Seat hanging structure and assembly method

Abstract

To appropriately and easily connect a suspension edge and a suspension member in a sheet suspension structure provided with a suspension edge having a curved profile and a method of assembling the same.SOLUTION: A suspension edge 11 of a skin material is suspended in a suspension groove 9 provided in a pad 5 via a suspension member 14. The suspension member 14 includes a first edge that can be connected to the suspension edge 11 and a second edge that engages the engaging member 10 arranged at the bottom of the suspension groove 9. The first edge 11 has an easily deformable portion 17 and marks 18 provided on both sides of the easily deformable portion 17. The suspension edge 11 has a mark 19 at a position coinciding with the mark 18.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present disclosure relates to a hanging structure and an assembly method thereof for a seat including a pad and a cover material covering the pad and having a hanging portion. [Background technology]

[0002] In a seat such as a vehicle seat that has a pad and a cover material that covers the pad, a linear recessed hanging portion is sometimes provided on the seating surface of the seat cushion and the seat back in order to maintain the external shape. The cover material is hung into this hanging portion and fixed to an engagement member that is fixed to the pad.

[0003] For example, Patent Document 1 describes a hanging member that includes a cloth-like connecting part that extends in the same direction as a hanging groove provided in the pad and is fixed to an end of the covering material, and an engaged part that extends in the same direction and is connected to the tip of the connecting part so as to bulge in the thickness direction of the connecting part. The covering material is hung onto the pad by engaging the engaged part with multiple clips that are fixed to the bottom of the groove of the pad. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-1559 A Summary of the Invention [Problem to be solved by the invention]

[0005] In a seat having a hanging portion, it may be desired to provide an unevenness toward the seating surface in a direction along the hanging portion at a portion adjacent to the hanging groove of the pad. In such a case, if the bottom height of the hanging groove is constant, unevenness will occur at the edge of the covering material to be hung. The hanging member described in Patent Document 1 has an engaged portion that resists bending deformation, so it is difficult to bend along the uneven edge of the covering material and fix it to the covering material by sewing or the like. For this reason, the hanging member is connected only to the part where the edge of the covering material extends linearly. Therefore, hanging cannot be performed at a place where there is no hanging member, and the uneven design of the surface of the seat cannot be fully reproduced. In addition, since the hanging member is arranged to avoid the bent or curved part of the edge of the covering material, a large number of relatively short hanging members are required, and the number of parts increases.

[0006] In view of such problems, the present invention aims to provide a seat hanging structure having an uneven hanging edge portion and an assembly method thereof, which enables the connection between the hanging edge portion and the hanging member to be performed appropriately and easily. [Means for solving the problem]

[0007] The hanging structure of a seat (1) according to one embodiment of the present invention (8) comprises a pad (5) having a hanging groove (9), a plurality of engagement members (10) arranged at intervals along the longitudinal direction of the hanging groove (9) at the bottom of the hanging groove (9) and fixed to the pad (5), a skin material (6) including a hanging edge portion (11) extending in the longitudinal direction within the hanging groove (9) and covering the surface of the pad (5), and a hanging edge portion (12) extending in the longitudinal direction within the hanging groove (9). The hanging member (10) has a first edge (12) connected to the hanging edge (11) and a second edge (13) engaging with the engaging member (10) so as to engage the hanging member (11) with the engaging member (10), and extends within the hanging groove (9) in the longitudinal direction thereof, the end edge of the hanging edge (11) has a convex or concave curved contour, and an easily deformable portion (17) is provided on the first edge (12) side of the hanging member (14).

[0008] According to this configuration, the easily deformable portion makes the hanging member easily deformable, so that it is easy to attach the hanging member in an appropriately deformed state to the hanging edge portion having a convex or concave curved contour. Also, according to this configuration, it is not necessary to arrange the hanging member to avoid the bent or curved portion of the edge of the skin material, so that an increase in the number of parts can be suppressed.

[0009] One embodiment of the present invention is characterized in that, in the above configuration, the easily deformable portion (17) includes a notch portion cut into the first edge portion (12) so as to have a predetermined length in the longitudinal direction.

[0010] According to this configuration, since the easily deformable portion is a cut portion, the easily deformable portion can be easily formed.

