JP6546960B2 - Vehicle seat - Google Patents

Description

  The present disclosure relates to a vehicle seat, and is applicable to, for example, a vehicle seat provided with a reclining device.

  Some vehicle seats include a reclining device (recliner) that enables angle adjustment between a seat cushion forming a seat surface and a seat back forming a backrest. The reclining device is assembled between the seat cushion side frame and the seat back side frame and covered with the resin side cover (outer cover) on the outside of the seat cushion side frame and the inner cover on the seat back side frame (For example, Unexamined-Japanese-Patent No. 2006-232123).

JP, 2006-232123, A

  When a large-sized reclining device is used, a difference occurs between the shape of the inner cover on the seat back side and the shape of the outer cover on the seat cushion side, resulting in a gap.

  An object of the present disclosure is to provide a vehicle seat that reduces a gap between an outer cover and an inner cover of a reclining device.

The outline of typical ones of the present disclosure will be briefly described as follows.
That is, the vehicle seat includes a seat cushion, a first side frame joined to the reclining device, a second side frame facing the first side frame, the first side frame, and the second side frame. A seatback having a shaft connecting the side frames at the rotation center of the reclining device, a side cover provided on the outer side of the seat cushion and covering the outer side of the reclining device, and an inner side of the seatback And a reclining cover that covers the inside of the reclining device. The reclining cover covers the first side frame and is formed with a disc-like ridge toward the side cover.

  According to the vehicle seat, the gap between the outer cover and the inner cover can be reduced.

FIG. 1 is a view for explaining an example of the configuration of a vehicle seat. FIG. 2 is a view for explaining an example of the configuration of a vehicle seat. FIG. 3 is a view for explaining an internal structure of the vehicle seat of FIG. FIG. 4 is a view for explaining an internal structure of the vehicle seat of FIG. FIG. 5 is a view for explaining an internal structure of the vehicle seat of FIG. FIG. 6 is a view for explaining an internal structure of the vehicle seat of FIG. FIG. 7 is a view for explaining the reclining cover of FIG. 4; FIG. 8 is a view for explaining the reclining cover of FIG. 4; FIG. 9 is a figure for demonstrating the effect of the reclining cover of FIG. FIG. 10 is a figure for demonstrating the effect of the reclining cover of FIG. FIG. 11 is a figure for demonstrating the effect of the reclining cover of FIG. FIG. 12 is a figure for demonstrating the effect of the reclining cover of FIG. FIG. 13 is a figure for demonstrating the effect of the reclining cover of FIG.

  In the vehicle seat according to the embodiment, a thin disk-shaped flange portion is provided on an inner cover (reclining cover) assembled on the seat back side, and the outer periphery (side cover) of the seat cushion is aligned. This prevents the occurrence of a large gap even when the seat back is reclining. Since it is not necessary to separately provide a cover for filling the gap between the seat cushion side frame and the seat back frame, the number of parts can be reduced. By thinning the outer peripheral mating portion, the distance to the occupant (seated person) can be increased, and the pressure on the occupant can be reduced.

  Hereinafter, examples will be described using the drawings. However, in the following description, the same components may be assigned the same reference numerals and repeated descriptions may be omitted. Note that the drawings may be schematically represented as to the width, thickness, shape, etc. of each portion in comparison with the actual embodiment in order to clarify the description, but this is merely an example, and the interpretation of the present invention is not limited. It is not limited.

(Configuration of vehicle seat)
FIG. 1 is a perspective view from the left front side of a vehicle seat, and FIG. 2 is a perspective view from the left rear side of the vehicle seat. In order to facilitate understanding of the structure of the vehicle seat 3, the directions of “front”, “rear”, “left”, “right”, “upper” and “lower” are shown in the figure, and these directions Is also used to express relative positional relationship in the following description. Further, these directions correspond to the direction of the vehicle when the vehicle seat 3 is mounted on the vehicle. For example, the forward direction of the vehicle seat 3 and the forward direction of the vehicle indicate the same direction. In the following, the structure of the vehicle seat 3 suitable for the left front seat (for example, the front passenger seat when the driver is the right front seat) will be described, but the vehicle seat 3 is also applicable to other seats . The vehicle seat mounted on the right side of the vehicle has a configuration in which the left and right of the vehicle seat 3 are replaced.

