JP2022145180A - Suspension structure of seat and its assembly method - Google Patents

Abstract

[Problem] To provide a seat hanging structure having a hanging edge with a curved contour, and an assembly method thereof, which allows the hanging edge and a hanging member to be connected appropriately and easily. [Solution] The hanging edge 11 of the covering material is hung into a hanging groove 9 provided in a pad 5 via a hanging member 14. The hanging member 14 includes a first edge portion that can be connected to the hanging edge 11, and a second edge portion that engages with an engagement member 10 arranged at the bottom of the hanging 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 hanging edge 11 has marks 19 at positions that match the marks 18. [Selected Figure] Figure 6

Description

TECHNICAL FIELD The present disclosure relates to a suspension structure and an assembly method thereof in a seat including a pad and a skin material covering the pad and provided with a suspension portion.

In a seat such as a vehicle seat that includes a pad and a covering material that covers the pad, the seating surface of the seat cushion and seat back may be provided with a linear recessed hanging portion to maintain the external shape. be. The upholstery material is hung by the hanging portion and fixed to the engaging member fixed to the pad.

For example, Patent Literature 1 discloses a cloth-like connection portion that extends in the same direction as a suspension groove provided in a pad and is fixed to the end of a skin material, and a connection portion that extends in the same direction. A suspension member is described which includes an engaged portion connected to a distal end portion of a connecting portion so as to bulge in the thickness direction. The upholstery is hung on the pad by engaging the engaged portion with a plurality of clips fixed to the bottom of the groove of the pad.

JP-A-2020-1559

In a seat having a hanging portion, there is a case where it is desired to provide unevenness in a portion adjacent to the hanging groove of the pad toward the seating surface in a direction along the hanging portion. In such a case, if the height of the bottom of the hanging groove is constant, unevenness will occur in the hanging edge of the skin material. In the suspending member described in Patent Document 1, since the engaged portion repels bending deformation, it is difficult to bend along the uneven edge of the skin material and fix it to the skin material by sewing or the like. there were. For this reason, the suspending member was connected only to the part where the edge of the skin material extends linearly. Therefore, it was not possible to suspend the portion where the suspension member did not exist, and the uneven design of the surface of the sheet could not be sufficiently reproduced. In addition, since the suspension members are arranged to avoid bent or curved portions of the edges of the skin material, a large number of relatively short suspension members are required, resulting in an increase in the number of parts.

In view of such problems, the present invention provides a sheet hanging structure having uneven hanging edges and a method for assembling the same, in which the hanging edges and the hanging member can be connected appropriately and easily. The purpose is to make it possible.

The suspension structure of the sheet (1) according to an embodiment of the present invention is (8), a pad (5) having a suspension groove (9), and the suspension at the bottom of the suspension groove (9). a plurality of engaging members (10) spaced apart from each other along the longitudinal direction of the groove (9) and fixed to the pad (5); a skin material (6) covering the surface of said pad (5) including a hanging edge (11) extending in a direction, and said hanging edge (11) engaging said engaging member (10) said hanging groove having a first edge (12) connected to said hanging edge (11) and a second edge (13) engaging said engaging member (10) to stop said hanging groove; (9) a suspension member (10) extending in its longitudinal direction, the edge of said suspension edge (11) having a convex or concave curved profile, said suspension A deformable portion (17) is provided on the side of the first edge (12) of the insert member (14).

According to this configuration, the suspending member is easily deformed by the deformable portion, so that it is easy to attach the suspending member to the suspending edge portion having a contour curved in a convex or concave shape in an appropriately deformed state. becomes. In addition, according to this configuration, since it is not necessary to dispose the suspending member while avoiding the bending portion or the curved portion of the edge of the skin material, it is possible to suppress an increase in the number of parts.

In one embodiment of the present invention, in the above configuration, the deformable portion (17) is a notch cut in the first edge (12) so as to have a predetermined length in the longitudinal direction. It is characterized by including a part.

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

In one embodiment of the present invention, in any one of the above configurations, the hanging member (14) is bent substantially more at the first edge (12) side than at the second edge (13) side. It is characterized by being easily deformable.

According to this configuration, since the first edge connected to the hanging edge is easier to bend and deform than the second edge, the connection work between the hanging edge and the first edge is facilitated.

In one embodiment of the present invention, in any one of the above configurations, the first edge (12) and the hanging edge (11) are mutually provided on both sides of the easily deformable portion (17). It is characterized by the provision of matching markings (18, 19).

