Slider mechanism for a vehicle seat

Details Slider mechanism for a vehicle seat Slider mechanism for a vehicle seat

1983-01-27

1985-05-14

Petrakes, John

Cutlery

308 36, 248429, 296 65R, 312341NR, B60N 108, F16M 1300, F16C 2902

Patent

active

045168113

DESCRIPTION:

BRIEF SUMMARY
FIELD OF THE INVENTION

The present invention relates to a slider mechanism for moving a vehicle seat forwards or backwards, and more particularly, a slider mechanism which is disposed between a fixed rail and a movable rail arranged between a vehicle seat and a vehicle floor so as to allow the movable rail to be slidably engaged with the fixed rail.


BACKGROUND OF THE INVENTION

A conventional slider mechanism for a vehicle seat is constituted in such a manner that a synthetic resin slider is secured to a movable rail fixed to a seat and the slider is formed a groove for engaging with a fixed rail fixed to a vehicle floor so as to allow the movable rail to slide with respect to the fixed rail. This type of slider mechanism may generate rattling and other unpleasant noises on account of manufacturing errors in several dimensions, such as the clearance between the fixed rail and the movable rail, the thickness of the fixed rail and the width of the groove formed in the slider, the width of a groove-engaging portion of the fixed rail which engages with the groove and the depth of the groove, etc.
In addition, the groove-engaging portion of the fixed rail is usually composed of a flange which extends laterally from the fixed rail body. Thus, the flange will be exposed when the seat is moved so that this will not only possibly spoil the good appearance of passenger compartment interior but also damage the shoes or socks of the passenger.
Therefore, it is an object of the present invention to provide a slider mechanism which can overcome the above described conventional problems, does not require high-accuracy manufacture, and will not spoil the good appearance of the interior of the vehicle.
According to the present invention, the slider mechanism does not require high accuracy, can ensure the engagement between the fixed rail and the movable rail, and simplify the manufacturing process.


SUMMARY OF INVENTION

To accomplish the above object, a slider mechanism for a vehicle seat according to the present invention comprises a fixed rail which is fixed to a floor, a movable rail which is fixed to a seat and allowed to slidably engage with the fixed rail, and a synthetic resin slider block which is integrally molded to either the fixed rail or the movable rail and disposed between the fixed rail and the movable rail so as to slidably contact the other rail. The slider block includes an anchor member which secures the attachment to either the fixed rail or the movable rail so as to prevent the slider block from disengaging from the corresponding rail. In addition, it is preferable to form thin portions in the slider block so as to specify the location of cracks or breaks of the slider block which may be caused by the difference between the coefficients of thermal expansion of the slider block and the rail.
According to an embodiment of the present invention, a slider mechanism for a vehicle seat comprises;
a fixed rail which is fixed to a vehicle floor;
a movable rail which is fixed to a vehicle seat and engaged with the above-mentioned fixed rail; and
a synthetic resin slider block which is molded to one of the above mentioned rails so as to slidably contact the other rail.


BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be understood more fully from the detailed description given herebelow and from the accompanying drawings of the preferred embodiment of the present invention, which, however, should not be taken as limitative to the invention but for explanation or elucidation only.
In the drawings:
FIG. 1 is a perspective view of a vehicle seat which is equipped with a slider mechanism according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged perspective view of the slider mechanism according to FIG. 1;
FIG. 3 is a side view of the slider mechanism according to FIG. 1;
FIG. 4 is an elevational view of the slider mechanism of FIG. 1;
FIG. 5 is a sectional view taken along the line V--V in FIG. 3;
FIG. 6 is an enlarged perspective view of a slider block for the slider mechanism

REFERENCES:
patent: 2606091 (1952-08-01), Buchy et al.
patent: 2927627 (1960-03-01), Lohr
patent: 3313512 (1967-04-01), Colautti et al.
patent: 3356257 (1967-12-01), Eimer
patent: 3476435 (1969-11-01), Hitzelberger
patent: 3847452 (1974-11-01), Harder
patent: 3930632 (1976-01-01), Shigeta et al.
patent: 4210303 (1980-07-01), Torta et al.
patent: 4395011 (1983-07-01), Torta

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