JP3656562B2 - Slide rail mounting structure. - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting structure for a slide rail, and more particularly to a mounting structure that can be suitably used for a long slide rail that can greatly move a vehicle seat on a floor in order to effectively use a vehicle interior space.
[0002]
[Prior art]
In van-type cars, etc., rear seats are provided in two rows in the front and rear, and these rear seats are moved to the front of the vehicle as needed according to the amount of luggage to make effective use of the interior space of the vehicle. Long slide rails are used for large movements above. An example of the mounting structure is shown in FIG.
[0003]
In FIG. 12, the slide rail 81 has a U-shaped cross section that opens upward and is positioned in the recess 43 of the floor panel 4, and the upper rail 91 is inserted into the opening from above. The upper rail 91 to which the two plates are joined has a lower end portion 911 inserted into the slide rail 81 and is formed into a substantially inverted T-shaped cross section, and brackets 92 having an inverted U-shaped cross section are joined to the lower surfaces of both ends in the longitudinal direction. (Only one of them is shown), and a roller 93 that rolls on the bottom wall 811 of the slide rail 81 is attached thereto. Note that a backlash prevention piece 94 is mounted on each end face of the upper rail 91 in the longitudinal direction (only one is shown).
[0004]
A holder plate 95 having a substantially U-shaped cross section is provided joined to the outer periphery of the lower half portion of the slide rail 81. The holder plate 95 has upper end portions on both side edges separated from upper end portions on both side walls of the slide rail 81, and a holding gap d1. , D2 are formed. The leg portions 961 and 971 of the moldings 96 and 97 having a T-shaped cross section are inserted and mounted in the holding gaps d1 and d2, and the lip portions 962 and 972 formed in the moldings 96 and 97 are on the trajectory of the upper rail 91. It extends to.
[0005]
The mounting stay 82 is made of a plate having a constant width, and includes a central portion 821 that is recessed and bent in a U shape, and extending portions 822 and 823 that extend horizontally from the central portion 821 to the left and right. 821 is joined to the lower half outer periphery of the slide rail 81. The extension portions 822 and 823 are located on the floor panel 4, and the floor panel is constituted by bolts 83 inserted into the tightening holes 824 and 825 provided in the extension portions 822 and 823 and nuts 84 screwed to the bolts 83. 4 and the side member 7 are fastened together.
[0006]
[Problems to be solved by the invention]
However, in the above-described conventional mounting structure, the seat pulling load from the seat belt is input to the center of the mounting stay 82 in the width direction via the upper rail 91, whereas the fixing portion of the mounting stay 82 by the bolt 83 is Since the position is offset in the width direction from the load input position, it is necessary to increase the number of mounting stays 82 in order to endure a large seat pulling load, which causes a problem of increasing the installation effort and weight. there were.
[0007]
Therefore, the present invention solves such a problem, and provides a slide rail mounting structure that reduces the number of mounting stays, reduces the installation effort, and reduces the weight of the entire rail. Objective.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, a substantially U-shaped cross section that opens upward is provided at a plurality of longitudinal positions of the slide rail (1) for moving and guiding the vehicle seat. A mounting stay (3A) that is formed in a substantially U shape and is fixed to the slide rail (1) and that holds a molding (96, 97) extending in the longitudinal direction of the rail is provided at the opening edge. The bottom wall (33) of the stay (3A) is fixed to the vehicle floor (4) in a state where the center in the width direction is in direct contact with the vehicle floor (4).
[0009]
In the first aspect of the invention, the slide rail is fixed to the vehicle floor by the mounting stay at the center in the width direction of the bottom wall. Therefore, with respect to the seat pull-up load input via the upper rail moving along the slide rail, the rail The fixed points are aligned in the rail width direction with almost no offset. Therefore, even if the number of rail fixing points is reduced, the input load can be sufficiently tolerated, so that the number of installation stays can be reduced, and the installation effort and the increase in rail weight can be suppressed. Further, since the seat pulling load is received by the mounting stay, the plate thickness of the rail body can be lowered, and if the mounting stay is made of, for example, a high-tensile steel material, sufficient load resistance can be obtained. .
[0010]
According to the second aspect of the invention, the bolt body (51) is configured to have the center portion of the bottom wall (33) of the mounting stay (3A) recessed downward and fastened and fixed to the vehicle allure (4) in the recessed portion (331). Position the head (511) of
[0011]
In the second aspect of the invention, since the head of the bolt body does not protrude on the bottom wall of the slide rail, its smooth movement is guaranteed without interfering with the upper rail.
