JPH0511717Y2 - - Google Patents

Description

[Detailed description of the invention] "Field of industrial application" This invention consists of a rail on the seat side that is attached to the seat panel side and a rail on the vehicle body side that is movably fitted to the rail on the seat side. The present invention relates to a seat slide device having a rail unit.

"Conventional technology" Conventional seat slide devices include, for example,
There are those shown in FIG. 12 and FIG. 13, respectively.

In other words, in the one shown in Fig. 12, a rail 2 on the vehicle body side is movably fitted into a rail 1 on the seat side. Overhanging approximately horizontal main surface plate 3
The rail 2 on the vehicle body side has a substantially U-shaped cross section, and has a substantially horizontal bottom plate 5 and a substantially vertical side wall 6. A relatively large cylindrical main bearing 7 is rotatably arranged between the main face plate 3 and the bottom plate 5, and is sandwiched between the side walls 4 and 6 on both sides of the main bearing 7. A relatively small spherical sub-bearing 8 is disposed so as to be rotatable in such a state.

The rail 1a on the seat side is movably fitted into the rail 2a on the vehicle body side, as shown in FIG. 3a and substantially vertical mounting legs 9a for mounting on the rail 1a on the seat side, and has flanges 4a facing diagonally upward at both ends of the main surface plate 3a.
is formed. On the other hand, the rail 2a on the vehicle body side is formed to have a substantially rectangular cross section, and has a pair of diagonally downwardly directed flanges 6a, 6a spaced apart from each other at the center of a substantially horizontal top plate 9 that extends relatively small to both sides. . A mounting leg 9a of the seat-side rail 1a is movably inserted into the gap between the flanges 6a, 6a. A relatively large cylindrical main bearing 7a is arranged to be rotatable between the main face plate 3a and the bottom face plate 5a, and the flange 4a and the flange 6a
A relatively small spherical sub-bearing 8a is rotatably arranged between the two.

``Problem to be solved by the invention'' However, in the former case, the seat panel is mounted directly on the main face plate 3, and the sub bearing 8,
8 are separated from each other by a large distance, which is advantageous for the lateral load applied from the seat panel side to the main face plate 3 of the rail 1 on the seat side. If you try to spread it out, the main plate 3
If you try to attach the seat panel to the rail unit as it is, as it protrudes to the side,
If the side wall of the seat panel interferes with the side edge of the main face plate 3, and the rail unit and the seat panel are shifted vertically relative to each other to prevent interference, the mounting position of the seat panel will become higher and the space will be reduced. The problem was that it was not efficient.

In the latter case, since the lateral protrusion of the main surface 3a of the rail 2a on the vehicle body side is relatively small, there is no problem like the former case, but the secondary bearing 8a,
8a is relatively small and the seat panel is attached to the mounting leg 9a which is considerably higher than the location of the sub-bearing 8, which is disadvantageous against lateral loads. It was hot.

The present invention was developed by focusing on the problems of the conventional technology, and aims to provide a seat slide device that is efficient in mounting space and has high lateral rigidity. It is said that

``Means for Solving the Problems'' The gist of the present invention for achieving the above purpose is as follows: A rail on the vehicle body side, and a seat side that movably fits into the rail on the vehicle body side and supports the seat. In a seat slide device having a rail unit consisting of a rail, in which a slider for sliding is arranged between the rail on the seat side and the rail on the vehicle body side, a cross section of the rail on the seat side is formed into a substantially triangular shape with one side being a substantially horizontal base and at least the other two sides facing the seat panel side being the hypotenuses, and the rail on the vehicle body side is shaped like the rail on the seat side. Similarly, the slider is formed into a substantially triangular shape and fitted, and the slider is arranged in a state in which it is in contact with the corner of each of the three corresponding seat-side rails and the corner of the rail on the vehicle body side. The present invention resides in a seat slide device characterized by the following features.

"Function" When a relative load is applied in the lateral direction between the rail on the vehicle body side and the rail on the seat side, the load is applied to the side of the rail on the seat side facing the seat panel, which has a roughly triangular cross section. It is divided into three sliders through corresponding parts.

