JPH06247192A - Seat slide device - Google Patents

Abstract

PURPOSE:To provide a seat slide device having improved appearance quality and enriched feature by materializing space saving and by enhancing attraction by concealing the inner part of an opening in a rail without losing the movement of the rail. CONSTITUTION:A protective cover 40 mounted on the end of a rail unit 10 is provided with an opening window part 42 for escaping the sliding part 21 of a seat side rail 20. The opening window part 42 is opened and closed by means of a pair of slidable shutter members 50, 50 along its both the end edges. The opening and closing action of each shutter member 50 is done by directly utilizing the moving force of the seat side rail 20 to a floor side rail 30 due to the relationship between racks 24, 52 and a pinion 46.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a floor side rail having an opening groove facing the seat side and extending in the longitudinal direction and fixed to the floor side of a vehicle body or the like, and slidable in the longitudinal direction with respect to the floor side rail. The slide contact portion that is fitted in the rail is provided with a rail unit including a seat side rail in which a seat mounting support portion extending from the opening groove of the floor side rail is continuously provided, and a protective cover is provided at an end portion of the rail unit. The present invention relates to a seat slide device for mounting a vehicle.

[0002]

2. Description of the Related Art As a conventional seat slide device of this type, for example, there is one disclosed in Japanese Utility Model Laid-Open No. 4-115936.

That is, a rail unit of a seat slide device is provided on a lower rail (floor rail) fixed to a floor side of a vehicle body through a mounting bracket, and is erected in a substantially horizontal sliding contact portion and vertically to the sliding contact. An upper rail (seat-side rail) including a support portion is slidably fitted inside, and a protective cover is attached so as to cover the end portion of the lower rail and the mounting bracket.

The protective cover is formed with horizontal and vertical grooves through which the lower portion and the base portion of the upper rail can pass, respectively, so that the upper rail that comes out from the end opening of the lower rail does not interfere.

[0005]

However, in such a protective cover to be mounted on the rail unit of the conventional seat slide device, not only the vertical groove but also the front end side of the cover which is easily seen by the person sitting in the rear seat. Since the horizontal groove at 2 is always open to a large extent, it does not look good and there is a problem in appearance quality.

Therefore, it is conceivable to provide a lid body for concealing the horizontal groove which is sufficient if the upper rail is opened only when the upper rail comes out from the end opening of the lower rail. Since it is necessary to devise attachment of springs and the like, there are problems in that there are restrictions on the design, which is not interesting, and the appearance cannot be sufficiently improved. Further, in view of the demand for space saving, it is necessary to devise a device for avoiding interference between the lid that opens outward and other members on the floor side of the vehicle body.

The present invention has been made by paying attention to such a conventional problem, and realizes space saving and conceals the inside of the opening of the rail without impairing the operability of the rail to improve the appearance. In addition, it is an object of the present invention to provide a seat slide device which improves the appearance quality and is more entertaining.

[0008]

The gist of achieving the above object is to provide a floor side rail having an opening groove (34) facing the seat side and extending in the longitudinal direction and fixed to the floor side of a vehicle body or the like. (30) and an opening groove (3) of the floor-side rail (30) in a sliding contact portion (21) fitted in the floor-side rail (30) so as to be slidable in the longitudinal direction.
4) A rail unit (1) including a seat side rail (20) in which a seat mounting support portion (23) extending from
0), and a seat slide device (10a) equipped with a protective cover (40) at the end of the rail unit (10).
In the above, the protective cover (40) includes a cover main body (41) which is attached to an end portion of the floor side rail (30) so as to circulate an outer wall thereof, and the cover main body (41) includes:
An opening window portion (42) which is open to the tip end side thereof and in which the tip end side of the sliding contact portion (21) of the seat side rail (20) can be projected and retracted, and a cover which is continuous to the substantially center of the upper edge of the opening window portion (42). An insertion groove (43) extending toward the base end side of the main body (41) and through which the support portion (23) of the seat side rail (20) can pass.
And the opening body (4) is formed in the cover body (41) with the insertion groove (43) interposed between the opening window (42) and the opening window (42).
2) A pair of shutter members (50, 50) that can be retracted from the upper side of the peripheral edge of the opening window part (42) along both edges of the opening window part (42), and each shutter member (50, 50) in the open state are provided with the opening window part (4).
A storage part (44) for accommodating inside the cover body (41) is provided from above the peripheral edge of 2), and both sides of the support part (23) of the seat side rail (20) are provided inside the cover body (41). In each of the above, a pair of pinion members (46, 46) that rotate around a pivot (45) orthogonal to the moving direction of the seat side rail (20) are disposed, and a sliding contact portion (of the seat side rail (20) ( 21) Lower rack portions (24) that engage with the respective pinion members (46) from the lower side at both ends.
While the sliding contact portion (21) is provided with the opening window portion (42)
In order to open each shutter member (50) with the rotation of each pinion member (46) when moving to the side, the rear surface side of each shutter member (50) meshes with each pinion member (46) from above. The seat slide device (10a) is characterized by being provided with a rack portion (52).

