JP2007050784A - Mounting structure of seat for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive mounting structure of a seat for a vehicle capable of improving arrangement properties of other interior articles with a small number of parts. <P>SOLUTION: Abutting parts of brackets 14 to mount a seat cushion on a vehicle body with the vehicle body are mounted on an inclined surface on the vehicle body side contracted inward to be symmetrical with respect to a seat center from the viewpoint of the front of the vehicle body. The left and right brackets 14 are formed into the same shape. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle seat mounting structure for mounting a vehicle seat such as an automobile at a predetermined position or slidably mounted in a longitudinal direction of a vehicle body.

  Of the vehicle seats, a seat slidably attached in the front-rear direction is attached to the vehicle body via a seat slide device including a lower rail and an upper rail slidably attached to the lower rail. In this case, the seat is attached to the upper rail, while the lower rail is attached to the vehicle floor via a bracket (see, for example, Patent Document 1).

  Further, in the case of a seat that is directly attached to the vehicle body floor and cannot slide in the front-rear direction, the seat cushion frame is generally attached to the vehicle body floor via a bracket.

JP 2000-333774 A (FIG. 2)

  In the conventional vehicle seat mounting structure, the seat cushion is normally mounted on the vehicle body floor through four different brackets in the front, rear, left, and right, and there is a problem that the number of parts is large and the cost is increased.

  In addition, if the bracket is attached to the vehicle body in a shape that protrudes outward in the vehicle width direction, there is a problem that the disposition of other interior parts is deteriorated by the bracket attachment.

  The present invention has been made in view of the above-described problems of the prior art, and has a vehicle seat mounting structure that can reduce the number of parts, is inexpensive, and can improve the disposition of other interior parts. It is intended to provide.

  In order to achieve the above object, the invention according to claim 1 of the present invention is the attachment of a vehicle seat to which the seat cushion is attached to the vehicle body via two first brackets attached to both sides thereof. The contact portion of the first bracket with the vehicle body is attached to an inclined surface on the vehicle body side that is symmetrical with respect to the seat center when viewed from the front of the vehicle body, and The one bracket has the same shape.

  In the invention according to claim 2, the contact portion of the first bracket with the vehicle body has a bolt insertion hole, and the first bracket passes through the center of the bolt insertion hole to the seat cushion. It is characterized in that it has a symmetrical shape in a side view with respect to a line orthogonal to the mounting surface.

  Furthermore, the invention described in claim 3 is characterized in that positioning portions for the vehicle body are formed on both sides of the line in the contact portion of the first bracket with the vehicle body.

  The invention according to claim 4 is characterized in that the inclined surface is formed on a side wall of a floor tunnel extending in the front-rear direction of the vehicle body and one inner wall of a side sill formed on both sides of the vehicle body. To do.

  According to a fifth aspect of the present invention, the inclined surface is an abutting portion of a second bracket attached to the side wall of the floor tunnel and the side sill, and the corresponding contacting portion corresponds to the vehicle body of the first bracket. The first bracket is attached to the vehicle body via the second bracket by abutting and supporting the abutting portion.

  According to a sixth aspect of the present invention, the vehicle seat is attached to the vehicle body via a seat slide device having a lower rail and an upper rail slidably attached to the lower rail. The bracket is attached to the lower rail.

  According to the present invention, the abutting portion of the first bracket with the vehicle body is attached to the inclined surface on the vehicle body side that is symmetrical with respect to the seat center when viewed from the front of the vehicle body. Since the mounting portion with the vehicle body does not protrude outward, a space outside the mounting portion can be secured, and the disposition of other interior parts is improved. In addition, since the left and right first brackets have the same shape, the vehicle seat mounting structure is low in number of parts and inexpensive.

  Further, since the first bracket has a front-rear symmetrical shape in a side view with respect to a line passing through the center of the bolt insertion hole and orthogonal to the mounting surface to the seat cushion, the front and rear first brackets are made common. Can also be planned.

  Furthermore, since the positioning portions for the vehicle body are formed on both sides of the symmetry line in the contact portion of the first bracket with the vehicle body, the first bracket can be easily positioned with a simple structure.

  In addition, the inclined surface on the vehicle body side of the symmetrical inner constriction is formed on the side wall of the floor tunnel extending in the front-rear direction of the vehicle body and one inner wall of the side sill formed on both sides of the vehicle body. The rigidity of the seat can be improved by utilizing the rigidity of the side sill.

  Further, the second bracket attached to the inclined surface on the vehicle body side of the symmetric constriction has a contact portion that contacts and supports the contact portion of the first bracket with the vehicle body. Since the bracket is attached to the vehicle body via the second bracket, the first bracket can be attached to the vehicle body with a simple structure without affecting the shape or formability of the floor tunnel or side sill.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a rear view of a vehicle seat S, and the seat S is slidably attached in the front-rear direction of the vehicle body via a pair of left and right seat slide devices 2. A vehicle seat S in FIG. 1 shows a right seat toward the front of the vehicle, and a left seat slide device 2 is attached along a floor tunnel 4 extending in the front-rear direction in the center of the vehicle body, while a right seat slide The device 2 is attached along one side sill 6 formed in the front-rear direction on both sides of the vehicle body.

