JP2006264577A - Seat mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat mounting structure capable of fastening a mounting tool in the condition that a fastening tool is directed aslant, precluding the seat from constituting obstacle even if fastening is made in the condition that the seat is raised up, enhancing the easiness to execute the seat mounting operation, and mounting the seat stably. <P>SOLUTION: The seat mounting structure is configured so that a folding rear seat 2 capable of being held in the upright attitude upon rotating round a rotary shaft installed in the lower part ahead of a seat cushion 3 in the condition that a seat back 4 is folded up on the seat cushion 3 is mounted on a floor panel 1 through a metal fixture 7 for coupling to the rotary shaft, wherein the metal fixture 7 is furnished with a rear fastening part 14 and a folded part 15 on the back of the rear seat 2 in the upright attitude, and on the top surface of the folded part 15, a rear mounting surface 15a is formed inclined downward to the back of the vehicle from ahead of the vehicle. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a folding seat mounting structure capable of maintaining a standing posture by rotating a seat back on a seat cushion and turning the vehicle forward about a rotation shaft.

As shown in FIGS. 8 (A) to (C), a rear seat 2 is disposed on a flow panel 1 on the rear side of the interior of an automobile, and the rear seat 2 has a seat back 4 and a hinge shaft 5 when not in use. The seat cushion 3 and the seat back 4 in a folded state are folded around the seat cushion 3 by rotating in the direction of the arrow Z, and the hinge shaft 6 serving as a pivot shaft provided at the lower front portion of the seat cushion 3. It is configured as a foldable seat that can be raised by rotating in the direction of arrow Y in front of the vehicle.
Such a rear seat 2 is attached to the floor panel 1 via a fitting 7 that is connected to the hinge shaft 6 by a hinge member 21 (see, for example, Patent Document 1). The mounting bracket 7 is often attached to the step portion 22 at the upper corner of the floor panel 1 located at the lower front portion of the seat cushion 3 as shown in FIGS. 8C and 9. For this reason, the mounting bracket 7 is formed in a substantially L-shaped cross section. By tightening the mounting bracket 7 to the horizontal upper surface 22a and the vertical front surface 22b of the stepped portion 22 with the bolts 23, the rear seat 2 is attached to the mounting bracket 7, It is fixed via the hinge shaft 6 and the hinge member 21.

JP 11-115591 A

  However, in the conventional seat mounting structure described above, when the bolt 23 on the side of the horizontal upper surface 22a of the stepped portion 22 is tightened, the tightening tool is disposed directly above the horizontal upper surface 22a with the rear seat 2 raised. Therefore, it is necessary to bring the tightening tool close to the bottom surface of the seat cushion 3, and there is a possibility that the mounting work becomes complicated due to interference of the tightening tool with the seat cushion 3. Further, when tightening the bolt 23 on the vertical front surface 22b side of the stepped portion 22, it is necessary to turn the tightening tool in the horizontal direction. Therefore, when the distance to the front seat is small, it is difficult to tighten the bolt 23, and workability is improved. There was a problem.

  On the other hand, if the horizontal end of the mounting bracket 7 arranged on the horizontal upper surface 22a side is extended in order to improve the mounting workability, the material cost may increase or the layout of the rear seat 2 or the like may be hindered. It was. In addition, if it is too far from the hinge shaft 6, there is a problem that the rear seat 2 cannot be stably attached.

  The present invention has been made in view of such a situation, and the object thereof is to enable the fixture to be tightened with the tightening tool inclined at an angle, and even when the seat is erected in a standing state. It is an object of the present invention to provide a seat mounting structure that can improve seat mounting workability without causing the seat to interfere, and can stably mount the seat.

  In order to solve the above-described problems of the prior art, the present invention is a standing posture in which the seat back is folded on the seat cushion and rotated around a pivot shaft provided at the lower front portion of the seat cushion. In a seat mounting structure in which a foldable seat capable of holding a seat is attached to a floor panel via a fixture connected to the rotating shaft, the fixture has an upright posture of the seat. A tightening portion is provided on the rear side, and a mounting surface inclined downward from the front of the vehicle to the rear of the vehicle is formed on the upper surface of the tightening portion.

In the present invention, the floor panel is formed with an inclined surface portion corresponding to the mounting surface, and the tightening portion of the fixture is arranged so as to overlap the inclined surface portion.
In the present invention, a stud bolt protruding obliquely upward toward the rear of the vehicle is provided on the inclined surface portion of the floor panel, and the stud bolt is inserted through the mounting surface in the tightening portion of the fixture. A bolt hole is provided, and the tightening portion of the fixture is fixed to the inclined surface portion of the floor panel by tightening the nut with the stud bolt inserted through the bolt hole.

