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JP-7855979-B2 - Vehicle seats

JP7855979B2JP 7855979 B2JP7855979 B2JP 7855979B2JP-7855979-B2

Inventors

  • 牛山 剛志

Assignees

  • トヨタ紡織株式会社

Dates

Publication Date
20260511
Application Date
20220921

Claims (3)

  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, wherein the four dividing portions are formed at equal intervals with respect to the hole. This is a vehicle seat as described in item 2, paragraph 1.

Description

This invention relates to a vehicle seat comprising a seat back and a headrest disposed on the upper side of the seat back. Technology related to this type of vehicle seat is disclosed in Patent Document 1. In Patent Document 1, the headrest has a stay member that protrudes downwards from the vehicle, and this stay member is inserted into a cylindrical headrest support provided on the seat back. The seat back is constructed of a fabric seat cover, and a hole is formed in this seat cover for inserting the headrest support. In this configuration, after attaching the headrest support to the seat back through the hole in the seat cover, the stay member of the headrest can be inserted into the headrest support. Furthermore, the head portion of the headrest support is larger than the hole, and this portion conceals the hole. Patent No. 5570859 This is a perspective view showing a vehicle seat partially disassembled.This is a cross-sectional view of the seatback before the headrest support is inserted.This is a top view of the hole, showing the arrangement of the thread material around the hole.This is a top view showing the positional relationship between the headrest support and the hole. The embodiments for carrying out the present invention will be described below 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. [Overview of vehicle seats] Before describing the holes 20 and 21 of the seat cover 6S, let's first describe the general outline 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. On the lower surface of the headrest 8, a right headrest stay 10 and a left headrest stay 11 protrude as stay members, and each headrest stay 10 and 11 are arranged 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. [Seat back] The seat back 6 shown in Figure 1 is a roughly rectangular member in a front view that serves as the backrest for the occupant, and has the basic components 6F, 6P, and 6S described above, as well as a pair of left and right headrest supports 12 and 13. On the seat back 6, a seat pad 6P is placed on the seat frame 6F, and this seat pad 6P is covered with a fabric seat cover 6S that forms the design surface. The right headrest support 12 and the left headrest support 13 are inserted into the upper part of the seat back 6. These left and right headrest supports 12 (13) are cylindrical members into which the corresponding headrest stays 10 (11) are inserted. Each headrest support 12 (13) also has a large head portion 120 (130) at its upper end, which is roughly rectangular in shape when viewed from above. Each headrest support 12 (13) is then inserted through the corresponding hole 20 (21) of the seat cover 6S, which will be described later, and assembled to a cylindrical support bracket 14 (15) provided on the seat frame 6F. As shown in Figure 1, the headrest support 12 (13) is inserted through the corresponding holes (right-side hole 20, left-side hole 21) of the seat cover 6S, as described above. At this time, care should be taken to ensure a neat appearance around the holes. Specifically, on the seat back 6, the thread material 100 of the fabric seat cover 6S extends along the periphery of the headrest holes 20 (21) (see Figure 3). In the above configuration, there is a risk of snagging the headrest support 12 (13) on the thread material 100 around the holes during insertion, potentially causing a run in the seat cover 6S around these holes. Therefore, in this embodiment, the configuration of the holes (divided sections 31-34), described later, is used to more reliably ensure a neat appearance around the headrest holes of the seat cover 6S. The various components of the seat cover 6S are described in detail below. [Seat cover, perforated area] The seat cover 6S shown in Figure 1 is a surface material that constitutes the design surface and is made of a woven fabric, which is a type of