JP7248371B2 - seat structure - Google Patents

Description

The present invention relates to a vehicle seat structure.

2. Description of the Related Art An electric vehicle disclosed in Patent Document 1 is known as a vehicle seat structure. The electric vehicle of Patent Document 1 includes a seat body and a slide mechanism that supports the seat body so as to be slidable in the front-rear direction. The seat body has a seat cushion and a seat back. The slide mechanism includes a pair of left and right lower rails fixed to the floor panel, and a pair of left and right upper rails that support the seat cushion and slide on the lower rails. A pair of front and rear stays span the pair of left and right lower rails. In this electric vehicle, a battery is arranged between a pair of left and right lower rails under a seat cushion and a pair of front and rear stays. The battery is fixed to a pair of front and rear stays.

JP 2018-39483 A

In Patent Literature 1, the seat and the battery are composed of separate members. Therefore, the seat and the battery each have their own constituent members, and the number of parts is large.

One of the objects of the present invention is to provide a seat structure capable of reducing the number of parts.

A seat structure according to one aspect of the present invention includes:
a vehicle seat;
and a battery section,
At least a portion of the battery section constitutes a portion of the seat.

The above seat structure can reduce the number of parts. This is because at least part of the battery section also serves as a component of the seat. Therefore, it is possible to reduce the number of components of the seat portion that are replaced by the battery portion. Since the number of parts can be reduced, weight reduction, cost reduction, and productivity improvement can be expected.

1 is an exploded perspective view showing an outline of a seat structure according to Embodiment 1. FIG. 1 is a side view showing an outline of a seat structure according to Embodiment 1. FIG.

Embodiment 1 of the seat structure of the present invention will be described below with reference to FIGS. 1 and 2. FIG. The same reference numerals in the drawings indicate the same names. In the drawing, "FR" indicates the front of the vehicle, "RR" the rear, "LH" the left, "RH" the right, "UP" the top, and "LWR" the bottom.

<<Embodiment 1>>
[Seat structure]
A seat structure 1 according to Embodiment 1 has a seat 2 arranged on a floor panel 100 on which a vehicle occupant sits, and a battery section 7 . One of the features of the seat structure 1 according to Embodiment 1 is that at least part of the battery portion 7 constitutes part of the constituent members of the seat 2 . A detailed description will be given below.

[Outline of sheet]
The seat 2 may be a front seat or a rear seat. The seat 2 may be a separate type or a bench type. The type of the seat 2 may be a sliding type that can slide freely in the longitudinal direction of the vehicle, or a fixed type that cannot slide. The seat 2 includes a seat body having a seat cushion 3, a seat back 4 and a headrest 5. - 特許庁In the case of a slide seat, a slide mechanism 6 is provided in addition to the seat body. The seat 2 of this example is a front separate type slide seat.

The seat cushion 3 serves as a seat surface for a seated passenger. The seat cushion 3 has a cushion pad 31 and a cushion frame 32 . The cushion pad 31 constitutes the seat surface of the seat cushion 3 and suppresses the transmission of vehicle vibrations and the like to the occupant to enhance the comfort of the occupant. The cushion frame 32 forms the skeleton of the seat cushion 3 . The seat back 4 supports the back of the occupant. The seatback 4 has a back pad 41 and a back frame 42 . The back pad 41 constitutes the back surface of the seat back 4 and supports the back of the occupant to enhance the seating comfort of the occupant. The back frame 42 forms the skeleton of the seat back 4 . The back frame 42 is rotatably supported with respect to the cushion frame 32 . Thereby, the seat back 4 is rotatable with respect to the seat cushion 3 . The headrest 5 supports the head of the occupant.

The slide mechanism 6 supports the seat body slidably along the longitudinal direction of the vehicle. The slide mechanism 6 has a pair of lower rails 61 and a pair of upper rails 62 . A pair of lower rails 61 extend along the longitudinal direction of the vehicle and are fixed to floor panel 100 . A pair of upper rails 62 support the cushion frame 32 and slide on the lower rails 61 . As the upper rail 62 slides on the lower rail 61, the cushion frame 32 (seat body) fixed to the upper rail 62 slides.

[Battery part]
The battery portion 7 has a portion that constitutes a part of the components of the seat 2 of the vehicle. That is, the entire battery section 7 may share the function of the seat 2 , or a part of the battery section 7 may share the function of the seat 2 . At least part of the battery portion 7 preferably forms a member that functions as a rigid member of the seat 2 among the constituent members of the seat 2 . For example, at least part of the battery section 7 may constitute a seat frame (at least one of the cushion frame 32 and the back frame 42). This is because the rigidity of the seat 2 can be easily increased because the battery portion 7 itself is heavy. Moreover, it is because it is easy to suppress a vibration. When part of the battery portion 7 constitutes the seat frame, part of the battery portion 7 may be connected to a predetermined position of the seat frame. The battery section 7 includes, for example, a battery main body 70, a protective cover 71, and an accessory member. In this example, the protective cover 71 forms part of the seat frame, specifically the cushion frame 32 .

