Machine element or mechanism – Control lever and linkage systems – Hand operated
Patent
1991-11-22
1993-11-30
Luong, Vinh T.
Machine element or mechanism
Control lever and linkage systems
Hand operated
74502, 745024, F16C 110
Patent
active
052654940
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to an automobile accelerator cable effort incrementing device which is applicable to private passenger cars and to transport vehicles in general.
It is well known that the accelerator pedal is directly connected in automobiles to the corresponding carburetor device of the engine, normally by means of a steel cable having a protective sheath. One or more points of anchorage may be established along the layout of the cable and sheath to define the route thereof. This will be more or less complex depending on the relative position of the said accelerator pedal and carburetor.
The rest position of the accelerator pedal is defined by the urge of one or several springs acting permanently for this purpose. In this way, when the vehicle driver presses the accelerator pedal, he only has to overcome the resistance of said springs, while, on releasing the pressure from the pedal, this returns automatically to the rest position.
Under the above described conditions, the vehicle driver may progressively establish any operating conditions of the engine, determined by the position occupied by the accelerator pedal, by pressing on the pedal without any greater obstacle than the linear urge of the spring or springs.
The relationship between the pressure applied to the accelerator pedal by the vehicle driver and the engine operating conditions, described above, is a clear drawback in automobiles of new design. In fact, the high levels of sound-proofing and running comfort attained in the passenger compartment of present day automobiles mean that the control of the vehicle speed by the driver is exercised to a great extent only by direct observation of the speedometer installed on the dashboard. In view of normal driving conditions, such observation is not made with sufficient regularity, which is the frequent cause of excess speed and mechanical overloads on the carburetor mechanisms.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide an automobile accelerator cable effort incrementing device which provides a solution to the problem raised by driver control over the vehicle speed independently of direct observation of the speedometer and so as to avoid mechanical overloads on the carburetor mechanism.
This device according to the invention is designed so that, from a certain engine acceleration level, the driver is required notably to increase the pressure on the accelerator pedal to continue accelerating. In this way he is aware that he has reached a point at which the engine is revving at a high speed. On the other hand, the device of the invention does not represent any obstacle for the return stroke of the accelerator pedal, i.e. during the return to the rest position.
The device may be fitted as original equipment in any intermediate point appropriate to the conditions peculiar to each particular application in the layout of the sheathed steel cable between the accelerator pedal and the vehicle carburetor, without said cable being interrupted in any way.
The automobile accelerator cable effort incrementing device of the invention is characterized in that it is constituted by a hollow, essentially parallelepipedic main body member open on one side thereof, which main body member is attached at the end comprising the open side and at the opposite end thereto, to the sheath of the steel cable connecting the accelerator pedal to the motor vehicle carburetor, said connection is effected by mechanical means which maybe formed in said main body member and which are suitably dimensioned so that said steel cable may slide, stripped of the sheath, in the interior of said main body member, said body member is suitably dimensioned snugly to house the mechanical effort incrementing means and a U-shaped fixing body member which, provided with mechanical means for attachment thereof to a fixed point, establishes the position in the interior of the main body member from which the mechanical effort incrementing means are operative.
The
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Gabas Carlos
Roca Agustin
Luong Vinh T.
Pujol y Tarrago S.A.
Striker Michael J.
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