Seat pads, seat pad assemblies, and vehicle seats

Abstract

To make it possible that a locking tool provided on a trim side locks to a hanging member in a configuration in which the hanging member is not arranged on a lower side of a groove in a seat pad.SOLUTION: A cushion pad 20 includes: a main portion 24 that configures a central portion in a seat width direction and supports the buttocks or back of a seated occupant; and side portions 26 that configure both side portions in the seat width direction and protrude toward the seated occupant side with respect to the main portion. Further, the cushion pad 20 includes: a hanging groove 46 that is open on the seated occupant side and is closed in a side opposite to the seated occupant; and a hanging wire 48 that is partially embedded inside the main portion 24 and the side portion 26 and is partially exposed inside the hanging groove 46 to form a hanging portion 49.SELECTED DRAWING: Figure 2

Description

Technical Field

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

Background Art

[0002] Patent Document 1 listed below discloses a vehicle seat including a seat pad and a trim (seat cover) attached to the seat pad. The seat pad described in this document includes a main portion (seating portion) and a side portion (side support portion). In addition, a groove (hanging groove) that is open on the upper side is formed at the boundary between the main portion and the side portion of the seat pad. Further, a hanging member is embedded below the groove in the seat pad. The trim is attached to the seat pad in a state where a locking tool provided on the trim side is locked to the hanging member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of Invention

Problems to be Solved by the Invention

[0004] By the way, due to space constraints under the seat cushion and the like, if the thickness of the seat pad is reduced, it is conceivable that the hanging member cannot be disposed below the groove in the seat pad, and the configuration described in the above Patent Document 1 does not take this point into consideration.

[0005] In consideration of the above facts, the present invention has an object to obtain a seat pad, a seat pad assembly, and a vehicle seat that can lock a locking tool provided on the trim side to a hanging member in a configuration where the hanging member is not disposed below the groove in the seat pad.

Means for Solving the Problems

[0006] The seat pad of the first embodiment comprises a main portion that constitutes the central part in the width direction of the seat and supports the buttocks or back of the seated occupant, side portions that constitute both sides in the width direction of the seat and protrude toward the seated occupant from the main portion, a groove that is open toward the seated occupant and closed toward the opposite side of the seated occupant, and a suspension member which is a suspension portion that is partially embedded inside at least one of the main portion and the side portion and the other part exposed inside the groove.

[0007] In the first embodiment of the seat pad, a portion of the suspension member is embedded inside at least one of the main portion and the side portion. Another portion of the suspension member is an exposed suspension portion inside the groove. In this configuration, the trim can be attached to the seat pad with a locking device fixed to the trim locked to the suspension portion of the suspension member. Thus, in the first embodiment of the seat pad, even in a configuration where the suspension member is not located on the lower side of the groove in the seat pad, a locking device provided on the trim side can be locked to the suspension member.

[0008] The seat pad of the second embodiment is the seat pad of the first embodiment, wherein the groove is formed between the main portion and the side portion, and the suspension member comprises a main portion internal arrangement portion embedded inside the main portion, a side portion internal arrangement portion embedded inside the side portion, and a connecting portion that connects the main portion internal arrangement portion and the side portion internal arrangement portion and has the suspension portion.

[0009] According to the second embodiment of the seat pad, the load applied from the locking device to the suspension portion of the connection is transmitted to the main portion and the side portion via the internal placement portion of the main portion and the internal placement portion of the side portion. As a result, the load applied from the locking device can be supported by the portion of the main portion where the internal placement portion of the main portion is embedded and by the portion of the side portion where the internal placement portion of the side portion is embedded.

[0010] The third embodiment of the seat pad assembly comprises a seat pad according to the first or second embodiment, a trim covering the seat pad, and a locking device fixed to the trim, wherein the locking device is locked to the suspension portion inside the groove.

[0011] The third embodiment of the seat pad assembly comprises a seat pad according to the first or second embodiment. This allows the locking device provided on the trim side to be locked to the suspension member in a configuration where the suspension member is not positioned below the groove in the seat pad.

[0012] A vehicle seat of the fourth embodiment comprises a seat cushion that supports the buttocks of a seated occupant from below and a seat back that supports the back of a seated occupant from the rear, wherein at least one of the seat cushion and the seat back includes a seat pad assembly of the third embodiment.

