Machine element or mechanism – Mechanical movements – Rotary to rotary
Reexamination Certificate
2000-02-10
2001-08-28
Marmor, Charles A (Department: 3681)
Machine element or mechanism
Mechanical movements
Rotary to rotary
C074S518000
Reexamination Certificate
active
06279410
ABSTRACT:
I—BACKGROUND OF THE INVENTION
The present invention refers to a torque variator device and, more precisely to a device to be used in a transmission shaft in order to modify the torque between a conductor end and a conducted end of said shaft.
A specific application of said device is seen at the outlets of the differential mechanism in vehicles in order to increase or decrease the torque exerted on the driving wheels depending on the characteristics of the ground on which the vehicle is circulating.
The main advantage of the device of the present invention is the simplicity of its mechanism, which leads to an easier construction and a low cost in the manufacturing of said device.
II—SUMMARY OF THE INVENTION
The main object of the present invention is a torque variator device consisting of a mechanism to be interleaved between a transmission arbor and a conducted arbor. Its novelty consists in that it includes two circular plates that drag, each one, double serrated rings. On one hand, said rings include the serration of a peripheric ratchet, and, on the other hand they engage with corresponding conical pinions solidary with the threaded bars, located radially and which are gyratory within coupling elements radially displaceable of said circular plates.
A preferred embodiment of the invention also includes means for the detection of the location of said coupling displaceable elements.
In said preferred embodiment of the invention, said circular plates are connected, one to the conductor arbor and the other to the conducted arbor, said rings being equally doubly serrated and located in a bench at the periphery of said plates.
REFERENCES:
patent: 3750485 (1973-08-01), Blakemore
patent: 3793895 (1974-02-01), Wright
patent: 3806014 (1974-04-01), Bolli
patent: 4192200 (1980-03-01), McCoin
patent: 5090395 (1992-02-01), Gannon
patent: 5996432 (1999-12-01), Orbea et al.
López Orbea Cesar Raul
Orbea de Lopez Elsa Dora Lujan
Marmor Charles A
Pang Roger
Pendorf & Cutliff
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