Vehicle seats

Abstract

To provide a vehicle seat that can suppress deformation of the pillar cover. [Solution] The vehicle seat 10 comprises a seat back frame 300, a headrest pillar 400, a pillar cover 430, and a cover support 321. The cover support 321 is a separate component from the headrest pillar 400. The headrest pillar 400 is supported by the seat back frame 300. The pillar cover 430 covers the headrest pillar 400 from the outside. The pillar cover 430 is supported by the headrest pillar 400 and engages with the cover support 321.

Description

Technical Field

[0001] The present disclosure relates to a vehicle seat mounted on a vehicle.

Background Art

[0002] The vehicle seat includes a headrest that supports the head of an occupant. The headrest is attached to the seat back via a headrest pillar. US Patent No. 10427575 discloses a configuration in which a headrest pillar supported by a seat back frame is covered with a pillar cover.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] It is assumed that a large load is applied to the headrest from the head or the like of an occupant. In such a situation occurring in the above configuration, there is a concern that the pillar cover may be greatly deformed.

[0005] The present disclosure aims to solve the above-described problems.

Means for Solving the Problems

[0006] An aspect of the present disclosure is a vehicle seat mounted on a vehicle, including a seat back frame, a headrest pillar supported by the seat back frame, a pillar cover that covers the headrest pillar from the outside and is supported by the headrest pillar, and a cover support body that is a separate member from the headrest pillar and with which the pillar cover engages.

Effects of the Invention

[0007] According to this disclosure, the pillar cover is firmly supported by the cover support because it engages with the cover support. Therefore, deformation of the pillar cover can be suppressed. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a schematic front perspective view of a vehicle seat according to the present disclosure, viewed from the left front. [Figure 2] Figure 2 is a partially abbreviated rear perspective view of a vehicle seat, seen from the left rear. [Figure 3] Figure 3 is a partial cross-sectional side view of the pillar cover and surrounding area of ​​a vehicle seat. [Figure 4] Figure 4 is an exploded perspective view showing the main parts of the pillar cover after it has been disassembled. [Figure 5] Figure 5 is a schematic perspective view of the main parts showing the outer part of the headrest pillar of a vehicle seat covered with a pillar cover. [Figure 6] Figure 6 is an enlarged cross-sectional view of a key part showing the engagement point between the cover support of a vehicle seat and the pillar cover. [Figure 7] Figure 7 is an enlarged cross-sectional view of the main part when the tab portion of the front cover member of the pillar cover and the engaging recess of the rear cover member are engaged. [Figure 8] Figure 8 is a schematic bottom view showing the positional relationship between the engaging claws of the pillar cover and the headrest pillar in the front-to-rear direction of the seat. [Figure 9] Figure 9 is a schematic side view showing the positional relationship between the engaging claw and the airbag module in the seat-forward direction. [Figure 10] Figure 10 is a schematic rear perspective view showing the front cover member assembled to the headrest pillar. [Figure 11] Figure 11 is a schematic rear perspective view showing how the rear cover member is attached to the front cover member after the display has been mounted to the seat back. [Modes for carrying out the invention]

[0009] In the following explanation, "front" and "rear" refer to the relative position in the front-to-back direction of the seat. "Left" and "right" refer to the relative position in the width direction of the seat. Note that the "front-to-back direction of the seat" is the same direction as the front-to-back direction of the vehicle (e.g., a four-wheeled vehicle), and the "width direction of the seat" is the same direction as the left-to-right direction of the vehicle. "Up" and "down" refer to the relative position in the vertical direction.

[0010] Figure 1 is a schematic front perspective view of the vehicle seat 10 according to this embodiment, viewed from the left front. In the illustrated example, the vehicle seat 10 constitutes the left seat of a four-wheeled vehicle (not shown). If the four-wheeled vehicle is a so-called right-hand drive vehicle, the vehicle seat 10 is, for example, a passenger seat. If the four-wheeled vehicle is a so-called left-hand drive vehicle, the vehicle seat 10 is, for example, a driver's seat. Note that the vehicle seat 10 is not limited to an automobile seat installed in a four-wheeled vehicle. The vehicle seat 10 may be an aircraft seat, a railway vehicle seat, or a ship seat.