[0013] According to the fourth embodiment of the vehicle seat, at least one of the seat cushion and the seat back is configured to include the seat pad assembly of the third embodiment. This allows the fastener provided on the trim side to be locked to the suspension member in a configuration where the suspension member is not located below the groove in the seat pad. [Effects of the Invention]

[0014] The seat pad, seat pad assembly, and vehicle seat according to the present invention have the excellent effect that, in a configuration in which the suspension member is not positioned below the groove in the seat pad, a locking device provided on the trim side can be locked to the suspension member. [Brief explanation of the drawing]

[0015] [Figure 1] This is a schematic front view of a vehicle seat. [Figure 2] This is a cross-sectional view showing the right half of the cushion pad assembly, cut along the vertical and horizontal directions. [Figure 3]It is a plan view of the right half of the cushion pad viewed from the upper side. [Mode for Carrying Out the Invention]

[0016] A vehicle seat 10 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. Note that arrows FR, UP, RH, and LH shown in the drawings respectively indicate the front side, upper side, right side, and left side of the seat as viewed from an occupant seated on the vehicle seat 10. Hereinafter, when descriptions are made simply using the front-rear, up-down, and left-right directions, the front-rear in the seat front-rear direction, the up-down in the seat up-down direction, and the left-right in the seat left-right direction are indicated unless otherwise specified. In addition, the seat left-right direction coincides with the seat width direction.

[0017] As shown in FIG. 1, the vehicle seat 10 of the present embodiment includes a seat cushion 12 that supports the buttocks of a seated occupant from the lower side, a seat back 14 that supports the back of the seated occupant from the rear side, and a headrest 16 that supports the head of the seated occupant from the rear side.

[0018] The seat cushion 12 has a configuration in which a cushion pad assembly 18 as a seat pad assembly is attached to a cushion frame (not shown) that constitutes the skeleton of the seat cushion 12.

[0019] The cushion pad assembly 18 is configured to include a cushion pad 20 as a seat pad formed into a predetermined shape using urethane foam or the like, and a cushion trim 22 as a trim attached to the cushion pad 20.

[0020] The cushion pad 20 includes a main portion 24 constituting a central portion in the seat width direction, and a pair of left and right side portions 26 constituting both side portions in the seat width direction.

[0021] The cushion trim 22 includes a first covering portion 28 that covers the main portion 24 of the cushion pad 20, and a pair of left and right second covering portions 30 that respectively cover a pair of left and right side portions 26 of the cushion pad 20.

[0022] The seat back 14 has a configuration in which a back pad assembly 32 as a seat pad assembly is attached to a back frame (not shown) that constitutes the skeleton of the seat back 14.

[0023] The back pad assembly 32 is configured to include a back pad 34 as a seat pad formed into a defined shape using urethane foam or the like, and a back trim 36 as a trim attached to the back pad 34.

[0024] The back pad 34 includes a main portion 38 that constitutes the central portion in the seat width direction, and a pair of left and right side portions 40 that constitute both side portions in the seat width direction.

[0025] The back trim 36 includes a first covering portion 42 that covers the main portion 38 of the back pad 34, and a pair of left and right second covering portions 44 that respectively cover a pair of left and right side portions 40 of the back pad 34.

[0026] Next, the detailed configuration of the cushion pad assembly 18 will be described.

[0027] Figure 2 shows a cross-section of the right half of the cushion pad assembly 18 cut along the vertical direction and the left-right direction. Here, the cushion pad assembly 18 has a symmetrical configuration in the left-right direction. Therefore, in the following, the configuration on the right side of the cushion pad assembly 18 will be described, and the description of the configuration on the left side of the cushion pad assembly 18 will be omitted.

[0028] As shown in Figure 2, a suspension groove 46 is formed between the main portion 24 and the side portion 26 of the cushion pad 20, with the upper side facing the seated occupant being open and the lower side facing the opposite side being closed. For example, the suspension groove 46 is formed continuously in the front-rear direction from the front end to the rear end of the cushion pad 20. The suspension groove 46 also comprises a pair of left and right side portions 46A that constitute the left-right walls of the suspension groove 46, and a bottom portion 46B that constitutes the bottom surface of the suspension groove 46.

[0029] As shown in Figures 2 and 3, the cushion pad 20 is provided with a suspension wire 48 as a suspension member. As shown in Figure 3, the suspension wire 48 is shaped to bend alternately in the left-right direction from the front to the rear.

[0030] More specifically, the suspension wire 48 includes a first side section internal placement section 48A, which is embedded in the front end of the side section 26. This first side section internal placement section 48A extends in the front-rear direction.