  The vehicle seat 3 includes a seat body 30, operation units 31 to 34, a seat slide adjustment device 35, a side cover 37, and a seat belt device 38. The seat body 30 includes a seat cushion 301, a seat back 302, and a headrest 303. The seat cushion 301 forms a seating surface. The seat back 302 forms a backrest. The headrest 303 is disposed above the seat back 302 and forms a pillow portion for supporting the head of the occupant. Further, the seat body 30 has a reclining device that enables angle adjustment between the seat cushion 301 and the seat back 302.

  The operation units 31 and 33 are operation units for slide operation, and receive a slide operation of the sheet main body 30 in the front-rear direction. The occupant can perform the slide operation of the seat body 30 regardless of which of the operation units 31 and 33 is used. The seat slide adjusting device 35 is fixed to the vehicle and enables the seat body 30 to slide in the front-rear direction (position adjustment). In addition, the operation units 32 and 34 are operation units for reclining operation, and receive the reclining operation of the seat body 30. The occupant can perform the reclining operation of the seat body 30 regardless of which of the operation units 32 and 34 is used.

  An attachment frame portion 36 is provided on the back side of the seat body 30 (the surface on the rear side of the seat back 302), and the operation portions 31 and 32 are in the non-operation state (state not operated by the occupant) , Housed in the mounting frame 36. The attachment frame portion 36 is attached to a frame (not shown) joined to the seat back frame 320. Further, a pocket 304 capable of storing a magazine or the like is provided at the lower portion on the rear side of the seat back 302, and the operation units 31 and 32 are disposed above the pocket 304.

  At the rear of the seat cushion 301, a retractor (not shown) of the seat belt device 38 is fixedly installed. The webbing 381 pulled out from the retractor is inserted into a belt guide 382 installed at the upper end of the seat back 302, and the tongue plate 383 at the tip is connected to the seat cushion side frame 311 on the left via an anchor. The buckle 384 is detachable. A tongue plate 385 is inserted through the middle of the webbing 381 pulled out of the belt guide 382. The tongue plate 385 is detachable with respect to the buckle 386 connected to the right side seat cushion side frame 312 via an anchor portion.

(Seat frame)
FIG. 3 is a perspective view from the left front side of a seat frame of the vehicle seat of FIG.

  The seat frame 300 is assembled by a seat cushion frame 310, a seat back frame 320 which is hinged to the seat cushion frame 310 by a reclining device 314 so as to be reclining and adjustable in an angle, and left and right seat slide adjusting devices 35 and left and right risers 355 and 356. Be The seat cushion 301 is assembled with the seat cushion frame 310, the seat cushion pad (not shown), and the skin 319 (see FIG. 1), and the seat back 302 is the seat back frame 320, the seat back pad (not shown), and the skin 329 (see FIG. 1).

  The seat slide adjusting device 35 is slidably fitted in and supported by the left guide rail 351, the right guide rail 352, the left guide rail 351, and the right guide rail 352 installed on the floor of the vehicle. Slide rail 353, the right slide rail 354, a lock mechanism, and an operation mechanism. In addition, the left riser 355 and the right riser 356 are fixedly raised on the left slide rail 353 and the right slide rail 354 of the seat slide adjusting device 35, and the seat cushion frame 310 is mounted thereon. The frame 310 is fixedly mounted to support the seat cushion 301.

  The seat cushion frame 310 is formed of a substantially rectangular frame body serving as a framework of the seat cushion 301, and as shown in FIG. 3, the left seat cushion side frame 311 and the right seat cushion side disposed respectively on the left and right sides Of the frame 312, the plate-like frame 313 installed on the upper surface of the front side of the left seat cushion side frame 311 and the right seat cushion side frame 312, and the left seat cushion side frame 311 and the right seat cushion side frame 312 And a cushion frame connecting pipe 315 for connecting the rear inner side surfaces.

  The left seat cushion side frame 311 and the right seat cushion side frame 312 are respectively formed of sheet metal members extending in the front-rear direction, and the left seat cushion side frame 311 and the right seat cushion side frame 312 are substantially identical to each other. They are separated in the left-right direction in a parallel state.

