Decorative member

Abstract

To provide a decorative member improved in appearance quality.SOLUTION: The decorative member 1 includes a base material 2 having a first surface portion 7 and a second surface portion 8 connected to the first surface portion 7 via a corner portion 9 in a direction intersecting the first surface portion 7, and a skin member 3 having a plurality of base fabrics 11 and a sewn portion 13 that sews at least two of the base fabrics 11, the skin member 3 being attached to the base material 2 over the first surface portion 7 and the second surface portion 8. The sewing part 13 includes a curved part 20 having a curved sewing line in at least a part thereof, and is arranged over the first surface part 7 and the second surface part 8 beyond the corner part 9 so that at least a part of the curved part 20 is positioned at the corner part 9. A zigzag pinking part 22 is notched and formed at the end edge of the terminal part 12 of the base cloth 11 formed by the curved part 20. A push-up part 25 for pushing up a part of the pinking part 22 in the direction opposite to the sticking direction of the skin member 3 to the base material 2 is formed on the base material 2.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a decorative member in which a skin member is attached to a base material. [Background technology]

[0002] Conventionally, some automotive interior parts have a surface material such as leather attached to a synthetic resin base material. The surface material may have stitches as decorative stitching to enhance the design. When some of the stitches are arranged in a curved shape, such as an arc, excess seam allowance is generated in the base fabric constituting the surface material, located on the inner periphery of the stitch, i.e., the side with the greater curvature, resulting in a wavy appearance. In this case, even if the surface material is attached to the base material, the wavy seam allowance cannot adhere to the base material, resulting in a wavy appearance. This results in an unattractive appearance.

[0003] In such cases, a known configuration is to absorb the excess seam allowance of the base fabric by cutting out the edge of the inner peripheral fabric in a zigzag shape to form a notch (pinking portion) (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-69843 Summary of the Invention [Problem to be solved by the invention]

[0005] However, for example, when the design surface of the base material has surfaces that intersect with each other and the skin material is attached to the entire base material so that the stitching crosses the corners formed by those surfaces, if the skin material is pulled and positioned in a state where the spacing between the notches at the corners is widened, the skin material may become dented and the appearance may be impaired.

[0006] The present invention has been made in view of the above points, and an object of the present invention is to provide a decorative member with improved appearance quality. [Means for solving the problem]

[0007] A decorative member according to one aspect of the present invention comprises a substrate having a first surface portion and a second surface portion connected via a corner portion in a direction intersecting the first surface portion, a plurality of base cloths, and a skin member having a sewing portion for sewing at least two of the base cloths together, the skin member being attached to the substrate across the first surface portion and the second surface portion, wherein the sewing portion has at least a curved portion of a sewing line that is curved, and the sewing portion is positioned across the first surface portion and the second surface portion beyond the corner portion so that at least a portion of the curved portion is located at the corner portion, a zigzag pinking portion is cut out at the edge of the terminal portion of the substrate formed by the curved portion, and a push-up portion is formed on the substrate that pushes up a portion of the pinking portion in a direction opposite to the direction in which the skin member is attached to the substrate. [Effects of the Invention]

[0008] According to the present invention, the appearance quality can be improved. [Brief explanation of the drawings]

[0009] [Figure 1] 3A and 3B show a decorative member according to a first embodiment of the present invention, in which (a) is a cross-sectional view taken along line II in FIG. 3B, and (b) is a cross-sectional view taken along line II-II in (a). [Figure 2] 1A is an exploded perspective view of a part of a skin member of the decorative member, and FIG. 1B is a perspective view of a part of the skin member. [Figure 3] FIG. 2(a) is a perspective view showing a part of the base material of the decorative member, and FIG. 2(b) is a perspective view showing a part of the decorative member. [Figure 4] FIG. 6 is a cross-sectional view showing a part of a decorative member according to a second embodiment of the present invention. [Figure 5] FIG. 10 is a cross-sectional view showing a part of a skin member of a decorative member according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0010] A first embodiment of the present invention will be described below with reference to the drawings.

