JP2018043625A - Seat bracket attachment structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further improve attachment rigidity of a seat and performance such as seat vibration only by adjusting only a cross member without depending on strength of a floor panel when the seat is attached to the floor panel.SOLUTION: In a seat bracket attachment structure, a seat bracket 4 supporting a seat 1 is attached to a floor panel 3. The seat bracket 4 extends from the floor panel 3 and has an upper surface part 4a, which receives a load from the seat 1, at its top. The seat bracket 4 is disposed at the outer side of the floor panel 3 in a vehicle width direction and a cross member 8 extending in the vehicle width direction is disposed at the vehicle cabin side to form a closed cross section by the cross member 8 and the floor panel 3. The upper surface part 4a of the seat bracket 4 and the floor panel 3 are connected by the cross member 8.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a seat bracket mounting structure, and more particularly to a seat bracket mounting structure in which a seat bracket that supports a seat is mounted on a floor panel.

  Conventionally, various techniques for attaching a seat bracket for supporting a seat to a floor panel have been proposed. In such a technique, there is a technique in which a cross member is installed at a place where a front floor panel and a rear floor panel are connected, and a seat is attached to the cross member (see, for example, Patent Document 1).

JP 2011-173506 A

  However, in the conventional structure as described above, it is necessary to further improve performance such as seat mounting rigidity and seat vibration. For this reason, it was necessary to tune the strength of the floor panel, but it was not easy to further improve the performance such as seat mounting rigidity and seat vibration, and there was a problem that it took time and effort.

  The present invention has been made in view of such a situation, and the purpose thereof is not to depend on the strength of the floor panel when the seat is attached to the floor panel, but only by adjusting the cross member, the seat mounting rigidity. Another object of the present invention is to provide a seat bracket mounting structure that can further improve performance such as seat vibration.

  In order to solve the above problems, in one aspect of the seat bracket mounting structure according to the present invention, in the seat bracket mounting structure in which the seat bracket that supports the seat is mounted on the floor panel, the seat bracket extends from the floor panel. It has an upper surface portion for receiving a load from the seat on the top, the seat bracket is disposed outside the floor panel in the vehicle width direction, and a cross member extending in the vehicle width direction is disposed on the vehicle compartment side. The cross member and the floor panel form a closed cross section, and the upper surface portion of the seat bracket and the floor panel are connected by the cross member.

  In the seat rail mounting structure according to the present invention, in the seat bracket mounting structure in which the seat bracket for supporting the seat is mounted on the floor panel, the seat bracket extends from the floor panel and receives the load from the seat on the top thereof. An upper surface portion, the seat bracket is disposed on the outer side in the vehicle width direction of the floor panel, and a cross member extending in the vehicle width direction is disposed on the vehicle interior side, and the cross member and the floor panel Since the closed cross section is formed and the upper surface portion of the seat bracket and the floor panel are connected by the cross member, the upper surface portion of the seat bracket is reinforced by the cross member forming the closed cross section, and the seat bracket The rigidity of can be increased. For this reason, when installing the seat on the floor panel, it is possible to perform tuning such as support strength of the seat only by adjusting the cross member without depending on the strength of the floor panel. The performance such as the mounting rigidity and the seat vibration can be further improved, and the performance related to the seat mounting can be easily adjusted.

It is a perspective view showing one embodiment of a seat bracket attachment structure concerning the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a seat bracket mounting structure according to the present invention, particularly showing a state where a seat is removed. 1 is a front view showing an embodiment of a seat bracket mounting structure according to the present invention, and particularly showing a state where a seat is removed. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing an embodiment of a seat bracket mounting structure according to the present invention, particularly showing a state where a seat is removed. 1 is a perspective view showing a seat bracket according to an embodiment of a seat bracket mounting structure according to the present invention. It is the sectional view on the AA line in FIG. It is sectional drawing which expands and shows the part enclosed with the circle | round | yen shown by the arrow B in FIG. It is CC sectional view taken on the line in FIG. It is sectional drawing which expands and shows the part enclosed with the circle | round | yen shown by the arrow D in FIG.

Hereinafter, an embodiment of a seat bracket mounting structure according to the present invention will be described.
In the seat bracket mounting structure according to the present embodiment, as shown in FIGS. 1 to 7, the rear seat 1 is configured to be mounted on the floor panel 3 via a pair of seat rails 2. The seat rail 2 located outside is attached to the floor panel 3 by using a seat bracket 4. In the drawing, the direction indicated by the arrow Fr indicates the front of the vehicle.

