Vehicle seats

Abstract

To ensure a fine appearance around a hole part for a headrest of a seat cover more surely.SOLUTION: A vehicular seat comprises a seat back 6 and a headrest arranged above a seat of the seat back 6, where a design surface of the seat back 6 is formed of a seat cover 6s made of fabrics and a hole part 20 for inserting a stay member protruding from the headrest into the seat back 6 through a cylindrical headrest support is formed in the seat cover 6s. Thread materials 100 of the seat cover 6s extend along a peripheral edge of the hole part 20, and a pair of dividing parts 31 and 32 dividing both end pars in an extending direction of the thread materials 100 are formed in the hole part 20.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a vehicle seat including a seat back and a headrest disposed on the upper side of the seat of the seat back.

Background Art

[0002] Techniques related to this type of vehicle seat are disclosed in Patent Document 1. In this Patent Document 1, the headrest has a stay member protruding downward from the vehicle, and this stay member is inserted into a cylindrical headrest support provided on the seat back. The seat back has its design surface formed of a fabric seat cover, and a hole for inserting the headrest support is formed in this seat cover. In the above-described configuration, after the headrest support is attached to the seat back through the hole of the seat cover, the stay member of the headrest can be inserted into this headrest support. Further, the headrest support has a head provided on its upper side that is larger in size than the hole, and the hole is hidden by this head.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the aforementioned seat back, the threads of the fabric seat cover extend along the periphery of the hole for inserting the headrest. In this configuration, when inserting the headrest support into the hole, the headrest support may get caught on the threads around the hole. If the threads remain frayed around the hole, this fraying can cause runs in the seat cover around the hole, making it difficult to maintain the appearance of the seat. The present invention was devised in view of the above points, and the problem that the present invention aims to solve is to more reliably ensure the appearance of the area around the headrest hole in the seat cover. [Means for solving the problem]

[0005] As a means to solve the above problems, the vehicle seat of the first invention comprises a seat back and a headrest disposed on the upper side of the seat back. The design surface of the seat back is formed of a fabric seat cover, and the seat cover has a hole formed therein for inserting a stay member protruding from the headrest into the seat back via a cylindrical headrest support. In this type of configuration, it is desirable to ensure a more reliable appearance around the hole for the headrest in the seat cover. Therefore, in the present invention, the thread material of the seat cover is, When viewed from above, it has a roughly polygonal shape. Periphery of the hole Straight section in It extends along the same, roughly polygonal hole corner for , extending in the direction along the straight section thread material Both A pair of dividing sections are formed at the ends. In this invention, by dividing both ends of the thread material around the hole with the dividing sections, the thread material is intentionally made to easily fall off from the periphery of the hole. Therefore, even if the thread material around the hole gets caught on the headrest support when installing the headrest, the caught thread material can be made to fall off from the periphery of the hole, thereby suppressing the occurrence of wire runout around the hole.

[0006] The 1 Vehicle seat invention of The divided section is, A roughly polygonal hole is formed by cutting out the corners of a polygon that is formed by intersecting straight lines along the ends of the straight sections. together In addition, the straight section has a roughly polygonal shape. It is formed to extend away from the center of the hole. In this invention, by forming a divided portion that cuts out around the hole and partially widening the hole, it becomes possible to suppress unintended interference between the seat cover portion around the hole and the headrest support.

[0007] The 2 The vehicle seat of the invention is the first 1 In the vehicle seat of the invention, the periphery of the dividing section has an arc shape. In this invention, by making the periphery of the dividing section arc shape, the opening dimensions of the dividing section become partially enlarged. This makes it easier to adjust the opening dimensions of the dividing section, and in particular, it makes it easier to adjust the opening dimensions of the dividing section while taking into account the external dimensions of the headrest support.

[0008] The 3 The vehicle seat of the invention is the first invention or The 2 In a vehicle seat according to any of the inventions, four divisions are formed at equal intervals with respect to the holes. In this invention, by forming the holes in a balanced manner with respect to the divisions, the thread material around these holes can be more easily and appropriately removed. [Effects of the Invention]

[0009] According to the first invention of the present invention, the appearance around the headrest hole of the seat cover can be more reliably ensured. 1 According to the invention, the appearance around the hole can be more reliably ensured. 2 According to the invention, the appearance around the hole can be more properly ensured. 3 According to the invention, the appearance around the hole can be more reliably ensured. 。 [Brief explanation of the drawing]