  At a portion where the left seat cushion side frame 311 and the seat back frame 320 are connected, as shown in FIG. 3, a reclining device 314 for pivotably connecting the seat back 302 to the seat cushion 301 is provided. . The reclining device 314 includes, for example, a spiral spring (not shown) for urging the seat back frame 320 in the upright state, and a spring locking member (not shown) for locking the extension end of the spiral spring. There is. The reclining device 314 is configured to allow the seat body 30 to be in a folded state (a state in which the reclining angle is substantially 0 degrees so that the seat cushion 301 and the seat back 302 are in contact with each other). . A reclining cover 340 covering the reclining device 314 is attached to the reclining device 314. The left seat cushion side frame 311 and the reclining device 314 are covered with a side cover 37.

  The seat back frame 320 includes a back frame main body 321, a left side frame 322, a bracket 323, and a right side frame 324.

  The back frame main body 321 is a frame member which forms a framework of the seat back frame 320, and is formed in a substantially U-shape by bending a cylindrical round pipe formed at two places. The round pipe is bent so that both ends thereof are located at the upper and lower portions of the left side frame 322, and is joined to the left side frame 322.

  The right side frame 324 is a bracket for assembling the right side of the back frame main body 321 to the right side of the seat cushion frame 310. Therefore, the outside of the frame on the right side of the back frame main body 321 is joined to the inner surface of the right side frame 324 by welding. The outer surface of the right side frame 324 is pivotally attached to the inner surface of the right seat cushion side frame 312 of the seat cushion frame 310.

  The left side frame 322 has a substantially U-shape in which a sheet metal member is bent, and extends in the vertical direction. The left side frame 322 is formed so as to gradually project forward and backward continuously from the upper side to the lower side.

  The bracket 323 has a substantially U-shape in which a sheet metal member is bent inward and extends in the vertical direction, and the bracket 323 is welded and fixed so as to sandwich the left side frame 322 from the outer direction.

  As described above, both ends of the round pipe are located on the left side of the back frame main body 321. Among the two ends of this round pipe, one end of the frame 321a at the lower part of the back frame main body 321 penetrates the inner side of the left side frame 322 so that the axial direction is orthogonal to the surface of the left side frame 322 The holes are fitted and joined. The frame 321 a at the lower part of the back frame main body 321 has a function of a connecting shaft that connects the left side frame 322 and the right side frame 324 connected to the reclining device 314.

  Of the two ends of the round pipe, the other end of the frame 321 b on the upper part of the back frame main body 321 is welded to the rear surface of the left side frame 322 so that the axial direction is orthogonal to the surface of the left side frame 322 Are joined by

  The outer surface of the bracket 323 is pivotally attached to the inner surface of the left seat cushion side frame 311. At this time, a reclining device 314 is assembled between these two surfaces. As a result, since the seat back frame 320 can be locked at a desired inclined position with respect to the seat cushion frame 310, the vehicle seat 3 can be provided with a reclining function.

  The reclining device 314 is assembled such that its center of rotation coincides with the axis of the round pipe of the frame 321 a in the lower part of the back frame main body 321.

  A pair of pillar guides 328 for inserting a pillar (not shown) of the head rest 303 and a belt guide 382 for inserting a seat belt are attached to the frame 321 b of the upper part of the back frame main body 321.

(Reclining cover)
The reclining cover (inner cover) will be described with reference to FIGS. FIG. 4 is a perspective view from the right front side in the vicinity of the reclining cover of the vehicle seat of FIG. FIG. 5 is a perspective view from the right rear side in the vicinity of the reclining cover of the vehicle seat of FIG. 1. 6 is a cross-sectional view of the vicinity of the reclining cover of the vehicle seat of FIG. 7 is a right side view of the reclining cover of FIG. 4; FIG. 8 is a cross-sectional view taken along line A1-A2 of FIG.

  As shown in FIGS. 4 and 5, the reclining cover 340 is a member that covers the inner portion of the reclining device 314, and is formed of synthetic resin.