  The floor panel 3 includes a front panel 5 and a rear panel 6. A step portion 7 is provided between the front panel 5 and the rear seat 1, and a cross member 8 extending in the vehicle width direction is provided at the step portion (see FIGS. 1 and 2). The cross member 8 includes three members, a central portion 8a and left and right side portions 8b, and the central portion 8a and the left and right side portions 8b are partially overlapped and joined together. (See FIGS. 1-3).

  The seat bracket 4 extends upward from the floor panel 3 and has a substantially L-shaped cross section so as to have an upper surface portion 4a at the top, and further includes a front wall portion 4b on the front side of the vehicle. A side surface portion 4c is provided on the outer side in the direction, and flanges 4d and 4d for fixing to the floor panel 3 are provided on the front and side of the lower end thereof (see FIG. 5).

  The cross member 8 is disposed on the stepped portion 7 of the floor panel 3 from the passenger compartment side, and is fixed to the floor panel 3 together with the seat bracket 4. As a result, a closed cross section is formed by the cross member 8 and the stepped portion 7 of the floor panel 3 (see FIGS. 6 and 7).

  The seat bracket 4 is fixed to the floor panel 3 at the outer end 8c of the cross member 8 in the vehicle width direction. At this time, the upper surface portion 4a of the seat bracket 4 overlaps with the upper surface portion 8d of the cross member 8, and the front wall portion 4b of the seat bracket overlaps with the front wall portion 8f connecting the upper surface portion 8d of the cross member and the lower end portion 8e. The side surface portion 4c of the seat bracket is attached to the outer end portion 8c of the cross member in the vehicle width direction so as to seal the closed section opening (see FIGS. 1 to 4).

  Further, the seat bracket 4 includes a hole 4e through which a positioning pin 9 installed on the front side of the seat rail 2 is inserted in the upper surface portion 4a. Further, a front end 2a is extended at the front end of the seat rail 2 so as to be inclined downward, and a bolt 10 is installed at the front end. Correspondingly, the front wall 4b of the seat bracket 4 is provided with a hole 4f through which the bolt 10 is inserted. A hole 8g is provided in the front wall portion 8f of the cross member 8 corresponding to the hole 4f.

  When the rear seat 1 is installed on the floor panel 3, the positioning pin 9 previously attached to the seat rail 2 is inserted into the hole 4 e of the seat bracket 4 and further attached to the front end 2 a of the seat rail 2 in advance. The bolt 10 is inserted into the hole 8 g of the cross member 8 and the hole 4 f of the seat bracket 4 to fasten the bolt to the seat bracket 4. By fastening the bolt 10, the front end 2 a of the seat rail 2 is fixed to the front wall 4 b of the seat bracket 4, thereby completing the attachment of the rear seat 1 to the floor panel 3. In FIG. 7, 11 is a washer interposed between the cross member 8 and the front end 2a of the seat rail 2 when the bolt 10 is inserted into the hole 4f of the seat bracket 4, and 12 is the bolt 10 attached to the seat. A nut that is fastened and fixed from the back side of the bracket 4.

  When the seat bracket 4 and the cross member 8 are attached to the floor panel 3, the seat bracket 4 is once joined to the cross member 8, and then the seat bracket 4 is attached to the floor panel 3 together with the cross member 8. Is preferable in terms of work efficiency.

  In the present embodiment, the upper surface portion 4a of the seat bracket 4 can be reinforced and supported by the cross member 8 constituting the closed section, so that the mounting rigidity of the seat rail 2 by the seat bracket can be increased. For this reason, when the seat 1 is installed on the floor panel 3, the support strength of the seat 1 can be tuned only by adjusting the cross member 8 without depending on the strength of the floor panel 3. Adjustment of seat mounting-related performance such as mounting rigidity and performance such as seat vibration can be easily performed, and accuracy management of the mounting position of the rear seat 1 is also facilitated.