[0011] One embodiment of the present invention is characterized in that, in any of the above configurations, the hanging member (14) is substantially easier to bend and deform on the first edge (12) side than on the second edge (13) side.

[0012] According to this configuration, since the first edge portion connected to the hanging edge portion is more easily bent and deformed than the second edge portion, the operation of connecting the hanging edge portion and the first edge portion is facilitated.

[0013] One embodiment of the present invention is characterized in that, in any of the above configurations, the first edge portion (12) and the hanging edge portion (11) are provided with matching markings (18, 19) on both sides of the easily deformable portion (17).

[0014] According to this configuration, the marks are provided so as to sandwich the easily deformable portion, so that by aligning the marks, the hanging member is bent and deformed into an appropriate shape and positioned in an appropriate position.

[0015] One embodiment of the present invention is characterized in that, in the above configuration, the first edge portion (12) is connected to the hanging edge portion (11) by sewing along a predetermined sewing line (20), the edge of the first edge portion (12) of the hanging member is aligned with the edge of the hanging edge portion (11), and the first edge portion (12) is folded back at the sewing line (20).

[0016] According to this configuration, when the hanging edge portion and the first edge portion are connected to each other by sewing, the hanging edge portion and the first edge portion can be sewn in an overlapping state so that their end edges are aligned, making it easy to align the mark when the hanging member is bent.

[0017] One embodiment of the present invention is characterized in that, in the above configuration, the marks (18, 19) of the first edge portion (12) and the hanging edge portion (11) include notches cut into the first edge portion (12) and the hanging edge portion (11), and the sewing line (20) is provided at a position that avoids the marks (18, 19).

[0018] According to this configuration, since the sewing line avoids the mark, even if the mark is a notch, the connection strength between the hanging edge portion 11 and the first edge portion 12 is not impaired.

[0019] One embodiment of the present invention is characterized in that in any of the above configurations including marks, the engagement member (10) is provided in a position that aligns with the marks (18, 19).

[0020] According to this configuration, since the mark is provided at a position that aligns with the engaging member, the hanging edge can be inserted into the appropriate position of the hanging groove.

[0021] In one embodiment of the present invention, in any of the above configurations, the engaging member (10) is disposed at a position shifted in the longitudinal direction with respect to the easily deformable portion (17). To The present invention is characterized in that it is provided.

[0022] The second edge portion deforms so as to bend most at a position that matches the easily deformable portion, and with this configuration, the second edge portion engages with the engaging member while avoiding the most deformed portion, making it easier to engage the second edge portion with the engaging member.

[0023] One embodiment of the present invention is characterized in that, instead of the straight-above configuration, one of the engagement members (10) is provided at a position that aligns with the easily deformable portion (17).

[0024] According to this configuration, the most greatly curved portion of the hanging edge engages with the engaging member via the hanging member, so that the unevenness of the seating surface of the seat can be easily reproduced as designed.

[0025] One embodiment of the present invention is a seat (10) comprising: a pad (5) having a hanging groove (9); a plurality of engagement members (10) fixed to the pad (5) and arranged at intervals along the longitudinal direction of the hanging groove (9) at the bottom of the hanging groove (9); a skin material (6) covering a surface of the pad (5) including a hanging edge portion (11) extending in the longitudinal direction within the hanging groove (9) and defining a convex or concave curved contour; and a hanging member (14) extending in the longitudinal direction within the hanging groove (9), the hanging edge portion (11) having a first edge portion (12) connected to the hanging edge portion (11) and a second edge portion (13) engaging with the engagement member (10) so as to engage the hanging edge portion (11) with the engagement member (10). A method for assembling a hanging structure (8) of 1), comprising the steps of: providing an easily deformable portion (17) on the first edge portion (12); providing marks (18, 19) on the first edge portion (12) and the hanging edge portion (11) on both sides of the easily deformable portion (17), the marks (18, 19) being positioned to match each other when the first edge portion (12) and the hanging edge portion (11) are connected to each other; bending the hanging member (14) along the hanging edge portion (11) to match the marks (18, 19) on the first edge portion (12) and the hanging edge portion (11) to each other; connecting the first edge portion (12) and the hanging edge portion (11) to each other; and engaging the second edge portion (13) with the engaging member (10). The easily deformable portion (17) and the engaging member (10) are provided so as to be disposed at positions offset from each other in the longitudinal direction when the second edge portion (13) is engaged with the engaging member (10). It is characterized by:

[0026] With this configuration, the presence of the easily deformable portion makes the suspending member easier to bend, and by aligning the marks on both sides of the easily deformable portion at the first edge portion with the marks on the suspending member, the suspending member takes on the appropriate shape and is positioned in the appropriate position, making assembly easier. Effect of the Invention

[0027] According to the seat hanging structure of the present invention, the easily deformable portion enables the hanging member to be easily connected to the hanging edge portion in an appropriate bent state.

[0028] According to an embodiment of the present invention, the easily deformable portion includes a notch portion, so that the easily deformable portion can be easily formed.

[0029] According to an embodiment of the present invention, the first edge portion side is substantially easier to bend and deform than the second edge portion side, which facilitates the operation of connecting the first edge portion and the hanging edge portion.

[0030] According to one embodiment of the invention, the indicia ensure that the hanging member is properly shaped and properly positioned.

[0031] According to an embodiment of the present invention, by folding back the first edge portion, it becomes easy to connect the first edge portion and the hanging edge portion to each other before folding back.

[0032] According to one embodiment of the present invention, the sewing lines avoid the marks formed by the cuts, so that forming the marks by cuts does not impair the strength of the connection between the first edge and the hanging edge.

[0033] According to one embodiment of the present invention, the engagement member is provided at a position that aligns with the mark, so that the hanging edge can be inserted into the hanging groove at a suitable position.

[0034] According to one embodiment of the present invention, the engaging member is disposed offset from the easily deformable portion, which facilitates the operation of engaging the second edge portion with the engaging member.

[0035] According to one embodiment of the present invention, since the engaging member is arranged in alignment with the easily deformable portion, the unevenness of the seating surface of the seat can be easily reproduced as designed.

[0036] According to the method of assembling a seat hanging structure of the present invention, the easily deformable portion and the mark make it possible to easily connect the hanging member to the hanging edge portion in an appropriate shape and at an appropriate position. [Brief description of the drawings]

[0037] [Figure 1] FIG. 1 is a perspective view showing a vehicle seat according to an embodiment; [Diagram 2] 1 is a cross-sectional view of a hanging structure according to an embodiment; [Diagram 3] 1A and 1B are cross-sectional views of the seat cushion pad according to the embodiment, taken perpendicular to the left-right direction (A: left-right central portion, B: portion adjacent to the hanging portion extending forward and backward on the left and right side portions) [Figure 4] An explanatory diagram of the hanging procedure of the hanging structure according to the embodiment (A: skin material, B: hanging member) [Diagram 5] FIG. 1 is an explanatory diagram of a hanging procedure of a hanging structure according to an embodiment (a state in which a hanging member is overlapped and sewn onto a skin material); [Figure 6] An explanatory diagram of the hanging procedure of the hanging structure according to the embodiment (the state in which the cover material is folded back along the sewing line (upper figure) and the hanging groove of the pad (lower figure)) DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0038] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view of a vehicle seat 1 (hereinafter, referred to as "seat 1") according to an embodiment. The seat 1 includes a seat cushion 2 supported by a vehicle body, a seat back 3 connected to the seat cushion 2, and a headrest 4 connected to the seat back 3. Each of the seat cushion 2, the seat back 3, and the headrest 4 includes a pad 5 (see Fig. 2) made of a foamed resin such as urethane foam, and a skin material 6 covering the seating side of the pad 5. The seating side surfaces of the seat cushion 2 and the seat back 3 are formed with a plurality of linearly recessed hanging portions 7 in the vertical and horizontal directions by hanging the skin material 6 inside the pad 5.

