JP2016097912A - Attachment structure of seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attachment structure of a seat which securely attaches seats with a simple structure while preventing deformation of an attachment member and a floor.SOLUTION: An anchor bracket 5 including a bracket body 5a having a hat shaped cross section, left and right dispersion bodies 5b, and first and second reinforcement bodies 5c, 5d is fixed to a floor F at a center part and left and right ends. Thus, when loads of occupants are applied to both seats 1 through seat belts, the load applied to the anchor bracket 5 is dispersed. Further, the hat shaped cross section of the anchor bracket 5 allows the seats 1 to be securely attached without causing deformation of the anchor bracket 5 and the floor F.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a seat mounting structure for mounting left and right seats to a passenger compartment floor.

  When installing and installing a vehicle rear seat on the floor, a reinforcing member that extends in the vehicle longitudinal direction along the lower surface of the spare tire house, the front end is joined to the cross member, and the rear end is joined to the back panel And a seat bracket 6 integrally having a flange portion and an attachment portion joined to the upper surface of the rear floor panel in front of the spare tire house in order to attach the lower portion of the rear seat disposed in the rear part of the passenger compartment to the vehicle body side. As a reinforcing member, it has an extension part in the vehicle width direction in front of the spare tire house, and a flange part of the seat bracket includes a first joining point that is joined with the extension part in a three-layer manner via the rear floor panel. It is proposed to improve the strength against the impact load from the rear (Patent Document 1).

Japanese Patent Laying-Open No. 2012-245878 (see abstract, paragraph 0010 and FIG. 1)

  By the way, the rear seat is attached to the floor by the mounting structure of the rear seat described above, but depending on the vehicle model, the rear seat is separated into left and right, and the anchor bracket is fixed to the vehicle compartment floor at an intermediate position between both seats. A structure is employed in which the end close to the anchor bracket is placed on the anchor bracket, and both sheets are attached and fixed to the anchor bracket with bolts or the like.

  More specifically, as shown in FIG. 4, the conventional anchor bracket 50 has a plate shape that is long in the left-right direction, and a bolt is inserted into a through-hole 50 a that is formed through the center of the anchor bracket 50. The bolt is screwed to the floor 51, the anchor bracket 50 is fixed to the floor 51, and the lower end portion of the connection bracket 53 provided at the left rear end portion of the seat cushion of the right seat 52 is attached to the right end portion of the anchor bracket 50. The bolt is inserted into the connection hole 53a placed and pierced at the lower end of the linking bracket 53 and the linking hole 50b pierced adjacent to the through hole 50a, and the linking bracket 53 is connected to the anchor bracket 50. Thus, the right seat 52 is attached to the anchor bracket 50. The left side seat is also attached to the anchor bracket 50 in the same manner. Here, the anchor bracket 50 may be fixed to the floor 51 by welding.

  However, when the left and right seats 52 are attached by the anchor bracket 50 described above, the anchor bracket 50 is structured to be fixed to the floor only at one point in the center, and a collision or the like is performed via seat belts provided on both seats 52. When the load of the occupant is applied to the seat 51, the load concentrates on the center portion where the anchor bracket 50 is fixed to the floor. There is a problem that the mounting strength is also low.

  Further, since the anchor bracket 50 is directly fastened to the floor 51 with bolts, it is necessary to make a dedicated hole in the floor 51, and there is a problem that a special waterproof seal structure must be adopted for the hole in the floor 51. is there.

  Various harnesses are routed on the floor 51. Since the anchor bracket 50 shown in FIG. 4 has a flat plate shape, there is no space for attaching a fixture for fixing these harnesses to the anchor bracket 50. There is also a problem that there is no space for forming a locking hole or a notch for locking the harness to the bracket 50 itself, and lacks versatility from the viewpoint of fixing the harness.

  An object of the present invention is to enable a sheet to be firmly attached with a simple configuration without causing deformation of an attachment member and a floor.

  In order to achieve the above-described object, the seat mounting structure of the present invention is a seat mounting structure in which left and right seats are attached to a passenger compartment floor, and has a cross-sectional hat shape with a central portion and left and right end portions on the floor. It is characterized by comprising a fixed mounting member in the left-right direction, and a fastening part for fastening each of the left and right sheets respectively formed on the left end part and the right end part of the upper surface of the mounting member. Item 1).