  In the present embodiment, the upper surface portion 4 a of the seat bracket 4 is connected to the floor panel 3 via the seat bracket itself and the cross member 8 by the cross member 8. The load from the rear seat 1 received by the upper surface portion 4a of the seat bracket can be received by the two members of the seat bracket 4 and the cross member 8 with respect to the floor panel 3, and the seat rail 2 The load supporting strength of the upper surface portion 4a of the seat bracket 4 that supports

  Furthermore, in this embodiment, with the installation of the seat bracket 4 and the cross member 8 to the floor panel 3, the left and right seat brackets 4, 4 are connected by the cross member 8, and the upper surface portion 8d of the cross member 8 is substantially horizontal. Therefore, the seat attachment-related performance can be tuned only by adjusting the strength of the cross member 8 without depending on the strength of the floor panel 3. In other words, the seat mounting-related performance can be tuned by adjusting the material, plate thickness, etc. of the cross member 8 with respect to performance such as seat mounting rigidity and seat vibration, which has conventionally depended on the strength of the floor panel 3. It is lighter than the structure and can improve performance at a lower cost.

  Furthermore, in the present embodiment, since the side surface portion 4c of the seat bracket 4 located on the outer side in the vehicle width direction is arranged at the outer end portion 8c in the vehicle width direction of the cross member 8, the cross member 8 is attached to the seat bracket 4. It can reinforce by the side surface portion 4c, and accordingly, the rigidity of not only the seat bracket 4 but also the cross member 8 can be improved.

  Further, in this embodiment, the front wall 4b of the seat bracket 4 is joined to the cross member 8, and the seat rail 2 is attached to the joint between the front wall and the cross member 8. The seat rail 2 can be supported by the portion where the two cross members 8 are combined to increase the rigidity, and the seat vibration rigidity and the seat vibration performance can be improved.

  Furthermore, in the present embodiment, the floor panel 3 is composed of a front panel 5 and a rear panel 6, which is a so-called multi-divided module structure that can be tuned according to the specifications of the seat 1. It can be carried out.

8 and 9 show another embodiment of the seat bracket mounting structure according to the present invention. In addition, in this embodiment, the description is abbreviate | omitted about what has the same function as the component demonstrated in above-described embodiment, and show | plays the same effect | action.
In the present embodiment, the front end portion 2a of the seat rail 2 located on the vehicle center side is attached to the overlapping portion 8h where the central portion 8a and the side portion 8b of the cross member 8 are overlapped and joined. It is. In FIG. 9, 8i is a hole provided in advance in the overlapping portion 8h of the cross member 8 in order to insert the positioning pin 9, and 13 is a nut for fastening and fixing the bolt 10 from the back side of the overlapping portion 8h. is there.

  The seat rail 2 can be surely supported by the overlapping portion 8h, which is a portion where the rigidity of the cross member 8 is increased by overlapping the two members of the central portion 8a and the side portion 8b. The seat vibration performance can be improved.

  In both of the above-described embodiments, the present invention is applied to the seat bracket mounting structure of the rear seat. However, the present invention is not limited to this, and may be applied to, for example, the seat bracket mounting structure of the front seat. Any structure may be used as long as the seat bracket is attached to the floor panel, and the seat is attached to a structure in which a closed cross section is formed by the cross member and the floor panel.

  While 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.

DESCRIPTION OF SYMBOLS 1 Rear seat 2 Seat rail 2a Front end part 3 Floor panel 4 Seat bracket 4a Upper surface part 4b Front wall part 4c Side surface part 4d Flange 4e, 4f hole 5 Front panel 6 Rear panel 7 Step part 8 Cross member 8a Central part 8b, 8b Side Part 8c Vehicle width direction outer side end 8d Upper surface part 8e Lower end part 8f Front wall part 8g, 8i Hole 8h Overlapping part 9 Positioning pin 10 Bolt 11 Washer 12, 13 Nut

Claims (4)

In the seat bracket mounting structure in which the seat bracket that supports the seat is attached to the floor panel,
The seat bracket has an upper surface portion that extends from the floor panel and receives a load from the seat on the top thereof.
The seat bracket is disposed outside the floor panel in the vehicle width direction,
Furthermore, a cross member extending in the vehicle width direction is arranged on the passenger compartment side, and a closed cross section is formed by the cross member and the floor panel,
A seat bracket mounting structure, wherein an upper surface portion of the seat bracket and the floor panel are connected by the cross member. While connecting the left and right seat brackets by the cross member,
2. The seat bracket mounting structure according to claim 1, wherein an upper surface portion of the cross member is substantially horizontal.   3. The seat bracket mounting portion structure according to claim 1, wherein the seat bracket on the outer side in the vehicle width direction has a side surface portion, and the side surface portion is disposed at an outer end portion in the vehicle width direction of the cross member. . The seat bracket has a front wall,
Joining the front wall to the cross member;
The seat bracket attachment part structure according to any one of claims 1 to 3, wherein the seat is attached to a joint part between the front wall part and the cross member.

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