JP5526719B2 - Vehicle seat device - Google Patents

Description

  The present invention relates to a vehicle seat device including a seat back and a headrest supported by the seat back.

  2. Description of the Related Art Conventionally, as a seat device mounted on a vehicle, a device in which a frame member of a seat back is configured by a panel frame is known. Of these, in Patent Document 1 below, an annular bead portion is formed on the panel frame of the seat back, a headrest attachment portion is provided on the annular bead portion, and further, the headrest attachment portion is supported toward the attachment portion of the frame. What formed the bead part is indicated.

  In this way, by forming the bead portion such as the annular bead portion and the support bead portion in the panel frame, it is possible to reduce the thickness while securing the strength of the panel frame. As a result, the weight of the entire seat back is reduced. There is an advantage that you can.

JP 2001-61593 A

  However, if the panel frame is thinned as described above, there is a problem that the support strength of the headrest supported via the headrest mounting portion cannot be sufficiently secured.

  Further, the panel frame described above may be employed in a so-called collapsible type in which the seat back is configured to be able to fall down so that a luggage or the like can be placed on the surface of the seat back.

  Here, when the seat back is made to be a retractable type, generally, a locking device is provided for holding the seat back in an upright state in a normal use state where an occupant is seated, and a part of the locking device is attached to the seat back. Provided.

  Therefore, in this case, in order to hold the seat back in a more stable standing state, it is necessary to sufficiently secure the support strength of the locking device in the seat back.

  It is an object of the present invention to provide a vehicle seat device that can secure the support strength of the headrest and the lock device while reducing the weight of the entire seat back.

The vehicle seat device according to the present invention is a vehicle seat device including a seat back and a headrest supported by the seat back, and is formed on the panel frame of the seat back substantially along a peripheral portion thereof. A reinforcing bead portion having at least a substantially U shape in front view is provided, a reinforcing member having a supporting member for supporting the headrest is attached to the upper portion of the panel frame, and the reinforcing member is connected to the reinforcing bead portion. A locking device for holding the seat back in an upright state with respect to the vehicle body is attached directly to the reinforcing member or at a position close to the reinforcing member, and at least the substantially U-shaped reinforcing bead is attached to the panel frame. And another bead portion, and the substantially U-shaped reinforcing bead portion is a deep drawing component having a bead height higher than that of the other bead portion. The both ends of the substantially U-shaped reinforcing bead in the vehicle width direction are connected to each other via the reinforcing member, and the reinforcing member holds the seat back in an upright state with respect to the vehicle body. And connected to the hinge member via the panel frame .

  According to this configuration, the supporting strength of the locking device in the seat back and the supporting strength of the headrest by the supporting member can be ensured by the substantially U-shaped reinforcing bead portion and the reinforcing member. In this case, since the above-described support strengths can be ensured without providing a special pipe member or the like, the weight of the entire seat back can be reduced.

Further, the effect of reinforcement by the reinforcement bead portion can be further enhanced by the reinforcement member, and the support strength of the lock device and the headrest can be further improved.

  In one embodiment of the present invention, the reinforcing member includes first and second reinforcing members provided with the supporting members for supporting two headrests arranged on the left and right sides in the vehicle width direction, and the panel frame. The locking device is attached to a portion where the first and second reinforcing members are overlapped at a substantially central portion in the upper vehicle width direction.

  According to this configuration, it is possible to improve the support strength of the locking device while having a simple configuration in which two reinforcing members are overlapped.

  In one embodiment of the present invention, an opening corresponding to the locking device is provided at a substantially central portion in the vehicle width direction of the upper portion of the panel frame, and the reinforcing bead portion extends to a position separated from the opening. Is formed.

  For example, considering the case where the reinforcing bead portion is formed so as to extend to the opening corresponding to the locking device, in this case, the effect of reinforcement by the reinforcing bead portion may be reduced due to the fragile end on the opening side. There is.

  According to this structure, since the reinforcement bead part is formed so as to extend to a position separated from the opening part, it is possible to prevent a reduction in the reinforcement effect as described above.

