Vehicle interior parts

Abstract

To provide a vehicular interior component which can improve and facilitate workability in covering a base material with a cover material, so that work processes or man hours are reduced.SOLUTION: A vehicular interior component 1 having a design surface 2, comprises a base material 10, and a cover material 20 that covers the base material 10. The cover material 20 has linear locking members 5 at end portions 21 and 22 of the cover material 20. The linear locking members 5 are mounted on positions which are invisible from a design surface side in the base material 10. The linear locking members 5 at the end portions 21 and 22 of the cover material 20 enable the cover material 20 to be pulled by wire, which can suppress the sagging and wrinkling when covering the base material 10. Further, the linear locking members 5 mounted on positions which are invisible from the design surface side enable the cover material 20 to be fixed without using an adhesive.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a vehicle interior part, and more particularly to a vehicle interior part covered with a skin. [Background technology]

[0002] Conventionally, vehicle interior parts such as door armrests are composed of a base material and a skin covering the surface of the base material. The skin is made of, for example, a sheet-like soft material. The skin is attached by wrapping the skin around the outer periphery of the base material and applying an adhesive. Patent Document 1 discloses a structure in which a plurality of locking pieces are provided inside a core material, the peripheral edge of the skin material is folded back at the edge of the core material, and engagement holes formed at the edge of the skin material are engaged with the locking pieces to hold the skin material to the core material.

[0003] However, when a sheet-like soft material that is not injection molded is used as a skin to cover the base material of an interior component, there is a risk that loose wrinkles may occur or the end of the skin material may come off the locking piece. Therefore, when fixing a sheet-like soft material skin material to a base material, adhesives are still used or multiple positions are fixed using a tacker or the like, and the skin end is wrapped and fixed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-312346 Summary of the Invention [Problem to be solved by the invention]

[0005] When using adhesive to wrap the skin, it requires a lot of labor and is difficult for the worker. Furthermore, since the adhesive application process is also required, it is difficult to reduce the number of steps. Therefore, there was a need for a structure that would improve the work process or labor by eliminating the need for adhesive or by eliminating the need to wrap the skin end with a stapler, thereby reducing the difficulty of the manual work and making it easier to cover the skin.

[0006] The present invention has been made in consideration of the above-mentioned problems, and provides a vehicle interior part that improves and facilitates the workability when covering a substrate with a skin, thereby reducing the work steps or man-hours. [Means for solving the problem]

[0007] The above-mentioned problem is solved by the vehicle interior part of the present invention, which is a vehicle interior part having a design surface, and includes a base material and a skin material covering the base material, the skin material having a linear fastening member at an end of the skin material, the entire linear fastening member being disposed on the back side of the base material, and the linear fastening member being attached to the base material at a position that cannot be seen from the design surface side. The base material has an engaging portion on the back side of the terminal portion that engages with the linear engaging member, and the engaging portion includes a locking claw that locks the linear engaging member. The linear engaging member is inserted into a gap between a rib provided on the lower terminal portion of the base material and a lower return portion provided on the locking claw, and is attached to the base material by being disposed on the back side of the base material and engaging with the locking claw. This is solved by:

[0008] By having a linear fastening member at the edge of the skin material, the skin material is pulled by the line, which helps prevent loose wrinkles when covering the base material. Furthermore, by attaching the linear fastening member to a position that is not visible from the design surface, such as the backside of the base material, the skin material can be fixed without the use of adhesive. Because no adhesive is used, the workability of covering the base material with the skin material is improved and simplified, making it possible to provide interior vehicle parts with fewer work processes or fewer man-hours. Because loose wrinkles are suppressed, variation in the finish of the product depending on the worker is reduced, improving and stabilizing the appearance quality. The undulation of decorative lines such as stitching on the skin material is also suppressed.

[0009] Also, The rib and the lower turned portion are disposed on the same plane. Good 。

[0010] In the above-mentioned vehicle interior part, the linear fastening member comprises a first linear fastening member attached to a first terminal portion of the base material, and a second linear fastening member attached to a second terminal portion of the base material located on the opposite side of the first terminal portion, and the upper end of the upholstery material has a suspender cord formed in a rod shape as the first linear fastening member, connected via a nonwoven fabric, and the lower end of the upholstery material has a trim cord formed in a long, thin plate shape as the second linear fastening member, connected by sewing. A fabric member that connects the end of the skin material and the linear fastening member is disposed on the back side of the base material. good. By attaching the linear fastening members positioned on opposite sides, the covering material is pulled in opposite directions by the lines, which further prevents the covering material from loosening and wrinkling.

