Chairs and seats – Movable bottom – Tiltable
Patent
1990-04-03
1992-11-17
Chen, Jose V.
Chairs and seats
Movable bottom
Tiltable
297344, 297362, 248396, 74 8915, A47C 102
Patent
active
051637340
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a device for an optional control of at least some of the following objects positioned around a driver in a vehicle, namely the level of the front of his seat, the level of the rear of the seat, the level of the seat in its entirety, the adjustment of the seat in the longitudinal direction, the length of the seat, the inclination of the back rest, the length of the back rest, the level of the head rest, the shape of the spine rest and/or its hardness, the adjustment of the steering wheel, the angle of the steering wheel, the adjustment of the rear view mirror or mirrors as well as the level of a safety belt holder on a lateral post, the device including a common control means for a plurality of said and possibly additional adjustment objects.
STATE OF THE ART
Adjustable seats in vehicles are, when they have a simple design, only adjustable by means of a displacement of the seat and its back rest in the longitudinal direction of the seat. In a more advanced variety of such a driver's seat the back rest is adjustable in relation to the seat, the back rest being foldable forwards or backwards, at slight angles to the longitudinal direction of the seat. In an additional advanced variety of the known driver's seat the seat and its back rest can be folded about an axis, which is positioned perpendicular to the longitudinal direction of the seat, said axis preferably being positioned close to the leading edge of the seat. Also, it is known how to fold the seat either about an axis at its leading edge or about an axis at its rear edge.
The adjustment of all the known seats is done entirely manually, the person in the driver's seat leaning forwards or backwards or possibly rising somewhat from the seat. Also, it is known how to provide driver's seats with mechanical devices, which can be controlled electrically, electromagnetically, hydraulically or pneumatically. Such a driver's seat is described in German patent specification no. 2 134 325. A known electrically controlled driver's seat is provided with electrical motors, which are connected by set screws for an adjustment of the different positions of the seat and the back rest. Each one of said electrical motors is connected to an electrical switch, which is provided with an indication of the adjustment movement, which is controlled by means of the switch. It is also known how to control said switches by means of a microprocessor, which has been programmed with adjustment data relating to one or several persons.
BRIEF DESCRIPTION OF THE INVENTION
The purpose of the present invention is to provide a control means designed for controlling objects around a driver in a vehicle, primarily parts of an adjustable seat in the vehicle, which control is to be carried out in a simple manual or mechanical way. This purpose and additional purposes can be achieved according to the invention by providing each one of the possible adjustment objects with one or several adjusting devices, by assigning each one of said adjusting devices, or groups of adjusting devices, a corresponding position in said control means, by mounting, at least for some of said adjusting devices, a flexible, rotatable shaft, which extends from said control means to said adjusting device, as well as by designing that flexible shaft, which corresponds to a respective adjusting device, as an element, which can be rotated by means of said control means, provided the latter has been adjusted into the position, which corresponds to said adjustment object.
According to a preferred embodiment each one of said flexible shafts is at the end of said control means provided with one or several secondary gear wheels, while said control means comprise one or several primary gear wheels as well as means for rotating said primary gear wheel or gear wheels as well as operating devices for optionally establishing a power transmission between said primary gear wheel and one or several of said adjusting devices via said secondary gear wheels and matching flexible shaft a
REFERENCES:
patent: 1582280 (1926-04-01), Koken
patent: 2668580 (1954-02-01), Luketa
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patent: 4309015 (1982-01-01), Muhr
patent: 4470318 (1984-09-01), Cremer et al.
patent: 4570999 (1986-02-01), Harrison
patent: 4653807 (1987-03-01), Hirose et al.
patent: 4832403 (1989-05-01), Tomita
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