  According to the first aspect of the present invention, the mounting member has a hat shape in cross section, and the central portion and the left and right end portions are fixed to the floor, and the left and right sheets are respectively attached to the left end portion and the right end portion of the upper surface of the mounting member. Since there are multiple fastening parts for fastening, the mounting members must be fixed to the floor at both the center and the left and right ends when a passenger's load is applied to both seats via a seat belt. Thus, the load applied to the mounting member can be dispersed, the load can be prevented from being concentrated on one point on the mounting member and the floor as in the conventional case, and the mounting member has a cross-sectional hat shape. And a sheet | seat can be firmly attached, without causing a deformation | transformation of a floor.

  At this time, since the mounting member is fixed to the floor at both the center and the left and right ends, the mounting member is not attached with a hole that is specially provided in a specific position on the floor, but an existing hole is used in the floor. It is only necessary to set the shape and dimensions of the mounting member so that the mounting member can be fixed to the floor, and the use of holes in the existing floor increases the degree of freedom of fixing the mounting member and allows special processing to the floor. There is no need to do it.

  In addition, by making the mounting member into a cross-sectional hat shape, there is a space in the height direction from the floor to the upper surface of the mounting member, and the mounting member is routed to the floor using the wall surface in the height direction of the mounting member. It becomes possible to fix the harness.

1 is a perspective view of an embodiment of a seat mounting structure according to the present invention. It is a one part perspective view of FIG. FIG. 3 is a partial exploded perspective view of FIG. 2. It is a perspective view of a prior art example.

  An embodiment of a seat mounting structure according to the present invention will be described in detail with reference to FIGS. 1 to 3. In the present embodiment, front and rear, up and down, and left and right mean front and rear, up and down, and left and right as viewed in a seated state.

  FIG. 1 shows a right seat 1. The seat 1 is composed of a seat cushion 1a and a seat back 1b. The seat cushion 1a has a frame material as a side frame in the front-rear direction having a U-shaped cross section at the left and right ends. 2 and 2, with the upper ends of the front brackets 3a and 3a protruding downward from the lower surface of the seat cushion 1a, attached to the lower front ends of the side frames 2 and 2, respectively. It spans between the lower ends of both front brackets 3a, 3a so as to connect the front lower ends of both front brackets 3a, and the right upper bracket 3c protrudes downward from the lower surface of the seat cushion 1a to the right. And the upper surface of the rear bracket 3d having a U-shape on the left side is attached to the rear end of the lower surface of the side frame 2. 2, the lower end of the rear bracket 3 d protrudes downward from the lower surface of the seat cushion 1 a, and the rear bracket 3 d is fastened and fixed to an anchor bracket which is an attachment member described in detail below. Is done. Note that the left-side sheet (not shown) has the same configuration as the right-side sheet 1 described above.

  The anchor bracket 5 which is an attachment member in the present invention is configured as shown in FIGS. 2 and 3, and a left and right bracket body 5 a formed by bending a flat plate into a cross-sectional hat shape, and left and right sides of the bracket body 5 a. An L-shaped dispersion body 5b that is fixed to the left and right ends of the bracket body 5a by welding or the like so as to close the opening and distributes the load applied to the bracket body 5a to the left and right, and the inner central portion of the body section 5a. The first reinforcing body 5c having a V-shape with the upper end widened to the left and right, and the central portion formed in a cross-sectional hat shape and disposed along the inner upper surface of the bracket body 5a. And a second reinforcing body 5d sandwiched between the reinforcing body 5c.

  The expanded upper end of the first reinforcing body 5c is fixed to the second reinforcing body 5d by welding or bolting, and the second reinforcing body 5d is fixed to the upper surface of the bracket body 5a by welding or bolting. The dispersion body 5b is fixed to the left and right ends of the body 5a by welding, so that the bracket body 5a and both dispersion bodies are sandwiched between the bracket body 5a and the first reinforcement body 5c. The anchor bracket 5 having high strength is configured by integrating the 5b and the first and second reinforcing bodies 5c and 5d.

  As shown in FIGS. 1 and 2, the anchor bracket 5 has a lower end of the first reinforcing member 5c at the passenger compartment floor through an opening formed in the center of the upper surface of the bracket body 5a and the second reinforcing member 5d. The lower ends of both dispersions 5b are bolted to the floor F, and the anchor bracket 5 is fixed to the floor F at the center and the left and right points. At this time, it is not necessary to form a dedicated hole for bolting the lower end of the first reinforcing body 5c and the both dispersions 5b, and the dimensions of the anchor bracket 5 so that the holes already formed in the floor F can be used. What is necessary is just to design and to bolt the lower end of the 1st reinforcement body 5c and both the dispersion bodies 5b using the hole of the existing floor F. FIG.