[0011] In Fig. 3(b), 1 denotes a decorative part. In this embodiment, the decorative part 1 is an interior material for a vehicle used in the passenger compartment of a vehicle. In the illustrated example, the decorative part 1 is an armrest of a vehicle, but is not limited to this and may be applied to any interior material for a vehicle.

[0012] As shown in FIG. 1(a), the decorative part 1 is configured by attaching a skin member 3 to a base material 2.

[0013] The substrate 2 shown in FIGS. 1(a), 1(b), and 3(a) is made of a material such as synthetic resin. The substrate 2 has a covering surface portion 5, at least a portion of which is covered by a skin member 3. The covering surface portion 5 has at least a first surface portion 7 and a second surface portion 8. The first surface portion 7 and the second surface portion 8 are formed to extend in directions intersecting each other and are connected to each other via corners 9. In this embodiment, the first surface portion 7 is, for example, a main surface portion that forms the main portion of the decorative component 1 (shown in FIG. 1(a)), and the second surface portion 8 is an end surface portion that forms the terminal portion of the decorative component 1 (shown in FIG. 1(a)). Note that the first surface portion 7 and the second surface portion 8 are not limited to being flat, and may have at least a portion that is bent or curved in a direction intersecting the corners 9. Furthermore, the corners 9 are not limited to being sharply bent, but may be gently curved and rounded.

[0014] The skin member 3 shown in Fig. 1(a), Fig. 2(a), Fig. 2(b), and Fig. 3(b) includes a plurality of base fabrics 11. For example, leather such as natural leather or synthetic leather, or cloth, is used as the base fabrics 11. The end portions 12 of these base fabrics 11 are joined together by sewing at seams 13. In this embodiment, the base fabrics 11 are described as being a pair, with one base fabric 11a for covering a main portion of the covering surface portion 5 and another base fabric 11b for covering the remaining portion of the covering surface portion 5, but the number of base fabrics 11 is not limited.

[0015] The sewn portion 13 is formed along the terminal portion 12 of the base fabric 11. For example, the sewn portion 13 forms a sewing line at a fixed or approximately fixed distance from the terminal portion 12 of the base fabric 11. In this embodiment, the sewn portion 13 has a first sewn portion 15 and a second sewn portion 16. The first sewn portion 15 is a primary sewn portion that joins the terminal portions 12 of the base fabric 11 together. The first sewn portion 15 is set at a position away from the edge of the terminal portion 12, and the portion of the terminal portion 12 closer to the edge than the first sewn portion 15 is a seam allowance.

[0016] The second sewn portion 16 is a secondary sewn portion that joins the end portions 12a, 12b, which are seam allowances folded back and overlapped on the main surface of the base material 2 side (covering surface portion 5 side) of the base fabric 11a, i.e., the back side, together with the base fabric 11a, to form a stitch-like design on the front surface, i.e., the design surface, of the base fabric 11a. The second sewn portion 16 is spaced apart from the first sewn portion 15 by a fixed or approximately fixed distance, closer to the edge of the end portion 12. In other words, the first sewn portion 15 and the second sewn portion 16 are arranged "parallel," so to speak. In this embodiment, the second sewn portion 16 is set in one location, creating a so-called single-stitch design.

[0017] Furthermore, at least a portion of the sewn portion 13 has a curved portion 20 where the sewing line is curved. The curved portion 20 is formed, for example, in an arc shape. However, the curved portion 20 is not limited to this and may have any shape, such as an elliptical curve, a quadratic curve, or a sinusoidal wave. In this embodiment, the curved portion 20 is located near the side edge of the base fabric 11, i.e., near the side that intersects with the terminal portion 12. In the curved portion 20, the first sewn portion 15 and the second sewn portion 16 each form a curved sewing line.

