JP2583100Y2 - Structure of vehicle seat with lifter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat such as an automobile seat in which a lifter for raising and lowering a seat cushion is provided on a slide rail and the seat cushion is raised and lowered via a link.

[0002]

2. Description of the Related Art Some conventional seat cushions with lifters are provided with lifters for separately raising and lowering a front portion and a rear portion of the seat cushion. The lifters are provided with upper and lower slide rails provided on the left and right sides of the seat cushion. A seat cushion is arranged between a bracket integral with the rail, and a drive mechanism with an operation handle is attached to one of the brackets, and by rotating the operation handle in this drive mechanism, the front or rear portion of the seat cushion is connected via a link. It is going up and down. The drive mechanism excluding the operation handle is covered with a shield cover, and the operation handle is operated by a switching lever to transmit the rotational operation force of the operation handle to the drive mechanism that moves the front or rear portion of the seat cushion up and down. ing.

[0003]

In the above conventional product, the drive mechanism of the lifter with the operation handle is disposed so as to protrude outward with respect to the seat cushion. Therefore, the width of the seat cushion is restricted by the drive mechanism of the lifter. That is, due to the space in the vehicle cabin, there is a problem that the width of the seat cushion is reduced by the amount by which the drive mechanism of the lifter projects outward.

In view of the above, the present invention provides an upright support plate integrally provided on an upper rail of a slide rail with a lifter operating portion, and a bracket provided integrally with the upper rail inside the support plate. In a vehicle seat in which a lift mechanism is provided to raise and lower a seat cushion via a link, the width of the vehicle seat is not restricted and can be formed in a wide shape, and the appearance quality when the seat cushion is raised is improved.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, a storage space portion is formed by cutting out a lower portion of an outer side of a foam pad constituting the seat cushion. A lifter drive mechanism is arranged in the section,
On the outer surface of the pad facing the storage space, a side frame integral with the pan frame of the seat cushion is joined, and a locking edge formed downward on the pan frame has a skin covering the pad and the side frame. The terminal is locked, and the upper part of the drive mechanism of the lifter is covered with a shield cover whose upper end is located in the storage space and fixed to the support plate.

[0006]

Since the drive mechanism for the lifter is provided in the storage space provided below the outside of the foam pad, the drive mechanism for the lifter does not protrude outside the seat cushion. When the seat cushion is raised, the portion facing the storage space is covered with the skin, and the end of the skin is locked by the downward locking edge of the frame, so that the inside of the seat cushion is exposed to the outside. Never do.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. (SC) in the figure is a seat cushion, (S
B) shows the seat back, respectively, and the seat cushion (S
The storage space part (A) is located at the lower part on the outside in the width direction of C).
In the storage space (A), a drive mechanism (2) for the lifter and an upper end of a shield cover (4) for covering the upper part of the drive mechanism (2) are provided. 6A) denotes an operation knob of the slide rail (6) for adjusting the front / rear position of the seat cushion (SC), and (7A) denotes an operation knob of the reclining device (7) for tilting the seat back (SB).

The illustrated seat cushion (SC) comprises a bread frame (12), a molded foam pad (10) supported by the frame (12),
The pad (10) is covered with a skin (11), and a lower portion of one outer side of the pad (10) is cut out to form the storage space (A).

Storage space (A) in pad (10)
A plate-like side frame (13) welded to the frame (12) is joined to the outer surface facing the storage space (A).
The drop of the upper pad (10) is prevented. The side frame (13) is covered by the gusset of the skin (11), and the terminal (11a) of the gusset is made of a synthetic resin retainer (11) integrally sewn to the end (11a).
b), the side frame (1) of the frame (12)
3) It is hooked on a locking edge (12a) formed downward on the side, and a part of the gusset of the skin (11) is fixed to the side frame (13) by a garnish (14).

