JP2019194080A - Vehicle seat and seat frame of the same - Google Patents

Abstract

To provide a vehicle seat which can be stored in a storage position formed on a vehicle body floor and achieves further improvement of rigidity of a seat back with a simple structure, and to provide a seat frame of the vehicle seat.SOLUTION: The invention relates to a seat frame of a vehicle seat which can be stored from a use position to a storage position of a vehicle body floor. The seat frame includes: a seat back frame including vertical frame parts 51i, o extending in a vertical direction at seat side parts and lateral frame parts 51a, b coupling upper and lower end sides of the vertical frame parts 51e, o to each other; a pan frame extending to an area defined by the seat back frame; linear members 61, 62 installed between the vertical frame parts 51i, o on one surface of the pan frame; an input part St to which movement of operation conducted by an operator which moves the seat between the use and storage positions; and a transmission device 63 which transmits the movement from the input part St to a moving device. The transmission device 63 contacts with the linear members 61, 62.SELECTED DRAWING: Figure 7

Description

  The present invention particularly relates to a vehicle seat that can be stored in a storage position formed on a vehicle body floor by rotating a rotation link connected to a seat cushion, and a seat frame thereof.

Vehicle seats that can be stored in the storage position formed on the vehicle body floor are already known, and among them, on the floor surface in the vehicle, a seat installation surface, and a storage recess located behind the seat installation surface, And a seat device for a vehicle in which the seat is movable between a seat use position located on a seat installation surface and a storage position located in a storage recess (for example, Patent Document 1). reference).
And in the seat which can be stored used in the rear seat of the vehicle, the space above the stored seat is used as a luggage storage. Therefore, by attaching the pan frame to the seat back frame that forms a part of the floor surface in the vehicle so as to fill the recessed portion for storage in the stowed state, the seat back has the rigidity necessary for the stowed state. Has been granted.

  And in the folding rear seat for vehicles of patent documents 1, the linear member which connects the right-and-left frame part of the seat back frame formed in the rectangular frame shape is provided in three places between the upper and lower frame parts, and is stored The rigidity of the seat back is further improved.

Special table 2011-514283 gazette (FIG. 3)

  However, in the invention of Patent Document 1, since the linear member only extends in the horizontal direction between the upper and lower frame portions, it has been desired to further improve the rigidity of the seat back.

  The present invention has been made in view of the above problems, and an object of the present invention is a vehicle seat that can be stored in a storage position formed on a vehicle body floor, and a seat frame thereof, with a simple configuration, An object of the present invention is to provide a vehicle seat and a seat frame thereof in which the rigidity of the seat back is further improved.

  According to the seat frame of the vehicle seat of claim 1, the seat frame of the vehicle seat that can be stored from the use position to the storage position formed on the vehicle body floor, and at the side portion of the seat A seat back frame including a pair of vertical frame portions extending along the vertical direction and a pair of horizontal frame portions respectively connecting the upper end side and the lower end side of the pair of vertical frame portions, and fixed to the seat back frame A pan frame extending to an area defined by the seat back frame, a linear member fixed to one surface of the pan frame and laid so as to connect the pair of vertical frame portions; The movement of the operation by the operator for moving the sheet between the use position and the storage position of the sheet is transmitted, and the movement transmitted to the input unit, And a transmission device for transmitting to the mobile device for moving the sheet between the serial use position and said storage position, said transmission device, it abuts on the linear member, is solved by.

  Thus, since the transmission device is in contact with the linear member, the rigidity of the linear member is improved, and as a result, the rigidity of the pan frame is improved.

At this time, as in claim 2, the pan frame is fixed to a rear surface of the seat back frame and extends to a lower end of the seat back frame, and below the horizontal frame portion below the seat frame, It is preferable to have a folded portion that is folded forward.
With this configuration, the rigidity of the lower end portion of the seat back frame is improved.

