Seat structure

Abstract

To provide a seat structure which can effectively utilize an assist grip.SOLUTION: A seat structure includes: a vehicular seat cushion having a cushion frame and a cushion pad; and an assist grip which is attached to the cushion frame so as to protrude from the cushion frame to the outer side in a vehicle width direction. The cushion pad has an extending part which extends from the cushion frame to the outer side in the vehicle width direction. The assist grip is disposed below the extending part.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a seat structure equipped with an assist grip. [Background technology]

[0002] The vehicle seat structure of Patent Document 1 includes a seat cushion, a side finisher, and an assist grip. The side finisher is a cover that covers a reclining device. The side finisher is provided on a side of the seat cushion. The assist grip is used as a handle that an occupant directly grasps when getting in and out of the seat. The assist grip is attached to the outer surface of the side finisher so as to protrude outward in the vehicle width direction from the outer surface of the side finisher. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 8-127275 Summary of the Invention [Problem to be solved by the invention]

[0004] It is desirable to utilize the assist grip effectively in ways other than as a handle that occupants can directly grasp when getting on and off the vehicle.

[0005] One object of the present invention is to provide a seat structure that allows effective use of an assist grip. [Means for solving the problem]

[0006] A seat structure according to one aspect of the present invention comprises: a vehicle seat cushion having a cushion frame and a cushion pad; an assist grip attached to the cushion frame so as to protrude outward in a vehicle width direction from the cushion frame, The cushion pad has a protruding portion protruding outward in a vehicle width direction from the cushion frame, The assist grip is disposed below the protruding portion. Effect of the Invention

[0007] In the seat structure, since the assist grip is disposed below the overhanging portion, even if an occupant places their hand on the upper surface of the overhanging portion or places an object on the seat cushion when getting in and out of the vehicle or adjusting their seating position, the overhanging portion is prevented from being deflected. Therefore, the seat structure can effectively utilize the assist grip. In the seat structure, since the assist grip is attached so as to protrude outward, in the event of a side collision, a vehicle component such as a deformed door panel comes into contact with the assist grip before it plunges into the occupant. Therefore, the seat structure can easily protect the occupant because the load can be transmitted to the cushion frame via the assist grip before the deformed vehicle component plunges into the occupant. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a seat structure according to an embodiment. [Diagram 2] FIG. 2 is a view of the assist grip provided in the seat structure according to the embodiment, seen from above the vehicle. [Diagram 3] FIG. 3 is a view of the assist grip provided in the seat structure according to the embodiment, seen from the left side of the vehicle. [Figure 4A] FIG. 4A is a view of the seat structure before the seat back is folded onto the seat cushion, as viewed from the left side of the vehicle. [Figure 4B] FIG. 4B is a view from the left side of the vehicle showing the folded seat structure in the process of being stored in the space around the passenger's feet. [Figure 4C] FIG. 4C is a view of the folded seat structure stored in the space under the occupant's feet as viewed from the left side of the vehicle. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] An embodiment of the seat structure of the present invention will be described with reference to Figures 1 to 3 and Figures 4A to 4C. In the figures, "FR" indicates the front of the vehicle having the seat structure 1 according to the embodiment, "RR" indicates the rear of the vehicle, "LH" indicates the left side of the vehicle, "RH" indicates the right side of the vehicle, "UP" indicates the top of the vehicle, and "LWR" indicates the bottom of the vehicle. "OUT" indicates the outside of the vehicle, and "IN" indicates the inside of the vehicle. The front-to-rear direction of the vehicle is the vehicle length direction. The left-to-right direction of the vehicle is the vehicle width direction. The up-down direction of the vehicle is the vehicle height direction.

[0010] <<Embodiment>> [Seat structure] The seat structure 1 according to the embodiment shown in FIG. 1 includes a seat cushion 2 and an assist grip 7. The seat cushion 2 has a cushion frame 21 and a cushion pad 22. The assist grip 7 is attached to the cushion frame 21 so as to protrude outward from the cushion frame 21. One of the features of the seat structure 1 of this embodiment is that, as shown in FIG. 2, the cushion pad 22 has a specific protruding portion 221, and the assist grip 7 is disposed below the protruding portion 221. The following description will be given in the order of an overview of the seat structure 1, followed by details of each component of the seat structure 1.