The drive mechanism (2) of the lifter operates an operation handle (2) as an operation section by operating a switching lever (20).
The operation force according to 1) is switched to a drive mechanism for a front lifter that raises and lowers the front side of the seat cushion (SC) or a drive mechanism for a rear lifter that raises and lowers the rear side of the seat cushion (SC). Things. In the drawing, the switching lever (20) is integrally fixed to a tube shaft (23) penetrating the operation shaft (22), and a switching cam (24) is fixed to the tube shaft (23). Switching lever (2
When the switch (0) is operated, the switching cam (24) rotates and the gear (25) integrally provided on the operation shaft (22) is moved to the gear (26) of the front lifter mechanism or the gear (not shown) of the rear lifter mechanism. It is constituted so that it may mesh with.

The illustrated front lifter is configured as follows. That is, when the gear (26) is rotated by the gear (25), the pinion gear (28) pivotally mounted on a shaft passing through the bracket (5) integral with the upper rail (61) of the slide rail (6) rotates, The sector gear (29) meshing with the pinion gear (28) rotates. The sector gear (29) is integrally fixed to a rotating shaft (30) whose both ends are rotatably supported by the left and right brackets (5). The link (31) provided on the rotating shaft (30) and the frame (12) rotates to move the front side of the seat cushion (SC) up and down. In the figure (2
6) denotes a friction brake, and (32) denotes a bearing plate.

The drive mechanism for the front and rear lifters, the slide rail (6), and the upper and lateral sides of the reclining device are covered with a synthetic resin shield cover (4). Denotes a slit for operating the switching lever (20), and (62) denotes a lower rail of a slide rail fixed to the vehicle floor side.

Thus, the drive mechanism (2) for the lifter is disposed in the storage space (A) provided in the seal cushion (SC) and does not protrude outside the seat cushion (SC). When the seat cushion (SC) is lifted by the lifter drive mechanism (2), the upper part of the lifter drive mechanism (2) is exposed to the outside covered by the shield cover (4) fixed to the support plate (32). There is no exposure. The outer surface of the seat cushion (SC) facing the storage space (A) is covered with a skin (11) via a side frame (13), and a terminal (11a) of the skin (11) is provided.
Is locked to the locking edge (12a) of the frame (12) located below the side frame (13), so that when the seat cushion (SC) is lifted by the lifter, the storage space (A) of the seat cushion is ) Is not exposed to the outside.

[0014]

According to the present invention, the lower part of the outer side of the foam pad constituting the seal cushion is cut off,
Since the storage space for storing the drive mechanism of the lifter is provided, the drive mechanism of the lifter does not protrude outside the seat cushion. Therefore, a seat cushion wider than the conventional product by the width of the storage space can be formed, and the space in the vehicle compartment can be effectively used.

Further, in the case where the seat cushion moves up and down independently of the drive mechanism of the lifter, the outer surface of the pad facing the storage space of the seat cushion is joined to the side frame integral with the pan frame. ,
The deformation of the pad above the storage space can be prevented. Also,
Since the deformation of the pad is prevented by the side frame, wrinkles and the like do not occur on the skin covering the portion facing the storage space. In addition, when the seat cushion is lifted by the lifter above the drive mechanism of the lifter because the terminal of the skin that covers the pad and the side frame is locked by the locking edge formed downward on the pan frame. Further, the interior of the seat cushion is not exposed to the outside by the skin, and the skin is stretched without wrinkles as described above, so that the appearance quality of the seat when the seat cushion is raised is improved.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

[Explanation of symbols]

 SC Seat cushion A Storage space part 2 Lifter drive mechanism 10 Pad 21 Lifter operation part

Claims (1)

(57) [Scope of request for utility model registration] An operating portion for a lifter is provided on an upright support plate integrally provided on an upper rail of a slide rail, and a lifter driving mechanism is provided on a bracket provided inside the support plate integrally with the upper rail. In the vehicle seat for raising and lowering the seat cushion via a link, a lower portion of an outer side of a foam pad constituting the seat cushion is cut out to form a storage space portion, and a lifter is provided in the storage space portion. A drive mechanism is provided, and a side frame integral with a pan-shaped frame of the seat cushion is joined to an outer surface of the pad facing the storage space portion, and a locking edge formed downward on the pan-shaped frame includes a pad and a pad. The terminal of the epidermis covering the side frame is locked, and the upper part of the drive mechanism of the lifter is located at the upper end in the storage space. The structure of a vehicle seat with a lifter covered with a shield cover fixed to a support plate.