(Battery body)
The battery main body 70 stores power to be supplied to electronic devices and the like. The battery main body 70 is, for example, a lithium ion battery. Specifically, there is a configuration in which a plurality of battery cells are connected in series so as to secure the required voltage. The battery main body 70 is housed within a protective cover 71 that constitutes the cushion frame 32 .

(protective cover (cushion frame))
The protective cover 71 accommodates the battery body 70 inside to mechanically protect the battery body 70 from the outside, and forms the outer shape of the cushion frame 32 . That is, the cushion pad 31 of the seat cushion 3 and the back frame 42 of the seat back 4 are attached to the protective cover 71 .

The outer shape of the protective cover 71 can be selected as appropriate, and in this example it is a rectangular block shape. The upper surface of the protective cover 71 has a front surface 711, an inclined surface 712, and a rear surface 713 in order from the front to the rear. The rear surface 713 is positioned lower than the front surface 711, and the inclined surface 712 is inclined downward from the front side of the vehicle toward the rear side. A pair of left and right side wall portions 715 are formed on both left and right edges of the upper surface of the protective cover 71 so as to extend from the inclined surface 712 to the rear surface 713 . The front surface 711 and the upper surfaces of the pair of left and right side wall portions 715 are flush with each other. A portion of the protective cover 71 that protrudes above the rear surface 713 (a portion that constitutes the front surface 711) corresponds to the front frame of the cushion frame 32, and a pair of left and right side wall portions 715 are side frames of the cushion frame 32. corresponds to A portion protruding above the rear surface 713 and the pair of left and right side wall portions 715 are combined with the back frame 42 to form the frame-shaped cushion frame 32 . This protective cover 71 has a mounting portion 72 , a fixing portion 73 , a stopper portion 74 and a cushion spring 75 .

<Mounting part>
The mounting portion 72 fixes the back frame 42 to the protective cover 71 . The mounting portion 72 is configured by a through hole formed on the rear end side of each side wall portion 715 in this example. The lower side portion 421 of the back frame 42 is inserted through the through hole, and the back frame 42 is rotatably supported with the lower side portion 421 as a rotation axis. Thus, the seat back 4 is rotatably supported with respect to the cushion frame 32 (seat cushion 3).

<Fixed part>
The fixing portion 73 fixes the protective cover 71 to the upper rail 62 of the slide mechanism 6 . That is, the protective cover 71 (battery section 7 ) slides in the longitudinal direction of the vehicle in conjunction with the sliding of the upper rail 62 on the lower rail 61 . The fixed portions 73 are formed to protrude forward and rearward from the lower right and left sides of the front and rear surfaces of the protective cover 71 , respectively. A bolt (not shown) can be used to fix the fixing portion 73 and the upper rail 62 .

<Stopper>
The stopper part 74, together with a slip control part 315 (described later) of the cushion pad 31, stops the occupant in the event of a vehicle collision, so that the occupant slides on the seat cushion 3 toward the front side of the vehicle and slips under the seat belt. Regulates the so-called submarine phenomenon. In this example, the stopper portion 74 is composed of the inclined surface 712 on the upper surface of the protective cover 71 described above. The submarine phenomenon is regulated by the inclined surface 712 and the slip regulating portion 315 of the cushion pad 31 coming into contact with each other.

<Cushion spring>
The cushion spring 75 supports the lower part of the cushion pad 31 and enhances the seating comfort of the passenger due to the cushion pad 31 . The cushion spring 75 is composed of an S spring (zigzag spring) in this example. The number of cushion springs can be selected as appropriate, and in this example, a plurality (two) is used. The two cushion springs are arranged in parallel in the front-rear direction of the vehicle and span between the pair of left and right side wall portions 715 . Alternatively, the cushion spring 75 may be a plurality of coil springs interposed between the rear surface 713 and the cushion pad 31 .

<others>
The protective cover 71 further has an intake port 76, an exhaust port 77, and a harness insertion hole (not shown). The intake port 76 introduces air for cooling the battery body 70 into the protective cover 71 . In this example, the intake port 76 is formed on the lower rear side of the left side surface of the protective cover 71 . The exhaust port 77 exhausts the air flowing inside the protective cover 71 . The exhaust port 77 is formed at a position diagonal to the intake port 76 across the battery body 70 , and in this example, it is located on the front upper side of the right side surface of the protective cover 71 . A duct may be connected to the protective cover 71 instead of the exhaust port 77 . One end of the duct may be arranged inside the protective cover 71 and the other end of the duct may be discharged out of the vehicle through a through hole provided in the floor panel 100, for example. A flexible duct is mentioned as a duct. This is because the flexible duct easily follows the sliding of the seat 2 . The harness insertion hole allows the harness 110 to be inserted. In this example, the harness insertion hole is formed on the lower surface of the protective cover 71 . The harness 110 supplies power of the battery body 70 to the electrical equipment. The harness 110 is inserted through a through hole formed in the floor panel 100 and has a length that can follow the sliding of the seat 2 .