  The seat slide device 2 includes a lower rail 2a having a substantially U-shaped cross section and an upper rail 2b having a substantially reverse U-shaped cross section that is slidably attached to the lower rail 2a. On the other hand, the lower rail 2a is attached to the vehicle body floor via a bracket.

  In the following description, a bracket attached to the lower rail 2a is referred to as a rail side bracket, and a bracket attached to the vehicle body side and connected to the rail side bracket is referred to as a vehicle body side bracket.

First, the seat mounting structure on the floor tunnel side will be described.
As shown in FIG. 2, the floor tunnel 4 extending in the front-rear direction at the center of the vehicle body has a substantially U-shaped cross section in the vehicle width direction, and its side wall 4a extends from the upper edge toward the lower edge. It is an inclined surface that opens. A protruding portion 8 is provided on the side wall 4 a, and the vehicle body side bracket 10 is attached to the protruding portion 8.

  The vehicle body side bracket 10 includes a mounting portion 10a that is bent along the side wall 4a of the floor tunnel 4 and the protruding portion 8, and a contact portion 10b that contacts the rail side bracket. The abutting portion 10b is an inclined surface inclined toward the floor tunnel from the lower edge toward the upper edge, and a bolt insertion hole 10c is formed at a substantially central portion thereof, and below the bolt insertion hole 10c. A pair of pin attachment holes 10d are formed on both sides, and after the vehicle body side bracket 10 is attached to the floor tunnel 4, a positioning pin 12 is fixed to one of the pair of pin attachment holes 10d. The

  The pair of front and rear vehicle body side brackets 10 attached to the floor tunnel 4 have the same shape.

  On the other hand, as shown in FIGS. 3 and 4, the rail-side bracket 14 fixed to the vehicle-side bracket 10 on the floor tunnel side is in contact with the mounting portion 14 a attached to the lower rail 2 a and the vehicle-side bracket 10. 14b. The contact portion 14b is bent downward with respect to the mounting portion 14a. The rail-side bracket 14 has two bolt insertion holes 14c that are spaced apart at a predetermined interval in the mounting portion 14a, and one bolt insertion hole 14d is also formed in the approximate center of the contact portion 14b. Has been.

  A pair of front and rear step portions 14e as positioning portions is formed in the vicinity of the bolt insertion hole 14d. When the rail side bracket 14 is viewed from the vehicle width direction (side view), a line passing through the center of the bolt insertion hole 14d ( The shape is symmetrical to the front and rear with respect to a line perpendicular to the mounting surface to the seat cushion.

Next, the seat mounting structure on the side sill side will be described.
As shown in FIG. 5, the vehicle body side bracket 16 attached to the side sill 6 similarly includes an attachment portion 16 a bent along the inner wall of the side sill 6, and a contact portion 16 b that contacts the rail side bracket. I have. The contact portion 16b is an inclined surface that is inclined toward the side sill side from the lower edge toward the upper edge, and a bolt insertion hole 16c is formed at a substantially central portion thereof, and both lower sides of the bolt insertion hole 16c. A pair of pin mounting holes 16d are formed in the, and after the vehicle body side bracket 16 is mounted to the side sill 6, the pin 18 is fixed to any one of the pair of pin mounting holes 16d.

  The pair of front and rear vehicle body side brackets 16 attached to the side sill 6 have the same shape.

  As shown in FIGS. 2 and 5, both ends of the cross member 20 extending in the vehicle width direction are joined to the left and right vehicle body side brackets 10, 16, thereby improving the rigidity of the vehicle body side brackets 10, 16. I am letting.

  Further, the abutting angles (inclined surfaces) 10b and 16b of the left and right vehicle body side brackets 10 and 16 are equal to each other, and the interval gradually decreases from the upper edge to the lower edge when viewed from the front of the vehicle body (inner Stenosis) Symmetrical shape. Therefore, a rail side bracket (not shown) fixed to the vehicle body side bracket 16 on the side sill side can be the same shape as the rail side bracket 14 fixed to the vehicle body side bracket 10 on the floor tunnel side, When the left and right rail side brackets are attached to the lower rail 2a, the inclination angle of the contact portion is set equal to the inclination angle of the contact portions 10b and 16b of the vehicle body side brackets 10 and 16.

  That is, the rail side bracket has four shapes in total in the front, rear, left, and right, and only one type of rail side bracket needs to be manufactured.

