JPH11192867A - Slide rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase strength, reduce weight, facilitate manufacture and assembly, and reduce cost. SOLUTION: A rolling body 30 is inserted between the upper surface of a bottom plate 4 of a fixed rail and the lower surface of a lateral plate part 11 of a movable rail 3. Each of right and left side plates 5 of the fixed rail is inclined to its center as it extends upwards. The upper end side of the right and left side plates 5 is bent inwards so as to form a bent part 7. An outside vertical plate part 12 of the movable rail 3 is formed so that, when the rolling body 30 is inserted, it touches the outside inner surface and upper side inner surface of the bent part 7 of the fixed rail.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide rail.

[0002]

2. Description of the Related Art Conventionally, a bottom plate fixed to a fixed portion side of a vehicle body or the like, a left and right side plate, a fixed rail formed by a moving groove provided between each of the left and right side plates, and a central vertical plate portion in the form of a central vertical plate. A moving rail formed having a horizontal plate portion formed on the lower left and right sides of the central vertical plate portion and protruding substantially horizontally to the side, and an outer vertical plate portion provided on both sides of the horizontal plate portion to protrude upward; The moving rail is inserted from one of the front and rear openings of the fixed rail, a ball is inserted between the upper surface of the moving rail and the lower surface of the fixed rail, and the upper surface of the bottom plate of the fixed rail and the side of the moving rail. A configuration in which a rolling element is inserted between the lower surface of the plate and the lower surface is known.

[0003]

In the above-mentioned known example, since the ball is inserted between the upper surface of the moving rail and the lower surface of the fixed rail, the width of the moving groove is large. It became narrow, and there was a problem in the rigidity of the central vertical plate portion. Also,
There is a problem that the process of inserting the ball is troublesome and the number of components increases. The present invention improves the overall strength by devising the shapes of the moving rail and the fixed rail.

[0004]

The object of the present invention is to improve strength, reduce weight, facilitate manufacturing and assembly, and reduce costs.

[0005]

According to the present invention, there is provided a bottom plate 4 for fixing a portion of a seat back 3 in the width direction of a backrest sheet 3 to a center portion 5 of a backrest, and a bottom plate 4 for fixing to a fixed portion side such as a vehicle body; A fixed rail 2 formed by a moving groove 6 provided between each of the left and right side plates 5, a central vertical plate portion 10 in the form of a central vertical plate, and lateral portions formed on the lower left and right sides of the central vertical plate portion 10. And a movable rail 3 having an outer vertical plate portion 12 provided on both sides of the horizontal plate portion 11 and projecting upward. Opening 20
The moving rail 3 is inserted between the upper surface of the bottom plate 4 of the fixed rail 2 and the lower surface of the horizontal plate portion 11 of the moving rail 3.
, Each left and right side plate 5 of the fixed rail 2 is inclined toward the center toward the top,
The upper ends of the left and right plates 5 are each bent inward to form a bent portion 7, and the outer vertical plate portion 12 of the moving rail 3 becomes the outer inner surface and upper side of the bent portion 7 of the fixed rail 2 when the rolling element 30 is inserted. This is a slide rail configured to be in contact with the inner surface.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Numeral denotes a slide rail provided on a vehicle seat or the like, and includes a fixed rail 2 fixed to a fixed portion such as a vehicle body and a movable rail 3 fixed to a seat side. The fixed rail 2
A bottom plate 4 fixed to a fixed portion side of a vehicle body or the like, left and right side plates 5,
The left and right side plates 5 are formed by moving grooves 6 provided between the left and right side plates 5, and the left and right side plates 5 are formed so as to be closer to the center toward the upper side in a front view, and the upper ends of the left and right side plates 5 are respectively bent inward. The bent portion 7 is formed.