[0011] The vehicle seat 10 comprises a seat cushion 20, a seat back 30, and a headrest 40. The seat cushion 20 supports the buttocks of an occupant (not shown). The seat cushion 20 has cushion frames 22L and 22R. The cushion frames 22L and 22R are movably supported by seat rails S1 and S2 provided on the floor FL of a four-wheeled vehicle. The vehicle seat 10 moves along the seat rails S1 and S2 in the front-rear direction based on the occupant's operation.

[0012] The seatback 30 supports the occupant's back. As shown in Figure 2, a display 50 is provided on the rear surface of the seatback 30. The display 50 is, for example, a monitor that constitutes a car navigation system and displays a map. The display 50 may also be a monitor that displays video input from an external source. The display 50 is mounted on the bracket 52 shown in Figure 4.

[0013] As shown in FIG. 1, the vehicle seat 10 includes an airbag module 60. The airbag module 60 is supported on the left side portion of a frame body 302 that constitutes a seat back frame 300. The airbag module 60 has a casing 62 and an airbag 64. The airbag 64 is housed in the casing 62 in an initial state and expands as indicated by a phantom line in FIG. 2 when an unexpected situation occurs. When the vehicle seat 10 is a right seat of a four-wheel vehicle, the airbag module 60 is provided on the right side portion of the seat back 30.

[0014] The headrest 40 supports the head of an occupant. As understood from FIG. 3, the headrest 40 is supported by a headrest pillar 400. As shown in FIG. 4, the headrest pillar 400 is attached to the seat back frame 300. This configuration will be described. Hereinafter, the vertical and front-rear positional relationships of the seat back 30, the headrest 40, the headrest pillar 400, and their components are described based on a state where the seat back 30 is not inclined in the front-rear direction (reclining angle is 0°) with respect to the seat cushion 20 as shown in FIG. 1. The state where the seat back 30 is not inclined in the front-rear direction means a state where the headrest 40 is disposed substantially vertically upward with respect to the seat back 30.

[0015] As shown in FIG. 1, the seat back 30 has a seat back frame 300. The seat back frame 300 has a substantially inverted U shape. Specifically, the seat back frame 300 has a pair of left and right frame bodies 302 and a connecting frame 304 that connects the upper portions of the pair of frame bodies 302. The material of the frame body 302 and the connecting frame 304 is, for example, a metal material.

[0016] As can be understood from FIGS. 4 and 5, the headrest pillar 400 has a substantially inverted U shape. Specifically, the headrest pillar 400 has two leg portions 402 and a pillar upper portion 410 (see FIG. 4). Hereinafter, the leg portion 402 located on the left side in the seat width direction is referred to as the left leg portion 402L, and the leg portion 402 located on the right side in the seat width direction is referred to as the right leg portion 402R. The pillar upper portion 410 extends in the seat width direction and connects the left leg portion 402L and the right leg portion 402R. The left leg portion 402L extends downward from the left end of the pillar upper portion 410. The right leg portion 402R extends downward from the right end of the pillar upper portion 410. Each of the left leg portion 402L and the right leg portion 402R is bent at a plurality of locations. As a result, as shown in FIG. 5, the left leg portion 402L has a first left extension portion 404L that extends from the rear to the front, and a second left extension portion 406L that extends downward from the front end of the first left extension portion 404L. Similarly, the right leg portion 402R has a first right extension portion 404R that extends from the rear to the front, and a second right extension portion 406R that extends downward from the front end of the first right extension portion 404R.

[0017] As shown in FIG. 1, the second left extension portion 406L and the second right extension portion 406R are joined to the connecting frame 304. The joining is made, for example, by welding. The joining may also be mechanical joining such as screwing. Based on such joining, a state in which the headrest pillar 400 is attached to the seat back frame 300 is formed. Hereinafter, this state is referred to as the "pillar attachment state".

[0018] In the pillar attachment state, the foremost portions of the second left extension portion 406L and the second right extension portion 406R are the portions located most forward in the headrest pillar 400. In other words, the second left extension portion 406L and the second right extension portion 406R are the front ends of the headrest pillar 400 attached to the seat back frame 300.