  As shown in FIGS. 4 and 5, the reclining cover 340 has a substantially rectangular plate-shaped front wall portion (first wall portion) 341 and a substantially rectangular plate-shaped rear wall portion (second wall) facing the front wall portion 341. Section 342, a substantially semicircular bottom wall (third wall) 343 connecting the lower end of the front wall 341 and the lower end of the rear wall 342, and the right end of the front wall 341 Plate side wall (fourth wall) 344 connecting the right end of the rear wall 342, the left end of the front wall 341, the left end of the rear wall 342, and the left end of the bottom wall 343 And a disc-like collar portion 345 connecting the two. The thickness of the disc-like ridge 345 is substantially the same as the thickness of the front wall 341, the rear wall 342, the bottom wall 343, and the side wall 344. Therefore, the width of the front wall 341, the rear wall 342, and the left side frame 322 is very thin.

  The side cover 37 in the vicinity of the reclining device 314 includes a rear wall 371 having a substantially rectangular plate shape, a substantially semicircular upper wall 372 extending from an upper end of the rear wall 371, and an upper wall 372. A plate-like upper wall 373 extending in the front-rear direction from the end and a plate-like side wall 374 connecting the left end of the rear wall 371 and the left end of the upper wall 372 are mainly included. It is integrally formed of resin. In the vicinity of the end portion on the upper wall portion 373 side of the upper wall portion 372, a flange portion 375 extending inward is provided, and the gap between the flange portion 345 on the front side and the side cover 37 is filled.

  The buttocks 345 is a thin disc centered on the rotation center of the reclining device 314, and the left end of the bottom wall 343 in front of the left end of the front wall 341 and in the rear of the left end of the rear wall 342. It extends further downward and is aligned with the outer periphery of the side cover 37. Thereby, the positional relationship between the side cover 37 and the collar portion 345 can be made the same regardless of the inclination angle of the seat back 302, and the gap between the side cover 37 and the reclining cover 340 can be reduced. The side cover 37 also covers part of the riser 355 and the seat slide adjusting device 35.

  In the side wall portion 344, a shaft hole 346 for passing the frame 321a of the lower portion of the back frame main body 321 which is a connecting shaft, and a notch-like assembly opening extending from the shaft hole 346 to the upper outer periphery Notched openings 348 are formed extending radially from 347 and shaft holes 346, which are used when attaching or removing components of the recliner 314. Further, two claws 34A extending outward are integrally formed on the left side surface of the side wall portion 344 and used when being hooked and attached to the hole of the left side frame 322.

  The reclining cover 340 is fitted with the shaft hole 346 in the frame 321a of the lower part while crossing the frame 321a of the lower part by the notch-like assembling opening 347, and the claw 34A in the hole of the left side frame 322 It is hooked and assembled to the left side frame 322, and covers the reclining device 314 exposed to the inside of the vehicle seat 3.

  The reclining cover 340 is a member mounted from the inside to the outside with respect to the inner portion of the reclining device 314, and the rear wall 342 covering the back surface of the reclining device 314, as shown in FIG. The front wall 341 that extends obliquely from the side wall 344 side to the rear side with respect to the seat left-right direction and covers the front surface of the reclining device 314 inclines from the side wall 344 side to the front side with respect to the seat left-right direction It is configured to extend.

  Because of this configuration, the reclining cover 340 can be attached to the reclining device 314, avoiding the left side frame 322 and the bracket 323 fixed so as to sandwich the left side frame 322 in the front-rear direction.

  A gap of about 3 mm is also provided between the reclining cover 340 and the left side frame, and an interference area with the seat back pad which is urethane of the seat back 302 is set. Push the reclining cover 340 with urethane elasticity to fill the gap. Since the reclining cover 340 side is pushed out and comes into contact with something, the adjustment is set within the variation.

  The effect of the buttocks 345 of the reclining cover 340 will be described with reference to FIGS. 9 to 13 are views for explaining the effect of the reclining cover of FIG. 4, FIGS. 9 to 11 are side views from the left side of the vehicle seat of FIG. 1, and FIG. 12 is the vehicle seat of FIG. 13 is a perspective view from the right front side in the vicinity of the reclining cover of the vehicle, and FIG. 13 is a perspective view from the right rear side in the vicinity of the reclining cover of the vehicle seat of FIG.