At this time, as in claim 3, a side frame having a side surface extending in the front-rear direction of the seat and a rear end surface extending inward in the seat width direction from the seat rear end portion of the side surface, It is preferable that it is provided along the vertical frame portion, and at least a part of the rear end face is sandwiched between the seat back frame and the pan frame.
Since it comprises in this way, the support rigidity of a side frame can be improved.

At this time, it is preferable that the side frame is arranged so as to avoid the linear member.
Since it comprises in this way, interference with a side frame and a linear member is suppressed. As a result, workability at the time of assembling the seat back frame, the side frame, and the pan frame can be improved.

At this time, as in claim 5, a pair of the side frames are provided on both sides in the width direction of the seat, and the back of the seat back is provided on the outer surface of the one side frame in the seat width direction. A reclining device for adjusting an angle and a rigidity improving member provided at a position different from the reclining device on the surface are attached, and the rigidity improving member projects the reclining device from the surface of the side frame. It is preferable that the width is smaller than the width and protrudes from the surface.
Thus, since the rigidity improving member is configured to protrude with a width smaller than the width from which the reclining device originally provided on the vehicle seat protrudes, the rigidity improving member can be configured compactly, The rigidity of one side frame can be improved.

In this case, as in claim 6, the pan frame includes a flat portion and a bead portion provided around the flat portion and formed with a bead, and the transmission device is provided in the flat portion. Preferably.
Thus, since the transmission device is provided on the flat surface portion and the bead portion is formed around the flat surface portion, the rigidity of the entire pan frame can be improved without impairing the mounting property of the transmission device.

At this time, as in claim 7, the linear member and the side frame are each welded and fixed to the vertical frame portion, a welding position of the linear member and the vertical frame portion, and the side frame, It is preferable that the welding position with the vertical frame portion is opposed to each other at the same position in the length direction of the vertical frame portion.
Thus, since the linear member, the vertical frame portion, and the side frame are welded at the same position in the length direction of the vertical frame portion, the rigidity at the welding position of the linear member, the vertical frame portion, and the side frame is determined. Can be improved.

At this time, as in claim 8, the folded portion includes a bent portion bent toward the front of the seat from a surface along the rear surface of the seat back frame of the pan frame, and the bent portion. And an extension part extending toward the front of the seat, and the bend part is preferably provided with a bead.
Since it comprises in this way, the rigidity of the folding | turning part of a pan frame lower end is improved.

  According to the vehicle seat of claim 9, the subject is a vehicle seat that can be stored in a storage position formed on a vehicle body floor from a use position, and extends in a vertical direction at a side portion of the seat. A seat back frame comprising a pair of vertical frame portions and a pair of horizontal frame portions respectively connecting the upper end side and the lower end side of the pair of vertical frame portions; and the seat back frame fixed to the seat back frame A pan frame extending in a region partitioned by the linear member, a linear member fixed to one surface of the pan frame and constructed to connect the pair of vertical frame portions, and the use position of the sheet, An input unit to which an operation movement by an operator for moving the seat between the storage position and the movement transmitted to the input unit is transferred between the use position and the storage position. Said sheet and a transmission device for transmitting the movement device for moving the transfer device, be in contact with the linear member, it is solved by.

  Thus, since the transmission device is in contact with the linear member, the rigidity of the linear member is improved, and as a result, the rigidity of the pan frame is improved.

According to the invention of claim 1, since the transmission device is in contact with the linear member, the rigidity of the linear member is improved, and as a result, the rigidity of the pan frame is improved.
According to the invention of claim 2, the rigidity of the lower end portion of the seat back frame is improved.
According to the invention of claim 3, the support rigidity of the side frame can be improved.

According to invention of Claim 4, interference with a side frame and a linear member is suppressed. As a result, workability at the time of assembling the seat back frame, the side frame, and the pan frame can be improved.
According to the invention of claim 5, since the rigidity improving member is configured to protrude with a width smaller than the width from which the reclining device originally provided on the vehicle seat protrudes, The rigidity of one side frame can be improved by the rigidity improving member.