Then, the power shared by each of the three sliders,
Each corner of the rail on the vehicle body side that is in contact with the slider receives it.

That is, by having three sliders spaced apart from each other by a sufficient distance, the rail unit can sufficiently withstand relative lateral loads.

In addition, by placing the side wall of the seat panel close to the oblique side of the rail on the seat side, the width of the side wall can be sufficiently widened. Even when assembled to the seat panel, the side wall of the seat panel will not interfere with the rail on the seat side, the seat panel will not be shifted upwards, and the mounting position will not become unnecessarily high, ensuring sufficient installation space. It is possible to improve the efficiency of

“Embodiment” An embodiment of the present invention will be described below based on the drawings.

1 to 3 show a first embodiment of the present invention.

As shown in FIG. 1, a seat cushion 30 that tiltably supports a seat back 20 is attached to the vehicle floor 10 via a pair of rail units 40a, 40a arranged with the longitudinal direction facing forward and backward. There is.

As shown in FIG. 2, the cross section of the seat panel 32 of the seat cushion 30 is formed from a substantially horizontal bottom plate portion 34 to a substantially vertical side wall 38 via an inclined surface 36.
The inclined surface 36 and the substantially vertical side wall 38 form a mounting surface for the rail unit 40a.

As can be seen in FIGS. 1 and 2, the rail unit 40a includes a seat-side rail 50 fitted onto the front and rear sides of the vehicle body-side rail 40 so as to be movable back and forth.

The rail 40 on the vehicle body side is formed in a substantially right triangular cross section with one side being a substantially horizontal base, the side facing the inclined surface 36 of the seat panel 32 being an oblique side, and the other side being a vertical side. has been done. Similarly, the rail 50 on the seat side is formed so that its cross section has a substantially right triangular shape, and is fitted onto the rail 40 on the vehicle body side.

Corner portions 4 of three corresponding rails 40 on the vehicle body side
1 and the corner 51 of the rail 50 on the seat side.
0 is placed.

A slope plate 42 and a vertical wall 43 respectively correspond to the oblique side and the vertical side of the rail 40 on the vehicle body side, which has a substantially right triangular cross section. A slope plate 52 and a vertical wall 53 respectively correspond to the oblique side and the vertical side of the rail 50 on the seat side, which has a substantially right triangular cross section.

A side panel 54 is attached to the vertical wall 53, and a drive shaft 55 installed between the side panels 54, 54 has an indentation on the slope plate 42 of the rail 40 on the vehicle body side when the drive shaft 55 is rotated by an operation lever 58. A removable latch member 56 is fixed to the provided engagement groove. A latch member 5 is attached to the rail 50 on the seat side.
6. A window 57 for preventing interference is provided.

As shown in FIGS. 1 and 3, brackets 44 and 45 for fixing the vehicle body are fixed to the front end and intermediate position of the rail 40 on the vehicle body side, respectively.

Next, the effect will be explained.

When a relative lateral load is applied between the rail 40 on the vehicle body side and the rail 50 on the seat side, the load is applied to the rail 50 on the seat side via the seat panel 36.
It is applied to the slope plate 52 of.

The lateral load is divided into a force component in a direction perpendicular to the surface of the slope plate 52 and a force component in a direction parallel to the surface of the slope plate 52. The force is received by the corner portions 51, 51 at both ends of the slope plate 42 of the rail 40 on the vehicle body side through bearings 60, 60 arranged at both ends of the slope plate 52, respectively.

In addition, in response to the force in the direction parallel to the surface of the inclined plate 52, one of the bearings 60, 60 disposed at both ends of the inclined plate 52 and the bearings 60 other than those disposed at both ends of the inclined plate 52 are used. receive.

That is, since the three bearings 60, which are spaced apart from each other by a sufficient distance, share the lateral load with each other, the rail unit 40a can sufficiently withstand the relative lateral load.

Furthermore, by bringing the sloped surface 36 of the seat panel 32 close to the slope plate 42 of the rail 50 on the seat side, the seat panel 32 can be sufficiently expanded to both sides, and the seat can be sufficiently expanded to both sides. By assembling the panel 32 to the rail 50 on the seat side, the efficiency of the mounting space can be improved without making the mounting position of the seat panel 32 unnecessarily high.

