Vehicle seat with automatic front anchoring, and vehicle...

Details Vehicle seat with automatic front anchoring, and vehicle... Vehicle seat with automatic front anchoring, and vehicle...

1999-06-23

2001-09-04

Cranmer, Laurie K. (Department: 3624)

Chairs and seats

Movable bottom

Tiltable

C297S336000, C248S503100, C296S065030

Reexamination Certificate

active

06283550

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to seats of vehicles which have a seat part adapted to be mounted on the vehicle floor by means of a rear connection and a front connection which includes a catch, and to vehicles comprising such seats.
BACKGROUND OF THE INVENTION
Seats of this type are known from FR-A-2 684 934. Even when the immobilization of these seats gives complete satisfaction, the installing and anchoring of them on the vehicle floor is quite difficult.
Moreover, such seats have the disadvantage of having connections made up from a substantial number of parts, and therefore expensive to make.
SUMMARY OF THE INVENTION
A particular object of the present invention is to overcome these disadvantages by supplying a seat which can be easily installed on the vehicle floor and removed from this vehicle.
To this end, according to the invention, a seat of the type in question is mainly characterized in that the catch includes:
a frontwards open notch intended to engage with a first horizontal transverse spindle integral with the floor in order to pivot the seat rearwards, during installation of this seat on the floor from a tipped over position, around said first spindle and to bring it into a use position where the seat part extends substantially horizontally and where the rear connection engages with means of fixing to the floor; and
a guide surface intended to engage with complementary means integral with the floor in order to bring the notch opposite the first spindle, during installation of the seat.
By means of these arrangements, the installation of the seat on the floor and the removal of the seat out of the vehicle are easy to achieve and the front connection of the seat is positively held on the vehicle floor.
In preferred embodiments of the invention, use may possibly be made moreover of one and/or other of the following arrangements:
the guide surface is concave and is, in the seat use position, located substantially in front and above the notch;
the catch additionally includes a finger which projects frontwards in the seat use position, this finger being intended to be inserted between the first spindle and the complementary means during the installation of the seat;
the finger comprises an upper face which is turned to the opposite side from the notch opening and which is intended to abut against the complementary means in said use position;
the finger is located substantially in the extension of the notch, being moved toward the front relative to this notch in the use position of the seat;
the notch has an oblong shape open towards the front of the seat and extends in the longitudinal direction of the seat when this is in the use position so that the catch includes a lower flange intended to abut under the first transverse spindle in said use position;
the complementary means include a second transverse spindle which is substantially parallel to said first transverse spindle and which is mounted on the vehicle floor;
the second transverse spindle is located at a level higher than the level of the first transverse spindle, so that the catch can be installed by introduction of the finger between the first and second spindles and by insertion of the first spindle in the notch;
the seat is pivoting mounted between the use position and a tipped forwards position where the foldable down part of the back is substantially parallel to the seat part, the catch having furthermore a hook acted upon by resilient means in a hooking position where said hook is fastened onto the second spindle when the seat part is in the tipped forwards position;
the catch includes furthermore a front nose intended to abut on the second transverse spindle in the seat part tipped over position, in order to form with the hook a closed housing enclosing said second spindle;
the hook is mounted on an arm pivoting on the catch in order to control the opening of the closed housing during the movement of the seat part from its tipped over position to its use position; and
the finger has a lower face opposite to the upper face and intended, in the seat part tipped over position, to be supported against a stop integral with the floor.
Furthermore, an object of the invention is also a vehicle comprising at least one seat such as defined above, the floor of this vehicle including a first horizontal transverse spindle engaging with the seat catch.


REFERENCES:
patent: 5330245 (1994-07-01), Boisset
patent: 5482345 (1996-01-01), Bolsworth et al.
patent: 5498051 (1996-03-01), Sponsler et al.
patent: 5562322 (1996-10-01), Christoffel
patent: 5743596 (1998-04-01), Chabanne
patent: 5765894 (1998-06-01), Okazaki et al.
patent: 5915779 (1999-06-01), Duchateau
patent: 6065804 (2000-05-01), Tanaka et al.
patent: 0 781 681 (1997-07-01), None
patent: 860 746 (1941-01-01), None
patent: 2 684 934 (1993-06-01), None

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