According to the invention of claim 6, since the transmission device is provided on the flat surface portion and the bead portion is formed around the flat surface portion, the entire pan frame can be obtained without impairing the mounting property of the transmission device. Stiffness can be improved.
According to the invention of claim 7, since the linear member, the vertical frame portion, and the side frame are welded at the same position in the length direction of the vertical frame portion, the linear member, the vertical frame portion, and the side frame. The rigidity at the welding position can be improved.

According to invention of Claim 8, the rigidity of the folding | turning part of a pan frame lower end is improved.
According to the invention of claim 9, since the transmission device is in contact with the linear member, the rigidity of the linear member is improved, and as a result, the rigidity of the pan frame is improved.

1 is an external view of a vehicle seat according to an embodiment of the present invention. It is explanatory drawing which shows the use condition of the vehicle seat which concerns on one Embodiment of this invention. It is explanatory drawing which shows the accommodation state of the vehicle seat which concerns on one Embodiment of this invention. It is a figure when the seat frame and leg part of the vehicle seat which concern on one Embodiment of this invention are seen from back. It is the perspective view which looked at the seat back frame of the vehicular seat concerning one embodiment of the present invention from the seat slanting front. It is the perspective view which looked at the seat back frame of the vehicular seat concerning one embodiment of the present invention from the seat slanting back. It is a front view of the seat back frame of the vehicle seat which concerns on one Embodiment of this invention. It is the perspective view which looked at the seat back frame of the vehicle seat which concerns on other embodiment of this invention from diagonally forward.

<< Schematic Configuration of Vehicle Seat According to One Embodiment of the Present Invention >>
Hereinafter, a vehicle seat according to an embodiment of the present invention (hereinafter, this embodiment) will be described with reference to the drawings.
In the following description, the front-rear direction means the front-rear direction (full length direction) of the vehicle, and corresponds to the front-rear direction of the vehicle seat. The width direction means the left-right direction (horizontal width direction) of the vehicle and corresponds to the width direction of the vehicle seat.
Further, the outer side in the width direction is a side near the door of the vehicle on which the seat S is mounted, and the inner side in the width direction is a side away from the door of the vehicle.
Further, the positions, postures, and the like of the respective members described below are the positions, postures, and the like when the vehicle seat is in a use state, that is, a seated state, unless otherwise specified.

  A vehicle seat (hereinafter simply referred to as a seat) S according to the present embodiment constitutes a rear seat of the vehicle. In the present embodiment, two seats are arranged side by side in the width direction as shown in FIG. The two sheets S arranged in the width direction have different widths (lengths in the width direction). In the present embodiment, the width ratio is set to about 4: 6. However, the present invention is not limited to this, and the width ratio can be arbitrarily set, and may be, for example, 5: 5.

  Two seats S arranged in the width direction are each provided with a seating portion S1, and the seating portion S1 includes a seat cushion 1 on which an occupant sits, a seat back 2 that supports the occupant from the back side, and a headrest 3 that supports the occupant's head. Become. Further, as shown in FIG. 2 and the like, a recessed storage space T1 formed in the vehicle body floor T is provided behind each seat S. The interior of the storage space T1 corresponds to the storage position, and each sheet S is configured to be stored in the storage space T1.

  An outline of the storing operation of the seat S is as follows. When the occupant pulls the operation strap St of FIG. 1 as the input unit when the seat S is in the state before storing, that is, in the seatable state shown in FIG. The seat back 2 tilts forward in the direction so that the seat S1 is folded. Thereafter, the folded seat portion S1 moves in the direction of sinking backward in the direction of the arrow A2. Finally, as shown in FIG. 3, the entire sheet S is stored in the storage space T1.

  As shown in FIG. 2, the seat S includes a seat storage mechanism 4 as a moving device under the seating portion S <b> 1 in order to realize the above-described storage operation. The seat storage mechanism 4 is a mechanism for moving the seat S1 toward the storage space T1, and includes a foot link 10 and a rotation link 20 as support legs illustrated in FIG. 2 and the like as main components. ing.