[0014]
In the third aspect of the invention, the opening (34) is formed in the side wall (31, 32) of the mounting stay (3A), and the peripheral edge (34a, 34b) of the opening (34) has a predetermined length and the slide rail ( 1) Weld and fix to the side walls (17, 18).
[0015]
In the third aspect of the invention, since the periphery of the opening formed in the mounting stay is fixed to the side wall of the slide rail by a predetermined length, the length of the mounting stay in the rail longitudinal direction is shortened to reduce its size. Can be planned.
[0016]
In addition, the code | symbol in the said parenthesis shows the correspondence with the specific means as described in embodiment mentioned later.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
FIG. 1 shows the appearance of a slide rail 1 to which the mounting structure of the present invention is applied. Two such slide rails 1 are installed in parallel at left and right positions on the vehicle floor. In FIG. 1, the slide rail 1 is a long body having a substantially U-shaped cross section that opens upward, and the opening edge flange portions 11 and 12 that are bent inward are used to attach end covers to the front end and the rear end, respectively. A circular mounting hole 13 is formed. Further, a circular mounting hole 15 is provided at the front and rear ends in the center of the bottom wall 14 of the slide rail 1, and circular tool insertion holes 16 are provided at a plurality of positions in the longitudinal direction (four places in the present embodiment) between them. It has been.
[0018]
An upper rail 2 is accommodated in the slide rail 1 movably along the slide rail 1. The appearance is shown in FIG. The upper rail 2 is formed by stacking two long plates in a vertical posture, and an upper edge thereof is bent in the horizontal direction to form a flange portion 25, on which a seat leg that supports the seat body is placed. A shaft body 22 is fixed to the lower edges of both ends in the longitudinal direction of the upper rail 2 so as to be orthogonal to the plate surface, and wheels 23 are attached to both ends thereof. A lock plate 24 is provided at an intermediate position of the upper rail 2 so as to be sandwiched between the plates and movable up and down, and a lower end 241 projects downward from the upper rail 2. The lock plate 24 is urged downward by an attached spring member (not shown), and the lower end 241 enters a lock hole (not shown) provided at an appropriate position on the rail bottom wall 14 to move the upper rail 2. Position it. The lock plate 24 is pulled up by a known structure in conjunction with a lock release lever provided on the seat main body and escapes from the lock hole, so that the upper rail 2 can be freely moved.
[0019]
In FIG. 1, mounting stays 3A and 3B are joined to the outer periphery of the lower half at a plurality of positions (four in this embodiment) at the front and rear end portions and the longitudinal intermediate portion of the slide rail 1, and the details are shown in FIG. 3 and FIG. The mounting stay 3A is formed in a substantially U shape similar to the cross-sectional shape of the slide rail 1 (FIG. 3), and both side walls 31 and 32 have lower half portions 311 and 321 extending at a certain length in the rail longitudinal direction (FIG. The upper edge 311 a is fixed to the side walls 17 and 18 of the slide rail 1 by welding. The upper half portions 312 and 322 of the side walls 31 and 32 of the mounting stay 3A extend upward from the center of the lower half portions 311 and 321 (FIG. 4) and are separated from the upper half portions of the side walls 17 and 18 of the slide rail 1. (FIG. 3), holding gaps d1 and d2 are formed between them. The leg portions 961 and 971 of the moldings 96 and 97 extending in the rail longitudinal direction and having a T-shaped cross section are inserted and mounted in the holding gaps d1 and d2, and the lip portions 962 and 972 formed on the moldings 96 and 97 are inserted. Extends on the trajectory of the upper rail 2.
[0020]
The bottom wall 33 of the mounting stay 3 </ b> A has a central portion in the width direction and the longitudinal direction that is stepped downward (FIGS. 3 and 4) and is separated from the bottom wall 14 of the slide rail 1. The bolt 51 is inserted into a through hole 332 provided in the center of the bottom wall 33 with the position of 511. The tool insertion hole 16 provided in the bottom wall 14 of the slide rail 1 is located immediately above the bolt 51, and the hexagonal recess of the bolt head 511 passes through the tool insertion hole 16 from the upper open portion of the slide rail 1. By inserting the tool tip into 512 and turning it, the tip of the bolt 51 is screwed and fixed into a weld nut 52 provided on the back surface of the mounting hole of the floor panel 4.