In one embodiment of the present invention, the reinforcing bead portion is formed as a first bead portion deep-drawn into the substantially U shape and the other bead portion at a position overlapping the reinforcing member in a front view. And a second bead portion formed so that a bead height of a portion overlapping with the reinforcing member is lower than that of the first bead portion .

  According to this structure, even if it arrange | positions so that a reinforcement member may overlap with a reinforcement bead part by front view, the thickness of a seat back can be suppressed and the enlargement can be prevented.

  In one embodiment of the present invention, the auxiliary bead portion extending in a direction substantially orthogonal to a virtual line connecting the holding points holding the seat back in an upright state with respect to the vehicle body is provided on the panel frame. A plurality are formed in a region inside the reinforcing bead portion.

  According to this configuration, it is possible to improve the rigidity of a portion that is greatly separated from the holding point that holds the seat back.

In one embodiment of the present invention, the holding point includes the locking device positioned between the support members when viewed from the front, and the hinge members at both lower portions in the vehicle width direction of the seat back.

In an embodiment of the present invention, the auxiliary bead portion extends obliquely toward the side and upward in an internal region of a portion of the reinforcing bead portion that is deep-drawn into a substantially U shape, and the reinforcing bead It is formed in a straight line connecting both sides and the lower part in the vehicle width direction of the portion deep-drawn into a substantially U-shaped part, or in a V shape connecting both sides in the vehicle width direction.

  In one embodiment of the present invention, the panel frame is provided in a seat back of a rear seat provided with a trunk room on the rear side.

  In the seat back of the rear seat, for example, when the seat back is in a lying state, the back surface portion thereof may be used as a placement surface for placing luggage or the like. Therefore, by reinforcing the panel frame with the reinforcing bead portion or the reinforcing member, the durability of the seat back against the load of the load can be improved, and the effect of reinforcement by the reinforcing bead portion or the reinforcing member becomes more remarkable. .

  According to this invention, the supporting strength of the locking device in the seat back and the supporting strength of the headrest by the supporting member can be ensured by the substantially U-shaped reinforcing bead portion and the reinforcing member. In this case, since the above-described support strengths can be ensured without providing a special pipe member or the like, the weight of the entire seat back can be reduced.

Further, the effect of reinforcement by the reinforcement bead portion can be further enhanced by the reinforcement member, and the support strength of the lock device and the headrest can be further improved.

The rear part side view of the vehicle provided with the seat apparatus which concerns on embodiment of this invention. The figure which looked at the internal structure of the seat back from the vehicle front. The figure which looked at the internal structure of the seat back from the vehicle back. XX sectional view taken on the line in FIG. It is a figure which shows the seat apparatus which concerns on other embodiment of this invention, and is the figure which looked at the internal structure of the seat back from the vehicle front. The figure which shows the state which removed the reinforcement plate from the state of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a rear side view of a vehicle V including a rear seat 1 as a seat device according to an embodiment of the present invention. In FIG. 1, a four-door sedan type vehicle V is shown. In the vehicle V, a first row seat (not shown) composed of a driver seat and a passenger seat is disposed. A rear seat 1 as a second row seat is disposed on the rear side of the eye seat. A trunk room 3 whose upper portion is covered with a trunk lid 2 is disposed behind the rear seat 1. In the drawing, the arrow (F) indicates the front of the vehicle body, and the arrow (R) indicates the rear of the vehicle body.

  As shown in FIG. 1, the rear seat 1 is a seat device that includes a seat cushion 10, a seat back 11, and a headrest 12 above a vehicle body floor.

  Among these, the seat back 11 constituting the rear seat 1 is rotated about the rotation shaft 13 so that the seat back 11 is shown in a two-dot chain line in the figure from a standing (normal use) state indicated by a solid line in FIG. It is a retractable seat back that can fall on the cushion 10 side.

  Here, when the seat back 11 of the rear seat 1 is laid down, the back surface portion thereof extends substantially horizontally. As a result, as indicated by a two-dot chain line, it is possible to place the luggage W on the back surface of the seat back 11 as a placement surface.