  The foot link 10 is disposed between the vehicle body floor T and the seat cushion 1 and supports the seating portion S1 including the seat cushion 1. The foot link 10 includes a locking mechanism (not shown) at the lower end, and engages with a striker T2 attached on the vehicle body floor T. Since the foot link 10 is engaged with the striker T2, the seat portion S1 is locked in a state where it is positioned at the seatable position. On the contrary, when the engagement state between the foot link 10 and the striker T2 is released, the entire seat S including the seating portion S1 becomes movable and can move toward the storage space T1.

  The engagement state between the foot link 10 and the striker T2 is released by a lock release mechanism (not shown), and the lock release mechanism operates when the seat back 2 tilts forward and reaches a predetermined position.

  The rotation link 20 is a long member, and one end portion (upper end portion) in the extending direction is connected to a seat cushion frame (not shown) that forms the skeleton of the seat cushion 1. Further, the other end portion (lower end portion) in the extending direction of the rotation link 20 is pivotally supported with respect to the vehicle body floor T. Then, in a state where the engagement state between the foot link 10 and the striker T2 is released, the seating portion S1 moves toward the storage space T1 when the rotation link 20 is rotated to tilt backward. . That is, the rotation link 20 rotates with respect to the vehicle body floor T in order to move the seating portion S1 between the seatable position and the storage position.

<< Seatback frame 2a >>
Next, the configuration of the seat back frame 2a that forms the skeleton of the seat back 2 will be described in detail with reference to FIGS.
As shown in FIG. 4, the sheet storage mechanism 4 is provided individually for each of the two sheets S that constitute the rear seat and have different widths. Here, in the seat back frame 2a provided on the sheet S having a short width and the seat back frame 2a provided on the sheet S having a long width, an auxiliary frame member 51s of FIG. Although there is a difference, the basic configuration is the same. Hereinafter, the seat back frame 2a of the seat S having a short lateral width will be mainly described.

The seat back 2 of FIGS. 1 to 3 is configured by placing a known cushion pad on a seat back frame 2a shown in FIGS. 5 to 7 and further covering with a known skin material.
The seat back frame 2 a is a rectangular shape formed by a frame member 51 that forms an outer shape of the seat back 2, side frames 54 and 55 that extend in the vertical direction along the side of the frame member 51, and the frame member 51. A pan frame 60 stretched so as to close the region is a main component.
The frame member 51 is formed of a frame-like body formed by bending a metal pipe and having a substantially rectangular shape. The frame member 51 includes an inner frame portion 51i and an outer frame portion 51o as vertical frame portions extending in the vertical direction inside and outside the vehicle, respectively. And an upper frame portion 51a and a lower frame portion 51b as horizontal frame portions that bridge the upper and lower ends of the inner frame portion 51i and the outer frame portion 51o.

The vehicle outer end portion of the upper frame portion 51a is bent obliquely downward to form an upper outer inclined portion 51c extending obliquely with respect to the upper frame portion 51a and the outer frame portion 51o. Further, the vehicle inner end portion of the upper frame portion 51a is bent obliquely downward at an angle smaller than that of the upper and outer inclined portions 51c, and the upper inner inclined portion 51d extends obliquely with respect to the upper frame portion 51a and the inner frame portion 51i. Is formed.
An inner end portion of the lower frame portion 51b is bent obliquely upward to form a lower inner inclined portion 51e extending obliquely with respect to the lower frame portion 51b and the inner frame portion 51i.

The upper frame portion 51a is crushed at two locations in the length direction, and a pair of brackets 52 for inserting the pair of headrest pillars 31 are welded and fixed to the crushed positions. As shown in FIG. 5, the headrest pillar 31 extends to a position where the lower inner inclined portion 51 e is provided in the seat vertical direction.
In addition, a flat portion 51f that is crushed and has a substantially flat front surface is formed at a position near the upper frame portion 51a of the upper inner inclined portion 51d, and a thin pipe is formed on the upper surface of the flat portion 51f. An elliptical annular body 53 bent into a substantially elliptical annular shape is fixed by welding.