[0031] Furthermore, the suspension wire 48 is equipped with a first connecting portion 48B, which is a connecting portion that bends and extends inward in the sheet width direction from the rear end of the first side portion internal arrangement portion 48A. This first connecting portion 48B extends in the left-right direction and connects the first side portion internal arrangement portion 48A and the first main portion internal arrangement portion 48C, which will be described later, in the left-right direction. In addition, both left-right portions of the first connecting portion 48B are embedded in the side portion 26 and the main portion 24, respectively. Furthermore, a portion of the first connecting portion 48B is a suspension portion 49 that is exposed inside the suspension groove 46. This suspension portion 49 is located above the bottom surface portion 46B of the suspension groove 46. In addition, this suspension portion 49 traverses the pair of side portions 46B of the suspension groove 46 in the left-right direction.

[0032] Furthermore, the suspension wire 48 includes a first main section internal arrangement portion 48C, which is a main section internal arrangement portion that bends and extends rearward from the inner end in the sheet width direction at the first connection portion 48B. This first main section internal arrangement portion 48C extends in the front-rear direction and is embedded in the main section 24.

[0033] Furthermore, the suspension wire 48 is equipped with a second connecting portion 48D, which is a connecting portion that bends and extends outward in the sheet width direction from the rear end of the first main section internal arrangement portion 48C. This second connecting portion 48D extends in the left-right direction and connects the first main section internal arrangement portion 48C and the second side section internal arrangement portion 48E, which will be described later, in the left-right direction. In addition, both left-right portions of the second connecting portion 48D are embedded in the side portion 26 and the main portion 24, respectively. Furthermore, a portion of the second connecting portion 48D is a suspension portion 49 that is exposed inside the suspension groove 46. This suspension portion 49 is located above the bottom surface portion 46B of the suspension groove 46. In addition, this suspension portion 49 traverses the pair of side portions 46B of the suspension groove 46 in the left-right direction.

[0034] Furthermore, the suspension wire 48 includes a second side section internal arrangement portion 48E, which is a side section internal arrangement portion that bends and extends rearward from the outer end in the sheet width direction at the second connection portion 48D. This second side section internal arrangement portion 48E extends in the front-rear direction and is embedded in the side portion 26.

[0035] Furthermore, the suspension wire 48 is equipped with a third connecting portion 48F, which is a connecting portion that bends and extends inward in the sheet width direction from the rear end of the second side portion internal arrangement portion 48E. This third connecting portion 48F extends in the left-right direction and connects the second side portion internal arrangement portion 48E and the second main portion internal arrangement portion 48G, which will be described later, in the left-right direction. In addition, both left-right portions of the third connecting portion 48F are embedded in the side portion 26 and the main portion 24, respectively. Furthermore, a portion of the third connecting portion 48F is a suspension portion 49 that is exposed inside the suspension groove 46. This suspension portion 49 is located above the bottom surface portion 46B of the suspension groove 46. In addition, this suspension portion 49 traverses the pair of side portions 46B of the suspension groove 46 in the left-right direction.

[0036] Furthermore, the suspension wire 48 includes a second main section internal arrangement portion 48G, which is a main section internal arrangement portion that bends and extends rearward from the inner end in the sheet width direction at the third connection portion 48F. This second main section internal arrangement portion 48G extends in the front-rear direction and is embedded in the rear end of the main section 24.

[0037] As shown in Figure 2, the first covering portion 28 that covers the main portion 24 and the second covering portion 30 that covers the side portion 26 are joined together, for example, by sewing. Three hog rings 52 are fixed to the joint 50 between the first covering portion 28 and the second covering portion 30 as fasteners. These three hog rings 52 are spaced apart in the front-rear direction. As shown in Figures 2 and 3, the cushion trim 22 is attached to the cushion pad 20 with the three hog rings 52 locked to the suspension portion 49 of the first connection portion 48B, the suspension portion 49 of the second connection portion 48D, and the suspension portion 49 of the third connection portion 48F, respectively.

[0038] (Operation and effects of this embodiment) Next, the operation and effects of this embodiment will be described.

[0039] In the vehicle seat 10 of this embodiment described above, most of the suspension wire 48 is embedded inside the cushion pad 20. Furthermore, the suspension portion 49 of the first connection portion 48B, the suspension portion 49 of the second connection portion 48D, and the suspension portion 49 of the third connection portion 48F of the suspension wire 48 are exposed inside the suspension groove 46. As a result, the cushion trim 22 can be attached to the cushion pad 20 with the three hog rings 52 locked to the suspension portion 49 of the first connection portion 48B, the suspension portion 49 of the second connection portion 48D, and the suspension portion 49 of the third connection portion 48F, respectively. Thus, in this embodiment, even in a configuration where the suspension wire 48 is not located on the lower side of the suspension groove 46 in the cushion pad 20, the hog rings 52 provided on the cushion trim 22 side can be locked to the suspension wire 48.