  Further, a striker 5 for locking the seat back 11 to the vehicle body 4 is provided on the back surface of the seat back 11. On the other hand, on the vehicle body 4 side, when the seat back 11 is in a standing state, the seat back 11 is held in a standing state with respect to the vehicle body 4 by engaging the striker 5 with the engagement claw (not shown). A catch mechanism 6 is provided. In the present embodiment, the above-described striker 5 on the seat back 11 side and the catch mechanism 6 on the vehicle body 4 side constitute a locking device 7 for the seat back 11.

  2 and 3 are views of the internal structure of the seat back 11 as seen from the front and the rear of the vehicle, respectively. FIG. 4 is a cross-sectional view taken along the line XX in FIG. As shown in FIGS. 2 and 3, the rear seat 1 is composed of a right seat 1A and a left seat 1B that are independent from each other. The two right seats 1A and 1B have seat backs 11a and 11b that are independent of each other. And it is possible to surrender.

  Further, in the present embodiment, the length of the left seat 1B is set longer than that of the right seat 1A, and the left seat 1B is integrally formed with a seat cushion and a seat back for the central seat and the left seat. .

  For this reason, a center seat and a left side seat are formed on the left seat 1B, and the left seat 1B is a bench-type seat on which two passengers can be seated in parallel. On the other hand, in the right seat 1A, only the right side seat is formed, and one passenger can be seated. Therefore, the rear seat 1 can be seated by three persons by the respective seats 1A, 1B, and three headrests 12a, 12b, 12c are supported by the seat back 11 corresponding to each occupant.

  However, the present invention is not necessarily limited to the configuration in which the right seat 1A and the left seat 1B have different lengths in the vehicle width direction. For example, the right seat 1A and the left seat 1B are configured symmetrically. The central seat may be formed by the vehicle width direction center side end portions of the two seats 1A and 1B.

  By the way, inside the seat backs 11a and 11b constituting the right and left seats 1A and 1B, metal panel frames 14 and 15 having a substantially rectangular shape are provided.

  The panel frames 14 and 15 are rotatably supported by hinge members 16 to 19 at lower portions at both ends in the vehicle width direction. The hinge members 16 to 19 are connected to the above-described rotation shaft 13, vehicle body attachment plates 16 a, 17 a, 19 a for attaching the rotation shaft 13 to the vehicle body, and vehicle body attachment plates 16 a, 17 a, 19 a by the rotation shaft 13. Rotating plates 16b to 19b that are pivotally supported with respect to the rotating plates 16b to 19b, and hinge brackets 16c to 16b that are connected to the rotating plates 16b to 19b and are joined to the lower portions of both ends of the panel frames 14 and 15 by welding. 19c.

  The seat backs 11a and 11b including the panel frames 14 and 15 are supported by the hinge members 16 to 19 so as to be rotatable, and can thereby fall down on the seat cushion 10 side.

  Further, as shown in FIGS. 2 and 3, each of the panel frames 14 and 15 is formed by pressing (deep drawing) substantially along the both sides in the vehicle width direction and the lower peripheral edge. The first bead portions 14a and 15a are substantially U-shaped.

  The panel frames 14 and 15 are formed with second bead portions 14b and 15b that connect both end portions of the first bead portion 14a and both end portions of the first bead portion 15a so as to extend in the vehicle width direction. . In the panel frames 14 and 15, the first and second bead portions 14 a, 15 a, 14 b, and 15 b form a bead portion that has a substantially annular shape when viewed from the front.

  Here, as shown in FIG. 4, the first and second bead portions 14 a and 14 b are formed so that the front side of the panel frame 14 becomes a convex portion, and the first and second bead portions of the panel frame 15. Similarly, 15a and 15b are formed so that the front side of the panel frame 15 is a convex portion. The bead height of the first and second bead portions 14a, 15a, 14b, and 15b, that is, the amount of forward protrusion of the vehicle, is greater in the second bead portions 14b and 15b than in the first bead portions 14a and 15a. It is set low (projection amount is small).