  As shown in FIG. 9, the front-rear length (LF, LB) of the center of reclining rotation of the seat back 302 is larger than the lower length (LD). As shown by the arrows in FIG. 10, when the seat back 302 reclines forward, a portion with a small length rotates and a gap is formed between the side cover 37 and the seat back 302 in the vicinity surrounded by the broken line A. Occurs. In particular, when the sheet body 30 is in a folded state, the gap can be easily viewed from the rear and easily accessed. By providing the disc-like collar portion 345 on the reclining cover 340, the outer periphery of the collar portion 345 is located at the position of the broken line B as shown in FIG. There is no change in the positional relationship between 345 and the side cover 37. Thereby, the gap between the side cover 37 and the seat back 302 can be filled.

  Since the resin of the side cover 37 on the seat cushion side and the width direction of the disc-like collar portion 345 of the reclining cover 340 on the seat back side are aligned, foreign matter and the like are difficult to enter. Since the thickness of the disk-shaped flange portion 345 is thin, as shown in FIGS. 12 and 13, the cut amount of the seat cushion pad which is urethane of the seat cushion 301 can be reduced, and the shape of the seat cushion 301 is cranked. Can improve the appearance.

  Although the invention made by the inventor has been specifically described above based on the embodiments, it is needless to say that the present invention is not limited to the above embodiments and can be variously modified.

3: Vehicle seat 30: Seat body 37: Side cover 301: Seat cushion 302: Seat back 321: Back frame body 322: Left side frame 324: Right side frame 314: Reclining device 340: Reclining cover 341: Front wall Part 342: back wall 343: bottom wall 344: side wall 345: buttock

Claims (6)

And death over cushions,
A first side frame joined to the reclining device, a second side frame facing the first side frame, the first side frame and the second side frame at the rotation center of the reclining device A seat back having a connecting shaft;
A side cover provided on an outer side of the seat cushion and covering an outer side of the reclining device;
A reclining cover provided inside the seat back and covering the inside of the reclining device;
Equipped with
The reclining cover covers the first side frame, and has a disc-like collar formed so as to fit the outer periphery of the side cover ,
The center of the disk-shaped buttocks is located at the rotation center of the reclining device,
The vehicle seat, wherein the disc-like ridge portion is formed so as to have the same positional relationship with the side cover regardless of the inclination angle of the seat back . In the vehicle seat of claim 1,
The reclining cover is further formed of a resin integrally with the disc-like collar portion, a first wall, a second wall facing the first wall, and a bottom of the first wall. A third wall connecting the end and the bottom end of the second wall, and connecting one side end of the first wall and one side end of the second wall It has a fourth wall portion, a
The disc-like collar is configured to connect the other side end of the first wall, the other side end of the second wall, and the side end of the third wall. ,
The end of the disk-shaped ridge extends forward from the end on the side cover side of the first wall , and extends rearward from the end on the side cover side of the second wall , and A vehicle seat that extends downward from an end of the three-wall portion on the side cover side and is aligned with the outer periphery of the side cover. In the vehicle seat of claim 2,
The vehicle seat attached to the reclining device so as to avoid the first side frame in the front-rear direction . In the vehicle seat of claim 3,
The vehicle that the fourth wall portion having a notched opening extending radially from the notched assembly opening and the shaft hole is opened extends flared upward outer periphery from the shaft hole and the shaft hole into which the shaft Seat . In the vehicle seat of claim 4,
The side cover has a substantially rectangular plate-like rear wall, a substantially semicircular first upper wall extending from the upper end of the rear wall, and front and rear ends from the end of the first upper wall. A plate-like second upper wall extending in a direction, and a plate-like side wall connecting the outer end of the rear wall and the outer end of the second upper wall;
The vehicle seat provided with the buttock part extended inside in the edge part vicinity by the side of said 2nd upper wall part of said 1st upper wall part. In the vehicle seat of claim 5,
The seat back further has a back frame body,
The back frame main body is formed in a substantially U-shape by bending a circular pipe formed in a cylindrical shape at two places,
The round pipe is bent so that both ends thereof are located at the upper and lower portions of the first side frame, and joined to the first side frame,
The vertically extending portion of the round pipe is joined to the second side frame,
The vehicle seat, wherein the shaft is a round pipe joined to a lower portion of the first side frame.

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