[0011] In the above configuration, the first linear locking members and the second linear locking members may be arranged so as to become more spaced apart from the ends of the base material toward the center. The covering skin material can be held in place in a balanced manner according to the shape of the vehicle interior part, and loose wrinkles can be suppressed.

[0012] In the above-mentioned interior part for a vehicle, the first linear fastening member is located above the base material. The aforementioned The second linear locking member is attached to the first terminal portion and is located below the base material. The aforementioned The second linear locking member is attached to the second terminal portion and may be longer than the first linear locking member. By making the second linear fastening members located on the lower side longer than the first linear fastening members, the covered upholstery material can be fastened in a balanced manner, and loosening and wrinkling of the upholstery material can be suppressed.

[0013] In the above-mentioned interior part for a vehicle, the first linear fastening member is located above the base material. The aforementioned The cover material may be attached to a first terminal portion, and the second linear locking member may be attached to a second terminal portion below the base material, and the cover material may have a decorative line between the first linear locking member and the second linear locking member. By attaching the first linear fastening member and the second linear fastening member above and below the decorative line, undulation and distortion of the decorative line are suppressed, improving the appearance and merchantability.

[0014] In addition, in the above vehicle interior part, before The engaging portion may be provided so as to protrude toward the rear side of the base material. By providing an engaging portion that engages with the linear engaging member, loosening and wrinkles in the skin material that covers the base material can be suppressed.

[0015] In addition, in the above vehicle interior part, a plurality of the linear locking members are attached to the base material by the engaging portions in a line in a predetermined direction, The base material has dot-like engaging portions for engaging the skin material in addition to the engaging portions. The locking portion is disposed between the plurality of linear locking members. It would be good to do so. By providing the point-like locking portions in addition to the engaging portions, loosening and wrinkles in the skin material covering the base material can be further suppressed.

[0016] In the above-mentioned vehicle interior part, a through hole is formed in the vicinity of the terminal portion of the skin material, and the engaging portion includes a hook portion that is hooked onto the linear locking member, and an end of the hook portion is upper side The linear locking member has a hook portion inserted through the through hole. of The aforementioned upper side The sheet may be attached to the base material by being hung on the folded portion. By attaching the linear fastening member to the base material by the hook portion inserted into the through hole, loosening and wrinkles of the skin material covering the base material can be further suppressed. [Effects of the Invention]

[0018] According to the present invention, since the skin material has a linear fastening member at its end, the skin material is pulled by the line, thereby suppressing loose wrinkles when covering a substrate. Furthermore, by using the linear fastening member to attach the skin end to a position that is not visible from the design surface, such as the back side of the substrate, the skin material can be fixed without using adhesive. Because no adhesive is used, the workability when covering the substrate with the skin material is improved and simplified, making it possible to provide interior vehicle parts with fewer work steps or fewer man-hours. Because loose wrinkles are suppressed, variation in the product finish depending on the worker is reduced, improving and stabilizing the appearance quality. The undulation of decorative lines such as stitching on the skin material is also suppressed. Furthermore, the linear fastening member has a simple structure, which allows it to be easily engaged with the base material, and the simple structure also prevents the skin material from loosening and wrinkling. Furthermore, by attaching the linear fastening members positioned on opposite sides, the covering material is pulled in opposite directions by the lines, which further prevents the covering material from loosening and wrinkling. Furthermore, by attaching the linear fastening members positioned on opposite sides, the covering material is pulled in opposite directions by the lines, which further prevents the covering material from loosening and wrinkling. Furthermore, by making the second linear fastening members located on the lower side longer than the first linear fastening members, loosening and wrinkles in the covering material can be suppressed. Furthermore, by attaching the first linear fastening member and the second linear fastening member above and below the decorative line, undulation and distortion of the decorative line are suppressed, improving the appearance and merchantability. Furthermore, the engagement portion can prevent the skin material covering the base material from loosening and wrinkling. Furthermore, by providing the dot-like engaging portions, loosening and wrinkles of the skin material covering the base material can be further suppressed. Furthermore, by attaching the linear fastening members to the base material by means of the hooks inserted into the through holes, loosening and wrinkling of the skin material covering the base material can be further suppressed. Furthermore, by engaging the plate-shaped linear locking member with the locking claw, locking can be easily achieved with a simple structure. [Brief explanation of the drawings]

