Seat pad assembly

Abstract

To obtain a seat pad assembly that can suppress the generation of abnormal noise between the suspender and the seat pad. [Solution] The back pad assembly 10 includes a back pad 12 having a second groove 22 formed therein and a locking member 40 fixed to the bottom of the second groove 22. The back pad assembly 10 also includes a surface material 14 to which a suspender 34 is fixed and which is attached to the back pad 12 by locking the suspender 34 to the locking member 40 while the suspender 34 is inserted into the second groove 22. A portion of the second groove 22 is a constricted portion 46 in which the width of the second groove 22 is set to be narrower than the other portions of the second groove 22, and a portion of the suspender 34 comes into contact with the constricted portion 46, thereby maintaining the bent state of the suspender 34. The depth of the second groove 22 in the portion corresponding to the constricted portion 46 is set to be deeper than the depth of the second groove 22 in the portion that is not a constricted portion 46.

Description

Technical Field

[0001] The present invention relates to a seat pad assembly.

Background Art

[0002] Patent Document 1 below discloses a seat pad that realizes appropriately hanging a seat cover along a curved portion of a hanging groove formed in the seat pad. The seat pad described in this document has a strip-shaped hanging groove on the pad surface into which the seat cover is hung. Further, the seat pad has clips that are fixed inside the groove of the hanging groove and fasten a linear hanging wire provided along the stitching portion of the seat cover at a plurality of locations in the groove length direction. The hanging groove has a curved portion that curves along the pad surface, and a bulging portion that bulges so as to partially narrow the groove width between the inner peripheral wall and the outer peripheral wall of the curved portion. Then, the bulging portion can make the curve of the hanging wire follow the curve of the curved portion by pressing the hanging wire hanging inside the groove of the curved portion from the inner peripheral side of the curve.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in a configuration provided with a bulging portion (constriction portion) for maintaining the curved shape of a suspender such as a hanging wire, at the location where the constriction portion is provided, the suspender end tilts in the groove width direction. In this state, if the suspender end and the groove bottom of the seat pad rub against each other, abnormal noise may occur.

[0005] In consideration of the above facts, an object of the present invention is to obtain a seat pad assembly capable of suppressing the occurrence of abnormal noise between the suspender and the seat pad. [Means for solving the problem]

[0006] The seat pad assembly of the first embodiment comprises a seat pad that deforms when a load is applied from the occupants of a vehicle, and a seat pad that deforms when a load is applied from the occupants of a vehicle, and a seat pad that is attached to the seat pad by a suspender set to a length corresponding to the groove, and the suspender being locked to the locking member while inserted into the groove, and a surface material that covers the seat pad, wherein a portion of the groove is a constricted portion in which the width of the groove is set to be narrower than the other portion of the groove, and a portion of the suspender comes into contact with the constricted portion so that the suspender is kept in a bent state, and the depth of the groove in the portion corresponding to the constricted portion is set to be deeper than the depth of the groove in the portion that is not a constricted portion.

[0007] In the first embodiment of the seat pad assembly, the suspender, fixed to the surface material, is inserted into a groove formed in the seat pad and locked to a locking member fixed to the bottom of the groove. This attaches the surface material to the seat pad, and the seat pad is covered by the surface material. Here, a portion of the groove is a constricted portion, with a narrower width than the rest of the groove. A portion of the suspender contacts the constricted portion, maintaining the bent state of the suspender. Furthermore, the depth of the groove in the portion corresponding to the constricted portion is set to be deeper than the depth of the groove in the portion that is not constricted. This prevents the suspender from contacting the bottom of the groove in the portion corresponding to the constricted portion. As a result, when the seat pad is deformed, the generation of abnormal noise caused by the suspender contacting the bottom of the groove in the portion corresponding to the constricted portion can be suppressed.

[0008] The seat pad assembly of the second embodiment is the seat pad assembly of the first embodiment, wherein the constricted portion is provided at the longitudinal end of the groove.