[0009]

When the front end of the seat side rail (20) is inside the opening of the end of the floor side rail (30), the cover body (41) attached to the end of the floor side rail (30) is The opening window portion (42) is closed by a pair of shutter members (50, 50) capable of opening and closing the opening window portion (42) by approximately half on each side.

Thus, the pair of shutter members (50,
By closing 50), it is possible to hide the inside of the opening of the rail seen through the opening window portion (42) of the cover body (41), improving the appearance and improving the appearance quality.

The seat-side rail (20) slides with respect to the floor-side rail (30), and the tip end side of the sliding contact portion (21) of the seat-side rail (20) comes from the end opening of the floor-side rail (30). When it comes out and moves toward the opening window portion (42) side of the cover body (41), the lower rack portions (22a, 22a) provided at both end edges of the sliding contact portion (21) are covered with the cover body (4).
1) The pinion members (46, 46) pivotally supported inside are engaged with the pinion members (46, 46) from below, and the pinion members (46, 46) rotate.

In this way, the moving force of the seat side rail (20) is directly transmitted to each pinion member (46, 46), and when each pinion member (46, 46) rotates, each pinion member (46, 46). The upper rack portion (52) of the pair of shutter members (50, 50) meshing with each other from above is gradually in the direction opposite to the moving direction of the sliding contact portion (21), that is, toward the base end side of the cover body (41). Sent to.

As a result, the pair of shutter members (50,
The pair of shutter members (50, 5) that accommodates the opening window (42) in the storage portion (44) inside the cover body (41) from above the peripheral edge of the opening window (42).
0) is opened, and the sliding contact part (21) of the seat side rail (20) is pulled out from the opening window part (42).
Therefore, when the rail unit (10) is operating,
The pair of shutter members (50, 50) for opening and closing the opening window portion (42) of the cover body (41) do not interfere,
The operability of the rail is not impaired.

When the end of the seat side rail (20) is drawn into the floor side rail (30) again, the lower rack part (22a, 22a) of the sliding contact part (21) of the seat side rail (20) is moved. 22a) each pinion member (4
6, 46) rotates in the opposite direction to the above rotation. As a result, the upper rack part (52) of the pair of shutter members (50, 50) housed in the storage part (44) is gradually fed to the tip side of the cover body (41), and the pair of shutter members (50). , 50) are in a state of reclosing the opening window part (42) along both edges of the opening window part (42).

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the present invention. As shown in FIG. 1, a rail unit 10 that constitutes a seat slide device 10a is a floor side rail 30 fixed to a vehicle body floor side via a mounting bracket 35, and a rail unit 10 is fitted in the floor side rail 30 so as to be movable back and forth. And a seat side rail 20 that directly supports the seat, and a protective cover 40 is provided at the rear end (or front end) of the rail unit 10.
Is installed.

The floor-side rail 30 is formed in a groove-shaped cross section as shown in FIGS. 1 and 2, and has a bottom surface portion 31, side wall portions 32, 32, and a ceiling portion 33. The floor-side rail 3 extends in the longitudinal direction at the approximate center of the ceiling portion 33.
Opening grooves 34 are formed so as to be continuous with the openings 0 at both ends.

On the other hand, the seat-side rail 20 extends above the opening groove 34 of the floor-side rail 30 at the sliding contact portion 21 which is slidably fitted in the floor-side rail 30 along the longitudinal direction thereof. It is made up of a series of support portions 23 for seat mounting,
The cross section has an inverted T shape as a whole. Further, both end edges of the sliding contact portion 21 are bent upward so that the flanges 22, 22 are
Are formed.

The seat side rail 20 is formed by welding two angle members back to back. In addition, the sliding contact portion 21 of the seat side rail 20 and the bottom surface portion 31 of the floor side rail 30.
Bearings 60, 60 such as spherical rollers, are interposed between and.

The protective cover 40 mounted on the rear end of the rail unit 10 has a cover body 41 made of synthetic resin which is mounted so as to surround the outer wall of the rear end of the floor rail 30. More specifically, the cover body 41 is
The rail cover portion 41a and the bracket cover portion 4 on the base end side
1b and.