[0011] [overview] The seat structure 1 is disposed on a floor 100. The seat structure 1 in this example is a rear seat. The floor 100 in this example is a rear floor. The seat structure 1 in this example is a bench seat having a width that allows multiple people to sit on it. Unlike this example, the seat structure 1 may be a separate seat for one person. The seat structure 1 may be a retractable seat or a fixed seat. The retractable seat is a seat that can be folded so that the seat back 3 is retracted forward and overlaps the seat cushion 2. The retractable seat may be a seat that can move forward in a folded state, or a seat that cannot move in a folded state. The movable seat may be a dive-down seat or a tumble seat, as described later. The fixed seat is a seat in which the seat back 3 cannot be retracted forward. The seat structure 1 in this example is a dive-down seat.

[0012] The dive-down type seat is a seat in which the seat structure 1 in a folded state can be stored in the space around the passenger's feet as shown in Figs. 4A to 4C by the following operations. A lever 91 on the side of the seat cushion 2 is operated to move a back lock (not shown) from a locked position to an unlocked position. The back lock fixes and releases the back frame to and from the cushion frame 21, which will be described later. As shown in Fig. 4A, the seat back 3 is tilted forward and placed on top of the seat cushion 2. A strap 95 on the rear of the seat cushion 2 is pulled to move a seat hook (not shown) from a locked position to an unlocked position. The seat hook fixes and releases the seat hook to and from the attachment target of the cushion frame 21. In this example, the attachment target is a bulkhead 120. By gripping the strap 95 and the assist grip 7 described later, the rear side of the seat cushion 2 is rotated forward and upward around a rotation mechanism 41L on the lower end side of the left front leg 41 described later and a rotation mechanism on the lower end side of the right front leg (not shown) as rotation axes, as shown in Fig. 4B. As shown in Fig. 4C, the rear side of the seat cushion 2 is rotated downward around a rotation mechanism 41U on the upper end side and a rotation mechanism 41L on the lower end side of the left front leg 41 described later and a rotation mechanism on the upper end side and a rotation mechanism on the lower end side of the right front leg (not shown) as rotation axes.

[0013] A tumble-type seat is a seat that, although not shown in the drawings, can be folded and placed upright in the space around the passenger's feet by the following operation. Specifically, the rear side of the folded seat cushion is rotated forward around the front side of the seat cushion as the rotation axis. This rotation positions the seat back forward. The seat cushion rearward. The front side of the seat cushion is positioned downward. The rear side of the seat cushion is positioned upward.

[0014] [Seat cushion] 1, the seat cushion 2 includes a cushion frame 21 and a cushion pad 22. The cushion frame 21 forms the framework of the seat cushion 2. The cushion frame 21 will be described in detail later. The cushion pad 22 forms the seat surface of the seat cushion 2.

[0015] The front side of the seat cushion 2 is supported on the floor 100 via the left front leg 41 and the right front leg. In this example, the rear side of the seat cushion 2 is supported on the floor 100 via a bulking material 120 shown in FIG. 4A. The bulking material 120 is connected to the floor 100. Unlike this example, the rear side of the seat cushion 2 may be supported on the floor 100 without using the bulking material 120. Examples different from this example include the following two configurations. As a first example, there is a configuration in which the seat cushion 2 is supported by front and rear legs against a flat floor. As a second example, there is a configuration in which the front side of the seat cushion 2 is supported by the lower step by the front legs, and the rear side is supported by the upper step without using legs, against a stepped floor having a lower step and an upper step.

[0016] (Cushion frame) The cushion frame 21 of this example includes a main frame 21M and a sub-frame (not shown). The main frame 21M constitutes the outer shape of the cushion frame 21. The main frame 21M is formed in a rectangular frame shape. The sub-frame reinforces the main frame 21M, for example. The sub-frame is disposed inside the main frame 21M.

[0017] The main frame 21M has a front frame 21F, a left frame 21L, a right frame, and a rear frame. For ease of explanation, a part of the left frame 21L, the whole of the right frame, and the whole of the rear frame are omitted from the illustration. The front frame 21F is disposed on the front side. The front frame 21F extends in the vehicle width direction. The left frame 21L is disposed on the left side. The left frame 21L extends in the vehicle length direction. The right frame is disposed on the right side. The right frame extends in the vehicle length direction. The rear frame is disposed on the rear side. The rear frame extends in the vehicle width direction.