[0019] As shown in FIG. 4, a first connection bracket 412 is provided on each of the left leg portion 402L and the right leg portion 402R. However, the first connection bracket 412 is omitted in FIG. 1.

[0020] The material of the headrest pillar 400 is, for example, metal. Also, as shown in Figure 1, the vehicle seat 10 is used with the headrest pillar 400 covered by the pillar cover 430. This prevents the headrest pillar 400 from being visible to the occupant when the vehicle seat 10 is in use.

[0021] As shown in Figures 3 and 5, a pillar-side stay 414 is provided at the front of the upper part 410 of the headrest pillar 400. A headrest-side stay (not shown) faces the front of the pillar-side stay 414. The pillar-side stay 414 and the headrest-side stay are connected to each other via support bolts 418 and nuts 419 shown in Figure 3. In this way, the headrest 40 is supported by the headrest pillar 400.

[0022] As shown in Figure 4, a box body 310 is attached to the upper part of the frame body 302. The upper part of the box body 310 is covered with a thin cover plate 320. That is, the cover plate 320 is supported by the seat back frame 300 via the box body 310. The material of the box body 310 and the cover plate 320 may be metal, but it may also be resin. If resin is used as the material, the weight of the vehicle seat 10 can be reduced.

[0023] The box body 310 has two second connecting brackets 312. The two second connecting brackets 312 are spaced apart from each other at a predetermined distance in the seat width direction. The two first connecting brackets 412 and the two second connecting brackets 312, which are provided on the headrest pillar 400, are connected to each other via fixing bolts 314. In this way, the headrest pillar 400 is supported by the box body 310.

[0024] In one embodiment, the cover plate 320 is a cover support 321 that supports the pillar cover 430. This will be described later. The cover plate 320 has two engagement holes 322. The two engagement holes 322 are located on the upper part of the cover plate 320. The two engagement holes 322 are spaced apart at a predetermined interval in the sheet width direction. As shown in Figure 4, in the pillar mounting state, the two engagement holes 322 are located between the left leg portion 402L and the right leg portion 402R in the sheet width direction.

[0025] Next, the pillar cover 430 will be described. In the following description, as shown in Figure 4, the pillar cover 430 will be described in an embodiment having a front cover member 440 made of resin material and a rear cover member 480 made of resin material. However, the pillar cover 430 may also be a single component in which the portion corresponding to the front cover member 440 and the portion corresponding to the rear cover member 480 are integrally molded.

[0026] As shown in Figure 5, the front cover member 440 and the rear cover member 480 are connected to each other to form a pillar cover 430 that covers the headrest pillar 400 from the outside. When the front cover member 440 and the rear cover member 480 are connected to each other, the pillar-side stay 414 provided on the upper part 410 of the headrest pillar 400 is exposed forward through the front opening 448. Note that the rear cover member 480 shown in Figure 4 is connected to the front cover member 440 after the front cover member 440 has engaged with the cover plate 320 (cover support 321). This will be described later.

[0027] As shown in Figure 4, the front cover member 440 has a roughly triangular frame shape and has a base portion 442, a left slanted side portion 444, a right slanted side portion 446, and a front opening 448. The right slanted side portion 446 and the left slanted side portion 444 are connected via a gently curved top portion 450. Each of the left slanted side portion 444, the right slanted side portion 446, and the top portion 450 is provided with a rear projection portion 452 that protrudes slightly toward the rear. As shown in Figure 3, a connecting hole 454 is formed in each rear projection portion 452. Note that Figure 3 shows the connecting hole 454 formed in the rear projection portion 452 of the top portion 450.

[0028] The top portion 450 is provided with a forward projection 456 that protrudes slightly forward. A first insertion hole 458 is formed in the forward projection 456. The first insertion hole 458 overlaps with a second insertion hole 416 formed on the upper surface of the pillar-side stay 414.

[0029] As shown in Figure 4, the base portion 442 has a substantially flat tab portion 460 and an engaging claw 462 provided on the tab portion 460. The tab portion 460 protrudes slightly rearward from the lower end on the rear surface of the base portion 442 and is bent so as to incline downward as it extends further rearward. As shown in Figures 6 and 7, the engaging claw 462 has an overlapping portion 464 that overlaps the left leg portion 402L or the right leg portion 402R when the pillar cover 430 is viewed from the seat width direction. The overlapping portion 464 protrudes from the lower surface of the tab portion 460 so as to incline forward as it extends downward. Note that the tab portion 460 is not essential. For example, the engaging claw 462 may be provided on the base portion 442. Also, although there are two engaging claws 462 in the illustrated example, there may be one or three or more engaging claws 462.