[0021]
In FIG. 1, the mounting stays 3B provided at the front and rear end portions of the slide rail 1 have the same shape as the mounting stay 3A, and are fixed to the slide rail 1 with the same structure as described above. Part is attached. The bolt 53 inserted into the mounting hole 15 of the slide rail bottom wall 14 is provided on the back surface of the mounting hole of the floor panel 4 through the through hole 332 of the mounting stay 3B with its head 531 positioned on the bottom wall 14. The weld nut 52 (see FIG. 3) is screwed and fixed. The head 531 of the bolt 53 protruding on the bottom wall 14 abuts against the end surfaces 26 and 27 when the upper rail 2 reaches the end of the slide rail 1, and a stopper that restricts further movement of the upper rail 2. Function as.
[0022]
Thus, according to the present embodiment, the slide rail 1 is bolted to the floor panel 4 at the center in the width direction of the bottom wall 14 by the mounting stay 3A. With respect to the seat pull-up load input through the upper rail 2, the bolt fixing points are aligned with almost no offset in the rail width direction. Therefore, even if the number of bolt fixing points is reduced, it is possible to sufficiently withstand the input load. Since the moldings 96 and 97 are mounted using the mounting stay 3A, the number of molding mounting holder plates can be reduced or the holder plates can be eliminated. In addition, since the seat pulling load is received by the mounting stay 3A, the plate thickness of the slide rail 1 can be reduced, and this also makes it possible to reduce the weight. In particular, if the mounting stay 3A is made of a high-tensile steel material, sufficient load resistance can be obtained.
[0023]
(Second Embodiment)
In this embodiment, as shown in FIG. 5, a bolt insertion hole 19 having a larger diameter than this is provided at the same position as the tool insertion hole 16 provided in the slide rail bottom wall 14 of the first embodiment. On the other hand, a washer 54 is disposed in the recessed portion 331 of the mounting stay 3A, and the bolt 51 inserted from the upper open portion of the slide rail 1 is passed through the opening of the washer 54 through the bolt insertion hole 19 and attached. It is screwed and fixed into a weld nut 52 provided on the back surface of the mounting hole of the floor panel 4 through the through hole 332 of the stay 3A. Further, upper half portions 312 and 322 (only one is shown in FIG. 6) of both side walls 31 and 32 of the mounting stay 3A for mounting the moldings 96 and 97 extend upward from one end of the lower half portions 311 and 321. I'm allowed. Other structures are the same as those of the first embodiment already described. According to the present embodiment, unlike the first embodiment, the bolts 51 are not attached to the mounting stays 3A in advance, so that when the mounting stays 3A are fixed to the slide rail 1, the tips of the bolts 51 may protrude. In addition, since it is not necessary to position the tips of the bolts 51 with respect to the mounting holes of the floor panel 4 at the same time, the mounting operation is easy.
[0024]
(Third embodiment)
In the present embodiment, as shown in FIG. 7, the upper half 312 of the side wall 31 of the mounting stay 3 </ b> A has a mountain shape whose width gradually decreases upward, and the side wall lower half 311 has a length extending in the rail longitudinal direction in the center. A hole 34 is formed. The upper edge 34 a and the lower edge 34 b of the long hole 34 are welded and fixed to the side wall 17 of the slide rail 1. In the present embodiment, if the length of the long hole 34 is L, the mounting stay 3A is welded and fixed to the slide rail 1 with a length of 2L, and in the rail longitudinal direction as in the first embodiment. Compared to the structure in which the upper edge 311a (see FIG. 4) of the lower half 311 of the side wall 311 of the extending mounting stay 3A is welded and fixed to the side wall 17 of the slide rail 1, the length of the mounting stay 3A in the rail longitudinal direction is shortened. The size can be reduced.