A rectangular opening window portion 42 is formed on the slope portion of the bracket cover portion 41b, which is the front end side of the cover body 41, so that the front end side of the sliding contact portion 21 of the seat side rail 20 can be projected and retracted. An insertion groove 43 extending in the longitudinal direction is formed on the upper surface of the rail cover part 41a and is continuous with the center of the upper edge of the opening window part 42 and allows the support part 23 of the seat side rail 20 to pass therethrough.

Further, in the cover main body 41, the opening window 42 is divided into a state (see FIG. 3) and an opening state (see FIG. 4) in which the opening window 42 is closed by approximately half on one side with the insertion groove 43 interposed therebetween. A pair of shutter members 50, 50 which can be retracted from the upper side of the peripheral edge of the opening window part 42 along both edge edges of the opening window, and each shutter member 50 in the open state are arranged inside the cover main body 41 from the upper side of the peripheral edge of the opening window part 42. A storage unit 44 for storing is provided.

As shown in FIG. 1, each shutter member 50
Is formed by connecting a large number of narrow shoe plates to each other so as to be bendable, and can be smoothly bent from the upper surface portion of the rail cover portion 41a to the inclined surface portion of the bracket cover portion 41b. A storage unit 44 that stores the shutter member 50.
Is a rail cover portion 41a, as shown in FIGS.
Is a space surrounded by the upper surface portion of the shutter member 50 and guide portions 44a and 44b in which both end edges of the shutter member 50 are slidably fitted, and is open toward the lower side and the upper edge of the opening window portion 42. .

Inside the cover main body 41, a pair of pinion members 46, 46 are arranged on both sides of the support portion 23 of the seat side rail 20 and rotate about a pivot 45 orthogonal to the moving direction of the seat side rail 20, respectively. Corresponding to this, both flanges 2 of the sliding contact portion 21 of the seat side rail 20
2, 22 are provided with a lower rack portion 24 in which a plurality of rectangular teeth 22a, 22a, ...

Furthermore, in order that each shutter member 50 may be opened with the rotation of each pinion member 46 when the sliding contact portion 21 moves to the opening window portion 42 side, each pinion is provided on the back surface side of each shutter member 50. The member 46 is provided with an upper rack portion 52 in which a plurality of teeth 51, 51, ...

Next, the operation will be described. As shown in FIG. 1, by mounting the cover body 41 of the protective cover 40 on the rear end portion of the floor-side rail 30, there is a risk of burrs and sharp edges at the opening end of the floor-side rail 30 and the mounting bracket 35. Is eliminated, the safety is improved and the appearance is improved.

Further, when the front end side of the seat side rail 20 is set inside the rear end opening of the floor side rail 30, the opening window 42 of the cover body 41 attached to the rear end of the floor side rail 30. As shown in FIG. 3, the opening window 42 is closed by a pair of shutter members 50, 50 that can be opened and closed by approximately half on each side. in this way,
By closing the pair of shutter members 50, 50, it is possible to hide the inside of the opening of the rail seen through the opening window portion 42 of the cover body 41, improve the appearance, and improve the appearance quality.

On the other hand, in order to adjust the front and rear position of the seat (not shown), the seat side rail 20 is different from the floor side rail 30.
Is moved rearward, the sliding contact portion 21 of the seat side rail 20 is moved.
Moves to the outside of the rear end opening of the floor-side rail 30 and further moves to the opening window 42 side (left side in FIG. 1) of the cover body 41. Then, the rectangular teeth 22a, 22a, ... Of the lower rack portion 24 provided in the sliding contact portion 21 sequentially mesh with the pinion member 46 pivotally supported inside the cover body 41 from below, and the pinion member 46 in FIG. Rotate clockwise.

In this way, the moving force of the seat side rail 20 is
As it is transmitted to the pinion member 46, and the pinion member 46 rotates, the teeth 51, 51 of the upper rack portion 52 of the shutter member 50 that meshes with the pinion member 46 from the upper side.
However, it is gradually fed to the direction opposite to the moving direction of the sliding contact portion 21, that is, to the base end side (right side in FIG. 1) of the cover body 41.

As a result, as shown in FIG. 1, the shutter member 50 has the cover body 41 from above the peripheral edge of the opening window 42.
The shutter member 50, which is housed in the storage portion 44 inside and covers the opening window portion 42, is in an open state, and as shown in FIG. 4, the sliding contact portion 21 of the seat side rail 20 is outside from the opening window portion 42. Get out of. Therefore, when the rail unit 10 is operated, the pair of shutter members 50, 50 for opening and closing the opening window portion 42 of the cover body 41 do not interfere with the operation of the rail.