  In addition, in the inner region of the first and second bead portions 14a, 15a, 14b, and 15b, that is, in the inner region of the panel frames 14 and 15 surrounded by the first and second bead portions 14a, 15a, 14b, and 15b. Are obliquely extended sideways and upward, and a plurality of linear or V-shaped third bead portions 14c,..., 15c,. Is formed.

  Reinforcing panels 20 and 21 extending in the vehicle width direction are attached to the upper portions of the front sides of the panel frames 14 and 15 so as to overlap the second bead portions 14b and 15b in a front view. The reinforcing panels 20 and 21 are spot-welded to the panel frames 14 and 15 over a plurality of locations in the vehicle width direction, and are connected to each other.

  In FIG. 2, the joining points of the panel frames 14 and 15 and the reinforcing panels 20 and 21 are indicated by crosses. In this embodiment, as shown in FIG. 2, both end portions of the first bead portions 14a and 15a. The joint point is set to. That is, in the present embodiment, both end portions of the first bead portion 14a and both end portions of the first bead portion 15a are connected via the reinforcing panels 20 and 21, respectively.

  Here, in the upper part of the panel frame 14, two headrest support members 22 for supporting the headrest 12a for the right side seat are attached to the flat surface portion 20a formed on the reinforcing plate 20 by welding.

  The headrest support member 22 is a tubular pipe member. By inserting two stays 23 attached to the lower end of the headrest 12a into the respective hollow portions, the headrest 12a is seat-backed as shown in the figure. It is supported at a predetermined position above 11a.

  On the other hand, at the upper part of the panel frame 15, two headrest support members 24, 25 for supporting the headrests 12b, 12c for the central seat and the left side seat are welded to the flat portion 21a formed on the reinforcing plate 21 by welding. It is installed one by one.

  The headrest support members 24 and 25 are also pipe members of the same type as the headrest support member 22, and by inserting two stays 26 and 27 attached to the lower ends of the headrests 12b and 12c into the respective hollow portions, As illustrated, the headrests 12b and 12c are supported at predetermined positions above the seat backs 11b and 11c.

  Moreover, the striker 5 which comprises the locking device 7 mentioned above is attached to the panel frame 14 in the position close | similar to the reinforcement plate 20, as shown in FIG.

  As shown in FIGS. 1 and 4, the striker 5 is a substantially U-shaped member in a side view, and upper and lower end portions of the striker 5 are welded to the panel frame 14 between the headrest support members 22. (See FIGS. 2 and 4).

  Moreover, in the panel frame 14, the slit-shaped opening part 29 as shown to FIG. 3, FIG. 4 is formed in the middle of the 2nd bead part 14b corresponding to the position of the striker 5. FIG. The striker 5 penetrates through the opening 29 and protrudes rearward from the back surface portion of the seat back 11a.

  On the other hand, also in the panel frame 15, the striker 5 is attached at a position close to the reinforcing plate 21, and upper and lower end portions thereof are attached to the panel frame 15 between the headrest support members 24 and 25, and a mounting bracket 30. (See FIG. 2).

  And in the panel frame 15, the slit-shaped opening part 31 as shown in FIG. 3 corresponding to the position of the striker 5 is formed in the middle of the 2nd bead part 15b. The striker 5 penetrates through the opening 31 and protrudes rearward from the back surface portion of the seat back 11b.

  The degree of “proximity” mentioned here is preferably close to the extent that the reinforcing plates 20 and 21 overlap the striker 5 in a front view as shown in FIGS. 2 and 4, for example.

  By the way, in the right seat 1A, the seat back 11a is held at three points mainly by the hinge members 16 and 17 at the lower portions at both ends in the vehicle width direction and the lock device 7 including the striker 5 in the standing state. The third bead portion 14c described above is an imaginary line α (a thick two-dot chain line in FIGS. 2 and 3) connecting the holding points (the hinge members 16 and 17 and the locking device 7) holding the seat back 11a. It is extended in a direction substantially orthogonal to.

