JP2007045278A - Lock part structure of front seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock part structure of a front seat which reduces a weight of a vehicle body, and increases strength of a mounting part of a seat lock fitting by reducing a number of part items. <P>SOLUTION: In this lock part structure of a front seat, an engine is mounted below the front seat, and the front seat of the vehicle with an opening for maintaining/checking the engine is fixed on the lower side of the front seat. An engine room comprises: an engine room panel 6 standing upward from a floor of the vehicle body and extending in the right and left direction of the vehicle; and engine room side panels 7, 8 mounted on both sides of the engine room panel 6 and extending in the forward and backward direction of the vehicle. The engine room panel 6 is overlaid and jointed on the engine room side panels 7, 8, and a lock member 18 of the front seat is mounted in the overlaid portion of a joint part 16. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a structure for a lock portion of a front seat of an automobile in which an engine room is disposed under the front seat.

  9 and 10 show the seat mounting portion of the cab-over vehicle. The seat mounting portion is provided with an engine room panel 51 protruding upward from a rear end portion of a front floor panel (not shown), and the engine room front panel 52 is disposed on the front surface of the engine room panel 51. The engine room front panel 52 is connected to the engine room side panels 53 and 54 by joints 57 and 58 at both left and right ends thereof. An engine room rear panel 55 is joined to the rear portions of the engine room side panels 53 and 54 to form an engine room opening 56. The engine room opening 56 is used as a service opening for engine maintenance and inspection.

  A pair of left and right front seats 59 are disposed on the upper portion of the engine room panel 51. Left and right seat rail assemblies 60 and 61 are attached to both sides of the front seat 59 under the seat cushion (not shown) of the front seat 59. As shown in FIG. 11, a seat bracket 62 is attached to the front ends of the seat rail assemblies 60 and 61, and a hinge fitting 63 is attached to the engine room rear panel 55 at the rear end of the front seat 59. The front seat 59 can be rotated backward about the hinge shaft 64 of the hinge fitting 63.

The seat bracket 62 is attached to the lower side of the front end portion of the seat rail assembly 60, 61 at the front of the vehicle, the front end portion extends downward from the front upper end portion of the engine room front panel 52, and the front end portion is bent upward. 68 is formed. On the other hand, the engine room front panel 52 is provided with a mounting portion 69 of a seat lock fitting 66 shown in FIG. A reinforcing plate 65 is attached to the attachment portion 69 of the seat lock fitting 66 as shown in FIG. Further, the seat lock fitting 66 is attached to the inside of the vehicle with respect to the joint portions 57 and 58, and the front seat 59 is fixed to the engine room panel 51 by the frame member 67 being hooked on the hook 68.
Japanese Utility Model Publication No. 63-119180 Japanese Utility Model Publication No.2-122859 JP 2000-16345 A

As described above, the front seat 59 is rotatably attached to the engine room panel 51. In order to fix the front seat 59, a seat lock fitting 66 is attached to the engine room front panel 52, but a reinforcing plate 65 is added to fix the front seat 59. This reinforcing plate 65 was a factor in increasing costs and weight of the vehicle body. In addition, because of the layout of the reinforcing plate 65, the seat rail assembly 61 and the mounting portion 69 of the seat lock metal fitting 66 are arranged so as to be shifted in the vehicle width direction, so that there is a problem that the shape of the seat bracket 62 becomes large.
An object of the present invention is to solve the above-mentioned problems, to reduce the number of parts, to reduce the weight of the vehicle body, and to provide a front seat lock portion structure that can improve the strength of the seat lock fitting mounting portion. To do.

In order to solve the above-mentioned problems, the present invention is a front seat that mounts an engine below the front seat and removably fixes the front seat of the vehicle provided with an engine maintenance / inspection opening below the front seat. The engine room panel includes an engine room panel that rises upward from the floor of the vehicle body and extends in the left-right direction of the vehicle, and an engine room side panel that is attached to both sides of the engine room panel and extends in the front-rear direction of the vehicle. The engine room panel and the engine room side panel are overlapped and joined, and a front seat locking member is attached to the overlapped portion of the joined portion.
Further, the present invention resides in that an end portion of the engine room side panel is bent inward of the vehicle and joined to the engine room panel in the vicinity of a slide rail that enables adjustment of the front and rear position of the seat.
Further, according to the present invention, flanges that are bent toward the opening side are provided at the upper ends of the engine room panel and the engine room side panel, respectively. It is in being overlapped and joined.
Still further, the present invention provides the seat locking member on the center side and the side of the vehicle, and fixes a welding nut for fixing the vehicle center locking member to the engine room panel, The joint portion of the engine room side panel is overlapped so that the engine room panel is positioned on the engine room side, and a welding nut for fixing the lock member on the side side is attached to the engine room panel. There is in being.