[0019] [Figure 1]1 is a side view showing a vehicle door having a vehicle interior part according to an embodiment of the present invention. [Figure 2] FIG. 2 is a side view showing an armrest provided on a vehicle door. [Figure 3] FIG. 3 is a cross-sectional view of the armrest taken along line III-III in FIG. 2. [Figure 4] FIG. 4 is an enlarged view showing a portion A of FIG. 3. [Figure 5] 4 is an enlarged view showing a portion B of FIG. 3. FIG. [Figure 6] FIG. 10 is a cross-sectional view showing another example of a linear locking member. [Figure 7A] FIG. 10 is a cross-sectional view showing another example of a linear locking member. [Figure 7B] FIG. 10 is a front view showing another example of the linear locking member. [Figure 8] 10A to 10C are explanatory diagrams showing a procedure for attaching the linear locking member. [Figure 9] FIG. 10 is a cross-sectional view showing another example of a linear locking member. [Figure 10] FIG. 10 is a cross-sectional view showing another example of a linear locking member. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, the configuration of a vehicle interior part according to one embodiment of the present invention will be described with reference to the drawings. However, the embodiment described below is intended to facilitate understanding of the present invention and is not intended to limit the present invention. In other words, the present invention may be modified or improved without departing from the spirit thereof, and of course, the present invention also includes equivalents thereof. In the following description, the details regarding the material, shape, and size of the vehicle interior parts are merely examples and do not limit the present invention.

[0021] In the following, a door lining 50 provided on a vehicle door D, particularly an armrest 1, will be taken as an example of a vehicle interior part, and an example of its configuration will be described. However, the present invention is not limited to the door lining 50 mounted on ground vehicles having wheels such as automobiles and trains, and can also be applied to interior parts mounted on aircraft, ships, and other vehicles that move other than on land, for example.

[0022] In the following description, the "front-rear direction" refers to the front-rear direction of the vehicle door D, which is the direction that coincides with the traveling direction of the vehicle when it is traveling. That is, as shown in FIG. 1, the traveling direction of the vehicle is the front side, and the opposite side is the rear side. The "up-down direction" refers to the up-down direction of the vehicle door D, which is the direction that coincides with the vertical direction when the vehicle is traveling on a horizontal plane. Furthermore, the term "outside" simply refers to the direction from the center of the vehicle compartment where the vehicle door D is installed to the outside, and the term "inside" refers to the direction from the outside of the vehicle to the center of the vehicle compartment. The "door width direction" is the same as the vehicle width direction, and refers to the direction from the inside to the outside of the vehicle door D.

[0023] The shapes, positions, and postures of the vehicle door D and the door lining 50 will be described below assuming that the vehicle door is closed, unless otherwise specified.

[0024] <Vehicle doors> The basic configuration of a vehicle door D equipped with a door lining 50 according to this embodiment will be described with reference to Fig. 1. Fig. 1 is a side view showing the door lining 50 provided on the vehicle door D. The vehicle door D includes a door panel P, a window W formed in the upper part of the door panel P, and a door lining 50 provided on the door panel P below the window W. The door lining 50 is composed of an upper member 51, a center member 52, a lower member 53, and an armrest 1 that protrudes toward the interior of the vehicle cabin between the center member 52 and the lower member 53. A door handle 54 is provided in front of the center member 52, and a door pocket 56 is provided in front of the lower member 53.

[0025] <Armrest> Next, the armrest 1 of the door lining 50 will be described. The armrest 1 is an example of a vehicle interior part. Fig. 2 is a side view of the armrest 1 as seen from the inside of the vehicle, and Fig. 3 is a cross-sectional view of the armrest 1. As shown in Figs. 2 and 3, the armrest 1 is a member that protrudes toward the inside of the vehicle and is a portion on which an occupant seated in the vehicle seat can place their hands or arms. The armrest 1 has a shape that extends in the fore-and-aft direction of the vehicle door D, and an opening / closing switch 55 for operating the opening and closing of the power window is provided on the upper surface of the armrest 1 (see Fig. 1).