  Also in the left seat 1B, the seat back 11b is held at three points mainly by the hinge members 18 and 19 and the lock device 7 at both lower portions in the vehicle width direction in the standing state. The third bead portion 15c described above has a virtual line β (two-dot chain line in FIGS. 2 and 3) connecting the holding points (the hinge members 17 and 18 and the locking device 7) holding the seat back 11b. It is extended in a direction substantially orthogonal to.

  In the present embodiment, the reinforcing plates 20 and 21 are connected to the first bead portions 14a and 15a having a substantially U shape on the panel frames 14 and 15, and the headrest supporting members 22, 24 and 25 are connected to the reinforcing plates 20 and 21. By attaching the headrest, it is possible to secure the support strength of the headrests 12a to 12c by the headrest support members 22, 24, and 25.

  Further, by arranging the striker 5 constituting the locking device 7 in the vicinity of the reinforcing plates 20 and 21, the locking device 7 in the seat backs 11a and 11b is provided by the first bead portions 14a and 15a and the reinforcing plates 20 and 21. The supporting strength can be ensured.

  In this case, since the above-described support strengths can be ensured without providing a special pipe member or the like, the overall weight of the seat back 11 can be reduced.

  Further, since the substantially annular beads are formed by the first and second bead portions 14a, 14b, 15a, and 15b, the reinforcing portions of the panel frames 14 and 15 can be formed without interruption at the peripheral portions thereof. Thereby, each support strength mentioned above can further be improved.

  In addition, regarding the second bead portions 14b and 15b, the height of the beads is set lower than that of the first bead portions 14a and 15a, so that the reinforcing plates 20 and 21 are connected to the second bead portions 14b and 14b as in the present embodiment. Even if it arrange | positions so that it may overlap with 15b by a front view, the thickness of the seat back 11 can be suppressed and the enlargement can be prevented.

  Further, the first bead portion 14a is attached by attaching the reinforcing plate 20 (reinforcing plate 21) so as to connect both ends of the first bead portion 14a (first bead portion 15a) having a relatively high bead height. , 15a can be further enhanced by the reinforcing plates 20 and 21, and the above-described support strengths can be further improved.

  By the way, in the above-mentioned Patent Document 1, the panel frame is thinned by providing the annular bead portion, the headrest mounting portion, and the support bead portion, and thus the overall weight of the seat back is reduced. If the headrest support member is directly attached to the panel frame by a method such as arc welding, there is a disadvantage that a hole is formed in the panel frame during welding, making it difficult to attach the headrest support member. There is a risk of becoming.

  On the other hand, in this embodiment, the headrest support members 22, 24, 25 are attached to the steel plate reinforcing plates 20, 21 connected to the metal (steel plate) panel frames 14, 15 by spot welding. Therefore, there is an advantage that joining by welding can be easily performed.

  Further, third bead portions 14c and 15c extending in a direction substantially orthogonal to virtual lines α and β connecting holding points (hinge members 16 to 19 and locking device 7) for holding the seat backs 11a and 11b in an upright state. As a result, the rigidity of the part greatly separated from the holding point can be improved. For this reason, for example, even if a large moment acts on the upper ends of both ends of the panel frames 14 and 15 in the vehicle width direction, the bending of the panel frames 14 and 15 can be effectively suppressed.

  Further, by providing the above-described panel frames 14 and 15 in the seat back 11 of the rear seat 1 in which the trunk room 3 (see FIG. 1) is disposed at the rear, the seat back 11 is put in a lying state as shown in FIG. When the back surface portion is used as a placement surface on which the luggage W is placed, durability against the load of the luggage W can be improved. For this reason, in the rear seat 1 provided in the sedan-type vehicle V, the effect of reinforcing the panel frames 14 and 15 of the seat back 11 by the first bead portions 14a and 15a and the reinforcing plates 20 and 21 is more remarkable. It can be said that

  Further, since the striker 5 of the locking device 7 is attached to the seat back 11 side, the sizes of the openings 29 and 31 of the panel frames 14 and 15 are such that the striker 5 can be penetrated as shown in FIG. Can be kept small. For this reason, the second bead portions 14 b and 15 b are not interrupted by the openings 29 and 31, and a substantially annular bead can be easily formed in the panel frames 14 and 15.