When the leading end side of the seat side rail 20 is again drawn into the floor side rail 30, the pinion member 46 meshing with the lower rack portion 24 of the sliding contact portion 21 of the seat side rail 20 is not rotated. In the opposite direction, that is, in FIG.
Rotates counterclockwise at. Thereby, the storage unit 4
Upper rack portion 5 of each shutter member 50 housed in
1 is gradually fed to the front end side of the cover main body 41, and each shutter member 50 moves downward along both end edges of the opening window portion 42 as shown in FIG. 3 to close the opening window portion 42 again. Becomes

As described above, in the seat slide device 10a according to this embodiment, the force of the seat side rail 20 moving back and forth with respect to the floor side rail 30 is utilized as it is due to the relationship between the rack and the pinion, so that the protective cover 40 can be used. It is possible to reliably open and close the pair of shutter members 50, 50 that close the opening window portion 42. Further, a pair of shutter members 50, 5
0 moves smoothly along the outer surface of the cover main body 41, and the edge of each shutter member 50 does not spread outward when opening and closing, and therefore does not interfere with other members on the vehicle body floor side. Can be avoided.

[0032]

According to the seat slide device of the present invention, the protective cover attached to the end of the rail unit is provided with the opening window portion through which the seat-side rail comes out, and the opening window portion is formed along both edges thereof. Since it can be opened and closed by a pair of shutter members that can appear and disappear, the interior of the opening of the rail can be concealed to improve the appearance and improve the appearance quality without impairing the operability of the rail unit. The member smoothly moves along the outer surface of the cover body, and the edge of each shutter member does not spread outward when opening and closing, and it is possible to avoid interference with other members on the vehicle body floor side. It is possible to save space.

Further, since the opening / closing operation of each shutter member is carried out by utilizing the moving force of the seat side rail with respect to the floor side rail as it is due to the relationship between the rack and the pinion, the operability of the rail unit is not impaired and each shutter member is reliably operated. The shutter member can be opened and closed, and the design and operation can be made interesting.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a seat slide device according to an embodiment of the present invention, which is a cross-sectional view taken along the line I-I of FIG.

FIG. 2 is a cross-sectional view showing a seat slide device according to an embodiment of the present invention, which is a cross-sectional view taken along line II-II of FIG.

FIG. 3 is a perspective view showing a state in which a pair of shutter members provided in a protective cover constituting a seat slide device according to an embodiment of the present invention closes an opening window portion.

FIG. 4 is a perspective view showing a state in which a pair of shutter members provided on a protective cover that constitutes a seat slide device according to an embodiment of the present invention opens an opening window portion.

[Explanation of symbols]

 10a ... Seat slide device 10 ... Rail unit 20 ... Seat side rail 24 ... Lower rack part 30 ... Vehicle body side rail 40 ... Protective cover 41 ... Cover body 42 ... Opening window part 46 ... Pinion member 50 ... Shutter member 52 ... Upper rack part

Claims (1)

[Claims] 1. A floor rail having an opening groove facing the seat and extending in the longitudinal direction and fixed to the floor side of a vehicle body, and a sliding contact slidably fitted in the floor rail in the longitudinal direction. Seat slide device in which a rail unit including a seat-side rail in which a seat-attaching support portion extending from the opening groove of the floor-side rail is serially provided, and a protective cover is attached to an end of the rail unit. In the above, the protective cover includes a cover main body that is attached to an end portion of the floor-side rail so as to circulate an outer wall thereof, and the cover main body has an opening at a front end side thereof and a front end side of a sliding contact portion of the seat-side rail is An openable and retractable opening window portion, which extends to the base end side of the cover body, is continuous with the center of the upper edge of the opening window portion,
An insertion groove through which the supporting portion of the seat-side rail can pass is formed, and the cover body is provided with an opening window in a state in which the opening window portion is closed by approximately half on one side and an opening state, respectively. A pair of shutter members that can be retracted from the upper side of the peripheral edge of the opening window portion along both edges of the opening, and a storage portion that stores each shutter member in the opened state inside the cover body from the upper side of the peripheral edge of the opening window portion are provided. Inside the cover body, a pair of pinion members that rotate around pivots orthogonal to the moving direction of the seat-side rail are arranged on both sides of the support portion of the seat-side rail, and the pair of seat-side rails slide. A state in which lower rack portions that engage with the respective pinion members from below are provided at both end edges of the contact portion, while the shutter members open as the pinion members rotate when the sliding contact portion moves toward the opening window portion Tona Order, seat slide apparatus characterized in that a rack unit on which meshes from above the pinion member on the back side of each shutter member.