According to this configuration, since the marks are provided so as to sandwich the easily deformable portion, by aligning the marks, the suspension member is bent into an appropriate shape and arranged at an appropriate position.

An embodiment of the invention is characterized in that, in the above configuration, said first edge (12) is connected to said hanging edge (11) by sewing along a predetermined sewing line (20). , the edge of said first edge (12) of said hanging member is aligned with the edge of said hanging edge (11), and said first edge (12) extends along said sewing line (20); ) is folded back.

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 are overlapped so that their edges are aligned with each other. Since it can be sewn, it becomes easy to align the marks with the hanging member bent.

An embodiment of the present invention is characterized in that, in the above configuration, said markings (18, 19) on said first edge (12) and said hanging edge (11) are marked on said first edge (12). and a notch cut into the hanging edge (11), and the sewing line (20) is provided at a position avoiding the marks (18, 19).

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

An embodiment of the present invention is characterized in that, in any of the structures including the marks, the engaging member (10) is provided at a position aligned with the marks (18, 19). .

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

In one embodiment of the present invention, in any of the above configurations, the engaging member (10) is provided only at a position shifted in the longitudinal direction with respect to the easily deformable portion (17). Characterized by

Although the second edge deforms to bend the most at the position aligned with the easily deformable portion, according to this configuration, the second edge avoids the most deformed portion and engages with the engaging member. , it becomes easier to engage the second edge with the engaging member.

An embodiment of the present invention is characterized in that one of the engaging members (10) is provided at a position aligned with the easily deformable portion (17) instead of the configuration directly above.

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

An embodiment of the present invention comprises a pad (5) having a suspension groove (9) and spaced apart from each other along the length of said suspension groove (9) at the bottom of said suspension groove (9). and a plurality of engaging members (10) fixed to the pad (5) and extending in the longitudinal direction in the suspension groove (9) to form a convex or concave curved profile. a skin material (6) covering the surface of said pad (5), comprising a hanging edge (11) defining said hanging edge (11), and for locking said hanging edge (11) to said engagement member (10) , a first edge (12) connected to said hanging edge (11) and a second edge (13) engaging said engaging member (10), said hanging groove (9) A method for assembling a suspension structure (8) for a seat (1) comprising a suspension member (14) extending longitudinally therein, wherein a deformable portion is provided on said first edge (12). providing (17), and at said first edge (12) and said hanging edge (11), on both sides of said deformable portion (17), said first edge (12) and said providing indicia (18, 19) that are aligned with each other when the hanging edges (11) are connected to each other; and bending the hanging member (14) along the hanging edges (11), aligning the marks (18, 19) of the first edge (12) and the hanging edge (11) with each other; and connecting said second edge (13) to said engaging member (10).

According to this configuration, the presence of the easily deformable portion makes it easier for the suspension member to bend, and the marks arranged on both sides of the easily deformable portion on the first edge are aligned with the marks of the suspension member. As a result, the suspension member has an appropriate shape and is arranged at an appropriate position, which facilitates assembly.

According to the sheet hanging structure of the present invention, the easily deformable portion allows the hanging member to be easily connected to the hanging edge in an appropriate bent state.

According to an embodiment of the present invention, the easily deformable portion can be easily formed by including the notch portion.

According to an embodiment of the present invention, the first edge side is substantially easier to bend and deform than the second edge side, thereby facilitating the connecting operation between the first edge and the hanging edge. .

According to an embodiment of the invention, the markings ensure that the suspension member is properly shaped and positioned.

According to an embodiment of the invention, the folding of the first edge facilitates the connection of the first edge and the hanging edge to each other in the unfolded state.

According to an embodiment of the present invention, since the sewing line avoids the mark formed by the cut, even if the mark is cut, the mutual connection strength between the first edge and the hanging edge is impaired. do not have.

According to an embodiment of the present invention, the engagement member is provided at a position aligned with the mark, so that the hanging edge can be inserted into the proper position of the hanging groove.

According to an embodiment of the present invention, since the engaging member is displaced with respect to the easily deformable portion, the operation of engaging the second edge with the engaging member is facilitated.

According to an 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.

According to the method for assembling the seat hanging structure according to the present invention, the easily deformable portion and the mark allow the hanging member to be easily connected to the hanging edge portion in an appropriate shape and at an appropriate position.