The inner frame portion 51i and the outer frame portion 51o are disposed on the vehicle inner side and the vehicle outer side of the seat back 2, respectively.
Side frames 54 and 55 are welded and fixed to the sheet outer end portions of the inner frame portion 51i and the outer frame portion 51o along the inner frame portion 51i and the outer frame portion 51o, respectively. The side frame 54 is located inside the vehicle and the side frame 55 is located outside the vehicle.
The side frames 54 and 55 are formed by pressing a sheet metal, and plate-like side portions 54a and 55a extending in the front-rear direction of the sheet and front ends of the side portions 54a and 55a are bent toward the inside of the seat. Front edge portions 54b and 55b, and rear edge portions 54c and 55c whose rear ends are bent toward the inner side of the seat, respectively, and the front edge portions 54b and 55b and the side portions 54a and 55a, respectively. The rear edge portions 54c and 55c are arranged so as to wrap around the outer surface of the inner frame portion 51i and the outer frame portion 51o.
As shown in FIGS. 5 to 7, the rear edge portions 54 c and 55 c have substantially rectangular projecting portions 54 cu, 54 cl, 55 cu, and 55 cl that project toward the inner side of the seat on the upper side and the lower side, respectively. The overhang portions 54cu, 54cl, 55cu, and 55cl are sandwiched between the inner frame portion 51i, the outer frame portion 51o, and the pan frame 60, and are fixed by welding to the inner frame portion 51i, the outer frame portion 51o, and the pan frame 60, respectively. Yes.

  Further, the lower ends of the side frames 54 and 55 extend below the frame member 51, and a shaft hole (not shown) is formed at a position below the frame member 51. The shaft hole (not shown) is provided with respect to the seat cushion 1 when the seat back 2 is folded with respect to the seat cushion 1 when the seat S is stored and when the angle of the seat back 2 with respect to the seat cushion 1 is changed. A rotation shaft 56 for rotating the seat back 2 is attached.

A reclining unit L as a reclining device is fixed to a shaft hole (not shown) of the side portion 55a of the side frame 55 outside the vehicle so as to protrude toward the outside of the seat as shown in FIGS. Yes. The reclining unit L is a device for changing the angle of the seat back 2 with respect to the seat cushion 1.
As shown in FIGS. 5 to 7, a rigidity improving member 57 is welded and fixed to the outer surface of the side portion 55 a of the side frame 55 on the vehicle outer side. The rigidity improving member 57 is formed by bending a long single metallic wire into a substantially C shape, and the upper end 57u is welded and fixed near the upper end of the outer surface of the side portion 55a, and the lower end 57l is The side portion 55a is fixed at a position closer to the lower center of the outer surface. In the rigidity improving member 57, a protruding portion 57a between the upper end 57u and the lower end 57l projects vertically from the side portion 55a toward the outside in the left-right direction of the seat as shown in FIG.
The projecting width of the projecting portion 57a from the side portion 55a is slightly smaller than the projecting width of the reclining unit L from the side portion 55a. It is arranged slightly on the left and right inside of the seat from the end on the outside in the left and right direction of the seat.
The side frame 55 outside the seat is sandwiched between the rigidity improving member 57 and the outer frame portion 51o.

The pan frame 60 is made of a substantially metal plate, has an outer shape that is substantially the same as the substantially rectangular shape formed by the frame member 51, and is stretched so as to close the rear surface of the frame member 51. .
The upper part of the pan frame 60 is a part slightly above the upper ends of the side frames 54 and 55, and the part of the frame member 51 from the upper outer inclined part 51c through the upper frame part 51a to the upper inner inclined part 51d. It is fixed by welding.
Further, as shown in FIGS. 6 and 7, the left and right ends of the pan frame 60 are welded and fixed to the rear surfaces of the projecting portions 54cu, 54cl, 55cu, and 55cl of the rear edge portions 54c and 55c of the side frames 54 and 55, as shown in FIGS. Has been.