[0018] In this embodiment, for clarity of explanation, only the portion where one base fabric 11a is on the outer circumferential side, which is the side with the smaller curvature of the curved portion 20 (the side with the larger radius of curvature), and the other base fabric 11b is on the inner circumferential side, which is the side with the larger curvature of the curved portion 20 (the side with the smaller radius of curvature) will be described. However, for example, if the curved portion 20 is formed in a wavy shape, the curvature of the one base fabric 11a and the other base fabric 11b will change depending on the bending direction of the curved portion 20, and it is not intended to limit the configuration to one where one of the one base fabric 11a and the other base fabric 11b is fixed to the side with the larger curvature and the other is fixed to the side with the smaller curvature.

[0019] In this way, when the sewn portion 13 has a curved portion 20, if excess material is generated at the edge of the terminal portion 12 of the base fabric 11 that is curved in accordance with the bending of this curved portion 20, the cover member 3 will become wavy, impairing the design. Therefore, in this embodiment, as shown in Figures 2(a) and 2(b), a zigzag pinking portion (notch) 22 is formed at the edge of the terminal portion 12 of the base fabric 11 located at the curved portion 20.

[0020] The pinking portion 22 is formed by cutting out a zigzag edge of the terminal portion 12. In the illustrated example, at least one zigzag folded portion, i.e., a tip portion that is a convex vertex, and another zigzag folded portion, i.e., a tip portion that is a concave vertex, are each formed in a curved shape, and have no sharp edges or corners. Also, in the illustrated example, the pinking portion 22 is formed in a curved shape as a whole, and has a wavy shape with alternating arcs.

[0021] Preferably, the pinking portion 22 is formed on the edge of the terminal portion 12 on the side with the greater curvature of the curved portion 20, i.e., on the edge of the terminal portion 12b of the other base fabric 11b located on the inner side of the curved portion 20, but is not limited to this, and it may also be formed on the edge of the terminal portion 12a of one base fabric 11a located on the side with the smaller curvature, i.e., on the outer side of the curved portion 20, or on the edges of both terminal portions 12.

[0022] The cover member 3 is attached to the base material 2 on the back side of the base fabric 11 across the first surface portion 7 and the second surface portion 8 of the base material 2. In this embodiment, the back sides of the base fabrics 11a and 11b are attached to the base material 2 across the first surface portion 7 and the second surface portion 8 of the base material 2. However, when the cover member 3 having the pinking portion 22 formed on the end portion 12 of the base fabric 11 as described above is applied to a base material 2 having a corner 9 (shown in FIGS. 1(b) and 3(a)), if the sewing line of the sewn portion 13 is positioned beyond the corner 9 across the first surface portion 7 and the second surface portion 8 so that the curved portion 20, i.e., the pinking portion 22, is located at the corner 9, the edge of the end portion 12 of the base fabric 11 will open at the pinking portion 22 when the base fabric 11 is pulled, and the spacing of the pinking portion 22 will increase. In order to prevent a dent from occurring on the design side of the skin member 3 due to the opening of the pinking portion 22, in this embodiment, as shown in Figures 1(a) and 1(b), a push-up portion 25 is formed to push up the pinking portion 22 in a direction (upward in Figure 1(a)) opposite to the direction in which the skin member 3 is attached to the base material 2 (downward in Figure 1(a)).

[0023] The push-up portion 25 is a tension applying portion that applies tension to the pinking portion 22 located at the corner 9. The push-up portion 25 may have any shape as long as it can apply tension to the pinking portion 22 located at the corner 9, but in this embodiment, it is formed, for example, as a convex portion that protrudes from the covering surface portion 5. By arranging the tip of the pinking portion 22 to overlap the push-up portion 25 by a predetermined width W, for example 1 mm, the terminal portion 12 of the base fabric 11 that overlaps the pinking portion 22 is pushed up against the substrate 2, suppressing a recess on the design side. The push-up portion 25 is located near the corner 9, and in this embodiment, it is formed in a portion that includes the corner 9, spanning the first surface portion 7 and the second surface portion 8.