[0039] 2 shows a hanging structure 8 of a seat 1 according to an embodiment. The hanging structure 8 includes a pad 5 having a hanging groove 9, a plurality of engagement members 10 that are arranged at intervals along the longitudinal direction (extension direction) of the hanging groove 9 at the bottom of the hanging groove 9 and are fixed to the pad 5, a skin material 6 that includes a hanging edge portion 11 that extends within the hanging groove 9 in the longitudinal direction of the hanging groove 9 and covers the surface of the pad 5, and a hanging member 14 that extends within the hanging groove 9 in the longitudinal direction thereof and has a first edge portion 12 connected to the hanging edge portion 11 to engage the hanging edge portion 11 with the engagement member 10 and a second edge portion 13 (engaged portion) that engages with the engagement member 10.

[0040] The pad 5 is made of foamed resin such as urethane foam. The hanging grooves 9 are open toward the seating surface and include ones that extend vertically (front-rear direction in the seat cushion 2, and up-down direction in the seat back 3) and ones that extend horizontally (left-right direction). The bottom surface of the hanging groove 9 extends on a substantially flat surface at a certain position in the thickness direction.

[0041] The engaging member 10 is a clip including a substrate 15 embedded in the bottom of the hanging groove 9 and a pair of locking claws 16 extending from the substrate 15 into the hanging groove 9. The engaging member 10 made of a clip is embedded in the pad 5 when the pad 5 is foamed.

[0042] The hanging edge 11 of the covering material 6 is formed by abutting the ends of two covering materials 6 so that their surfaces match and connecting them by sewing or the like. The hanging edge 11 may also be formed by folding one covering material 6 so that the surface side forms a valley and connecting the abutting parts by sewing or the like. As shown in Fig. 3, the surface of the pad 5 is uneven and the bottom surface of the hanging groove 9 extends at a fixed position in the thickness direction of the pad 5, so that the edge of the hanging edge 11 has a curved contour that is convex or concave, as shown in Fig. 4.

[0043] As shown in FIG. 2, the hanging member 14 is made of a cloth-like material such as a nonwoven fabric, and includes a first edge 12 that extends in the longitudinal direction of the hanging groove 9 and is connected to the hanging edge 11 by sewing or the like, and a second edge 13 that is made of a resin or the like and extends in the longitudinal direction of the hanging groove 9 and is connected to the end of the first edge 12 on the hanging groove 9 side. The hanging member 14 extends linearly when no force is applied, but is bendable. The second edge 13 bulges out on both sides in the thickness direction of the first edge 12 relative to the first edge 12 so as to be engaged with the locking claws 16 of the engagement member 10, and has a rigidity to the extent that the locking claws 16 can be engaged. The second edge 13 has a bending rigidity higher than that of the first edge 12. That is, the first edge 12 is more easily bent than the second edge 13. The second edge portion 13 is formed by injection molding, and the first edge portion 12 is connected to the second edge portion 13 by being attached to a cavity of a mold when the second edge portion 13 is molded. When the first edge portion 12 and the second edge portion 13 are formed from the same resin, the hanging member 14 may be formed by extrusion molding. The first edge portion 12 is folded back along the connecting portion with the hanging edge portion 11. Instead of the resin bulging in the thickness direction as the second edge portion 13, a first wire extending along the hanging groove 9 and held by the first edge portion 12 and a C-ring engaged with the first wire may be used, and instead of a clip as the engaging member 10, a second wire engaged with the C-ring may be used (not shown).

[0044] As shown in FIG. 4, the first edge 12 is provided with an easily deformable portion 17, and the hanging member 14 is more easily bent at the easily deformable portion 17 than at other portions. The easily deformable portion 17 is formed by a notch cut out from the edge on the side connected to the skin material 6. The notch constituting the easily deformable portion 17 has a predetermined length at the edge side of the first edge 12. Instead of a notch, the easily deformable portion 17 may be formed by a portion thinner than other portions of the first edge 12. The easily deformable portion 17 shown in the figure is rectangular when viewed from a direction perpendicular to the surface of the cloth-like first edge 12, but may be other shapes such as a triangle, a circle, or a semicircle. It is preferable that the first edge 12 is more easily deformed than the second edge even at a portion shifted from the easily deformable portion 17 in the longitudinal direction of the hanging groove 9. As shown in FIG. 6, the engagement member 10 is preferably provided at a position shifted from the easily deformable portion 17 in the longitudinal direction of the hanging groove 9. 6, the engaging member 10 may be provided at a position that aligns with the easily deformable portion 17. The easily deformable portion 17 is provided at a position that corresponds to a part of the portion of the hanging edge portion 11 that is bent convexly or concavely.