  By the way, this invention is not necessarily limited to providing a locking device close to a reinforcement plate like embodiment mentioned above in FIGS. 1-4. For example, as shown in FIGS. 5 and 6, a locking device (here, a catch mechanism 56 indicated by a two-dot chain line in the drawing) may be directly attached to the reinforcing plates 70 and 71.

  FIG. 5 is a view of the internal structure of a seat back 61 according to another embodiment of the present invention as viewed from the front of the vehicle, and FIG. 6 is a view showing a state in which the reinforcing plates 70 and 71 are removed from the state of FIG. It is. In FIGS. 5 and 6, the same components as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

  In the embodiment shown in FIGS. 5 and 6, as in the first embodiment shown in FIGS. 1 to 4, the panel frame 65 of the seat back 61 is formed substantially along both side portions and the lower peripheral portion. It has the 1st bead part 65a which makes a substantially U shape in front view, and the 2nd bead part 65b formed in the vehicle width direction formed so that the both ends of this 1st bead part 65a may be tied. In the panel frame 65, a substantially annular bead portion is formed by the first and second bead portions 65b.

  The bead height of the first and second bead portions 65a and 65b is set to be lower in the second bead portion 65b than in the first bead portion 65a.

  In the panel frame 65, a plurality of third bead portions 65c,... Corresponding to the third bead portion 15c are formed in regions inside the first and second bead portions 65a, 65b.

  By the way, when the striker 5 is attached to the seat back 11 side as in the first embodiment described above, the striker 5 stands up as shown by a two-dot chain line in FIG. It becomes a state. For this reason, when trying to place an article larger than the luggage W on the back surface portion of the seat back 11, the striker 5 may be in the way.

  Therefore, in this embodiment, the striker (not shown here) constituting the locking device is attached to the vehicle body side, while the catch device 56 is attached to the seat back 61 side. An opening 81 corresponding to the catch mechanism 56 is formed in the upper portion of the panel frame 65 at a substantially central portion in the vehicle width direction.

  In the present embodiment, first and second reinforcing plates 70 and 71 corresponding to the reinforcing plate 21 of the first embodiment are attached to the upper part of the front side of the panel frame 65.

  Reinforcing plates 70 and 71 are bent at the ends of panel frame 65 on the center side in the vehicle width direction, and the ends thereof are flange portions 70b and 71b extending forward of the vehicle. The reinforcing plates 70 and 71 are integrated by overlapping the flange portions 70b and 71b and connecting each other.

  Here, the catch mechanism 56 described above is attached to a portion where the flange portions 70b and 71b overlap using a connecting member such as a bolt or a nut.

  The panel frame 65 shown in FIGS. 5 and 6 corresponds to the panel frame 15. For example, the reinforcing plate 70 is a plane for attaching a headrest support member for supporting the headrest for the central seat. While the portions 70a and 70a are formed, the reinforcing plate 71 is formed with flat portions 71a and 71a for attaching a headrest support member for supporting the headrest for the left seat.

  As described above, in the present embodiment, since the two reinforcing plates 70 and 71 are provided and the catch mechanism 56 is attached to a portion where the two reinforcing plates 70 and 71 are overlapped, the simple configuration of overlapping the reinforcing plates 70 and 71 is simple. Although it is a structure, the support strength of the locking device (catch mechanism 56) can be improved.

  Further, considering the case where the second bead portion 65b is formed so as to extend to the opening portion 81 corresponding to the catch mechanism 56, in this case, the end portion on the opening portion 81 side becomes fragile, so that the second bead portion 65b is formed. Although the effect of reinforcement by the portion 65b may be reduced, in the present embodiment, as shown in FIG. 6, the second bead portion 65b is formed so as to extend to a position separated from the opening portion 81. Such a decrease in the reinforcing effect can be prevented.