  Furthermore, two bolt fastening holes 6 as a fastening portion for fastening each of the left and right seats 1 are pierced in the left end portion and the right end portion of the upper surface of the bracket body 5a of the anchor bracket 5 fixed to the floor. And both lower ends of the rear bracket 3d on the seat 1 side are arranged so as to oppose the two fastening holes 6 at the left end of the upper surface of the bracket body 5a. The rear bracket 3 d is fixed to the anchor bracket 5 by the bolts 8 inserted into the two fastening holes 6, and the right seat 1 is attached to the anchor bracket 5. Further, the left-side seat (not shown) is similarly attached to the anchor bracket 5.

  In FIG. 1 and FIG. 4, 9 is a positioning hole, and two are formed at predetermined positions on the left and right sides of the bracket body 5a so that positioning pins provided at the lower end of the rear bracket 3d can be fitted and positioned. Has been.

  As described above, the bracket body 5a of the anchor bracket 5 has a hat shape in cross section, the center portion and the left and right end portions of the anchor bracket 5 are fixed to the floor F, the left end portion of the upper surface of the bracket body 5a of the anchor bracket 5 and Since the left and right seats 1 are fastened to the fastening holes 6 formed at two at the right end by bolts 8 respectively, the anchor bracket 5 is attached to both seats 1 when a passenger's load is applied via a seat belt. The load applied to the anchor bracket 5 can be dispersed by fixing to the floor F at both the center and the left and right ends, and the load is concentrated as in the case where the anchor bracket 5 is fixed to the floor F at one central point. The deformation of the anchor bracket 5 and the floor F is prevented.

  Therefore, according to the above-described embodiment, in order to fix the anchor bracket 5 including the bracket body 5a, the left and right dispersion bodies 5b, and the first and second reinforcing bodies 5c and 5d to the floor F at the center and the left and right ends, When an occupant's load due to a collision or the like is applied to both seats 1 through a seat belt, the load applied to the anchor bracket 5 can be dispersed, and the load is applied to the anchor bracket 5 and the floor F at a single point as in the past. Since the anchor bracket 5 has a hat shape in cross section, the seat 1 can be firmly attached without causing deformation of the anchor bracket 5 and the floor F.

  At this time, since the anchor bracket 5 is fixed to the floor F at both the center and the left and right ends, the anchor bracket 5 is not attached to the floor F with a hole that is specially pierced at a specific position of the floor F. The dimension of the anchor bracket 5 may be designed so that the anchor bracket 5 can be fixed to the floor F by using the holes of the holes. This increases the degree of freedom of fixing the anchor bracket 5 and makes it special to the floor F. No processing is required.

  Further, by making the bracket main body 5a of the anchor bracket 5 into a cross-sectional hat shape, a space margin is generated in the height direction from the floor F to the upper surface of the anchor bracket 5, and the wall surface in the height direction of the anchor bracket 5 is used. Thus, a hole and a notch for fixing the harness routed on the floor F can be formed, so that the harness routing design can have a degree of freedom.

  The present invention is not limited to the above-described embodiment, and various modifications other than those described above can be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the case where the anchor bracket 5 is formed by a plurality of members including the bracket body 5a, the left and right dispersion bodies 5b, and the first and second reinforcing bodies 5c and 5d has been described. Of course, the anchor bracket 5 may be formed.

  In the above-described embodiment, the case where the fastening hole 6 for inserting the bolt for fixing the rear bracket 3d of the seat to the anchor bracket 5b is formed as the fastening portion of the present invention is described. The rear bracket 3d on the seat side may be fixed to the anchor bracket 5b by welding at two or more locations. Further, the number of fastening holes 6 (fastening portions) is not limited to two each on the left and right, but may be three or more.

  In addition, the seat mounting structure of the present invention can be applied to a driver seat and a passenger seat of a vehicle as well as a rear seat.

1 ... Seat 5 ... Anchor bracket (mounting member)
5a ... bracket body 5b ... dispersion 5c, 5d ... 1st, 2nd reinforcement 6 ... fastening hole (fastening part)
F ... Floor

Claims (1)

In the seat mounting structure that attaches the left and right seats to the passenger compartment floor,
A left and right mounting member having a cross-sectional hat shape and a center portion and left and right end portions fixed to the floor;
A mounting structure for a sheet, comprising: a plurality of fastening portions for fastening the left and right sheets respectively formed on the left end portion and the right end portion of the upper surface of the mounting member.

Images