[0045] As shown in Fig. 6, a plurality of marks 18 are provided on the edge of the first edge portion 12 on the side to which the second edge portion is not attached. At least one mark 18 is provided on each side of the easily deformable portion 17. Furthermore, marks 19 are provided on the hanging edge portion 11 of the skin material 6 at positions that match the marks 18. The marks 18, 19 are preferably cutouts having shapes that match each other, but may be marks written with a pen or the like, and may be erased after the hanging edge portion 11 and the first edge portion 12 are connected to each other. At least some of the marks 18, 19 are provided at positions that match the engaging member 10.

[0046] A hanging method for the hanging structure 8 will be described with reference to Figs.

[0047] First, as shown in Figure 4, a worker cuts out the first edge 12 to provide an easily deformable portion 17, and also provides multiple marks 18 on the edge of the first edge 12 of the hanging member 14 on the side to which the second edge is not attached. The easily deformable portion 17 is provided at a position corresponding to part of the convex or concave bent portion of the hanging edge 11. The worker also provides marks 19 on the hanging edge 11 of the skin material 6 at positions that match the marks 18.

[0048] Next, as shown in FIG. 5, the worker bends the hanging member 14 along the hanging edge 11 so that the mark 19 on the hanging edge 11 and the mark 18 on the first edge 12 match each other, and the edge of the hanging edge 11 and the edge of the first edge 12 opposite to the second edge are aligned with each other, and overlaps the hanging member 14 on the skin material 6. The worker sews the overlapping first edge 12 of the hanging member 14 and the hanging edge 11 of the skin material 6 together. The dashed line in FIG. 5 indicates the sewing line 20. The sewing line 20 is provided at a position that avoids the marks 18 and 19 formed by the notches. The first edge 12 and the hanging edge 11 may be connected to each other by means other than sewing, such as by adhesion.

[0049] 6, the worker folds back the first edge portion 12 along the sewing line 20 so that the skin material 6 moves to the opposite side of the second edge portion 13 relative to the first edge portion 12. The worker inserts the second edge portion 13 into the hanging groove 9 and engages it with the engaging member 10.

[0050] The effects of the above embodiment will be described. The provision of the easily deformable portion 17 makes it easy to maintain the state in which the hanging member 14 is bent along the hanging edge portion 11, and makes it easy to connect the hanging member 14 to the hanging edge portion 11 having the convexly or concavely curved edge. In addition, the provision of the marks 18, 19 on both sides of the easily deformable portion 17 also makes it easy to connect the hanging member 14 to the hanging edge portion 11 having the convexly or concavely curved edge. Since the hanging member 14 is connected to the hanging edge portion 11 having the convexly or concavely curved edge, the unevenness of the seating surface of the seat 1 can be easily reproduced as designed.

[0051] Since the first edge portion 12 is more easily bent and deformed than the second edge portion 13, the connecting operation such as sewing between the hanging edge portion 11 and the first edge portion 12 becomes easy.

[0052] When the hanging edge 11 and the first edge 12 are connected to each other by sewing, the hanging edge 11 and the first edge 12 are sewn in an overlapping state so that their edges are aligned, so that it is easier to align the marks 18, 19 when the hanging member 14 is bent compared to when the hanging edge 11 and the first edge 12 are connected so that their edges butt against each other.

[0053] At least a part of the marks 18, 19 is provided at a position that matches the engaging member 10, so that the hanging edge 11 can be inserted at an appropriate position in the hanging groove 9. The sewing line 20 is provided at a position that avoids the marks 18, 19 that are formed by notches, so that the strength of the connection between the hanging edge 11 and the first edge 12 is not impaired.