[0025]
Note that the bottom wall of the mounting stay may be positioned in contact with the bottom wall of the slide rail without being recessed, and the bolt portion may protrude from the bottom surface of the bottom wall of the mounting stay. Moreover, the structure shown in FIGS. 8-11 can be employ | adopted as an installation structure of the attachment stay 3B. That is, in FIG. 8, the floor panel 4 is bent upward at the installation portion of the mounting stay 3 </ b> B, and is mounted in a flat plate shape without being recessed between the protruding end surface and the bottom wall 14 of the slide rail 1. The bottom wall 33 of the stay 3B is positioned, and bolts 53 are inserted into the mounting holes 15 and 332 of the bottom walls 14 and 33 so as to be coupled to a cap nut 55 provided on the lower surface of the side member 7. The movement of the upper rail 2 is regulated by the end face 26 coming into contact with a bolt head 531 protruding on the rail bottom wall 14. In FIG. 9, the protruding amount of the floor panel 4 at the installation portion of the mounting stay 3B is smaller than that in FIG. 8, and the bottom wall 33 of the mounting stay 3B is recessed accordingly. A washer 551 having a predetermined thickness is inserted into the recessed bottom wall 33, and its upper end surface projects upward from the mounting hole 15 of the rail bottom wall 14. A bolt 53 that passes through the washer 551 and is inserted into the mounting hole 332 is coupled to a cap nut 55 provided on the lower surface of the side member 7, and movement of the upper rail 2 causes its end face 26 to protrude onto the rail bottom wall 14. It is regulated by contacting the bolt head 531. In FIG. 10, the floor panel 4 is formed in a flat plate shape without being projected, while the bottom wall 33 of the mounting stay 3 </ b> B is greatly recessed so as to contact the floor panel 4. A washer 552 thicker than that shown in FIG. 9 is inserted into the recessed bottom wall 33, and its upper end surface protrudes upward from the mounting hole 15 of the rail bottom wall 14. A bolt 53 that passes through the washer 552 and is inserted into the mounting hole 332 is coupled to the cap nut 55 on the lower surface of the side member 7. The bolt head 531 protrudes on the rail bottom wall 14, and the end surface 26 of the upper rail 2 abuts on the bolt head 531, and the movement thereof is restricted. In FIG. 11, the shape of the mounting stay 3B is the same as that of FIG. 11, and the washer 553 inserted into the recessed bottom wall 33 is thin, while the head 531 of the bolt 53 passing therethrough is The size is such that it protrudes from the mounting hole 15 onto the rail bottom wall 14. The end face comes into contact with such a bolt head 531 and the movement of the upper rail 2 is restricted.
[0026]
【The invention's effect】
As described above, according to the slide rail mounting structure of the present invention, it is possible to reduce the number of installation stays, reduce the installation effort, and reduce the weight of the entire rail.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a slide rail showing a first embodiment of the present invention.
FIG. 2 is an overall perspective view of an upper rail.
FIG. 3 is a cross-sectional view of the slide rail in a state where it is installed on the vehicle floor.
FIG. 4 is a side view of the slide rail in a state where it is installed on the vehicle floor.
FIG. 5 is a cross-sectional view of a slide rail in a state of being installed on a vehicle floor, showing a second embodiment.
FIG. 6 is a side view of the slide rail in a state where it is installed on the vehicle floor.
FIG. 7 is a side view of a slide rail in a state where it is installed on a vehicle floor according to a third embodiment.
FIG. 8 is a cross-sectional view showing the installation structure of the mounting stay.
FIG. 9 is a cross-sectional view showing the installation structure of the mounting stay.
FIG. 10 is a cross-sectional view showing the installation structure of the mounting stay.
FIG. 11 is a cross-sectional view showing the installation structure of the mounting stay.
FIG. 12 is a cross-sectional view of a slide rail in a state installed on a vehicle floor, showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Long slide rail, 14 ... Rail bottom wall, 17, 18 ... Rail side wall, 2 ... Upper rail, 3A ... Mounting stay, 33 ... Bottom wall, 331 ... Recessed part, 34 ... Long hole, 34a ... Upper edge, 34b ... Lower edge, 4 ... floor panel, 51 ... bolt, 511 ... head, 96, 97 ... molding.

Claims (3)

Formed in a substantially U shape along the outer periphery of the slide rail at a plurality of longitudinal positions of the slide rail that has a substantially U-shaped cross section that opens upward and guides movement of the vehicle seat, and is fixed to the slide rail. The mounting stays holding the moldings extending in the longitudinal direction of the rails are provided, and the bottom walls of these mounting stays are fixed to the vehicle floor in a state of being in direct contact with the vehicle floor. Slide rail mounting structure.  The slide rail mounting structure according to claim 1, wherein a bottom wall central portion of the mounting stay is recessed downward, and a head portion of a bolt body fastened and fixed to the vehicle floor is positioned in the recessed portion. The slide rail mounting structure according to claim 1 or 2 , wherein an opening is formed in a side wall of the mounting stay, and a peripheral edge of the opening is welded and fixed to the side wall of the slide rail with a predetermined length.

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