[0030] The engaging claw 462 further has a locking portion 466 extending from the overlapping portion 464. The locking portion 466 is bent relative to the overlapping portion 464 and extends forward. As shown in Figure 6, in the engaging claw 462, the lower part of the overlapping portion 464 and the locking portion 466 are inserted into the engagement hole 322 of the cover plate 320. That is, the engaging claw 462 engages with the engagement hole 322. This causes the pillar cover 430 to engage with the cover plate 320 (cover support 321). The front end of the locking portion 466 is located in front of the front end of the engagement hole 322. This prevents the engaging claw 462 from coming out of the engagement hole 322. The front end of the locking portion 466 is the front end of the engaging claw 462.

[0031] As shown in Figure 4, the two engagement holes 322 are located between the left leg portion 402L and the right leg portion 402R of the headrest pillar 400. Therefore, in each engagement claw 462 that engages with each engagement hole 322, the overlapping portion 464 is located between the left leg portion 402L and the right leg portion 402R.

[0032] Figure 8 is a schematic bottom view of the headrest pillar 400 and pillar cover 430 as seen from direction VIII (downward) in Figure 5. The rear cover member 480 is omitted. The imaginary straight line L1 is a straight line connecting the front end of the second left extension 406L and the front end of the second right extension 406R, and indicates the front end position of the headrest pillar 400. The front end of the locking part 466 (the front end of the engaging claw 462) is behind the imaginary straight line L1 in the seat longitudinal direction. That is, the front end of the engaging claw 462 is located behind the front end of the headrest pillar 400 (the front ends of the second left extension 406L and the second right extension 406R).

[0033] Figure 9 is a schematic side view of the vehicle seat 10 as seen from the left. However, the cushion of the seat back 30 is omitted, and only the seat back frame 300, the casing 62 of the airbag module 60, the box body 310, and the cover plate 320 are shown. Also, only the front cover member 440 of the pillar cover 430 is shown. The imaginary straight line L2 is a straight line that extends in the vertical direction and passes through the rear end of the casing 62. The front end of the locking part 466 is behind the imaginary straight line L2 in the front-rear direction of the seat. That is, the front end of the engaging claw 462 is located behind the airbag 64 before deployment.

[0034] As shown in Figure 4, the bottom portion 442 of the front cover member 440 has a rib 468. The rib 468 is located above the tab portion 460 on the rear surface of the bottom portion 442 and extends along the sheet width direction. In the sheet width direction, the length of the rib 468 is greater than the length of the tab portion 460.

[0035] The front cover member 440 has a left wall portion 470 and a right wall portion 472. The left wall portion 470 is the portion enclosed by the base portion 442 and the left slanted portion 444 to the left of the front opening 448. The right wall portion 472 is the portion enclosed by the base portion 442 and the right slanted portion 446 to the right of the front opening 448. Two insertion portions 474 are provided on the rear surfaces of the left wall portion 470 and the right wall portion 472, respectively. The two insertion portions 474 protrude rearward from the left wall portion 470 and the right wall portion 472, respectively. The rib 468 is located between the two insertion portions 474.

[0036] The rear cover member 480 has a roughly triangular frame shape and includes a claw protection portion 482, a rear opening 484, and an insertion hole 486 extending along the front-rear direction of the seat. As shown in Figure 6, when the front cover member 440 and the rear cover member 480 are connected to each other, the front surface of the claw protection portion 482 faces the rear surface of the bottom portion 442 of the front cover member 440. Therefore, when the rear cover member 480 is viewed from the rear, the claw protection portion 482 covers and shields the engaging claw 462.

[0037] Furthermore, as shown in Figure 3, the engaging claw 462 is located between the headrest 40 and the claw protection portion 482 in the front-rear direction of the seat. In other words, when the engaging claw 462 is viewed from the front-rear direction of the seat, the engaging claw 462 overlaps with the headrest 40.