According to the present invention, it is possible to attach a lock member to a portion that is superposed and rigid, and does not require a separate reinforcing member (such as phosphorous), thereby reducing cost and weight.
Further, according to the present invention, it is possible to set a rigid overlapped joint in the vicinity of the slide rail, and it is possible to reduce the seat-side bracket (lock counterpart member). Further, by bending the end portion of the engine room side panel inward of the vehicle, the strength of the side panel in the vicinity of the lock member can be improved due to its shape.
Further, according to the present invention, flanges that are bent toward the opening side are provided at the upper ends of the engine room panel and the engine room side panel, respectively, and the flanges are also connected to the overlapping portion to which the lock member is attached. Since they are overlapped and joined, the rigidity of the attaching portion of the lock member is improved by the bending of the joining portion.
Further, according to the present invention, the locking members are provided on the center side and the side of the vehicle for fixing the front seat, and the mounting position accuracy between the locking members is required. Since the is attached, the positional accuracy is improved. Moreover, it is not necessary to pay particular attention to the mounting accuracy of the engine room side panel, and the assembling property is improved.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the front seat lock portion structure of the present invention will be described below with reference to the drawings.
FIG. 1 is a peripheral portion of a vehicle seat employing a front seat locking structure according to the present invention, FIG. 2 is a front perspective view of the seat mounting portion, FIG. 3 is a rear perspective view of the seat mounting portion, and FIG. FIG. 5 is a front view of the seat mounting portion, and FIG. 5 is a plan view of the seat mounting portion.
As shown in FIG. 1, a front floor panel 3 located at the front part of the front seat 2 and a rear floor panel 4 located at the rear part are provided at the front part of the vehicle 1. The engine room panel unit 5 which protrudes upward and forms an engine room is joined to this. As shown in FIG. 6, the engine room panel unit 5 has a front lower end joined to the front floor panel 3, an engine room front panel 6 extended in the width direction of the vehicle 1, and joined to both left and right ends thereof. The engine room side panels 7 and 8 extended to the rear side of the vehicle 1 and the engine room rear panel 9 joined to the rear end side of the engine room side panels 7 and 8 are provided (see FIG. 5).

The engine room front panel 6 is a thick panel with respect to the engine room side panels 7 and 8. As shown in FIG. 7, the joint 16 between the engine room front panel 6 and the engine room side panels 7 and 8 is joined with the engine room side panel 8 (7) side overlapped with the front surface of the engine room front panel 6.
The engine room panel unit 5 mainly forms the front wall of the engine room, and the engine room side panel 7 mainly forms the side wall of the engine room. The joint portion and the vicinity thereof are inclined obliquely with respect to the longitudinal direction of the vehicle. Yes.
The engine room panel unit 5 is formed with a flange 6a projecting toward the rear side of the vehicle body at the upper end of the engine room front panel 6, and with flanges 7a projecting inward in the vehicle width direction at the upper ends of the engine room side panels 7 and 8. 8a is formed. These flanges 6a, 7a. An opening 23 on the lower side of the front seat 2 is formed by 8a and the engine room rear panel 9. An engine (not shown) is mounted directly below the opening 23.

  The front seat 2 disposed in the upper part of the engine room panel unit 5 is composed of a seat back 10 and a seat cushion 11. Seat rail assemblies 12 and 13 (see FIG. 8) shown in FIGS. 4 and 5 are attached to the lower surface of the seat cushion 11. The seat rail assemblies 12 and 13 are members that adjust the position of the front seat 2 in the front-rear direction. For convenience of explanation, the right front seat 2 and its mounting portion will be described. The pair of seat rail assemblies 12, 13 extend in the front-rear direction of the vehicle body at the left and right side portions on the lower side of the seat cushion 11. Seat brackets 14 and 15 are attached to front end portions of the seat rail assemblies 12 and 13.