[0026] The armrest 1 is attached to a center member 52 and a lower member 53, and has a design surface 2 that is visible to passengers. Specifically, the surface that protrudes toward the interior of the vehicle is the design surface 2. The back surface of the armrest 1, which cannot be seen from the design surface side, is provided with a plurality of bosses 3 that enable it to be connected to the center member 52 and the lower member 53.

[0027] The armrest 1 has a base material 10 to maintain its protruding shape. The armrest 1 also has a skin material 20 that covers the surface 10a of the base material 10 on the side of the design surface 2, as shown in FIG. 3. The base material 10 is made of resin, and the skin material 20 that covers the base material 10 is made of, for example, fabric, synthetic leather, or genuine leather. The skin material may also be made of nonwoven fabric, film, or the like. A pad Pa may also be disposed between the base material 10 and the skin material 20.

[0028] <Design line> The armrest 1 has a top surface 1a and a side surface 1b on which an occupant can place their hands or arms, and at the boundary between the top surface 1a and the side surface 1b, a stitch 15 is formed as a decorative line by sewing on the upholstery material 20. At the position where the top surface 1a and the side surface 1b of the armrest 1 intersect, an intersection 1e extending in the front-to-rear direction is formed, and as shown in Figure 2, the stitch 15 is arranged linearly along the intersection 1e from the front end 1c to the rear end 1d of the armrest 1.

[0029] Furthermore, the intersection 1e is formed as a flat slope as shown in Figure 3. However, this is just one example, and depending on how the stitch 15 is made, the sewn portion may protrude from the back side of the cover material 20. In that case, a recess may be formed extending along the intersection 1e, and the protruding portion of the stitch 15 may be inserted into the recess. Furthermore, since the stitch 15 is merely for design purposes, it does not have to be provided on the cover material 20. In this embodiment, the decorative line is provided with stitches 15 sewn as an accent line, but this is just one example, and a pattern may be printed on the surface of the skin material 20 or a rugged pattern may be created by transfer.

[0030] <Linear locking member> As shown in FIGS. 3 and 4, the upper end 21 of the skin material 20 is provided with a linear locking member 5 formed in a linear shape in accordance with the shape of the upper terminal portions 11a, 11b of the base material 10. In this embodiment, suspender cords 30 (first linear fastening members) formed in a rod shape as linear fastening members 5 are provided on the upper end portion 21 of the covering material 20 via a nonwoven fabric 33. Two suspender cords 30 are arranged along the upper end portion 21 of the covering material 20.

[0031] The suspender cord 30 shown in Figures 3 and 4 has a cross-sectional shape that is a combination of a rectangle and a semicircle, but the cross-sectional shape of the suspender cord 30 is not limited to this shape and may be a rectangle or a circle.

[0032] 3 and 5, a linear locking member 5 formed in a linear shape according to the shape of the lower terminal portions 12a, 12b of the base material 10 is also provided at the lower end portion 22 of the skin material 20. In this embodiment, a trim cord 40 (second linear fastening member) formed in the shape of an elongated plate as a linear fastening member 5 is provided at the lower end 22 of the cover material 20 by sewing. The trim cord 40 is formed to have the same cross-sectional shape at every portion. The trim cord 40 is arranged to extend along the lower end 22 of the cover material 20. As shown in Figures 2 and 3, the trim cord 40 is provided at a position opposite the suspender cords 30, in other words, at the end (lower end 22) opposite the suspender cords 30. The linear fastening members 5 attached to the lower terminal portions 12a and 12b may be suspender cords 30.

[0033] The suspender cords 30 and trim cords 40, which are linear fastening members 5 provided on the skin material 20, are attached in positions that cannot be seen from the design surface side of the base material 10. In Fig. 2, the suspender cords 30 and trim cords 40 are shown with solid lines for the sake of convenience in order to indicate their positions, but as shown in Fig. 3, the suspender cords 30 and trim cords 40 are positioned on the back surface 10b side of the base material 10, in positions that cannot be seen from the design surface side.