[0010] [Figure 1] This is a perspective view showing a vehicle seat partially disassembled. [Figure 2] This is a cross-sectional view of the seatback before the headrest support is inserted. [Figure 3] This is a top view of the hole, showing the arrangement of the thread material around the hole. [Figure 4] This is a top view showing the positional relationship between the headrest support and the hole. [Modes for carrying out the invention]

[0011] Hereinafter, embodiments for carrying out the present invention will be described with reference to Figures 1 to 4. For convenience, arrows indicating the front-to-back, left-to-right (seat width direction), and up-to-down directions of the vehicle seat are appropriately shown in each figure. In Figure 3, for convenience, the thread material around the hole is partially shown, and the spacing between adjacent thread materials is increased to clarify the arrangement of the thread material around the hole.

[0012] [Overview of vehicle seats] Before describing the holes 20 and 21 of the seat cover 6S, let's first describe the overview of the vehicle seat 2 shown in Figure 1. This vehicle seat 2 has a seat cushion 4, a seat back 6, and a headrest 8 as its seat components. These seat components (4, 6, 8) each have a seat frame (4F, 6F, 8F) that forms the seat skeleton, a seat pad (4P, 6P, 8P) that forms the outer shape of the seat, and a seat cover (4S, 6S, 8S) that covers the seat pad. The lower part of the seat back 6 (details to be described later) is connected to the rear of the seat cushion 4 so as to be able to be raised and lowered, and the headrest 8 is positioned above the seat back 6 when it is in the upright position. Here, a right headrest stay 10 and a left headrest stay 11 protrude from the lower surface of the headrest 8 as stay members, and each headrest stay 10, 11 is positioned with an appropriate gap between them on the left and right sides. Then, as will be described later, the left and right headrest stays 10 and 11 are inserted into the upper part of the seat back 6, so that the headrest 8 is positioned above the seat back 6.

[0013] [Seat back] The seat back 6 shown in Fig. 1 is a member that is generally rectangular when viewed from the front and serves as a backrest for the occupant. It has the above-described basic configurations 6F, 6P, 6S and a pair of left and right headrest supports 12, 13. In the seat back 6, a seat pad 6P is disposed on the seat frame 6F, and this seat pad 6P is covered with a fabric seat cover 6S that forms the design surface. Also, on the upper part of the seat back 6, a right headrest support 12 and a left headrest support 13 are inserted. These left and right headrest supports 12(13) are cylindrical members for inserting the corresponding headrest stays 10(11). Each headrest support 12(13) has a large head portion 120(130) that is substantially square when viewed from above at its upper end. And each headrest support 12(13) is assembled to a cylindrical support bracket 14(15) provided on the seat frame 6F in a state of being inserted through corresponding holes 20(21) of the seat cover 6S described later.

[0014] And the headrest supports 12(13) shown in Fig. 1 are inserted through the corresponding holes (the right hole 20 and the left hole 21) of the seat cover 6S as described above. At this time, consideration should be given to ensuring the appearance around the holes. That is, in the seat back 6, the thread material 100 of the fabric seat cover 6S extends along the periphery of the holes 20(21) for the headrest (see Fig. 3). In the above-described configuration, there is a possibility that the headrest supports 12(13) during the insertion operation may catch on the thread material 100 around the holes, causing transmission lines to occur in the seat cover 6S portion around the holes. Therefore, in this embodiment, the appearance around the holes for the headrest of the seat cover 6S is more reliably ensured by the configuration of the holes (the dividing portions 31 to 34) described later. Hereinafter, each configuration of the seat cover �S will be described in detail.

[0015] [Seat Cover, Hole] The seat cover 6S shown in Fig. 1 is a surface material that constitutes the design surface, and is formed of a fabric which is a kind of fabric made of natural fibers or synthetic fibers. This seat cover 6S is formed in a three-dimensional shape that can cover the seat pad 6P, and a pair of left and right holes 20, 21 are provided in the upper surface portion thereof. These left and right holes 20, 21 are formed in a substantially rectangular shape so as to allow the corresponding headrest supports 12, 13 to pass through, and penetrate the seat back 6 in the thickness direction. And the opening dimensions of the left and right holes 20, 21 are adjusted so as to be covered by the substantially rectangular heads 120(130) of the headrest supports 12(13) described later.