  The seat bracket 14 located on the center side of the vehicle has a front end bent at a bent (corner) portion formed by the ceiling wall 5a and the front wall 5b of the engine room panel unit 5, and is bent downward. And the hook 14a is formed by curving the tip part upward. On the other hand, the seat bracket 15 located outside the vehicle is disposed in the vicinity of the joint portion 16 of the engine room panel unit 5 and is bent between the ceiling wall 5a and the front wall 5b of the engine room panel unit 5 where the joint portion 16 is located. The hook 15a is formed by bending the tip portion downward and bending the tip portion upward.

As shown in FIG. 2, seat lock fittings 17 and 18 corresponding to the seat brackets 14 and 15 are attached to the front wall 5 b of the engine room panel unit 5. The seat lock fittings 17 and 18 are fixed to through holes 20a and 20b formed in the front wall 5b of the engine room panel unit 5 via bolts 21a and 21b and welding nuts (described later). One seat lock fitting 17 is attached to a through hole 20a formed in the front wall 5b by a bolt 21a and a welding nut (not shown).
The other seat lock fitting 18 is attached to a through hole 20b formed in the joint 16 of the front wall 5b of the engine room panel unit 5 via a bolt 21a. That is, as shown in FIG. 7, the engine room side panel 8 is overlaid on the upper side of the engine room front panel 6, and the seat lock fitting 18 is overlaid on the upper surface thereof. A through hole 20 b is formed in the joint 16, a welding nut 19 is attached to the engine room front panel 6 located on the back side of the joint 16, and a seat lock fitting 18 is attached to the joint 16 by a bolt 21 b and the welding nut 19. ing.
The seat lock fittings 17 and 18 are provided with frame members 17a and 18a, and the frame members 17a and 18a can be hooked and hooked on hooks 14a and 15a of the seat brackets 14 and 15, respectively.
On the rear end side of the seat rail assemblies 12 and 13, a hinge fitting 22 to which the front seat 2 can be rotatably attached is attached, and the hinge fitting 22 is fixed to the rear surface 9 a of the engine room rear panel 9 with a bolt 24. . A cover 25 is attached to the hinge fitting 22.

  With such a configuration, the front seat 2 is fixed to the engine room panel unit 5 by hooking the frame members 17a and 18a of the seat lock brackets 17 and 18 to the hooks 14a and 15a of the seat brackets 14 and 15 and locking them. it can. Further, from the seated posture of the front seat 2, the front seat 2 can be folded by rotating the seat back 10 to the front side a with the rotation shaft 10a of the seat back 10 as an axis. Then, with the front seat 2 being folded, the front end side of the seat cushion 11 is turned to the upper side b as shown in FIG. Can be opened.

In the present embodiment, the seat lock bracket 18 can be attached to the rigid joint 16 in which the engine room front panel 6 and the engine room side panels 7 and 8 are overlapped. Therefore, unlike the conventional case, a separate reinforcing member (such as lymphose) is not required, the cost can be reduced and the vehicle can be lightened, and the mounting rigidity of the front seat 2 is improved, so that the comfort of the passenger is improved. In addition, since there is no joint at the attachment position of the seat lock metal fitting 17 arranged on the center side of the vehicle body, a reinforcing member is required. That is, the seat lock bracket 17 is provided with a reinforcing member having a welding nut attached to the back side of the engine room front panel 6, and the through hole 20 a, the bolt 21 a provided in the engine room front panel 6 and the reinforcing member, and the welding nut. It is attached to the engine room front panel 6.
Since the joint portion 16 to which the seat lock metal fitting 18 is fixed is set in the vicinity of the seat rail 13, the distance between them is shortened, and the shape of the seat bracket 15 can be reduced.

  The force received by the occupant in the seated state of the front seat 2 is transmitted to the vehicle body via the seat rail assemblies 12 and 13. One of the seat lock brackets 17 and 18 is joined to the engine room front panel 6 and the engine room side panels 7 and 8 on the front of the extension line of the seat rail assembly 13 with rigidity. By setting it to 16, no excessive moment is applied to the seat bracket 15 or the seat rail assembly 13 (the moment in the direction in which the seat rail assembly 13 is twisted). Strength can be reduced.