The moving rail 3 is formed at the center in a vertical plate-shaped central vertical plate portion 10 attached to the seat, and at the lower portion of the central vertical plate portion 10, horizontal plate portions 11 projecting laterally substantially horizontally.
And formed on the outer vertical plate portion 12 protruding upward on both sides of the horizontal plate portion 11. Thus, the moving rail 3 is inserted through one of the front and rear openings 20 of the fixed rail 2 so that the central vertical plate 10 protrudes above the moving groove 6 of the fixed rail 2. The upper outer surface 21 of the fixed rail 2 abuts on the upper inner surface 22 of the left and right side plates 5 so as not to move in the left-right direction.
The upper end surface 23 of the moving rail 3 is configured to be in close contact with the upper inner surface 24 of the bent portion 7 of the left and right side plates 5.

Reference numeral 30 denotes a rolling element to be inserted between the upper surface of the bottom plate 4 of the fixed rail 2 and the lower surface of the horizontal plate portion 11 of the movable rail 3, and has a small-diameter portion 31 formed in the center, and on both sides of the small-diameter portion 31. A large-diameter cylindrical portion 32 is formed, and the large-diameter cylindrical portion 32 is
1 below. Reference numeral 35 denotes a retainer for stabilizing the rolling element 30. A fitting groove 36 is formed in accordance with the planar shape of the rolling element 30. The fitting groove 36 slides on the small diameter portion 31 of the rolling element 30. A guide portion 37 is provided to be in contact therewith. 38
Is a bead provided on the central vertical plate portion 10 of the moving rail 3.

[0009]

Next, the operation will be described. The moving rail 3 is inserted through one of the openings 20 in the front and rear of the fixed rail 2, and the central vertical plate 1
0 is projected above the moving groove 6 of the fixed rail 2, and the rolling element 30 fitted in the fitting groove 36 of the retainer 35 is inserted between the bottom plate 4 of the fixed rail 2 and the horizontal plate portion 11 of the moving rail 3. When positioned, the upper outer surface 21 of the outer vertical plate portion 12 of the moving rail 3 is connected to the upper inner surface 22 of the left and right side plates 5 of the fixed rail 2.
, The moving rail 3 does not move in the left-right direction.

That is, since the left and right side plates 5 of the fixed rail 2 are formed so as to be inclined toward the center toward the upper side as viewed from the front, when the moving rail 3 is pressed upward by the rolling element 30, the moving rail 3 Upper outer surface 2 of outer vertical plate portion 12
1 is pressed against the upper inner side surface 22 of the left and right side plates 5 of the fixed rail 2 to be positioned. Further, since the upper end surface 23 of the outer vertical plate portion 12 of the moving rail 3 is in close contact with the inner surface of the bent portion 7 of the left and right side plates 5 of the moving rail 3, it does not move up and down. Therefore, the moving rail 3 is fixed to the fixed rail 2,
It can be mounted without any play on the top, bottom, left and right.

Since no ball is inserted between the fixed rail 2 and the moving rail 3, the left and right widths of the bent portion 7 of the fixed rail 2 and the outer vertical plate portion 12 of the moving rail 3 can be reduced. Accordingly, the width of the moving groove 6 of the fixed rail 2 can be increased accordingly, and the bead 38 can be provided on the central vertical plate portion 10 of the moving rail 3 to improve the lateral rigidity. Further, as described above, since the left and right side plates 5 of the fixed rail 2 are formed so as to be inclined toward the center toward the top as viewed from the front, the left and right side plates 5 are not affected by the force of the moving rail 3 peeling upward. 5 acts so as to fall inward, and the strength against peeling is improved. Therefore, when the seat belt is attached to the seat, the load applied to the seat belt can be supported.