The protective cover 71 may further have reinforcing ribs (not shown). The reinforcing ribs fill the gap between the battery body 70 and the protective cover 71 to reduce transmission of impact to the battery body 70 at the time of vehicle collision. The reinforcing ribs may be formed to protrude from the right and left side surfaces of protective cover 71 toward battery body 70 . This makes it easier to suppress the transmission of the impact to the battery main body 70 particularly in the event of a side collision.

<Material>
The material of the protective cover 71 may be either metal or resin. If the protective cover 71 is made of metal, the strength and rigidity of the protective cover 71 can be easily increased, so the rigidity of the seat 2 can be easily increased. If the material of the protective cover 71 is a metal with high thermal conductivity, it can be expected that the heat of the battery portion 7 forming the cushion frame 32 can be used as a seat heater. When the protective cover 71 is made of metal, the protective cover 71 can be manufactured by cutting a metal material or by die-casting it into a predetermined shape. On the other hand, when the protective cover 71 is made of resin, it can be formed by injection molding into a specific shape.

(Auxiliary machine parts)
The accessory member includes, for example, a cooling mechanism for the battery main body 70 . A specific example of the cooling mechanism is the fan 78 or the like. The fan 78 dissipates heat from the battery body 70 . The fan 78 is housed within the protective cover 71 in this example.

[Cushion pad]
The cushion pad 31 is attached to the upper portion of the protective cover 71 forming the cushion frame 32 . The cushion pad 31 has a concave portion 310 and a slip control portion 315 . The concave portion 310 fits the cushion pad 31 on the upper portion of the protective cover 71 . The concave portion 310 has a shape corresponding to the shape of the upper portion of the protective cover 71 . A recess 310 is formed in the lower surface of the cushion pad 31 . The concave portion 310 has a front covering portion 311 into which a portion forward of the pair of left and right side walls 715 of the protective cover 71 is fitted, and a side wall covering portion 312 into which the pair of left and right side walls 715 are fitted. The slip regulating portion 315 is stopped by the stopper portion 74 of the protective cover 71 in a state where the concave portion 310 of the cushion pad 31 is fitted in the upper portion of the protective cover 71, thereby regulating the above-described submarine phenomenon (FIG. 2). The slip control portion 315 is formed of an inclined surface along the stopper portion 74 (inclined surface 712).

[Effect]
The seat structure 1 according to the embodiment can reduce the number of parts. This is because the cushion frame 32 , which is one of the constituent members of the seat 2 , is composed of the protective cover 71 for the battery section 7 . Since the number of parts can be reduced, weight reduction, cost reduction, and productivity improvement can be expected. Moreover, the seat structure 1 is aesthetically pleasing. This is because the battery portion 7 is not exposed from the cushion pad 31 even when the seat 2 is slid forward and backward.

The present invention is not limited to these examples, but is indicated by the scope of the claims, and is intended to include all modifications within the meaning and scope of equivalents of the scope of the claims. For example, the back frame may be composed of the battery portion (protective cover), or both the cushion frame and the back frame may be composed of the battery portion (protective cover). Also, a part of the bench seat may be composed of the battery section. By doing so, it is easy to mount a battery unit having a large battery capacity.

REFERENCE SIGNS LIST 1 seat structure 2 seat 3 seat cushion 31 cushion pad 310 recess 311 front covering portion 312 side wall covering portion 315 slip control portion 32 cushion frame 4 seat back 41 back pad 42 back frame 421 lower side portion 5 headrest 6 slide mechanism 61 lower rail 62 upper rail 7 Battery Part 70 Battery Body 71 Protective Cover 711 Front Surface 712 Inclined Surface 713 Rear Surface 715 Side Wall Part 72 Mounting Part 73 Fixing Part 74 Stopper Part 75 Cushion Spring 76 Air Inlet 77 Air Outlet 78 Fan 100 Floor Panel 110 Harness

Claims (1)

a vehicle seat;
and a battery section,
The sheet is
a seat body;
a slide mechanism for slidably supporting the seat body along the longitudinal direction of the vehicle;
The slide mechanism is
a lower rail fixed onto a floor panel of the vehicle;
and an upper rail that slides on the lower rail,
The battery section has a protective cover for housing the battery body and auxiliary equipment members ,
The protective cover constitutes a part of the seat body and is fixed to the upper rail ,
A bulging portion having a front surface of the upper surface of the protective cover and an inclined surface that slopes downward toward the rear from the rear end of the front surface is provided in the upper front portion of the protective cover,
The accessory member is housed inside the bulging portion,
seat structure.

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