[0024] Preferably, the push-up portion 25 is disposed in a stepped portion 27. As shown in FIGS. 1(a) and 3(a), this stepped portion 27 is a portion where a joint formed by sewing together the end portions 12 of multiple pieces of base fabric 11 in an overlapping state using a stitching portion 13 is located. That is, the joint has a thickness equivalent to that of multiple pieces of base fabric 11, making it thicker than other portions. In particular, in this embodiment, the end portions 12a and 12b are folded back and overlapped on the back side of the base fabric 11a, resulting in the joint having a thickness equivalent to that of three pieces of base fabric. Therefore, by forming a stepped portion 27 in the base material 2 where the joint fits, the thickness of the end portions 12 of the overlapping pieces of base fabric 11 is absorbed in the covering surface portion 5, thereby preventing unevenness on the design surface side of the skin member 3 due to the lifting of the joint. The stepped portion 27 is shaped so that the side covered by the base fabric 11b is lower than the side covered by the base fabric 11a. The step portion 27 extends in a direction intersecting or perpendicular to the corner portion 9, and spans from the first surface portion 7 to the second surface portion 8. As shown in FIGS. 1(a) and 1(b), the push-up portion 25 is formed so as to be continuous with a wall portion 28 that rises in the step portion 27. The step portion 27, including the wall portion 28, also serves to position the skin member 3 relative to the base material 2.

[0025] In the illustrated example, the length L1 of the push-up portion 25 on the first surface 7 side is set to, for example, 3.5 mm, and the thickness T1 is set to, for example, 0.8 mm, and the length L2 on the second surface 8 side is set to, for example, 3 mm, and the thickness T2 is set to, for example, 0.3 mm. In other words, the length and thickness in the direction intersecting with the corner 9 are set to be greater on the first surface 7 side than on the second surface 8 side.

[0026] When forming the skin member 3, first, the end portions 12a, 12b of the base fabrics 11a, 11b are sewn together at the first sewn portion 15 with the main surfaces of the design sides overlapping each other.

[0027] Next, the terminal portions 12a, 12b that have become sewing allowances due to sewing of the first sewing portion 15 are overlapped and placed on the back side of one base fabric 11a, and then these terminal portions 12a, 12b are sewn to the base fabric 11a by the second sewing portion 16.

[0028] The pinking portion 22 is preferably formed on the edge of the other base fabric 11b before sewing with the first sewing portion 15, but it may also be formed either after sewing with the first sewing portion 15 or after sewing with the second sewing portion 16.

[0029] In the skin member 3 formed in this manner, the excess portion of the edge of the terminal portion 12b of the other base fabric 11b on the inner side of the stitching portion 13 is removed by the pinking portion 22, so that even if a curved portion 20 is formed in the stitching portion 13, the terminal portion 12b of the other base fabric 11b does not ripple, and the other base fabric 11b can be attached in close contact to the covering surface portion 5 of the substrate 2.

[0030] The joint between the first base fabric 11a and the second base fabric 11b is positioned so as to fit into the step portion 27 of the base material 2, and the tip of the pinking portion 22 is overlapped by a predetermined width with the push-up portion 25 located at the step portion 27, with the first base fabric 11a positioned above the step portion 27 and the second base fabric 11b positioned below the step portion 27, and the skin member 3 is attached to the base material 2 while being folded from the corner portion 9 so as to cover the first surface portion 7 and the second surface portion 8 of the covering surface portion 5 of the base material 2.

[0031] In this case, even if the pinking portion 22 corresponding to the curved portion 20 of the sewing portion 13 is located near the corner 9, the push-up portion 25 formed on the base material 2 pushes up the pinking portion 22 in a direction opposite to the direction in which the skin member 3 is attached to the base material 2, so that the gap between the pinking portions 22 does not widen and it is possible to prevent dents from occurring in the design surface of the skin member 3 near the corner 9, thereby providing a decorative member 1 with improved appearance quality.

[0032] Furthermore, by arranging the joints where the terminal portions 12 of the multiple base fabrics 11 are sewn together while overlapping each other at the step portions 27 formed in the base material 2, the thickness of the terminal portions 12 of the overlapping base fabrics 11 can be absorbed, and by arranging the push-up portions 25 at the step portions 27, only the corner portions 9 do not rise on the design surface of the skin member 3, thereby improving the appearance quality and feel.