[0012]

According to the present invention, a part of the seat in the width direction of the backrest sheet 3 is formed in a center portion 5 of the backrest, a bottom plate 4 for fixing to a fixed portion side of a vehicle body or the like, left and right side plates 5, and each of the left and right side plates 5. A fixed rail 2 formed by a moving groove 6 provided therebetween, a central vertical plate portion 10 in the form of a central vertical plate, and a laterally extending laterally projecting laterally formed on the lower left and right sides of the central vertical plate portion 10. A plate portion 11 and an outer vertical plate portion 12 provided on both sides of the horizontal plate portion 11 so as to protrude upward.
The movable rail 3 is inserted through one of the front and rear openings 20 of the fixed rail 2, and the upper surface of the bottom plate 4 of the fixed rail 2 and the horizontal plate 11 of the movable rail 3 are formed. Each of the left and right side plates 5 of the fixed rail 2 is inclined so as to be directed toward the center as it goes upward, and the upper ends of the left and right side plates 5 are bent inward. A bent rail 7 is formed, and the outer vertical plate part 12 of the moving rail 3 is a slide rail configured to contact the outer inner surface and the upper inner surface of the bent part 7 of the fixed rail 2 when the rolling element 30 is inserted. Therefore, the upper outer surface 21 of the outer vertical plate portion 12 of the moving rail 3 comes into contact with the upper inner surface 22 of the left and right side plates 5 of the fixed rail 2 and is fixed in the left-right direction. 1
The upper end surface 23 of the moving rail 3 has the bent portions 7 of the left and right side plates 5 of the moving rail 3.
The moving rail 3 can be attached to the fixed rail 2 without any play in the vertical and horizontal directions without closely moving to the inner surface 24 and moving up and down. Further, since no ball is inserted between the fixed rail 2 and the moving rail 3, the left and right widths of the bent portion 7 of the fixed rail 2 and the outer vertical plate portion 12 of the moving rail 3 can be reduced. The width of the moving groove 6 can be widened, and the bead 38 can be provided in the central vertical plate portion 10 of the moving rail 3, which has an effect of improving the lateral rigidity. Further, since the left and right side plates 5 of the fixed rail 2 are formed so as to be inclined toward the center toward the top as viewed from the front, the left and right side plates 5 fall inward against the force of the moving rail 3 peeling upward. Thus, the strength against peeling can be improved, and when the seat belt is attached to the seat, the effect of supporting the load applied to the seat belt can be obtained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a slide rail.

FIG. 2 is a vertical sectional front view of a slide rail.

FIG. 3 is a longitudinal sectional front view showing a state in which a moving rail is mounted on a fixed rail.

FIG. 4 is a view of a second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Slide rail, 2 ... Fixed rail, 3 ... Moving rail, 4 ... Bottom plate, 5 ... Right and left side plate, 6 ... Moving groove, 7 ... Bending part, 10 ... Central vertical plate part, 11 ... Horizontal plate part, 12 ... Outside Vertical plate portion, 20 opening, 21 upper outer surface, 22 upper inner surface, 23 upper end surface, 30 rolling member, 31 small diameter portion, 32 ...
Large-diameter cylindrical portion, 35: retainer, 36: fitting groove, 37: guide portion, 38: bead.

[Procedure amendment]

[Submission date] March 16, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 4

Claims (1)

[Claims] 1. A bottom plate 4 for fixing a part of the seat in the width direction of the backrest sheet 3 to a fixed portion side of a vehicle body or the like formed in a backrest center portion 5.
A fixed rail 2 formed by moving grooves 6 provided between the left and right side plates 5, a central vertical plate portion 10 having a central vertical plate shape, and lower left and right portions of the central vertical plate portion 10. A lateral plate portion 11 formed on both sides and protruding substantially horizontally to the side;
A movable rail 3 having an outer vertical plate portion 12 protruding upward on both sides of the fixed rail 2.
The moving rail 3 is inserted through any one of the opening portions 20 before and after
Upper surface of bottom plate 4 of fixed rail 2 and horizontal plate 1 of movable rail 3
1 and the left and right side plates 5 of the fixed rail 2 are inclined toward the center toward the top, and the upper ends of the left and right side plates 5 are bent inward respectively. A slide rail in which the bent portion 7 is formed to make the outer vertical plate portion 12 of the movable rail 3 abut on the outer inner surface and the upper inner surface of the bent portion 7 of the fixed rail 2 when the rolling element 30 is inserted.