  When the seat S is attached to the vehicle body floor, two bolt insertion holes (not shown) drilled in the front and rear of the lower rail 2a and two bolt insertion holes 14c drilled in the front and rear rail side brackets 14, respectively. First, the rail side bracket 14 is fixed to the lower rail 2a by inserting a bolt (not shown). Next, the contact portions 14b of the rail side bracket 14 are positioned with respect to the corresponding contact portions 10b and 16b of the vehicle body side brackets 10 and 16, but the contact portions 10b and 16b of the vehicle body side brackets 10 and 16 are positioned. Since the positioning pins 12 and 18 are fixed, and the abutting portion 14b of the rail side bracket 14 is formed with a positioning step portion 14e that is symmetrical in the front-rear direction, one of the positioning step portions 14e is attached. Positioning is easily performed by locking the pins 12 and 18.

  After positioning the contact portion 14b of the rail side bracket 14 with respect to the contact portions 10b and 16b of the vehicle body side brackets 10 and 16, the bolts 22 are inserted into the respective bolt insertion holes 10c and 14d or 16c and 14d. As a result, the contact portion 14b of the rail side bracket 14 is supported in contact with the contact portions 10b and 16b of the vehicle body side brackets 10 and 16, and the attachment of the seat S to the vehicle body floor is completed.

  In addition, although the said embodiment demonstrated the case where the sheet | seat S was attached to the seat slide apparatus 2, the seat attachment structure concerning this invention is applicable also to the structure where the sheet | seat S cannot slide to the front-back direction of a vehicle body. In this case, the rail side brackets are attached as the seat cushion side brackets at four positions on the front, rear, left and right of the seat cushion frame.

  According to the present invention, the front and rear, left and right brackets attached to the seat cushion for attaching the seat cushion to the vehicle body can be made common, and the mounting portion of the bracket with the vehicle body can be configured not to protrude outward. It is useful as a mounting structure for a vehicle seat that has a small number of parts, is inexpensive, and can improve the disposition of other interior parts.

It is a rear view of the attachment structure of the vehicle seat concerning this invention. It is a perspective view of the body side bracket attached to a floor tunnel. It is a front view of the rail side bracket attached to the lower rail which comprises a seat slide apparatus. It is a perspective view of the rail side bracket of FIG. It is a perspective view of the vehicle body side bracket attached to a side sill. It is sectional drawing which shows the state by which the rail side bracket was attached to the vehicle body side bracket by the side of a floor tunnel. It is sectional drawing which shows the state by which the rail side bracket was attached to the vehicle body side bracket by the side sill side.

Explanation of symbols

2 seat slide device,
2a Lower rail,
2b Upper rail,
4 Floor tunnel,
4a side wall,
6 Side sills,
8 Projecting part,
10 Car body side bracket,
10a mounting part,
10b contact part,
10c bolt insertion hole,
10d pin mounting hole,
12 pins,
14 rail side bracket,
14a mounting part,
14b contact part,
14c bolt insertion hole,
14d bolt insertion hole,
14e positioning step,
16 body side bracket,
16a mounting part,
16b contact part,
16c bolt insertion hole,
16d pin mounting hole,
18 pins,
20 cross members,
22 volts,
S Vehicle seat.

Claims (6)

A vehicle seat mounting structure in which a seat cushion is attached to a vehicle body via two first brackets attached to both sides thereof,
The contact portion of the first bracket with the vehicle body is attached to an inclined surface on the vehicle body side that is symmetrical with respect to the seat center when viewed from the front of the vehicle body, and the left and right first brackets are the same. A vehicle seat mounting structure characterized by having the following shape. The contact portion of the first bracket with the vehicle body has a bolt insertion hole, and the first bracket passes through the center of the bolt insertion hole and is perpendicular to the line perpendicular to the mounting surface to the seat cushion. The vehicle seat mounting structure according to claim 1, wherein the vehicle seat has a symmetrical shape. The vehicle seat mounting structure according to claim 2, wherein positioning portions for the vehicle body are respectively formed on both sides of the line at a contact portion of the first bracket with the vehicle body. The said inclined surface is formed in the side wall of the floor tunnel extended in the front-back direction of a vehicle body, and the one inner wall of the side sill formed in the both sides of the vehicle body, The one of Claims 1 thru | or 3 characterized by the above-mentioned. The vehicle seat mounting structure described in 1. The inclined surface is a contact portion of the second bracket attached to the side wall of the floor tunnel and the side sill, and the corresponding contact portion contacts and supports the contact portion of the first bracket with the vehicle body. The vehicle seat mounting structure according to claim 4, wherein the first bracket is attached to a vehicle body via the second bracket. The vehicle seat is attached to a vehicle body via a seat slide device having a lower rail and an upper rail slidably attached to the lower rail, and the first bracket is attached to the lower rail. The vehicle seat mounting structure according to any one of claims 1 to 5.

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