  Further, in the present invention, the fixture is provided with a fastening portion on the front side of the seat in a standing posture, and the upper surface of the fastening portion is inclined downward from the rear of the vehicle toward the front of the vehicle. The mounting surface is formed.

  In the seat mounting structure according to the present invention, the seat back can be folded on the seat cushion, and can be rotated around a pivot shaft provided at the lower front portion of the seat cushion to maintain a standing posture. A foldable seat is attached to the floor panel via a fixture connected to the pivot shaft, and the fixture has a fastening portion on the rear side of the seat in a standing posture. Since a mounting surface that is inclined downward from the front of the vehicle to the rear of the vehicle is formed on the upper surface of the tightening portion, the mounting tool can be mounted with a tightening tool such as a spanner or screwdriver obliquely directed. Can be tightened. Therefore, according to the mounting structure of the present invention, the sheet does not get in the way even if the tightening tool is tightened against the mounting tool in a state where the sheet is raised, and the sheet can be mounted quickly and reliably. It is possible to improve the mounting workability.

  Further, in the present invention, the floor panel is formed with an inclined surface portion corresponding to the mounting surface, and the tightening portion of the fixture is arranged so as to overlap the inclined surface portion. It becomes possible to fix the fixture firmly, and the seat can be stably attached.

  Further, in the present invention, a stud bolt that protrudes obliquely upward toward the rear of the vehicle is provided on the inclined surface portion of the floor panel, and the stud bolt is inserted through the mounting surface in the tightening portion of the fixture. A bolt hole is provided, and by tightening the nut in a state where the stud bolt is inserted into the bolt hole, the tightening portion of the fixture is fixed to the inclined surface portion of the floor panel. Positioning can be easily performed, and screwing of the nut to the stud bolt is simplified, so that the mounting workability can be further improved.

  In the present invention, the fixture is provided with a tightening portion on the front side of the seat in a standing posture, and the upper surface of the tightening portion is inclined downward from the rear of the vehicle toward the front of the vehicle. Therefore, the mounting tool can be easily positioned, and the seat can be more securely and stably attached to the floor panel via the mounting tool.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
FIG. 1 is a perspective view of a rear seat mounted by a mounting structure according to an embodiment of the present invention. FIG. 2 is a perspective view of a vehicle floor panel to which the seat mounting structure according to the embodiment of the present invention is applied. FIG. 4 is a perspective view of the rear seat in FIG. 1 attached to the floor panel as viewed from the front of the vehicle, FIG. 4 is a perspective view of the rear seat in FIG. 1 attached to the floor panel as seen from the rear of the vehicle, and FIG. FIG. 6 is a cross-sectional view of part A in FIG. 4, FIG. 6 is a cross-sectional view of part B in FIG. 4, and FIG. 7 is a perspective view of a mounting bracket used in the mounting structure according to the embodiment of the present invention.

As shown in FIG. 1, a bench-type rear seat 2 is disposed on the floor panel 1 located on the rear side of the interior of the automobile in the present embodiment. The rear seat 2 includes a seat cushion 3 on which an occupant is seated, and a seat back 4 that receives the back of the seated occupant, and is configured as a foldable seat in which the seat cushion 3 and the seat back 4 can be folded. ing. That is, when the rear seat 2 of the present embodiment is not in use, the seat back 4 is rotated around the hinge shaft (not shown) and folded on the seat cushion 3, and in this folded state, the lower front portion of the seat cushion 3 is folded. By rotating the seat cushion 3 and the seat back 4 forward of the vehicle around a hinge member (not shown) as a pivot shaft provided on the vehicle, it is possible to maintain a standing posture.
When mounting such a rear seat 2 on the production line, the seat provided on the floor panel 1 with the seat cushion 3 and the seat back 4 folded in a standing posture with the front end portion of the seat cushion 3 facing downward. It is installed on the cross member 8 and fixed by tightening via a plurality of mounting brackets 7.