According to the seat slide device according to the first embodiment, since the rail 50 on the seat side is almost completely fitted onto the rail 40 on the vehicle body side, it can sufficiently withstand peeling load.

FIG. 4 shows a modification of the first embodiment, in which the latch member 56 that engages and disengages from the rail 40 on the vehicle body side by rotation of the drive shaft 55 is replaced with a latch member 56 that moves back and forth in the vertical direction. and the rail 40 on the car body side
A locking member 56a is provided on the side to restrain the rail 40 on the vehicle body side and the rail 50 on the seat side from moving back and forth relative to each other.

FIG. 5 also shows a modification of the first embodiment, in which a lock member 56b that can be engaged and detached is provided in an engagement groove on the vertical wall 43 side of the rail 40 on the seat side.

6 to 9 show a second embodiment of the present invention, in which the cross-sectional shape of the rail 70 on the seat side and the cross-sectional shape of the rail 80 on the vehicle body side are closed cross sections, and the central part of the rail 70 on the seat side is is completely fitted onto the rail 80 on the vehicle body side. This makes it possible to further withstand peeling loads.

FIGS. 10 and 11 show a modification of the second embodiment, and also show a rail 70a on the seat side.
The cross-sectional shape and the cross-sectional shape of the rail 80a on the vehicle body side are closed sections, and the front and rear sides of the rail 70a on the seat side are completely fitted with the rail 80a on the vehicle body side.

In the above embodiment, the slider is a spherical bearing 60, but it may be a sliding body having a circular cross section or a generally elliptical cross section.

In addition, although the rail 40 on the vehicle body side and the rail 50 on the seat side are shown as having a substantially right triangular cross section,
It may also have an isosceles triangular cross section.

"Effect of the invention" According to the seat slide device according to the invention, the rails on the vehicle body side and the rails on the seat side are formed so that each section has a substantially triangular shape, and the mutually fitted corners are in contact with each other. Since the slider is arranged in the seat panel, the three sliders work while sharing the load with each other in response to the lateral load, which increases the rigidity against the lateral load and makes the seat panel If the seat panel is placed close to the side rails, the width on both sides of the seat panel becomes sufficiently wide, and the seat panel does not have to be shifted upward, for example, and the installation space efficiency can be improved.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is an overall perspective view of the seat slide device installed on a seat, and FIG.
The line sectional view, Figure 3 is the line sectional view of Figure 1 - line sectional view, Figure 4.
FIG. 5 and FIG. 5 each show a modification of the first embodiment, and include a sectional view of the main part of the seat slide device,
6 to 9 show the second embodiment, in which FIG. 6 is an overall perspective view of the seat slide device attached to the seat, FIG. 7 is a view taken in the direction of the arrow in FIG.
The figures show a cross-sectional view taken along the line shown in FIG. 7, FIG. 9 shows a cross-sectional view taken along the line shown in FIG. 9, and FIGS. 10 and 11 show modifications of the second embodiment. FIG. 11 is a front view of the slide device, FIG. 11 is a sectional view taken along the - line in FIG. 10...Vehicle floor, 20...Seat back,
30... Seat cushion, 32... Seat panel, 40a... Rail unit, 40... Rail on vehicle body side, 41... Corner, 50... Rail on seat side, 51... Corner, 60... ...Bearing (slider).

Claims (1)

[Scope of Claim for Utility Model Registration] A seat slide device comprising a rail unit consisting of a rail on the vehicle body side and a rail on the seat side that movably fits into the rail on the vehicle body side and supports the seat. In the case where a sliding slider is arranged between the rail on the seat side and the rail on the vehicle body side, the cross section of the rail on the seat side is such that one side has a substantially horizontal bottom and at least the seat side on the other two sides. The rail is formed into a substantially triangular shape with the side facing the panel side being the hypotenuse, and the rail on the vehicle body side is formed and fitted so that its cross section has the same substantially triangular shape as the rail on the seat side. A seat slide device characterized in that the slider is disposed in a state in which the slider is in contact with each of the corresponding corner portions of the rail on the seat side and the corner portions of the rail on the vehicle body side.