1 is a perspective view showing a vehicle seat according to an embodiment; FIG. Sectional drawing of suspension structure which concerns on embodiment Sectional view orthogonal to the left-right direction of the pad of the seat cushion according to the embodiment (A: left-right center portion, B: portion adjacent to the hanging portion extending in the front-rear direction in the left and right side portions) Explanatory drawing of the suspension procedure of the suspension structure according to the embodiment (A: skin material, B: suspension member) Explanatory drawing of the hanging procedure of the hanging structure according to the embodiment (the state in which the hanging member is sewn on the upholstery material) Explanatory drawing of the hanging procedure of the hanging structure according to the embodiment (the state where the upholstery material is folded back along the sewing line (upper figure) and the pad hanging groove (lower figure))

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a vehicle seat 1 (hereinafter referred to as "seat 1") according to the embodiment. A 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 foamed resin such as urethane foam, and a skin material 6 covering the seating surface side of the pad 5. As shown in FIG. A plurality of linearly recessed hanging portions 7 are formed in the vertical and horizontal directions on the surfaces of the seat cushion 2 and the seat back 3 on the seating surface side by hanging the upholstery material 6 in the pad 5 . there is

FIG. 2 shows a suspension structure 8 for the seat 1 according to the embodiment. The suspension structure 8 includes a pad 5 having a suspension groove 9 and a bottom portion of the suspension groove 9 , which are spaced apart from each other along the longitudinal direction (extending direction) of the suspension groove 9 . a plurality of engaging members 10 fixed to the pad 5; a skin material 6 covering the surface of the pad 5; In order to lock the hanging edge portion 11 to the engaging member 10, a first edge portion 12 connected to the hanging edge portion 11 and a second edge portion 13 (engaged portion) engaged with the engaging member 10. and a hanging member 14 extending in the longitudinal direction of the hanging groove 9 .

The pad 5 is made of foamed resin such as urethane foam. The hanging grooves 9 are open toward the seating surface and extend in the vertical direction (the front-rear direction in the seat cushion 2 and the up-down direction in the seat back 3) and the lateral direction (the left-right direction). direction). The bottom surface of the hanging groove 9 extends substantially on a plane at a constant position in the thickness direction.

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 . An engaging member 10 made of a clip is embedded in the pad 5 when the pad 5 is foamed.

The hanging edge portion 11 of the skin material 6 is formed by bringing the ends of the two skin materials 6 into contact with each other so that the edges of the surfaces of the two skin materials 6 are aligned with each other, and connecting them by sewing or the like. The hanging edge portion 11 may be formed by folding one sheet of the skin material 6 so that the surface side becomes a valley, and connecting the mutually abutting portions by sewing or the like. As shown in FIG. 3, the pad 5 has unevenness on the surface, 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 hanging as shown in FIG. The edge of edge 11 has a convex or concave curved profile.

As shown in FIG. 2, the hanging member 14 is made of a cloth-like member such as non-woven fabric, extends in the longitudinal direction of the hanging groove 9, and is connected to the hanging edge 11 by sewing or the like. It includes an edge portion 12 and a second edge portion 13 made of resin or the like, extending in the longitudinal direction of the hanging groove 9 and connected to the end portion of the first edge portion 12 on the side of the hanging groove 9 . The suspension member 14 extends linearly when no force is applied, but is bendable. The second edge portion 13 bulges out on both sides in the thickness direction of the first edge portion 12 with respect to the first edge portion 12 so as to be engaged with the locking claws 16 of the engaging member 10 . 16 can be engaged. The second edge 13 has a higher bending stiffness than the first edge 12 . That is, the first edge 12 is more prone to bending deformation than the second edge 13 . The second edge 13 is formed by injection molding, and the first edge 12 is connected to the second edge 13 by being mounted in a mold cavity during molding of the second edge 13 . If the first edge portion 12 and the second edge portion 13 are made of the same resin, the hanging member 14 may be formed by extrusion molding. The first edge 12 is folded back along the connecting portion with the hanging edge 11 . As the second edge portion 13, instead of the resin swelling in the thickness direction, the first wire held by the first edge portion 12 and the first wire are extended along the hanging groove 9 and engaged with the first wire. A C-ring may be used, and a second wire with which the C-ring engages may be used instead of the clip as the engaging member 10 (not shown).