As shown in FIGS. 2 to 6, the seat cross member 8 is disposed on the floor panel 1 located at the front end of the seat cushion 3 and extends along the vehicle width direction. An inclined portion 9 that is inclined downward from the rear of the vehicle toward the front of the vehicle is formed on the front side of the seat cross member 8, and a horizontal portion that extends toward the rear of the vehicle on the rear side of the seat cross member 8. 10 is formed.
A plurality of welding nuts 19a that are screwed with fastening bolts 20 for attaching the mounting bracket 7 are fixed to the rear surface side of the inclined portion 9 with a certain interval in the vehicle width direction. For this reason, a bolt hole 9a into which the tightening bolt 20 is inserted is formed in the inclined portion 9 at a position corresponding to the welding nut 19a.
Further, the horizontal portion 10 is provided with a plurality of convex portions 11 formed in a substantially triangular shape in a side view at a predetermined interval in the vehicle width direction at a position corresponding to the mounting location of the mounting bracket 7. These convex portions 11 are provided with an upward rear inclined surface portion 11a corresponding to an attachment surface (described later) of the mounting bracket 7, and the rear inclined surface portion 11a descends from the front of the vehicle toward the rear of the vehicle. It is formed with an inclination. In addition, the rear inclined surface portion 11a is provided with stud bolts 12 projecting obliquely upward from the rear surface side of the seat cross member 8 toward the rear of the vehicle via the through holes 12a, and the rear inclined surface portion 11a A nut 19b is screwed onto the tip of the stud bolt 12 protruding from the surface so as to be tightened. Two protrusions 11 and stud bolts 12 are used for one mounting bracket 7.

On the other hand, as shown in FIG. 1, FIG. 3 and FIG. 4, the mounting bracket 7 is arranged at a constant interval in the vehicle width direction, and is connected to a hinge member (not shown). It can be attached to the seat cushion 3 via. For this reason, the mounting bracket 7 includes a front tightening portion 13 and a rear tightening portion 14 that are bent to correspond to the seat cross member 8 as shown in FIGS.
The front tightening portion 13 of the mounting bracket 7 is provided on the vehicle front side of the rear seat 2 in a standing posture, and the upper surface thereof has a substantially central portion of the mounting bracket 7 from the rear of the vehicle toward the front of the vehicle. A downward mounting front mounting surface 13a that is more obliquely downward is formed. An inverted U-shaped notch 13b into which the fastening bolt 20 is inserted is formed at the front end side central portion of the front mounting surface 13a.

Further, the rear tightening portion 14 of the mounting bracket 7 is provided on the vehicle rear side of the rear seat 2 in the standing posture, and bent portions 15 that protrude upward are formed on the left and right sides thereof. . The bent portion 15 is formed in a shape corresponding to the convex portion 11 provided on the horizontal portion 10 of the seat cross member 8, and on the upper surface located at the rear, the rear side is inclined downward from the front of the vehicle toward the rear of the vehicle. A mounting surface 15a is formed, and a bolt hole 15b through which the stud bolt 12 is inserted is formed in the rear mounting surface 15a.
The seat cross member 8 is provided with a plurality of hooks 17 for positioning or temporarily fixing the mounting bracket 7, and each mounting bracket 7 has a locking hole 18 into which the hook 17 is inserted. Yes.

Next, the case where the foldable rear seat 2 is attached to the floor panel 1 by the attachment structure of the embodiment of the present invention will be described.
First, the mounting bracket 7 is connected to the hinge member (not shown) of the seat cushion 3 of the rear seat 2. Then, the seat cushion 3 and the seat back 4 are folded, and the locking hole 18 of the mounting bracket 7 is hooked on the hook 17 of the seat cross member 8 in a standing posture with the front end portion of the seat cushion 3 facing downward. The stud bolt 12 is inserted into the through hole 12 a of the seat cross member 8 and the bolt hole 15 b of the mounting bracket 7. In this state, the rear seat 2 can be temporarily held on the floor panel 1 side. Even if the hook 17 and the locking hole 18 are omitted, the rear seat 2 can be temporarily held only by the stud bolt 12.

Next, the nut 19b is screwed into the stud bolt 12 to fasten the rear tightening portion 14, and the tightening bolt 20 is inserted from the notch 13b and the bolt hole 9a and screwed into the welding nut 19a to be screwed into the front tightening portion. Tighten 13. Here, in a state where the bent portion 15 of the mounting bracket 7 is placed on the convex portion 11 of the seat cross member 8 and overlapped, the rear seat 2 is positioned, and the rear seat 2 may be shifted in the vehicle front-rear direction and the width direction. No. Moreover, the rear mounting surface 15a of the bent portion 15 in the rear tightening portion 14 of the mounting bracket 7 is formed as a downwardly inclined surface, and the stud bolt 12 protrudes obliquely upward toward the rear of the vehicle. When tightening, the tightening tool can be tightened obliquely from the rear of the vehicle, and the tightening tool does not interfere with the seat cushion 3. Further, since the front mounting surface 13a of the mounting bracket 7 is placed on the inclined portion 9 of the seat cross member 8, the tightening tool can be tightened obliquely downward from the front of the vehicle, and the tightening tool is There is no interference with the front seat.
If the mounting bracket 7 is fixed in this way, the rear seat 2 is mounted on the floor panel 1 via the mounting bracket 7 or the like.