[0038] As shown in Figure 4, the outer peripheral edge of the rear cover member 480 has an outwardly protruding wall portion 488 that slightly protrudes forward. As shown in Figure 3, a plurality of connecting claws 490 are provided on the inner surface of the outwardly protruding wall portion 488. Note that Figure 3 shows the connecting claws 490 provided on the top of the rear cover member 480.

[0039] As shown in Figure 4, the rear cover member 480 has an inwardly protruding wall portion 492 that extends along the front-rear direction of the sheet at the periphery of the rear opening 484. As shown in Figure 3, a storage space 494 is formed between the inwardly protruding wall portion 492 and the outwardly protruding wall portion 488. Most of the front cover member 440 is housed in the storage space 494.

[0040] As shown in Figure 5, the rear cover member 480 has two pillar retaining portions 496 and two tongue portions 498 on its front surface. The two pillar retaining portions 496 are spaced apart from each other at a predetermined interval in the seat width direction. The two pillar retaining portions 496 each hold the left leg portion 402L and the right leg portion 402R of the headrest pillar 400, respectively.

[0041] The tongue portion 498 is a thin-walled protrusion that slightly projects forward from the front surface of the rear cover member 480, located below the rear opening 484. Therefore, as shown in Figure 7, an engagement recess 500 is formed between the upper surface of the tongue portion 498 and the lower surface of the inwardly protruding wall portion 492. Since there are two tongue portions 498, there are also two engagement recesses 500. Alternatively, there may be one tongue portion 498 and one engagement recess 500.

[0042] When the rear cover member 480 is connected to the front cover member 440, the outwardly protruding wall portion 488 covers the rear projection portion 452 of the front cover member 440 (see Figures 2 and 3). Consequently, the connecting claw 490 engages with the connecting hole 454 (see Figure 3). In addition, the slightly downwardly inclined rear end of the tab portion 460 engages with the engaging recess 500 (see Figure 7). Furthermore, the insertion portion 474 is inserted into the insertion hole 486. A clip 501 attached to the rear end of the insertion portion 474 inside the insertion hole 486 (see Figure 4) prevents the insertion portion 474 from coming out of the insertion hole 486.

[0043] As shown in Figure 5, when the tab portion 460 engages with the two engaging recesses 500, the two engaging recesses 500 are located between the two engaging claws 462. If there are three or more engaging claws 462, at least one engaging recess 500 is located between two adjacent engaging claws 462.

[0044] As shown in Figure 6, when the pillar cover 430 is configured, the tab portion 460 is located in the vertical direction between the upper surface of the cover plate 320 (cover support 321) and the lower surface of the inwardly protruding wall portion 492 of the rear cover member 480.

[0045] Next, we will explain how to assemble the pillar cover 430 to the headrest pillar 400 and how to assemble the headrest 40 to the headrest pillar 400 for the vehicle seat 10 shown in Figure 1.

[0046] As shown in Figure 4, in the pillar mounting state, the upper part of the left leg portion 402L, the upper part of the right leg portion 402R, and the upper part of the pillar 410 are exposed upward from the top of the seat back 30. From this state, as shown in Figure 10, the front of the headrest pillar 400 is covered by the front cover member 440. Specifically, the two engaging claws 462 of the front cover member 440 engage with the two engaging holes 322 of the cover plate 320, respectively. This engagement supports the front cover member 440 on the cover plate 320.

[0047] As a result of the above engagement, the second insertion hole 416 on the upper surface of the pillar-side stay 414 and the first insertion hole 458 in the front projection 456 of the front cover member 440 overlap (see Figure 3). The front cover member 440 is supported by the headrest pillar 400 when a nut (not shown) is screwed onto the connecting bolt 502 that passes through the second insertion hole 416 and the first insertion hole 458. In this way, by engaging the engaging claw 462 with the engaging hole 322, the alignment of the second insertion hole 416 and the first insertion hole 458 is made easy.

[0048] Next, the headrest 40 is supported by a pillar-side stay 414 located at the front of the upper part 410 of the headrest pillar 400 via a support bolt 418. Then, as shown in Figure 11, the display 50 is attached to the seat back 30.