[0018] In this example, the left frame 21L, the right frame, and the front frame 21F are formed as a continuous piece without any seams. That is, the front frame 21F, the left frame 21L, and the right frame are formed by bending a single pipe or rod. Unlike this example, the left frame 21L, the right frame, and the front frame 21F may be welded. The left frame 21L, the right frame, and the rear frame may be formed as a continuous piece or may be welded.

[0019] The shapes of the front frame 21F, the left frame 21L, the right frame, and the rear frame include at least one of a rod shape, a tube shape, and a plate shape. The front frame 21F, the left frame 21L, the right frame, and the rear frame may be configured by combining two or more shapes among the rod shape, the tube shape, and the plate shape. The shapes of the front frame 21F, the left frame 21L, the right frame, and the rear frame in this example are cylindrical.

[0020] (Cushion pad) The cushion pad 22 covers the upper part of the cushion frame 21. The cushion pad 22 includes a cover material that forms the surface of the cushion pad 22, and a cushion material provided inside the cover material. For example, fabric or leather is used for the cover material. For example, urethane foam is used for the cushion material. The cushion pad 22 has a protruding portion 221.

[0021] <Overhang> The protruding portion 221 is a portion that protrudes outward in the vehicle width direction beyond the cushion frame 21. The protruding portion 221 in this example is configured by a part of a side portion of the cushion pad 22 protruding outward. Unlike this example, the protruding portion 221 may be configured by the entire side portion of the cushion pad 22 protruding outward. The protruding portion 221 in this example is provided on the left front portion of the cushion pad 22. Unlike this example, the protruding portion 221 may be provided on the right front portion of the cushion pad 22, or may be provided on both the left front portion and the right front portion of the cushion pad 22.

[0022] (Assist Grip) The assist grip 7 can be used as a handle that the occupant can grasp when getting in and out of the vehicle, when moving the retractable seat forward, or when driving on rough roads. The assist grip 7 is attached to the cushion frame 21 so as to protrude outward in the vehicle width direction from the cushion frame 21. Since the assist grip 7 is attached so as to protrude outward, in the event of a side collision, a deformed vehicle component comes into contact with the assist grip 7 before it plunges into the occupant. The seat structure 1 equipped with this assist grip 7 can transmit a load to the cushion frame 21 via the assist grip 7 before the deformed vehicle component plunges into the occupant, making it easier to protect the occupant.

[0023] The number of assist grips 7 can be appropriately selected. In this example, the number of assist grips 7 is one. This number is the number of assist grips on either the left or right side of the vehicle. Unlike this example, the number of assist grips 7 may be two. As shown in FIG. 2, the assist grip 7 is disposed below the protruding portion 221. Therefore, even if the occupant places his / her hand on the upper surface of the protruding portion 221 or places an object on the seat cushion 2 when getting on / off or adjusting the seating posture, the assist grip 7 is disposed below the protruding portion 221, so that the deflection of the protruding portion 221 can be suppressed. The assist grip 7 in this example is attached to the front portion of the left frame 21L. Unlike this example, when the protruding portion 221 is provided on the right front portion of the cushion pad 22, the assist grip 7 may be attached to the front portion of the right frame. Also, unlike this example, when there are two assist grips 7 and the protrusions 221 are provided on both the left and right front portions of the cushion pad 22, each of the assist grips 7 is attached to the front portion of the left frame 21L and the front portion of the right frame.

[0024] 2, when the assist grip 7 is viewed from above the vehicle, the outer edge of the assist grip 7 may be located closer to the inside of the vehicle than the outer edge of the protruding portion 221, or a portion of the outer edge of the assist grip 7 may protrude outward from the outer edge of the protruding portion 221. If a portion of the outer edge of the assist grip 7 protrudes, in the event of a side collision, the load can be transmitted to the cushion frame 21 via the assist grip 7 before the cushion pad 22, making it easier to protect the occupant.

[0025] As shown in Figs. 2 and 3, the assist grip 7 has a C-shape in this example. One end and the other end of the assist grip 7 are attached to the lower part of the left frame 21L via a bracket 70. The bracket 70 has a U-shape in this example. The bracket 70 is fixed so as to extend downward from the left frame 21L. The assist grip 7 is attached to the lower side of the bracket 70. The assist grip 7 and the bracket 70 and the bracket 70 and the left frame 21L can be attached by bolts, welding, or the like. In this example, as shown in Fig. 3, the assist grip 7 viewed from the side is attached so as to surround the pivot mechanism 41U on the upper end side of the left front leg 41 described later. That is, the assist grip 7 is attached so as to incline downward as it goes outward. The assist grip 7 appears C-shaped whether viewed from above as shown in Fig. 2 or from the side as shown in Fig. 3. The assist grip 7 surrounding the upper end side rotation mechanism 41U tends to protect the upper end side rotation mechanism 41U. Therefore, it tends to prevent a large load from being input to the upper end side rotation mechanism 41U, which tends to deform, during a side collision.