[0016] [Arrangement state of yarn materials around the hole] Here, taking the right hole 20 shown in Fig. 3 as an example, the arrangement state of the yarn material 100 around the hole will be described. First, as described above, the seat cover 6S is formed of a fabric, and the yarn material 100 (warp 101, weft 102) of the fabric extends vertically and horizontally while being intertwined with each other. And in the right hole 20, the weft 102 is arranged so as to extend back and forth along the right peripheral edge (right edge 201). Also, the weft 102 is arranged along the left peripheral edge (left edge 203) of the right hole 20. And the warp 101 is arranged so as to extend left and right along the front and rear peripheral edges (front edge 202, rear edge 204) of the right hole 20. Although not shown, the yarn material 100 is arranged in the left hole 21 shown in Fig. 1 in the same arrangement state as the right hole 20.

[0017] [Cutting part] The left and right holes 20 and 21 shown in Figure 1 have generally the same basic structure, and four divisions are formed around their periphery (in Figure 1, for convenience, the divisions of the left and right holes are denoted by the same reference numerals 31 to 34). For example, taking the right hole 20 shown in Figure 3 as an example, these four divisions 31 to 34 are formed at equal intervals around the periphery of the right hole 20 and are located at the four corners of the right hole 20. Specifically, the first division 31 is formed on the right front side of the right hole 20, and the second division 32 is formed on the right rear side of the right hole 20. The third division 33 is formed on the left front side of the right hole 20, and the fourth division 34 is formed on the left rear side of the right hole 20.

[0018] Here, the divisions 31 to 34 shown in Figure 3 have generally the same basic structure except for their formation positions. Therefore, the details will be explained below using the first division 31 on the right front side and the second division 32 on the right rear side as examples. First, the first division 31 is formed by cutting out the right front side of the right hole 20 in a roughly semicircular shape, and the periphery 310 of the first division 31 is formed in an arc shape when viewed from above. The periphery 310 of the first division 31 extends to the right front side away from the center C of the right hole 20, and protrudes outward from the right edge 201 of the right hole 20. As a result, a stepped first step 41 is formed in the area from the right edge 201 of the right hole 20 to the periphery 310 (rear edge portion) of the first division 31.

[0019] Next, the second dividing section 32 on the right rear side, shown in Figure 3, is formed in a roughly semicircular shape, similar to the first dividing section 31 described above, and extends to the right rear side away from the center C of the right-side hole 20. As a result, a stepped second step section 42 is formed in the portion from the right edge 201 of the right-side hole 20 to the peripheral edge 320 (front edge portion) of the second dividing section 32. Then, in the right-side hole 20, a roughly trapezoidal first band-shaped section 51 is formed in the seat cover 6S portion between the first dividing section 31 and the second dividing section 32, extending front to back and surrounded by the first step section 41 and the second step section 42. The warp threads 102 of the seat cover 6S are arranged in this first band-shaped section 51 along the right edge 201 of the right-side hole 20. Furthermore, the front and rear ends of the warp thread 102 (both ends in the direction in which the thread material extends) are separated by the first dividing section 31 and the second dividing section 32.

[0020] Furthermore, in the right-side hole 20 shown in Figure 3, the left-side third division 33 is formed in a roughly semicircular shape, similar to the first division 31 on the right-front side. As a result, a roughly trapezoidal second strip 52 is formed on the seat cover 6S between the first division 31 and the third division 33, extending to the left and right. The warp threads 101 of the seat cover 6S are arranged in the second strip 52 so as to follow the periphery (front edge 202) of the right-side hole 20, and the left and right ends of the warp threads 101 are separated by the first division 31 and the third division 33.

[0021] Furthermore, in the right-side hole 20 shown in Figure 3, the fourth division 34 on the left rear side is also formed in a roughly semicircular shape, so that a roughly trapezoidal third strip 53 extends front to back in the seat cover 6S portion between the third division 33 and the fourth division 34. In the third strip 53 as well, the warp threads 102 of the seat cover 6S are arranged to follow the periphery (left edge 203) of the right-side hole 20, and the front and rear ends of the warp threads 102 are divided by the third division 33 and the fourth division 34. Furthermore, a roughly trapezoidal fourth strip 54 is formed extending left to right in the seat cover 6S portion between the second division 32 and the third division 33. In the fourth strip-shaped section 54, the warp threads 101 of the seat cover 6S are positioned along the periphery (rear edge 204) of the right-side hole 20, and the left and right ends of the warp threads 101 are separated by the second dividing section 32 and the fourth dividing section 34. In this way, the four dividing sections 31 to 34 are arranged in a balanced manner in the right-side hole 20, allowing the warp threads 101 and the vertical threads 102 (thread material 100) around the hole to be appropriately separated.