The lower end side of the pan frame 60 is curved from the rear of the seat toward the front of the seat so as to follow the shape of the rear surface of the cylindrical lower frame portion 51b, and is fixed to the rear surface of the lower frame portion 51b by welding. Yes.
The lower end side of the pan frame 60 extends downward again from the front lower end welded and fixed to the lower frame portion 51 b, and the lower end of the pan frame 60 follows the shape of the rear surface of the columnar rotation shaft 56. Is bent toward the front of the seat, and is fixed to the rear surface of the rotating shaft 56 by welding. On the lower end side of the pan frame 60, the bent portion from the rear of the seat toward the front of the seat is a bent portion of the folded portion of the claims, and the portion of the bent portion extending toward the front of the seat is claimed. Corresponds to the extension of the folded part of the range.
The lower end of the pan frame 60 is located in front of the seat with respect to the rotation shaft 56.
In addition, beads 60b are formed at two positions in a part in the sheet width direction at a position continuous with a position welded and fixed to the lower frame portion 51b on the lower end side of the pan frame 60.

A reinforcing upper linear member 61 and a lower linear member 62 are welded and fixed to the front surface of the pan frame 60 so as to bridge the inner frame portion 51i and the outer frame portion 51o.
The upper linear member 61 and the lower linear member 62 are substantially U-shaped in which both ends 61e and 62e of a cylindrical linear metallic wire are bent at right angles in the same direction. The end portions 61e and 62e are welded and fixed to the inner surface of the inner frame portion 51i and the outer frame portion 51o, respectively.
Further, the linear portions between the both end portions are welded and fixed to the front surface of the pan frame 60 at several places.

Both end portions 61e of the upper linear member 61 are welded and fixed to the inner frame portion 51i and the outer frame portion 51o at positions slightly below the upper ends of the side frames 54 and 55.
The left and right side frames 54 and 55 are also welded and fixed to the inner frame portion 51i and the outer frame portion 51o at the same height as the positions where both end portions 61e are fixed by welding.
Accordingly, the side frames 54 and 55 are welded and fixed to the inner frame portion 51i and the outer frame portion 51o on the outer surface of the seat where the inner surface of the sheet is welded and fixed to the end 61e of the upper linear member 61. Has been.
Further, the upper end 57 u of the rigidity improving member 57 is welded and fixed to the side frame 55 on the inner surface of the side frame 55 on the outer surface of the seat where the inner frame portion 51 i is fixed by welding.
As described above, both the end portions 61e of the upper linear member 61, the side frames 54 and 55, and the upper end 57u of the rigidity improving member 57 are welded and fixed at the same position in the length direction, and the welding fixing position is the same member. Since it is arrange | positioned on the surface inside and outside a sheet | seat, rigidity can be improved.

  Further, both end portions 61e of the upper linear member 61 are formed at the outer frame portions 51o and 51c at positions where the projecting portions 54cu, 54cl, 55cu and 55cl of the rear edge portions 54c and 55c of the side frames 54 and 55 are not formed. It is welded to the inner frame portion 51i. Further, both end portions 62e of the lower linear member 62 are formed between the outer frame portion 51o and the inner frame between the upper and lower protruding portions 54cu and 54cl and 55cu and 55cl of the rear edge portions 54c and 55c of the side frames 54 and 55, respectively. It is welded to the part 51i. Accordingly, interference between the rear edge portions 54c and 55c of the side frames 54 and 55, the upper linear member 61, and the lower linear member 62 is suppressed.

A transmission device for transmitting the operation of the operation strap St by the occupant to the seat storage mechanism 4 on the front surface of the pan frame 60 at a position between the upper linear member 61 and the lower linear member 62 in the center in the length direction. A movable unit 63 is provided.
As shown in FIG. 7, the movable unit 63 includes a reinforcing plate 64 fixed to the front surface of the pan frame 60, a rotating shaft 65 inserted through a shaft hole provided in the reinforcing plate 64 and the pan frame 60, A long plate-like first arm 66 that can rotate about a shaft 65 and an end of the first arm 66 opposite to the rotation shaft 65 are rotatably connected to the first arm 66. A long second arm 67, an operation strap St attached to the end of the second arm 67 opposite to the first arm, and a cable Cb fixed to the outer surface of the first arm 66 in the vicinity of the rotation shaft 65. And.
As shown in FIG. 7, the second arm 67 is passed through an elliptical annular body 53 fixed to the upper frame portion 51a so that the operation strap St protrudes to the upper end of the seat back 2 as shown in FIG. Has been placed.