[0049] Next, the rear cover member 480 is connected to the front cover member 440. That is, as shown in Figures 5 and 7, the tab portion 460 is engaged with the engagement recess 500. This aligns the connecting claw 490 of the rear cover member 480 with the connecting hole 454 of the front cover member 440. By engaging the tab portion 460 with the engagement recess 500 in this way, the positioning of the rear cover member 480 relative to the front cover member 440 becomes easier. Subsequently, as shown in Figure 3, the connecting claw 490 of the rear cover member 480 is engaged with the connecting hole 454 of the front cover member 440. This completes the pillar cover 430 shown in Figure 2, and the headrest pillar 400 is covered by the pillar cover 430.

[0050] As described above, the vehicle seat 10, with the headrest pillar 400, headrest 40, and pillar cover 430 assembled, will have the following effects.

[0051] As can be seen from Figures 3 and 4, in the vehicle seat 10, the pillar cover 430 is supported by the headrest pillar 400 and engages with a cover support 321, which is a separate component from the headrest pillar 400. Therefore, even if an excessive load is applied to the headrest 40 from the occupant's head, deformation of the pillar cover 430 can be suppressed.

[0052] In the above-described embodiment, the cover support 321 is a cover plate 320 attached to the seat back frame 300, but the cover support 321 may be the seat back frame 300 itself. Alternatively, the cover support 321 may be another member attached to the seat back frame 300. In other words, the pillar cover 430 may be indirectly supported by the seat back frame 300, or it may be directly supported by the seat back frame 300.

[0053] The pillar cover 430 has engaging claws 462. The cover plate 320, which is the cover support 321, has engaging holes 322 into which the engaging claws 462 engage.

[0054] Thus, the simple structure in which the engaging claw 462 engages with the engaging hole 322 effectively suppresses deformation of the pillar cover 430.

[0055] As shown in Figure 5, the pillar cover 430 has a front cover member 440 and a rear cover member 480. The front cover member 440 has an engaging claw 462. The rear cover member 480 has a claw protection portion 482. When the rear cover member 480 is viewed from the rear in the front-rear direction of the seat, the claw protection portion 482 shields the engaging claw 462.

[0056] With this configuration, the rear of the engaging claw 462 is covered by the claw protection portion 482, thereby protecting the engaging claw 462.

[0057] As shown in Figures 6 and 7, the overlapping portion 464 of the engaging claw 462 overlaps the headrest pillar 400 when the vehicle seat 10 is viewed from the seat width direction.

[0058] In this case, the headrest pillar 400 functions as a protective part for the engaging claw 462 in the seat width direction. Therefore, the transmission of external forces to the engaging claw 462 in the seat width direction is suppressed.

[0059] The headrest pillar 400 has a left leg portion 402L and a right leg portion 402R (two legs 402). As shown in Figure 1, the left leg portion 402L and the right leg portion 402R are spaced apart from each other in the seat width direction and supported by the connecting frame 304 of the seat back frame 300. As can be seen from Figures 4 to 7, the overlapping portion 464 of the engaging claw 462 is located between the left leg portion 402L and the right leg portion 402R.

[0060] Since the engaging claw 462 is positioned between the left leg portion 402L and the right leg portion 402R, the transmission of external forces to the engaging claw 462 in the seat width direction is further suppressed.

[0061] As shown in Figure 8, the engaging claw 462 is positioned behind the front end of the headrest pillar 400 in the seat-front-rear direction.

[0062] In this case, compared to the case where the engaging claw 462 is positioned in front of the front end of the headrest pillar 400, the distance between the point on the pillar cover 430 that receives the load of the occupant's head and the engaging claw 462 is larger. As a result, the load of the occupant's head is less likely to be transmitted to the engaging claw 462. Consequently, the pillar cover 430 becomes less prone to deformation.

[0063] As shown in Figures 4 and 7, the front cover member 440 has a tab portion 460 that protrudes rearward in the front-rear direction of the seat. The engaging claw 462 is provided on this tab portion 460. In the vertical direction, the tab portion 460 is located between the rear cover member 480 and the cover support 321.

[0064] Since the tab portion 460 is located between the rear cover member 480 and the cover support 321, deformation of the tab portion 460 and the engaging claw 462 can be suppressed even when a load is transmitted to the tab portion 460.