[0040] Furthermore, in this embodiment, the loads input from the three hog rings 52 to the suspension parts 49 of the first connection part 48B, the suspension parts 49 of the second connection part 48D, and the suspension parts 49 of the third connection part 48F are transmitted to the main part 24 and the side part 26 via the internal arrangement parts of the main part (first internal arrangement part 48C, second internal arrangement part 48G) and the internal arrangement parts of the side part (first internal arrangement part 48A, second internal arrangement part 48E). As a result, the loads input from the hog rings 52 can be received by the parts of the main part 24 in which the internal arrangement parts of the main part are embedded and by the parts of the side part 26 in which the internal arrangement parts of the side part are embedded.

[0041] In this embodiment, an example has been described in which the suspension wire 48 is configured to have a first side section internal arrangement section 48A, a first connection section 48B, a first main section internal arrangement section 48C, a second connection section 48D, a second side section internal arrangement section 48E, a third connection section 48F, and a second main section internal arrangement section 48G. However, the present invention is not limited thereto. The configuration of the suspension wire 48 can be appropriately set considering the position in the cushion pad 20 where the suspension groove 46 is provided.

[0042] Furthermore, although this embodiment describes an example in which the configuration of the present invention is applied to the cushion pad assembly 18 side, the configuration of the present invention can also be applied to the back pad assembly 32 side.

[0043] Although one embodiment of the present invention has been described above, it goes without saying that the present invention is not limited to the above, and can be implemented in various other ways without departing from the spirit of the invention. [Explanation of symbols]

[0044] 10 Vehicle seats 12 seat cushions 14 Seatback 18. Cushion pad assembly (seat pad assembly) 20 Cushion pads (seat pads) 22 Cushion trim (trim) 24 Main section 26 Side section 32 Back pad assembly (seat pad assembly) 34 Back pad (seat pad) 36. Back trim (trim) 38 Main section 40 Side section 46. ​​Suspension groove (groove) 48. Suspension wire (suspension component) 48A First side section internal arrangement (side section internal arrangement) 48B First connection section (connection section) 48C 1st Main Section Internal Arrangement Section (Main Section Internal Arrangement Section) 48D Second connection section (connection section) 48E Second side section internal arrangement (side section internal arrangement) 48F Third connection point (connection point) 48G Second Main Unit Internal Arrangement Section (Main Unit Internal Arrangement Section) 49. Suspension section 52 Hog rings (locking devices)

Claims

1. The main part forms the central part in the width direction of the seat and supports the buttocks or back of the seated occupant, Side portions that form both sides in the width direction of the seat and protrude toward the seated occupant relative to the main portion, A groove that is open on the side of the seated occupant and closed on the side opposite the seated occupant, A suspension member having a portion embedded inside at least one of the main portion and the side portion, and another portion exposed inside the groove, Equipped with, A portion of the suspension member is offset in the sheet width direction relative to the groove within the depth range of the groove. The groove is formed between the main portion and the side portion, The suspension member is a seat pad comprising a main section internal arrangement portion embedded inside the main section, a side section internal arrangement portion embedded inside the side section, and a connecting portion that connects the main section internal arrangement portion and the side section internal arrangement portion and also has the suspension portion.

2. The seat pad according to claim 1, The trim covering the aforementioned seat pad, A locking device fixed to the trim, Equipped with, A seat pad assembly in which the locking device is locked to the suspension portion inside the groove.

3. A seat cushion that supports the seated occupant's buttocks from below, A seatback that supports the back of the seated occupant from the rear, Equipped with, A vehicle seat comprising at least one of the seat cushion and the seat back, which includes the seat pad assembly described in claim 2.

4. The seat pad according to claim 1, wherein the suspension member has, in order from the front to the rear, a first side section internal arrangement part embedded in the side section, a first main section internal arrangement part embedded in the main section, a second side section internal arrangement part embedded in the side section, and a second main section internal arrangement part embedded in the main section, and further has a first connecting part that connects the first side section internal arrangement part and the first main section internal arrangement part and has the suspension part, a second connecting part that connects the first main section internal arrangement part and the second side section internal arrangement part and has the suspension part, and a third connecting part that connects the second side section internal arrangement part and the second main section internal arrangement part and has the suspension part.

5. The seat pad according to claim 4, wherein the first connecting portion, the second connecting portion, and the third connecting portion are arranged in a direction perpendicular to the longitudinal direction of the groove.

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