When the operation strap St is pulled upward by the occupant, the movable unit 63 moves the second arm 67 upward to rotate the first arm 66 clockwise in the front view of FIG. The sheet storage mechanism 4 is operated by pulling the cable Cb fixed around the rotation shaft 65.
The reinforcing plate 64 has a substantially trapezoidal shape in which the upper side 64u and the lower side 64l extend in the sheet width direction, the upper side 64u is in contact with the lower end of the upper linear member 61, and the lower side 64l is in contact with the upper end of the lower linear member 62. Yes.
In addition, the movable unit 63 is provided in a flat portion 68 where no bead is provided in the pan frame 60, and the pan frame 60 is disposed around the reinforcing plate 64 toward the front of the seat from the flat portion 68. A plurality of beads 69 serving as protruding bead portions are provided.

  The upper linear member 61 and the lower linear member 62 intersect the headrest pillar 31 perpendicularly as shown in FIG. The movable unit 63 is disposed at a position sandwiched between the pair of headrest pillars 31 in the seat width direction.

A guide wire member 70 is fixed to the pan frame 60 so as to span between the upper wire member 61 and the lower wire member 62.
The guide wire member 70 has a substantially C-shape in which both end portions 70e of a cylindrical linear metal wire are bent at right angles in the same direction. The upper end portion 70e of the guide linear member 70 is welded and fixed to the front surface of the pan frame 60 so that the lower surface abuts the upper surface of the upper linear member 61, and the lower end portion 70e has a linear upper surface on the lower surface. It is fixed to the front surface of the pan frame 60 by welding so as to contact the lower surface of the member 62.

The linear portion 70s between both ends 70e of the guide linear member 70 has an upper end side and a lower end side in contact with the surface of the upper linear member 61 and the lower linear member 62 on the opposite side of the pan frame 60, A gap corresponding to the thickness of the upper linear member 61 and the lower linear member 62 is arranged between the pan frame 60 and the pan frame 60. That is, the upper linear member 61 and the lower linear member 62 are sandwiched between the pan frame 60 and the linear portion 70 s of the guide linear member 70.
The straight portion 70s is arranged to extend in the vertical direction at substantially the same position as the inner end of the elliptical annular body 53 in the sheet width direction, and when the second arm 67 is attached, 67 serves as a slide guide that slides along.
The first arm 66 is inserted into the gap between the pan frame 60 and the straight portion 70s.

FIG. 8 is a view showing the seat back frame 2a provided on the seat S having a long lateral width among the two seats S constituting the rear seat and having different lateral widths.
In the seat back frame 2a provided on the sheet S having a long lateral width, an auxiliary frame member 51s that bridges the upper frame portion 51a and the lower frame portion 51b is provided, and is sandwiched between the auxiliary frame member 51s and the outer frame portion 51o. The region is the same as the configuration of the seat back frame 2a of the seat S with a short lateral width in FIGS.

A1, A2 Arrow Cb Cable L Reclining unit S Seat (vehicle seat)
S1 Seating part St Operation strap T Car floor T1 Storage space T2 Striker 1 Seat cushion 2 Seat back 2a Seat back frame 3 Headrest 4 Seat storage mechanism 10 Foot link 20 Rotating link 31 Headrest pillar 51 Frame member 51a Upper frame part 51b Lower frame Part 51c Upper outer inclined part 51d Upper inner inclined part 51e Lower inner inclined part 51f Plane part 51i Inner frame part 51o Outer frame part 51s Auxiliary frame member 52 Bracket 53 Elliptical annular bodies 54, 55 Side frames 54a, 55a Side parts 54b, 55b Front edge portion 54c, 55c Rear edge portion 54d, 55d Shaft hole 54cu, 54cl, 55cu, 55cl Overhang portion 56, 65 Rotating shaft 57 Rigidity improving member 57a Projection portion 57l Lower end 57u Upper end 60 Pan frame 60b Bead 61 Upper linear member 62 downward Linear member 61e, 62e, 70e End part 63 Movable unit 64 Reinforcement plate 64l Lower side 64u Upper side 66 First arm 67 Second arm 68 Plane part 69 Bead 70 Guide linear member 70s Linear part