[0009] In the second embodiment of the seat pad assembly, the constricted portion is provided at the longitudinal end of the groove. Furthermore, the depth of the groove in the portion corresponding to the constricted portion is set to be deeper than the depth of the groove in the portion that is not constricted. This makes it possible to suppress the generation of abnormal noise caused by the suspender coming into contact with the bottom of the groove near the longitudinal end of the groove. [Effects of the Invention]

[0010] The seat pad assembly according to the present invention has the excellent effect of being able to suppress the generation of abnormal noise between the suspender and the seat pad. [Brief explanation of the drawing]

[0011] [Figure 1] This is a front view of the back pad assembly, seen from the front. [Figure 2] This is a cross-sectional view showing the back pad assembly cut along the line 2-2 shown in Figure 1. [Figure 3] This is a cross-sectional view showing the back pad assembly cut along line 3-3 shown in Figure 1. [Figure 4] This is a cross-sectional view showing the back pad assembly cut along line 4-4 shown in Figure 1. [Modes for carrying out the invention]

[0012] A seat pad assembly according to an embodiment of the present invention will be described with reference to Figures 1 to 4. In the figures, arrow FR indicates the front side of the vehicle seat, arrow UP indicates the upper side of the seat, arrow RH indicates the right side in the seat width direction, and arrow LH indicates the left side in the seat width direction. Furthermore, in the following description, unless otherwise specified, when the front / rear, up / down, and left / right directions are indicated, they refer to the front / rear direction of the seat, the up / down direction of the seat, and the left / right direction in the seat width direction.

[0013] As shown in Figure 1, the seat pad assembly of this embodiment is a back pad assembly 10 that constitutes a part of the seat back of a vehicle seat. The configuration of this embodiment can also be applied to other seat pad assemblies, such as a cushion pad assembly that constitutes a part of the seat cushion of a vehicle seat. The back pad assembly 10 is composed of a back pad 12 and a surface material 14 attached to the back pad 12.

[0014] The back pad 12 is formed in a block shape with a defined form using urethane foam or the like. This back pad 12 is capable of deforming when a load is applied from the vehicle occupants. The back pad 12 comprises a main part 16 that constitutes the central part of the back pad 12 in the left-right direction, and a pair of left and right side parts 18 that constitute the left and right sides of the back pad 12. A first groove 20, which is an open groove on the front side, is formed vertically at the boundary between the main part 16 and the pair of left and right side parts 18. In addition, a second groove 22, which is an open groove on the front side, is formed horizontally in the upper part of the main part 16. The left and right ends of this second groove 22 are connected to the left first groove 20 and the right first groove 20, respectively. Also, when viewed from the front, both sides of the second groove 22 in the left-right direction are curved downwards.

[0015] The outer material 14 is formed by joining pieces of cloth or leather cut to a predetermined shape by sewing or other means. As shown in Figures 1 and 2, the outer material 14 includes a first covering portion 26 that covers the upper part 24 of the main portion 16 relative to the second groove 22, and a second covering portion 30 that covers the lower part 28 of the main portion 16 relative to the second groove 22. The lower end of the first covering portion 26 and the upper end of the second covering portion 30 are joined together by sewing, forming a joint portion 32. A suspender 34, set to a length corresponding to the second groove 22, is fixed to this joint portion 32. The suspender 34 is made of resin material and has an anchor shape when viewed from the longitudinal direction. More specifically, the suspender 34 comprises a base plate portion 36 formed in a plate shape and fixed to the joint portion 32 by sewing or the like, and a pair of locking portions 38 that protrude from the end of the base plate portion 36 opposite to the joint portion 32 to one side and the other side in the thickness direction of the base plate portion 36, respectively.

[0016] As shown in Figure 3, a plurality of locking members 40 (three in this embodiment) are fixed to the bottom portion of the second groove 22. In this embodiment, the three locking members 40 are positioned in the longitudinal center of the second groove 22, at a position offset to the right of the left end of the second groove 22, and at a position offset to the left of the right end of the second groove 22, respectively. More specifically, the locking member 40 comprises an embedded portion 42 fixed in an embedded state in the bottom portion of the second groove 22, and a pair of locking portions 44 that protrude from the embedded portion 42 toward the interior of the second groove 22 and are spaced apart in the width direction of the second groove 22.