[0022] [Opening dimensions of the divided section] Referring to Figure 4, the opening dimensions of each division section 31 to 34 can be set considering the external dimensions of the head portion 120 of the right headrest support 12. For example, taking the first division section 31 as an example, by appropriately setting its opening dimensions, the first division section 31 will not protrude from the head portion 120 of the right headrest support 12. That is, by appropriately securing the distance between the periphery of the head portion 120 and the periphery of the first division section 31, when the headrest support 12 is inserted, the first division section 31 will be covered by the head portion 120. Furthermore, since the periphery of the first division section 31 is formed in an arc shape, there are no corners that protrude significantly outward. With such a configuration, it is easy to obtain both the shortest distance L1 from the right edge 121 of the head portion 120 and the shortest distance L2 from the front edge 122 of the head portion 120, making it easy to secure the desired set distance. In particular, when the first dividing portion 31 is formed in a circular shape, its center position C1 can be set based on the shortest distance. Therefore, with the above configuration, when adjusting the opening size of the first dividing portion 31 considering the external dimensions of the head 120 of the right headrest support 12, the adjustment of the opening size becomes easier.

[0023] [Assembly of headrest support to seatback] Referring to Figures 1 to 3, in the seat back 6, the left and right headrest supports 12 and 13 are assembled by inserting them through the holes 20 and 21 of the seat cover 6S. As described above, the thread material 100 of the seat cover 6S extends along the periphery of the holes 20 and 21. In this configuration, the left and right headrest supports 12 and 13 may get caught on the thread material 100 around the holes during insertion, which may cause runs around the holes and make it difficult to maintain the appearance of the seat. Therefore, in this embodiment, as shown in Figure 3, the thread material 100 of the seat cover 6S extends along the periphery of the holes (20, etc.), and a pair of dividing parts (31, 32, etc.) are formed in the holes (20, etc.) that divide both ends in the direction in which the thread material 100 extends. According to the above configuration, by dividing both ends of the thread material 100 around the hole at the dividing sections (31, 32, etc.), the thread material 100 is made more likely to fall out of the hole (20, etc.), thereby ensuring a more reliable appearance of the sheet. The function of the first dividing section 31 and the second dividing section 32 of the right-hand hole 20 will be explained in detail below as an example.

[0024] [The function of the divided section] Referring to Figures 2 and 3, consider the case where the right headrest support 12 gets caught on the right edge 201 of the right hole 20 when inserting the right headrest support 12 into the right hole 20. As described above, at the right edge 201 (first band-shaped portion 51) of the right hole 20, the warp threads 102 of the seat cover 6S are arranged linearly between the first stepped portion 41 and the second stepped portion 42. Furthermore, the front and rear ends of these warp threads 102 are separated by the first dividing portion 31 and the second dividing portion 32. Therefore, even if the warp threads 102 at the right edge 201 of the right hole 20 get caught on the right headrest support 12, these caught warp threads 102 can be released into the inside of the right hole 20. In this way, the snagged warp threads 102 are detached and not left around the hole, making it less likely for snags to occur in the seat cover 6S around the hole, thus contributing to the excellent appearance of the seat. Furthermore, in the right-side hole 20, arc-shaped divisions 31-34 are formed around it, partially widening the right-side hole 20. With the above configuration, even when the first strip-shaped portion 51 is snagged, unintended interference between the rest of the seat cover 6S around the hole and the right-side headrest support 12 can be suppressed. This prevents the seat cover 6S around the hole from being excessively caught when inserting the right-side headrest support 12, and also prevents excessive force from being applied to unintended parts of the seat cover 6S.

[0025] Referring to Figure 2, the right headrest support 12 is assembled to the seat back 6 through the right hole 20, so that the right hole 20 is covered by the head portion 120 of the right headrest support 12. At this time, referring to Figure 4, the edges of each division portion 31-34 in the right hole 20 are arc-shaped, so the opening dimensions can be appropriately adjusted so that each division portion 31-34 is hidden by the head portion 120. Thus, with the above configuration, the occurrence of wire runoff around the right hole 20 is suppressed, and external exposure of each division portion 31-34 is avoided as much as possible, thus contributing to ensuring a superior appearance of the seat. Similarly, the left headrest support 13 shown in Figure 1 is assembled to the seat back 6 through the left hole 21. This allows the headrest 8 to be attached to the upper side of the seat back 6 via the left and right headrest supports 12 and 13.