[0054] The second edge 13 deforms so as to bend most at a position that aligns with the easily deformable portion 17. If the engaging member is provided only at a position that is shifted in the longitudinal direction of the hanging groove 9 relative to the easily deformable portion 17, the second edge 13 will engage with the engaging member 10 avoiding the most deformed portion, making it easier to engage the second edge 13 with the engaging member 10. If the engaging member 10 is provided at a position that aligns with the easily deformable portion 17, the most bent portion of the hanging edge 11 will engage with the engaging member 10 via the hanging member 14, making it easier to reproduce the unevenness of the seating surface of the seat 1 as designed.

[0055] Even if the edge of the hanging end is uneven, a single long hanging member can be used without dividing the hanging member, thereby preventing an increase in the number of parts.

[0056] Although the description of the specific embodiment has been completed above, the present invention is not limited to the above embodiment and can be modified in a wide range of ways. The present invention can be applied not only to vehicle seats, but also to seats for other vehicles and seats placed in houses, etc., as long as the seat has a pad and a cover material. [Explanation of symbols]

[0057] 1: Sheet 5: Pad 6:Skin material 8: Suspended structure 9: Hanging groove 10: Engagement member 11: Hanging edge 12: First edge 13: Second edge 14: Hanging member 17: Easy to deform part 18: Marking of hanging parts 19: Marking of hanging edge 20: Sewing line

Claims

1. A pad having a hanging groove; a plurality of engagement members disposed at a bottom of the hanging groove along a longitudinal direction of the hanging groove at intervals from one another and fixed to the pad; a skin material including a hanging edge portion extending in the longitudinal direction within the hanging groove and covering a surface of the pad; a hanging member having a first edge portion connected to the hanging edge portion and a second edge portion engaging with the engaging member so as to engage the hanging edge portion with the engaging member, the hanging member extending in the hanging groove in the longitudinal direction thereof; The edge of the hanging edge has a convex or concave curved profile, An easily deformable portion is provided on the first edge portion side of the hanging member, A seat hanging structure, characterized in that the engaging member is provided at a position shifted in the longitudinal direction from the easily deformable portion.

2. 2. The sheet hanging structure according to claim 1, wherein the easily deformable portion includes a notch portion cut into the first edge portion so as to have a predetermined length in the longitudinal direction.

3. 3. The sheet hanging structure according to claim 1, wherein the hanging member is substantially easier to bend and deform at the first edge side than at the second edge side.

4. 4. A sheet hanging structure as claimed in claim 1, characterized in that the first edge portion and the hanging edge portion are provided with markings that align with each other on both sides of the easily deformable portion.

5. The first edge portion is connected to the hanging edge portion by sewing along a predetermined sewing line, 5. The seat hanging structure according to claim 4, wherein an end edge of the first edge portion of the hanging member is aligned with an end edge of the hanging edge portion, and the first edge portion is folded back at the sewing line.

6. the markings on the first edge portion and the hanging edge portion include notches cut into the first edge portion and the hanging edge portion; 6. The seat hanging structure according to claim 5, wherein the sewing line is provided at a position that avoids the mark.

7. 7. The seat hanging structure according to claim 4, wherein the engaging member is provided at a position that aligns with the mark.

8. A pad having a hanging groove; a plurality of engagement members disposed at a bottom of the hanging groove along a longitudinal direction of the hanging groove at intervals from one another and fixed to the pad; a skin material including an inwardly extending edge portion that defines a convex or concave curved contour extending in the inwardly extending groove in the longitudinal direction and covering a surface of the pad; A method for assembling a seat hanging structure comprising: a hanging member having a first edge portion connected to the hanging edge portion and a second edge portion engaging with the engaging member so as to engage the hanging edge portion with the engaging member, and extending in the hanging groove in a longitudinal direction thereof, Providing an easily deformable portion on the first edge portion; providing marks on the first edge portion and the hanging edge portion on both sides of the easily deformable portion, the marks being positioned to coincide with each other when the first edge portion and the hanging edge portion are connected to each other; bending the hanging member along the hanging edge so that the indicia of the first edge and the hanging edge are aligned with one another; connecting the first edge and the hanging edge to each other; engaging the second edge with the engagement member; Equipped with An assembly method according to claim 1, wherein the easily deformable portion and the engaging member are arranged so as to be positioned at positions offset from each other in the longitudinal direction when the second edge portion is engaged with the engaging member.

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