[0065] As shown in Figure 7, the rear cover member 480 has an engaging recess 500 into which the tab portion 460 engages. By engaging the tab portion 460 with the engaging recess 500 in this way, the front cover member 440 can be easily assembled to the rear cover member 480. Furthermore, deformation of the front cover member 440 can be suppressed.

[0066] As shown in Figure 5, the front cover member 440 has two or more engaging claws 462. The engaging recess 500 is located between two adjacent engaging claws 462. In this case, positioning the tab portion 460 relative to the engaging recess 500 is easy when engaging the tab portion 460 with the engaging recess 500.

[0067] As shown in Figure 9, the vehicle seat 10 is equipped with an airbag 64. The engaging claw 462 is located behind the airbag 64 in the front-rear direction of the seat before deployment.

[0068] Since the engaging claw 462 is located behind the airbag 64, interference between the engaging claw 462 and the airbag 64 is avoided when the airbag 64 deploys.

[0069] As shown in Figure 10, when viewed from the front-to-back direction of the seat, the engaging claw 462 overlaps with the headrest 40. Therefore, it is difficult for a load to be applied to the engaging claw 462 from the front. In other words, with this configuration, the engaging claw 462 can be protected by the headrest 40.

[0070] As shown in Figure 4, a rib 468 extending along the sheet width direction is provided above the tab portion 460 on the bottom portion 442 of the front cover member 440. The rib 468 reinforces the tab portion 460 and the bottom portion 442, thereby suppressing deformation of the tab portion 460 and the bottom portion 442.

[0071] The following additional information is disclosed regarding the above embodiments.

[0072] (Note 1) The vehicle seat (10) of the present disclosure is a vehicle seat mounted on a vehicle and comprises a seat back frame (300), a headrest pillar (400) supported by the seat back frame, a pillar cover (430) that covers the headrest pillar from the outside and is supported by the headrest pillar, and a cover support (321) which is a separate member from the headrest pillar and engages with the pillar cover.

[0073] Since the pillar cover engages with the cover support, deformation of the pillar cover can be suppressed even when a large load is applied to the pillar cover from the headrest.

[0074] (Note 2) In the vehicle seat described in Appendix 1, the pillar cover may have an engaging claw (462), and the cover support may have an engaging hole (322) into which the engaging claw engages.

[0075] The simple structure, in which the engaging claws engage with the engaging holes, effectively suppresses deformation of the pillar cover.

[0076] (Note 3) In the vehicle seat described in Appendix 1 or 2, the pillar cover comprises a front cover member (440) and a rear cover member (480) which is a separate member from the front cover member and is located behind the front cover member in the seat's front-rear direction, wherein the front cover member has the engaging claws, and the rear cover member has a claw protection portion (482), and when the rear cover member is viewed from the rear in the seat's front-rear direction, the claw protection portion may shield the engaging claws.

[0077] Since the rear of the engaging claw is covered by the claw protection part, the engaging claw can be protected.

[0078] (Note 4) In the vehicle seat described in Appendix 3, the engaging claw may have an overlapping portion (464) that overlaps the headrest pillar when the vehicle seat is viewed from the seat width direction.

[0079] When viewed from the seat width direction, the headrest pillar overlaps the overlapping portion of the engaging claw, so in the seat width direction, the headrest pillar functions as a protective part for the engaging claw. Therefore, the transmission of external forces to the engaging claw is suppressed in the seat width direction.

[0080] (Note 5) In the vehicle seat described in Appendix 4, the headrest pillar has two legs (402) supported by the seat back frame and spaced apart from each other in the seat width direction, and the overlapping portion of the engaging claw may be located between the two legs.

[0081] Since the engaging claws are positioned between the two legs, the transmission of external forces to the engaging claws in the width direction of the seat is further suppressed.

[0082] (Note 6) In the vehicle seat described in any one of appendices 3 to 5, the engaging claw may be positioned behind the front end of the headrest pillar in the front-rear direction of the seat.

[0083] In this case, compared to when the engaging claw is positioned forward of the front end of the headrest pillar, the distance between the point on the pillar cover that receives the load of the occupant's head and the engaging claw is greater. As a result, the load of the occupant's head is less likely to be transmitted to the engaging claw.