[0026] (Seat back) As shown in FIG. 1 , the seat back 3 includes a back frame and a back pad 32. The back frame is not shown. The back frame forms the skeleton of the seat back 3. The back pad 32 covers the front of the back frame. The back pad 32 forms the back part of the seat back 3.

[0027] [Left front leg / right front leg] The left front leg 41 supports the left front portion of the cushion frame 21 from below. The right front leg supports the right front portion of the cushion frame 21 from below. The configurations of the left front leg 41 and the right front leg are symmetrical. The left front leg 41 and the right front leg extend generally in the vehicle height direction.

[0028] As shown in Figs. 1, 3, and 4(A) to 4(C), the lower end of the left front leg 41 in this example is connected to the floor 100 via a pivot mechanism 41L and a base 41B. The floor 100 is omitted in Fig. 3. The upper end of the left front leg 41 in this example is connected to the left front part of the left frame 21L via a pivot mechanism 41U. The pivot mechanisms 41L and 41U are formed of pins in this example. The base 41B is fixed to the floor 100 with a bolt or the like.

[0029] In this example, the lower end of the right front leg is connected to the floor 100 via a pivot mechanism and a base. In this example, the upper end of the right front leg is connected to the right front part of the light frame via a pivot mechanism. In this example, the pivot mechanism is composed of a pin. The base is fixed to the floor 100 with a bolt or the like.

[0030] Unlike this example, the lower end of the left front leg 41 and the lower end of the right front leg may be directly connected to the floor 100 without a pivot mechanism and a base. The upper end of the left front leg 41 and the upper end of the right front leg may be directly connected to the cushion frame 21 without a pivot mechanism.

[0031] [Cross beam] 1 reinforces the left front leg 41 and the right front leg. The cross beam 5 extends in the vehicle width direction. The cross beam 5 bridges between the middle of the left front leg 41 and the middle of the right front leg.

[0032] [Action and Effect] By disposing the assist grip 7 below the overhanging portion 221, it is possible to suppress the bending of the overhanging portion 221 even if the occupant places his / her hand on the upper surface of the overhanging portion 221 when getting on / off the vehicle or adjusting the seating posture, or places an object on the seat cushion 2. Therefore, the seat structure 1 can effectively utilize the assist grip 7.

[0033] The assist grip 7 is attached so as to protrude outward in the vehicle width direction, so that in the event of a side collision, the assist grip 7 comes into contact with the deformed vehicle component before it plunges into the occupant. Therefore, the seat structure 1 can transmit a load to the cushion frame 21 via the assist grip 7 before the deformed vehicle component plunges into the occupant, so that the occupant is easily protected. In particular, the assist grip 7 is provided so as to surround the rotation mechanism 41U on the upper end side of the left front leg 41, so that the upper end side rotation mechanism 41U is easily protected. Therefore, in the event of a side collision, it is easy to prevent a large load from being input to the rotation mechanism 41U on the upper end side, which is easily deformed.

[0034] The present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0035] 1 Seat structure 2 Seat cushion 21 Cushion Frame 21M Mainframe 21F Front Frame 21L Left Frame 22 Cushion pad 221 Overhang 3 Seat back 32 Back Pad 41 Left front leg 41U, 41L Rotation mechanism 41B Base 5 Crossbeam 7 Assist Grip 70 Bracket 91 Lever 95 Straps 100 Floors 120 Heightening material

Claims

[Claim 1] a vehicle seat cushion having a cushion frame and a cushion pad; an assist grip fixed to the cushion frame so as to protrude outward in a vehicle width direction from the cushion frame, The cushion pad has a protruding portion protruding outward in a vehicle width direction from the cushion frame, The shape of the assist grip when viewed from above the vehicle has a space therein, When viewed from above the vehicle, the entire inner side of the assist grip is disposed outward from the cushion frame and below the protruding portion. Seat structure.

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