[0026] As explained above, in this embodiment, the ends of the thread material 100 around the holes are separated by the dividing sections, making it easier for the thread material 100 to fall off from the periphery of the holes 20 and 21. Therefore, even if the thread material 100 around the holes gets caught on the headrest supports 12 and 13 when the headrest 8 is installed, the caught thread material 100 can be made to fall off from the periphery of the holes 20 and 21, thereby suppressing the occurrence of snags around the holes. Thus, according to this embodiment, the appearance around the headrest holes of the seat cover 6S can be more reliably ensured. Furthermore, with the above configuration, the productivity and quality of the seat cover 6S can be more reliably ensured, and the disposal of the seat cover 6S due to snags can be avoided as much as possible, thus suppressing cost increases.

[0027] Furthermore, in this embodiment, by forming the divided portions 31-34 so as to cut out around the holes 20 and 21, the holes 20 and 21 are partially widened, thereby suppressing unintended interference between the seat cover 6S portion around the holes and the headrest supports 12 and 13. Also, in this embodiment, by making the periphery of the divided portions 31-34 arc-shaped, the opening dimensions of the divided portions 31-34 are avoided to become partially larger. This makes it easier to adjust the opening dimensions of the divided portions 31-34, and in particular, when adjusting the opening dimensions of the divided portions 31-34 while considering the external dimensions of the headrest supports 12 and 13, the adjustment of the opening dimensions becomes easier. In addition, in this embodiment, by forming the holes 20 and 21 in a balanced manner with respect to the divided portions 31-34, the thread material 100 around these holes can be more easily and appropriately removed.

[0028] The vehicle seat of this embodiment is not limited to the embodiment described above, and can take various other forms. In this embodiment, the configuration of the hole and the division section is illustrated, but this is not intended to limit the configuration of each of these parts. For example, the hole can be provided with at least one pair of division sections (such as a front-to-back pair or a left-to-right pair), and it can also be provided with five or more division sections. When forming a pair of division sections, their formation positions are appropriately set according to the direction in which the thread material extends around the hole. The hole can be formed in a roughly rectangular shape, as well as a roughly circular, roughly elliptical, or various polygonal shapes. The division section can also be formed in a roughly semicircular shape, as well as a roughly circular, roughly semi-elliptical, roughly elliptical, or various polygonal shapes, and may even be formed with slit-like cuts.

[0029] Furthermore, although this embodiment illustrates a woven seat cover, the configuration of this embodiment can also be applied to a knitted seat cover. For example, in a knitted seat cover, if the thread material extending in the direction of the course is arranged along the periphery of the hole, the thread material can be easily prevented from falling out of the hole by cutting both ends of the thread material at the dividing section. The configuration of the vehicle seat can also be changed as appropriate, and the configuration of this embodiment can be applied to vehicle seats in general, such as those in cars, aircraft, trains, and ships. [Explanation of symbols]

[0030] 2. Vehicle seats 4 seat cushions 6 Seatback 8 headrests 6S Seat Covers 6P Seat Pad 6F Seat Frame 10,11 Headrest stay (Stay member of the present invention) 12,13 Headrest support 120,130 head 14,15 Support bracket 20 Right side hole 21 Left side hole 201 (Right edge of the hole on the right side) 202 (Right-side hole) front edge 203 (Left edge of the hole on the right side) 204 (Post-edge of the hole on the right side) 31. First section 310 Periphery (of the first division) 32 Second Division 320 Periphery (of the second division) 33 Third division 34. Fourth Division 41 First step part 42 Second step part 51 First band-shaped section 52 Second band-shaped area 53 Third band 54 Fourth band 100 thread material 101 Warp threads 102 Warp threads

Claims

1. The seat comprises a seat back and a headrest positioned above the seat of the seat back. In a vehicle seat, the design surface of the seat back is formed by a fabric seat cover, and the seat cover has a hole formed therein for inserting a stay member protruding from the headrest into the seat back via a cylindrical headrest support, The thread material of the seat cover extends along the straight portion of the periphery of the hole, which is substantially polygonal in shape when viewed from above, At the corners of the substantially polygonal hole, a pair of dividing portions are formed to divide both ends of the thread material extending in the direction along the straight portion. The divided portion is formed by cutting out the corners of a polygon formed by intersecting straight lines along the end of the straight portion, thereby forming the substantially polygonal hole, and is formed to extend in a direction away from the center of the substantially polygonal hole relative to the straight portion.

2. The vehicle seat according to claim 1, wherein the periphery of the divided portion has an arc shape.

3. Claim 1 or the claim that the four dividing portions are formed at equal intervals with respect to the hole portion. This is a vehicle seat as described in item 2, paragraph 1.

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