Claims (9)

A seat frame of a vehicle seat that can be stored in a storage position formed on a vehicle body floor from a use position,
A seat back frame comprising a pair of vertical frame portions extending in the vertical direction in the side portion of the seat, and a pair of horizontal frame portions respectively connecting the upper end side and the lower end side of the pair of vertical frame portions;
A pan frame fixed to the seat back frame and extending to an area defined by the seat back frame;
A linear member fixed to one surface of the pan frame and constructed to connect the pair of vertical frame portions;
An input unit to which an operation movement by an operator for moving the sheet between the use position and the storage position of the sheet is transmitted, and the movement transmitted to the input unit is the use position. And a transmission device that transmits to a moving device that moves the sheet between the storage position and the storage position,
A seat frame of a vehicle seat, wherein the transmission device is in contact with the linear member.   The pan frame is fixed to a rear surface of the seat back frame and extends to a lower end of the seat back frame, and a folded portion that is folded back toward the front of the seat below the horizontal frame portion below. The vehicle seat frame according to claim 1, further comprising: A side frame having a side surface extending along the front-rear direction of the seat and a rear end surface extending inward in the seat width direction from the seat rear end portion of the side surface is provided along the vertical frame portion,
The seat frame for a vehicle seat according to claim 1 or 2, wherein at least a part of the rear end surface is sandwiched between the seat back frame and the pan frame.   The seat frame for a vehicle seat according to claim 3, wherein the side frame is disposed so as to avoid the linear member. A pair of the side frames are provided on both sides in the width direction of the seat,
A reclining device that adjusts a backrest angle of a seat back on the outer surface in the seat width direction of one of the side frames of the pair, and a rigidity improving member that is provided at a position different from the reclining device on the surface. Installed, and
5. The vehicle seat according to claim 3, wherein the rigidity improving member protrudes from the surface with a width smaller than a width of the reclining device protruding from the surface of the side frame. flame. The pan frame includes a flat portion, and a bead portion provided around the flat portion and formed with a bead,
The seat frame for a vehicle seat according to any one of claims 1 to 5, wherein the transmission device is provided in the flat portion. The linear member and the side frame are each fixed to the vertical frame by welding,
The welding position between the linear member and the vertical frame portion and the welding position between the side frame and the vertical frame portion are opposed to each other at the same position in the length direction of the vertical frame portion. The seat frame of the vehicle seat according to any one of claims 3 to 6. The folded portion includes a bent portion bent toward the front of the seat from a surface along the rear surface of the seat back frame of the pan frame, and an extension extending toward the front of the seat from the bent portion. And with an exit,
The seat frame for a vehicle seat according to any one of claims 2 to 7, wherein the bend is provided with a bead. A vehicle seat that can be stored in a storage position formed on a vehicle body floor from a use position,
A seat back frame comprising a pair of vertical frame portions extending in the vertical direction in the side portion of the seat, and a pair of horizontal frame portions respectively connecting the upper end side and the lower end side of the pair of vertical frame portions;
A pan frame fixed to the seat back frame and extending to an area defined by the seat back frame;
A linear member fixed to one surface of the pan frame and constructed to connect the pair of vertical frame portions;
An input unit to which an operation movement by an operator for moving the sheet between the use position and the storage position of the sheet is transmitted, and the movement transmitted to the input unit is the use position. And a transmission device that transmits to a moving device that moves the sheet between the storage position and the storage position,
The vehicle seat, wherein the transmission device is in contact with the linear member.

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