[0034] <Engagement part> The following describes the engagement portions 6 that are provided on the base material 10 and engage with the linear engagement members 5 in order to attach the linear engagement members 5 to the base material 10. In this embodiment, there are two types of engagement portions 6: the engagement portions 6 provided on the upper terminal portions 11a and 11b are referred to as engagement portions 6A, and the engagement portions 6 provided on the lower terminal portions 12a and 12b are referred to as engagement portions 6B.

[0035] As shown in Figure 2, multiple engagement portions 6A that engage with the suspender cord 30, which is the linear locking member 5, are arranged in a row at a position that cannot be seen from the design surface of the base material 10, for example, at the upper terminal portions 11a and 11b on the back side of the base material 10.

[0036] As shown in FIGS. 3 and 4, the engaging portion 6A that engages with the suspender cord 30 is provided as a hook portion 31 that protrudes toward the outside of the door and has a return portion 31a at its tip. A through-hole 34 is formed in the base portion (nonwoven fabric 33) of the suspender cord 30, through which the hook portion 31 passes. By passing the hook portion 31 through the through-hole 34 and hooking the return portion 31a of the hook portion 31 onto the suspender cord 30, the upper end portion 21 of the covering material 20 is attached to a position (terminal portion on the back side) that cannot be seen from the design surface side of the base material 10. The intervals at which the hook portions 31 and the through holes 34 are arranged can be adjusted appropriately and arbitrarily.

[0037] At the lower terminal portions 12a and 12b of the base material 10, a plurality of engaging portions 6B that engage with the trim cord 40 that is the linear engaging member 5 are arranged side by side. As shown in FIGS. 3 and 5, the engaging portion 6B may be provided as a locking claw 41 supported by the boss 3. The locking claw 41 has a return portion 41a. The trim cord 40 is wound around the lower terminal portions 12a, 12b of the base material 10 and inserted into the gap between the rib 46 and the return portion 41a. The trim cord 40 is fixed by hooking its side portion onto the return portion 41a. This makes it difficult for the trim cord 40 to come off the locking claw 41. The gap between the rib 46 and the return portion 41a of the locking claw 41 can be set to any size appropriate for the specifications of the upholstery material 20.

[0038] In this way, the suspender cords 30 and the trim cords 40 are engaged with the multiple engaging portions 6A, 6B provided on the base material 10 and positioned opposite each other, so that the covering material 20 can be attached while being pulled in opposite directions by the lines.

[0039] In this embodiment, the covering material 20 is attached to the base material 10 by covering it with a total of four linear locking members 5 on the top and bottom, but the number of linear locking members 5 can be changed depending on the shape of the base material 10. If the base material 10 is a simple rectangle, one linear locking member 5 may be provided on each of the top and bottom of the covering material 20. If the shape is more complex, linear locking members 5 are attached to match the number of sides of the base material 10. It is not necessary to provide the same number of linear locking members 5 on the top and bottom, and the covering material may be attached with different numbers of linear locking members 5.

[0040] In this way, by providing rod-shaped or elongated plate-shaped linear locking members 5 at the ends of the skin material 20 and attaching them to the base material 10, the skin material 20 can be pulled by the line, preventing loosening and wrinkles. Therefore, the skin material 20 can be attached to the base material 10 without using adhesive. Because no adhesive is used, the workability when covering the base material with the skin material is improved and simplified. This reduces the number of work steps or man-hours.

[0041] Since the skin material 20 can be attached to the base material 10 without the use of adhesive, conventional equipment for using adhesives is no longer necessary. For example, the application booth used to apply the adhesive, the drying oven for drying the adhesive, the crimping mold, the press mold, the jigs, etc. are no longer necessary, allowing for a reduction in equipment and work space. The work process is simplified, making it easier to roll up the skin material 20 and reducing the number of work steps. Correction work is also reduced. Positional deviation and undulation of the stitches 15, which are the design lines, are also reduced, improving and stabilizing the appearance of the product. Because local stretching of the skin material is suppressed, the skin material expansion rate is almost uniform, and the flow of leather graining, etc. is suppressed, improving the appearance and merchantability.