[0084] (Note 7) In the vehicle seat described in any one of appendices 3 to 6, the front cover member has a tab portion (460) that protrudes rearward in the front-rear direction of the seat, the engaging claw is provided on the tab portion, and the tab portion may be located between the rear cover member and the cover support in the vertical direction.

[0085] Since the tab portion is located between the rear cover member and the cover support in the vertical direction, deformation of the tab portion and the engaging claw can be suppressed even if a load is transmitted to the tab portion from the vertical direction.

[0086] (Note 8) In the vehicle seat described in Appendix 7, the rear cover member may have an engaging recess (500) into which the tab portion engages.

[0087] By engaging the tab portion with the engagement recess, the front cover member can be easily assembled to the rear cover member. Furthermore, deformation of the front cover member can be suppressed.

[0088] (Note 9) In the vehicle seat described in Appendix 8, the front cover member may have two or more of the engaging claws, and the engaging recess may be located between adjacent engaging claws.

[0089] In this case, positioning the tab portion relative to the engagement recess is easy when engaging the tab portion with the engagement recess.

[0090] (Note 10) In a vehicle seat described in any one of the appendices 2 to 9, an airbag (64) may be provided, and the engaging claw may be located behind the airbag in the front-rear direction of the seat.

[0091] Since the engagement claw is located behind the airbag, interference between the engagement claw and the airbag is avoided when the airbag deploys.

[0092] Furthermore, the present invention is not limited to the disclosure described above, and can take various configurations without departing from the spirit of the invention. [Explanation of Symbols]

[0093] 10...Vehicle seat 30...Seat back 40...Headrest 60...Airbag module 64...Airbag 300...Seat back frame 304...Connecting frame 310...Box body 320...Cover plate 321...Cover support 322…Engagement hole 400…Headrest pillar 402... Leg section 414... Pillar-side stay 430...Pillar cover 440...Front cover component 460...Tab section 462...Engaging claw 464... Overlay section 466... ​​Lock section 468...Rib 480...Rear cover component 482...Claw protection part 500...Engaging recess

Claims

1. A vehicle seat installed in a vehicle, Seat back frame and The headrest pillar is supported by the aforementioned seat back frame, A pillar cover that covers the headrest pillar from the outside and is supported by the headrest pillar, A cover support, which is a separate component from the headrest pillar and with which the pillar cover engages, A vehicle seat equipped with [a specific feature / feature].

2. In the vehicle seat according to claim 1, the pillar cover has an engaging claw, The cover support is a seat for a vehicle, having engagement holes into which the engaging claws engage.

3. In the vehicle seat according to claim 2, the pillar cover comprises a front cover member and a rear cover member which is a separate member from the front cover member and is located behind the front cover member in the seat's front-rear direction, The front cover member has the engaging claws, The aforementioned rear cover member has a claw protection portion, When the rear cover member is viewed from the rear in the front-rear direction of the seat, the claw protection portion shields the engaging claw, a seat for a vehicle.

4. A vehicle seat according to claim 3, wherein the engaging claw has an overlapping portion that overlaps the headrest pillar when the vehicle seat is viewed from the seat width direction.

5. In the vehicle seat according to claim 4, the headrest pillar has two legs that are spaced apart from each other in the seat width direction and supported by the seat back frame, The overlapping portion of the engaging claw is located between the two legs of a vehicle seat.

6. A vehicle seat according to claim 3, wherein the engaging claw is positioned behind the front end of the headrest pillar in the front-rear direction of the seat.

7. In the vehicle seat according to claim 3, the front cover member has a tab portion that protrudes rearward in the front-rear direction of the seat, and the engaging claw is provided on the tab portion. The tab portion is located between the rear cover member and the cover support in the vertical direction, and is a seat for a vehicle.

8. A vehicle seat according to claim 7, wherein the rear cover member has an engaging recess into which the tab portion engages.

9. A vehicle seat according to claim 8, wherein the front cover member has two or more of the engaging claws, and the engaging recess is located between adjacent engaging claws.

10. A vehicle seat according to claim 2, comprising an airbag, The engaging claw is located behind the airbag in the front-to-rear direction of the seat, in a vehicle seat.

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