crimping core (43 ), A multistage stopper mechanism (60) is interposed, and a wood grain bar (45) is provided along the outer periphery of the crimping core (43). Type.

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