[0042] <Arrangement and length of linear locking members> 2, the suspender cords 30 and trim cords 40 arranged on the front side of the armrest 1 are arranged so that the distance between them increases from the front end 1c toward the center of the armrest 1, in accordance with the shape of the armrest 1. In other words, the suspender cords 30 and trim cords 40 are arranged in a V-shape. In addition, the trim cords 40 arranged in front and behind the armrest 1 are arranged so that an extension overhead wire EL1 extending from the front trim cord 40 and an extension overhead wire EL2 extending from the rear trim cord 40 intersect at the center of the armrest 1.

[0043] In addition, the suspender cords 30 and trim cords 40 arranged on the rear side are arranged in a V-shape so that the distance between the suspender cords 30 and trim cords 40 increases as one moves from the rear end 1d of the armrest 1 toward the center. By arranging the suspender cords 30 and the trim cords 40 in this manner, the covered covering material 20 can be held in place in a balanced manner, and loose wrinkles can be suppressed.

[0044] The suspender cords 30 and the trim cords 40 may be arranged so that the distance between them narrows from the front end 1c or the rear end 1d toward the center. In this case, the suspender cords 30 and the trim cords 40 are arranged to intersect at the center of the armrest 1.

[0045] In addition, the lengths L2a, L2b of the trim cords 40 attached to the lower terminal portions 12a, 12b (second terminal portions) are formed to be longer than the lengths L1a, L1b of the suspender cords 30 attached to the upper terminal portions 11a, 11b (first terminal portions) on the upper side of the base material 10. By fastening the suspender cords 30 and the trim cords 40 in a balanced manner according to the shape of the armrest 1, loose wrinkles can be suppressed.

[0046] <Relationship between design lines and skin material> As described above, the stitches 15 are formed as decorative lines on the surface of the covering material 20. The stitches 15 are provided between the suspender cords 30 and the trim cords 40. By providing the stitch 15 between the suspender cord 30 and the trim cord 40, which are the linear fastening members 5, undulation and distortion of the stitch 15 are suppressed, improving the appearance and merchantability.

[0047] Furthermore, when covering the substrate 10 with the covering material 20, it is advisable to position the stitches 15 by covering them based on the upper terminal portions 11a, 11b or the lower terminal portions 12a, 12b of the substrate 10. Specifically, the trim cords 40 are attached to the engaging portions 6B of the lower terminal portions 12a, 12b, and the stitches 15 in the middle are pressed against the substrate 10, and the suspender cords 30 are fixed to the engaging portions 6A (hook portions 31) of the upper terminal portions 11a, 11b. Alternatively, the suspender cords 30 may be attached to the engaging portions 6A of the upper terminal portions 11a, 11b, and the stitches 15 in the middle are pressed against the substrate 10, and the trim cords 40 may be fixed to the engaging portions 6B of the lower terminal portions 12a, 12b. Attaching the stitches 15 in this manner allows for the stitches 15 to be attached while suppressing undulation and distortion.

[0048] <Point-shaped locking member> The armrest 1 is provided with point-like locking portions 4 for locking the upholstery material 20, separate from the engagement portions 6 for engaging the linear locking members 5 formed by the suspender cords 30 and the trim cords 40. As shown in FIG. 2, the point-like locking portions 4 are provided between the engagement portions 6 for locking the linear locking members 5, and lock portions of the upholstery material 20 that cannot be fastened by the linear locking members 5. For example, at the front end 1c of the armrest 1, the upholstery material 20 is attached by a seam cover, and the point-like locking portions 4 are used to secure it. Alternatively, the end portion of the upholstery material 20 may be fastened by hooking it.

[0049] <Another Example 1 of Linear Locking Member> Next, another example of the linear fastening members 5 provided on the upper terminal portions 11a, 11b of the base material 10 will be described with reference to Fig. 6. The suspender cord 30A shown in Fig. 6 is a linear fastening member 5, which has a trapezoidal cross section and is connected to the upper end portion 21 of the covering material 20 via a nonwoven fabric 33. The nonwoven fabric 33 and the upper end portion 21 of the covering material 20 are joined by a sewn portion 23.