As shown in FIG. 4, the first edge portion 12 is provided with an easily deformable portion 17, and the hanging member 14 is easier to bend and deform 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 upholstery material 6 . The notch forming the easily deformable portion 17 has a predetermined length on the edge side of the first edge portion 12 . The easily deformable portion 17 may be configured by a portion thinner than the other portion of the first edge portion 12 instead of the notch. The illustrated deformable portion 17 has a rectangular shape when viewed from the direction perpendicular to the surface of the cloth-like first edge portion 12, but may have other shapes such as a triangle, a circle, and a semicircle. It is preferable that the first edge portion 12 is more easily deformable than the second edge portion even in a portion shifted from the easily deformable portion 17 in the longitudinal direction of the hanging groove 9 . As shown in FIG. 6, it is preferable that the engaging member 10 is 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 aligned with the easily deformable portion 17. As shown in FIG. The easily deformable portion 17 is provided at a position corresponding to a part of the convex or concave curved portion of the hanging edge portion 11 .

As shown in FIG. 6, a plurality of marks 18 are provided on the edge of the first edge portion 12 to which the second edge portion is not attached. At least one mark 18 is provided on each side of the deformable portion 17 . A mark 19 is provided at a position matching the mark 18 on the hanging edge 11 of the upholstery 6 . The marks 18 and 19 are preferably cutouts having shapes that match each other, but they may also be marks written with a pen or the like, which are erased after the hanging edge portion 11 and the first edge portion 12 are connected to each other. good too. At least part of the marks 18 and 19 are provided at positions aligned with the engaging member 10 .

A method of suspending the suspending structure 8 will be described with reference to FIGS. 4 to 6. FIG.

First, as shown in FIG. 4, the worker notches the first edge 12 to provide the deformable portion 17, and the second edge of the first edge 12 of the hanging member 14 is attached. A plurality of markings 18 are provided on the edge of the non-open side. The easily deformable portion 17 is provided at a position corresponding to a part of the convex or concave curved portion of the hanging edge portion 11 . Also, the operator places a mark 19 on the hanging edge 11 of the upholstery 6 at a position corresponding to the mark 18 .

Next, as shown in FIG. 5, the worker aligns the mark 19 of the hanging edge 11 with the mark 18 of the first edge 12 so that the end edge of the hanging edge 11 and the first edge are aligned. The hanging member 14 is bent along the hanging edge 11 so that the edge of the portion 12 opposite to the second edge is aligned with each other to overlap the hanging member 14 on the skin material 6 . The worker sews together the first edge 12 of the hanging member 14 and the hanging edge 11 of the upholstery material 6 which overlap each other. A dashed line in FIG. 5 indicates the sewing line 20 . The sewing line 20 is provided at a position avoiding the marks 18 and 19 formed by notches. The mutual connection between the first edge portion 12 and the hanging edge portion 11 may be performed by means other than sewing, such as adhesion.

Next, as shown in FIG. 6 , the worker moves the skin material 6 along the sewing line 20 along the sewing line 20 so as to move the skin material 6 to the opposite side of the first edge 12 from the second edge 13 . Fold the edge 12 over. The worker inserts the second edge portion 13 into the hanging groove 9 to engage the engaging member 10 .

The effects of the above embodiment will be described.
Since the easily deformable portion 17 is provided, the hanging member 14 can be easily maintained in a bent state along the hanging edge portion 11, and the hanging member 14 and the hanging member 14 having edges bent in a convex or concave shape can be easily formed. Connection with the edge portion 11 is facilitated. In addition, since the marks 18 and 19 are provided on both sides of the easily deformable portion 17, the connection between the hanging member 14 and the hanging edge portion 11 having an end edge curved in a convex or concave shape is facilitated. . Since the hanging member 14 is connected to the hanging edge portion 11 having a convex or concave bent edge, the unevenness of the seating surface of the seat 1 can be easily reproduced as designed.

Since the first edge portion 12 is easier to bend and deform than the second edge portion 13, the connection work such as sewing between the hanging edge portion 11 and the first edge portion 12 is facilitated.

When the hanging edge portion 11 and the first edge portion 12 are connected to each other by sewing, the hanging edge portion 11 and the first edge portion 12 are sewn in an overlapped state so that their edges are aligned. Therefore, it is easier to align the marks 18 and 19 with the hanging member 14 bent than when the hanging edge portion 11 and the first edge portion 12 are connected so that their edges abut each other. Become.