  Therefore, according to the embodiment of the present invention, the convex portion 11 having the upward rear inclined surface portion 11 a is formed on the seat cross member 8, and the rear tightening portion 14 of the mounting bracket 7 is provided behind the downward inclined surface. A bent portion 15 having a side mounting surface 15a is formed, the bent portion 15 is placed on the convex portion 11 and overlapped, and a nut 19b is fastened to a stud bolt 12 protruding obliquely upward toward the rear of the vehicle. Therefore, the rear seat 2 in the standing posture can be positioned at a predetermined position on the floor panel 1, and the seat cushion 3 of the rear seat 2 does not get in the way even if the tightening tool is tightened in this standing state. The rear seat 2 can be easily and reliably attached, and the rear seat 2 can be attached efficiently.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.
For example, instead of the stud bolt 12 of the above-described embodiment, a welding nut is attached to the back surface side of the seat cross member 8, and a fastening bolt 20 similar to the front fastening portion 13 as shown in part C of FIG. Then, the bent portion 15 of the rear tightening portion 14 may be fastened and fixed. Alternatively, the front tightening portion 13 may be fastened and fixed by the stud bolt 12 instead of the tightening bolt 20.

It is a perspective view which shows the rear seat attached by the attachment structure which concerns on embodiment of this invention. It is a perspective view which shows the floor panel of the motor vehicle to which the attachment structure of the sheet | seat which concerns on embodiment of this invention is applied. It is the perspective view which looked at the state which attached the rear seat in FIG. 1 to the floor panel from the vehicle front. It is the perspective view which looked at the state which attached the rear seat in FIG. 1 to the floor panel from the vehicle rear. It is sectional drawing of the A section in FIG. It is sectional drawing of the B section in FIG. It is a perspective view which shows the attachment metal fitting used for the attachment structure which concerns on embodiment of this invention. 1 shows a rear seat of an automobile to which a conventional mounting structure is applied, in which (A) is a side view in a use state, (B) is a side view in a state where a seat back is folded into a seat cushion, and (C) is a standing posture. It is a side view in the state. It is a side view which shows the state by which a rear seat is attached to a floor panel with the conventional attachment metal fitting with a part in cross section.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Floor panel 2 Rear seat 3 Seat cushion 4 Seat back 7 Mounting bracket 8 Seat cross member 9 Inclined part 9a Bolt hole 10 Horizontal part 11 Convex part 11a Rear inclined surface part 12 Stud bolt 13 Front tightening part 13a Front side attachment surface 13b Cutting Notch 14 Rear tightening portion 15 Bending portion 15a Rear mounting surface 15b Bolt hole 19a, 19b Nut 20 Tightening bolt

Claims (4)

  In a state where the seat back is folded on the seat cushion, a foldable seat that can be rotated about a rotation shaft provided at a lower front portion of the seat cushion to maintain a standing posture is provided on the rotation shaft. In the seat mounting structure that is attached to the floor panel via a fixture connected to the seat, the fixture is provided with a fastening portion on the rear side of the seat in a standing posture, and the top surface of the fastening portion The seat mounting structure is characterized in that a mounting surface inclined downward from the front of the vehicle to the rear of the vehicle is formed.   An inclined surface portion corresponding to the mounting surface is formed on the floor panel, and a tightening portion of the fixture is arranged to overlap the inclined surface portion. The seat mounting structure according to claim 1.   A stud bolt that protrudes obliquely upward toward the rear of the vehicle is provided in the inclined surface portion of the floor panel, and a bolt hole through which the stud bolt is inserted is provided in the attachment surface of the fastening portion of the fixture. The tightening portion of the fixture is fixed to the inclined surface portion of the floor panel by tightening a nut in a state where the stud bolt is inserted into the bolt hole. Sheet mounting structure.   The fixture is provided with a tightening portion on the front side of the seat in a standing posture, and a mounting surface that is inclined downward from the rear of the vehicle toward the front of the vehicle is formed on the upper surface of the tightening portion. The seat mounting structure according to any one of claims 1 to 3, wherein the seat mounting structure is provided.

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