The left and right ends of the engine room front panel 6 and the engine room side panels 7 and 8 mainly form the side wall of the engine room, but the vicinity of the joint 16 is inclined with respect to the longitudinal direction of the vehicle. It is formed as follows. Thereby, the opening 23 and the engine room are narrowed, but the rigidity of the engine room is improved. Since it is formed obliquely, the seat lock fittings 17 and 18 can be arranged in the vicinity of the seat rail assemblies 12 and 13. Moreover, it forms in the inclined surface which becomes a vehicle rear side so that it may become the side of a vehicle over the right-and-left edge part of the front wall 5b of the engine room front panel 6, and the engine room side panels 7 and 8 (refer FIG. 5). Thus, since the corner portion of the engine room is cut out, the seat lock fitting 18 can be disposed in the vicinity of the seat rail assembly 13. Moreover, since the passage of the foot is facilitated, the passengers can get on and off the vehicle.
Furthermore, since the engine room front panel 6 is thicker than the engine room side panels 7 and 8, by attaching the engine room side panels 7 and 8 that require strength to such thick and strong members, The burden on the engine room side panels 7 and 8 is reduced. As a result, the engine room side panels 7 and 8 can be formed with a thin thickness.

While the embodiments of the present invention have been described above, modifications and changes can be made based on the technical idea of the present invention.
For example, in the above embodiment, the front seat 2 is rotated to open the opening 23, but a detachable front seat may be used. In addition, it goes without saying that the present invention can be appropriately modified and implemented within the scope not changing the gist of the present invention.

1 is a perspective view of the vicinity of a vehicle seat that employs a front seat locking structure according to an embodiment of the present invention. It is a perspective view which shows the attachment state of the front part of the front seat shown in FIG. It is a perspective view which shows the attachment state of the rear part of the front seat shown in FIG. It is the front view which looked at the front seat shown in Drawing 1 from the front. It is a top view of the engine room panel part of the state which removed the front seat of FIG. FIG. 6 is an exploded plan view of an engine room front panel and an engine room side panel of the engine room panel of FIG. 5. It is the BB sectional view taken on the line of FIG. It is a side view of the front seat shown in FIG. It is a front view of the lock part structure of the front seat by a prior art example. It is a top view of the state except the front seat of the seat attachment structure by a prior art example. It is a perspective view of the seat lock metal fitting for fixing the front seat of the seat mounting structure by a prior art example. FIG. 10 is a sectional view taken along line AA in FIG. 9.

Explanation of symbols

1 Vehicle 2 Front Seat 5 Engine Room Panel Unit 6 Engine Room Front Panel (Engine Room Panel)
6a, 7a, 8a Flange 7, 8 Engine room side panel 11 Seat cushion 12, 13 Seat rail assembly 14, 15 Seat rail bracket 16 Joint portion 17, 18 Seat lock bracket (lock member)
19 Welding nut 22 Hinge bracket 23 Opening

Claims (4)

In the front seat lock part structure that detachably fixes the front seat of the vehicle with the engine mounted under the front seat and the engine maintenance / inspection opening under the front seat, An engine room panel that extends in the left-right direction of the vehicle and the engine room side panel that is attached to both sides of the engine room panel and extends in the front-rear direction of the vehicle, the engine room panel and the engine room A front seat locking portion structure characterized in that a side seat panel is overlapped and joined, and a front seat locking member is attached to the overlapping portion of the joining portion. The end portion of the engine room side panel on the front side of the vehicle body is bent inward of the vehicle and joined to the engine room panel in the vicinity of a slide rail that enables adjustment of the front and rear position of the seat. 1. Lock structure of the front seat according to 1 At the upper ends of the engine room panel and the engine room side panel, flanges that are bent toward the opening side are provided, and the flanges are also overlapped and joined continuously to the overlapping portion to which the lock member is attached. The front seat lock portion structure according to claim 1, wherein The seat locking member is provided on the center side and the side of the vehicle, a welding nut for fixing the vehicle center locking member is fixed to the engine room panel, and the engine room panel and the engine room side panel are joined. The parts are overlapped so that the engine room panel is positioned on the engine room side, and a welding nut for fixing the lock member on the side is attached to the engine room panel. The front seat lock portion structure according to claim 1.

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