At least part of the marks 18 and 19 are provided at positions aligned with the engaging member 10 , so that the hanging edge 11 can be inserted into the proper position of the hanging groove 9 . Since the sewing line 20 is provided at a position avoiding the marks 18 and 19 formed by notches, the strength of the connection between the hanging edge portion 11 and the first edge portion 12 is not impaired.

The second edge portion 13 deforms so as to bend the most at a position aligned with the easily deformable portion 17 . When the engaging member is provided only at a position shifted in the longitudinal direction of the hanging groove 9 with respect to the easily deformable portion 17, the second edge portion 13 is engaged with the engaging member 10 avoiding the most deformed portion. As a result, it becomes easy to engage the second edge portion 13 with the engaging member 10 . When the engaging member 10 is provided at a position aligned with the easily deformable portion 17, the most bent portion of the hanging edge portion 11 engages with the engaging member 10 via the hanging member 14. The unevenness of the seating surface of 1 is easy to reproduce as designed.

Even if the edge of the hanging end portion has unevenness, one long hanging member can be used without dividing the hanging member, and an increase in the number of parts can be suppressed.

Although the specific embodiments have been described above, the present invention is not limited to the above embodiments and can be widely modified. The present invention can be applied not only to vehicle seats, but also to other vehicle seats and seats placed in houses and the like, as long as the seat includes a pad and a skin material.

1: Sheet 5: Pad 6: Skin Material 8: Suspension Structure 9: Suspension Groove 10: Engagement Member 11: Suspension Edge 12: First Edge 13: Second Edge 14: Suspension Member 17: Easily deformable portion 18: Mark of hanging member 19: Mark of hanging edge 20: Sewing line

Claims (10)

a pad having a hanging groove;
a plurality of engagement members fixed to the pad at the bottom of the suspension groove, spaced apart from each other along the longitudinal direction of the suspension groove;
a skin material including a suspension edge extending in the longitudinal direction in the suspension groove and covering a surface of the pad;
The suspension groove has a first edge connected to the suspension edge and a second edge engaged with the engagement member to lock the suspension edge to the engagement member. a suspension member extending longitudinally within the interior;
an edge of the hanging edge having a convex or concave curved contour;
A structure for suspending a sheet, wherein an easily deformable portion is provided on the side of the first edge portion of the suspending member. 2. The sheet suspension structure according to claim 1, wherein the easily deformable portion includes a cutout portion cut into the first edge portion so as to have a predetermined length in the longitudinal direction. 3. The sheet suspension structure according to claim 1, wherein the suspension member is substantially easier to bend and deform on the first edge side than on the second edge side. 4. A mark according to any one of claims 1 to 3, characterized in that the first edge and the hanging edge are provided on both sides of the easily deformable portion with marks that align with each other. Suspension structure of the seat. The first edge is connected to the hanging edge by sewing along a predetermined sewing line,
An edge of the first edge of the hanging member is aligned with an edge of the hanging edge, and the first edge is folded back at the sewing line. Item 5. A sheet hanging structure according to item 4. the markings of the first edge and the hanging edge comprise notches cut into the first edge and the hanging edge;
6. The seat suspension structure according to claim 5, wherein the sewing line is provided at a position avoiding the mark. The seat suspension structure according to any one of claims 4 to 6, wherein the engagement member is provided at a position aligned with the mark. The seat hanging structure according to any one of claims 1 to 7, wherein the engaging member is provided only at a position shifted in the longitudinal direction with respect to the easily deformable portion. The seat hanging structure according to any one of claims 1 to 7, wherein one of the engaging members is provided at a position aligned with the easily deformable portion. a pad having a hanging groove;
a plurality of engagement members fixed to the pad at the bottom of the suspension groove, spaced apart from each other along the longitudinal direction of the suspension groove;
a skin covering a surface of the pad and including a hanging edge extending longitudinally within the hanging groove to define a convex or concave curved profile;
The suspension groove has a first edge connected to the suspension edge and a second edge engaged with the engagement member to lock the suspension edge to the engagement member. A method for assembling a seat suspension structure comprising:
providing a deformable portion on the first edge;
providing the first edge and the hanging edge with marks on both sides of the deformable portion that are aligned with each other when the first edge and the hanging edge are connected to each other;
bending the hanging member along the hanging edge to align the markings of the first edge and the hanging edge with each other;
connecting the first edge and the hanging edge to each other;
and engaging the second edge with the engaging member.

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