[0033] In particular, the terminal portion 12b of the other base fabric 11b located on the inner side of the curved portion 20 has a large curvature, so when the pinking portion 22 corresponding to the curved portion 20 of the sewing portion 13 is located near the corner 9, the spacing between the pinking portions 22 is more likely to widen. Therefore, by pushing up the pinking portion 22 with the pushing-up portion 25, it is possible to more reliably prevent dents from occurring in the design surface of the skin member 3 at positions near the corner 9.

[0034] Regarding the shape of the push-up portion 25, even if it is formed into an inclined surface that gradually becomes higher toward the wall portion 28, as in the second embodiment shown in FIG. 4, the push-up portion 25 formed on the base material 2 pushes up the pinking portion 22 in a direction opposite to the direction in which the skin member 3 is attached to the base material 2, so that the gap between the pinking portions 22 does not widen, and it is possible to suppress the occurrence of dents in positions near the corners 9 on the design surface of the skin member 3, and it is possible to provide a decorative member 1 with improved appearance quality, thereby achieving the same effects as those of the first embodiment.

[0035] Although the sewn portion 13 is shown as a single stitch, it may be a double stitch. In this case, a plurality of second sewn portions 16 may be provided. For example, as in the third embodiment shown in FIG. 5, a double stitch may be formed by second sewn portions 16, 16 that sew the folded end portions 12a, 12b together. In this third embodiment, the end portions 12a, 12b of the base fabrics 11a, 11b are first sewn together with the first sewn portion 15, with the main surfaces of the design sides overlapping each other. Then, the end portions 12a, 12b, which are the seam allowances, are opened relative to the first sewn portion 15 and overlapped on the back side of the base fabrics 11a, 11b. Then, these end portions 12a, 12b are sewn to the base fabrics 11a, 11b with the second sewn portion 16. This allows the sewn portion 13 to easily have a double-stitched design. In this case, the step portion 27 may be formed so that both terminal portions 12a, 12b fit together, and the pinking portion 22 formed on the edge of the terminal portion 12 may also be pushed up near the corner 9 by the pushing-up portion 25 arranged on the step portion 27, thereby improving the appearance quality of the decorative member 1, as in each embodiment.

[0036] Furthermore, in each embodiment, the decorative member 1 is not limited to being used as an interior material for a vehicle, and may be used in any location. [Industrial Applicability]

[0037] The present invention can be suitably used as an interior material for a vehicle, for example. [Explanation of symbols]

[0038] 1 Decorative materials 2 Base material 3. Covering material 7 First side 8 Second surface section 9 Corner 11 Base fabric 12 Terminal 13 Sewing section 20 Curved section 22 Pinking Department 25 Push-up section 27 Step

Claims

1. a substrate having a first surface portion and a second surface portion connected to the first surface portion via a corner portion in a direction intersecting the first surface portion; a surface member having a plurality of base fabrics and a sewn portion for sewing at least two of the base fabrics together, the surface member being attached to the base material across the first surface portion and the second surface portion; The stitching portion is disposed across the first surface portion and the second surface portion beyond the corner portion so that the stitching line has at least a curved portion that is curved, and at least a portion of the curved portion is located at the corner portion, A zigzag pinking portion is formed by cutting out the edge of the terminal portion of the base fabric formed by the curved portion, The base material is formed with a pushing-up portion that pushes up a part of the pinking portion in a direction opposite to the direction in which the skin member is attached to the base material. A decorative member characterized by:

2. The sewn portion is formed by sewing together the end portions of a plurality of base fabrics in an overlapping state, The base material has a step portion in a direction intersecting the corner portion for absorbing the thickness of the end portions of the overlapping base fabrics, The push-up portion is disposed on the step portion.

2. The decorative member according to claim 1.

3. The pinking portion is formed at the end portion of the base fabric located on the inner periphery side of the curved portion.

3. The decorative member according to claim 1 or 2.

Images