[0050] 6, the upper terminal portions 11a and 11b of the base material 10 are provided with holding portions 32 each having a recess 35 with an opening on the upper side, as an engaging portion 6A. By inserting the suspender cord 30A downward (in the direction of arrow C) into the recess 35, the holding portions 32 and the suspender cord 30A engage with each other, and the upper end portion 21 of the covering material 20 can be attached to the base material 10.

[0051] <Another Example 2 of Linear Locking Member> Another example of the linear locking member 5 provided on the upper terminal portions 11a and 11b will be described with reference to Figures 7A to 8. A long, thin, flat trim cord 30B is attached to the upper end portion 21 of the covering material 20 as the linear locking member 5.

[0052] Hook portions 31 serving as the engaging portions 6A are provided so as to extend outward from the upper terminal portions 11a, 11b of the base material 10. Meanwhile, as shown in FIG. 7B, a through hole 34 through which the hook portion 31 passes is formed near the upper end portion 21 of the covering material 20. As shown in FIG. 7B, the through hole 34 is positioned so that a portion of the through hole 34 overlaps with the trim cord 30B. Due to the overlapping portion, as shown in FIG. 7A, after the trim cord 30B is attached, the upper side portion 30Bb of the trim cord 30B rotates and comes into contact with the return portion 31a, resulting in a slightly inclined state.

[0053] The installation procedure will be explained with reference to Figure 8. As shown in the upper part of Figure 8, the tip of the hook 31 is inserted into the through-hole 34 of the covering material 20. When the upper end 21 is moved inward in the direction of arrow E, as shown in the middle part of Figure 8, the tip of the hook 31 comes into contact with the upper side part 30Bb of the trim cord 30B, causing the trim cord 30B to rotate in the direction of arrow F. Although the trim cord 30B rotates, it stretches and does not affect workability.

[0054] 8, when the trim cord 30B is moved in the direction of arrow E, the hook portion 31 passes over the trim cord 30B, and the upper side portion 30Bb of the trim cord 30B abuts against the return portion 31a. This makes it difficult for the trim cord 30B to come off the hook portion 31, and the trim cord 30B is attached to the upper terminal portion 11b of the base material 10.

[0055] <Alternative Example 3 of Linear Locking Member> While the trim cord 30B (linear locking member 5) shown in FIG. 8 is arranged on the outside of the upper end portion 21 of the upholstery material 20, the trim cord 30C may be arranged on the inside of the upper end portion 21 as shown in FIG. 9. In this case, the trim cord 30C and the upper end portion 21 are joined at a sewn portion 23, and a through-hole 34A is provided that passes through both the trim cord 30C and the upper end portion 21. When attaching, the trim cord 30C is attached by passing the hook portions 31 extending from the upper terminal portions 11a, 11b of the base material 10 through the through-hole 34A that passes through both the trim cord 30C and the upholstery material 20. By passing the hook portions 31 through the through-holes 34A that pass through both the trim cord 30C and the upholstery material 20, the upper end portion 21 of the upholstery material 20 can be attached more firmly. 10, the through-holes 34 may be formed only in the trim cord 30C, which improves the yield compared to when both are formed.

[0056] <Manufacturing method for interior components> A method for manufacturing the armrest 1, which is an interior member of the vehicle door D according to this embodiment, will be described below. A base material 10 of an armrest 1 having a design surface 2 and a cover material 20 covering the base material 10 are prepared (step S1). At this time, linear fastening members 5 (suspender cords 30 or trim cords 40) are provided on the ends (upper end 21 and lower end 22) of the cover material 20. Next, the linear locking member 5 is attached to the base material 10 at a position that is not visible from the design surface side (step S2). More specifically, the linear locking member 5 is engaged with an engaging portion 6 provided on the back surface 10b of the base material 10. This completes the armrest 1 covered with the covering material 20. When covering the substrate 10 with the skin material 20, it is advisable to first engage the linear fastening member 5 at one end with the engaging portion 6, then press the decorative line stitch 15 in the middle against the substrate 10, and then fasten the linear fastening member 5 at the other end to the engaging portion 6. By fastening in this manner, loose wrinkles are suppressed, and undulation or distortion of the stitch 15 is also suppressed, improving the merchantability of the appearance.