[0017] As shown in FIG. 4, the right end, which is the longitudinal end of the second groove 22, is a throttle portion 46 where the width of the second groove 22 is set narrower than the middle portion in the longitudinal direction of the second groove 22 (see FIGS. 2 and 3). This throttle portion 46 is formed by a bulging portion 48 that bulges from the upper portion 24 to the lower portion 28 side with respect to the second groove 22 in the main portion 16. This bulging portion 48 is formed in the range from the middle portion to the bottom in the depth direction of the second groove 22. Also, the depth of the second groove 22 at the portion corresponding to the throttle portion 46 is set deeper than the depth of the second groove 22 at the portion that is not the throttle portion 46 (see FIGS. 2 and 3). In FIG. 4, the bottom of the second groove 22 at the portion that is not the throttle portion 46 (see FIGS. 2 and 3) is shown by a two-dot chain line. Although not shown, the left end, which is the longitudinal end of the second groove 22, is also the throttle portion 46.

[0018] (Operation and Effect of this Embodiment) Next, the operation and effect of this embodiment will be described.

[0019] As shown in FIGS. 1 to 4, in the back pad assembly 10 of this embodiment, with the suspender 34 fixed to the skin material 14 inserted into the second groove 22 formed in the back pad 12, the pair of locking portions 38 of the suspender 34 are locked to the locking portions 44 of the locking member 40 fixed to the bottom portion of the second groove 22. Also, although not shown, with the other suspender fixed to the skin material 14 inserted into the first groove 20 formed in the back pad 12, the other suspender is locked to the locking member fixed to the bottom portion of the first groove 20. Thereby, the skin material 14 is attached to the back pad 12, and the back pad 12 is covered by the skin material 14.

[0020] Here, as shown in FIG. 4, both end portions in the left-right direction of the second groove 22 are constriction portions 46 where the width of the second groove 22 is set to be narrower than that of the middle portion in the left-right direction of the second groove 22. Then, both end portions in the left-right direction of the suspender 34 abut against the bulging portions 48 of the constriction portions 46, so that a state in which both sides in the left-right direction of the suspender 34 are bent into a shape corresponding to the shape of the second groove 22 is maintained.

[0021] Also, the depth of the second groove 22 in the portion corresponding to the constriction portion 46 is set deeper than the depth of the second groove 22 in the portion that is not the constriction portion 46 (see FIGS. 2 and 3). Thereby, it is possible to prevent the suspender 34 from coming into contact with the bottom of the second groove 22 in the portion corresponding to the constriction portion 46. As a result, when the back pad is pressed and deformed, it is possible to suppress the generation of abnormal noise due to the suspender 34 coming into contact with the bottom of the second groove 22 in the portion corresponding to the constriction portion 46. In particular, in the present embodiment, it is possible to suppress the generation of abnormal noise due to the suspender 34 coming into contact with the bottom of the second groove 22 near both end portions in the longitudinal direction of the second groove 22.

[0022] In the present embodiment, an example in which the constriction portions 46 are provided at both end portions in the left-right direction of the second groove 22 has been described, but the present invention is not limited to this. The portion where the constriction portions 46 are provided may be appropriately set in consideration of the shape of the groove into which the suspender 34 is inserted and the like.

[0023] As described above, one embodiment of the present invention has been described. However, the present invention is not limited to the above, and it is needless to say that various modifications can be made and implemented within the scope not departing from the gist of the present invention.

Explanation of Reference Numerals

[0024] 12 Back pad (sheet pad) 14 Skin material 22 Second groove (groove) 34 Suspender 40 Locking member 46 Constriction portion

Claims

1. A groove is formed which has a curved portion when viewed from the opening direction, and a locking member is fixed to the bottom of the groove, and the seat pad deforms when a load is applied from the vehicle occupant, A suspender set to a length corresponding to the groove is fixed, and the suspender is attached to the seat pad by being locked to the locking member while inserted inside the groove, and the seat pad is covered with a surface material, Equipped with, A portion of the groove is a constricted portion in which the width of the groove is set to be narrower than that of the other portion of the groove, and when a part of the suspender comes into contact with the constricted portion, the bent state of the suspender is maintained. A seat pad assembly in which the depth of the groove in the portion corresponding to the constricted portion is set to be deeper than the depth of the groove in the portion that is not the constricted portion.

2. The seat pad assembly according to claim 1, wherein the constricted portion is provided at the longitudinal end of the groove.

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