In correspondence between the configuration of the present invention and the above-described embodiment,
The substantially U-shaped reinforcing bead portion of the present invention corresponds to the first bead portions 14a, 15a, 65a,
Similarly,
The reinforcing members correspond to the reinforcing plates 20, 21, 70, 71,
The second reinforcing member corresponds to the reinforcing plates 70 and 71,
The auxiliary bead portion corresponds to the third bead portion 14c, 15c, 65c,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.
For example, in the above-described embodiment, the locking device is attached to the substantially central portion of the panel frame in the vehicle width direction. Instead, the locking device is directly attached to the reinforcing plate at the side of the panel frame in the vehicle width direction, or You may attach in the position close | similar to this reinforcement plate.

DESCRIPTION OF SYMBOLS 1 ... Rear seat 3 ... Trunk room 7 ... Locking device 11, 11a, 11b, 61 ... Seat back 14, 15, 65 ... Panel frame 14a, 15a, 65a ... 1st bead part 14b, 15b, 65b ... 2nd bead part 14c, 15c, 65c ... 3rd bead parts 16-19 ... Hinge members 20, 21, 70, 71 ... Reinforcement plates 22, 24, 25 ... Headrest support member 81 ... Opening

Claims (8)

A vehicle seat device comprising a seat back and a headrest supported by the seat back,
A panel frame of the seat back is provided with at least a substantially U-shaped reinforcing bead portion in front view formed substantially along the peripheral edge portion thereof,
At the top of the panel frame, a reinforcing member having a supporting member for supporting the headrest is attached, and the reinforcing member is connected to the reinforcing bead portion.
A locking device that holds the seat back in an upright state with respect to the vehicle body is attached directly to the reinforcing member or at a position close to the reinforcing member ,
The panel frame is provided with at least the substantially U-shaped reinforcing bead part and another bead part,
The substantially U-shaped reinforcing bead portion is deep drawn with a bead height higher than the other bead portions,
The both ends of the substantially U-shaped reinforcing bead portion in the vehicle width direction are connected via the reinforcing member,
The vehicle seat device , wherein the reinforcing member is separated from a hinge member that holds the seat back in an upright state with respect to the vehicle body, and is connected to the hinge member via the panel frame . The reinforcing member includes first and second reinforcing members provided with the supporting member for supporting two headrests arranged on the left and right in the vehicle width direction,
The vehicle seat device according to claim 1, wherein the locking device is attached to a portion where the first and second reinforcing members are overlapped at a substantially central portion in the vehicle width direction of the upper portion of the panel frame. An opening corresponding to the locking device is provided at a substantially central portion in the vehicle width direction at the top of the panel frame,
The vehicle seat device according to claim 2, wherein the reinforcing bead portion is formed to extend to a position separated from the opening. The reinforcing bead portion includes a first bead portion that is deep-drawn into the substantially U shape,
As the other bead portion, and forming at a position overlapped with the reinforcing member and the front view, the bead height of the portion overlapping the reinforcing member and the second bead portion formed so as to be lower than the first bead portion the vehicle seat device according to any one of <br/> claims 1-3 having. An auxiliary bead portion extending in a direction substantially orthogonal to an imaginary line connecting holding points that hold the seat back in an upright state with respect to the vehicle body is provided in an area inside the panel frame from the reinforcing bead portion. The vehicle seat device according to any one of claims 1 to 4, wherein a plurality of the vehicle seat devices are formed. The locking device in which the holding point is located between the support members in a front view;
It consists of the said hinge member of the vehicle width direction both ends lower part of the said seat back
The vehicle seat device according to claim 5. The auxiliary bead portion extends obliquely toward the side and upward in the inner region of the portion of the reinforcing bead portion that is deep-drawn into a substantially U shape,
The reinforcing bead portion is formed in a straight line connecting both sides and the lower part of the vehicle width direction of the portion deep-drawn into a substantially U shape, or a V shape connecting both sides of the vehicle width direction.
The vehicle seat device according to claim 5 or 6. The vehicle seat device according to any one of claims 1 to 7, wherein the panel frame is provided in a seat back of a rear seat provided with a trunk room on the rear side.

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