[0057] The above description has been given with reference to the drawings, with reference to an armrest provided in a vehicle door lining as an example of a vehicle interior part according to this embodiment. However, the vehicle interior part is not limited to this and can be applied to various other interior parts. For example, the present invention can be applied to upper members, center members, lower members, pillars, front instrument panels, seat backs, and other parts to which a skin is attached. [Explanation of symbols]

[0058] D. Vehicle door P door panel Pa Pad 1 Armrest (vehicle interior parts) 1a Top surface 1b side 1c front end 1d rear end 1e Intersection 2 Design surface 3. Boss 4 Point-shaped locking part 5 Linear locking member 6, 6A, 6B Engagement part 10 Base material 10a surface 10b back side 11a, 11b Upper terminal portion (first terminal portion) 12a, 12b Lower terminal portion (second terminal portion) 15 Stitch (design line) 20 Skin material 21 Upper end 22 Lower end 23 Sewing section 30, 30A Suspender cord (first linear fastening member) 30B, 30C Trim cord (first linear locking member) 31 Hook portion (engagement portion) 31a Return part 32 Holding part 33 Nonwoven fabric 34, 34A through hole 35 recess 40 Trim cord (second linear locking member) 41 Locking claw (engagement part) 46 Ribs 50 Door lining 51 Upper member 52 Center member 53 Lower member 54 Door handle 55 Open / close switch 56 Door pocket

Claims

1. An interior part for a vehicle having a design surface, The device comprises a substrate and a skin material that covers the substrate, the skin material has a linear locking member at an end of the skin material, the entire linear locking member is disposed on the back side of the base material, the linear locking member is attached to the base material at a position that cannot be seen from the design surface side, the base material has an engaging portion on the back side of the terminal portion that engages with the linear engaging member, the engaging portion includes a locking claw that locks the linear locking member, The vehicle interior part is characterized in that the linear locking member is inserted into a gap between a rib provided on a lower terminal portion of the base material and a lower return portion provided on the locking claw, and is attached to the base material by being disposed on the back side of the base material and engaging with the locking claw.

2. 2. The vehicle interior part according to claim 1, wherein the rib and the lower turned-up portion are disposed on the same plane.

3. The linear locking member is provided in plurality, and the linear locking member includes a first linear locking member attached to a first terminal portion of the base material; a second linear locking member attached to a second terminal portion of the base material opposite to the first terminal portion, The upper end of the skin material is connected to the upper end via a nonwoven fabric and has a rod-shaped suspender cord as the first linear fastening member, a trim cord formed in the shape of an elongated plate as the second linear fastening member, the trim cord being connected to the lower end of the skin material by sewing; 2. The vehicle interior part according to claim 1, wherein a fabric member connecting the end of the skin material and the linear fastening member is disposed on the back side of the base material.

4. The vehicle interior part according to claim 3, wherein the first linear fastening members and the second linear fastening members are arranged so as to be spaced apart from each other from the end portions of the base material toward the center thereof.

5. 5. The vehicle interior part according to claim 3, wherein the first linear fastening member is attached to the first terminal portion on the upper side of the base material, the second linear fastening member is attached to the second terminal portion on the lower side of the base material, and the second linear fastening member is longer than the first linear fastening member.

6. the first linear fastening member is attached to the first terminal portion on the upper side of the substrate, and the second linear fastening member is attached to the second terminal portion on the lower side of the substrate; 6. The vehicle interior part according to claim 3, wherein the skin material has a decorative line between the first linear fastening member and the second linear fastening member.

7. The vehicle interior part according to any one of claims 1 to 6, wherein the engaging portion is provided so as to protrude in a direction toward the rear side of the base material.

8. a plurality of the linear locking members are attached to the base material by the engaging portions in a line in a predetermined direction, the base material has a dot-like locking portion on the back side of the terminal portion, separate from the engaging portion, for locking the skin material; 8. The vehicle interior part according to claim 7, wherein the locking portion is disposed between a plurality of the linear locking members.

9. a through hole is formed in the vicinity of an end portion of the skin material, the engaging portion includes a hook portion that hooks onto the linear locking member, An upper return portion is provided at an end of the hook portion, The vehicle interior part according to claim 7 or 8, wherein the linear fastening member is attached to the base material by being hooked onto the upper return portion of the hook portion inserted into the through hole.

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