Machine element or mechanism – Control lever and linkage systems – Hand operated
Reexamination Certificate
1999-05-17
2001-07-24
Green, Mary Ann (Department: 3682)
Machine element or mechanism
Control lever and linkage systems
Hand operated
C074S502500
Reexamination Certificate
active
06263757
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a cable end structure for a pull-cable normally placed under a tractive or tensile force and particularly to such cable end structure for a rocking end such as a pedal side end of a car's accelerator cable.
2. Description of the Prior Art
Conventionally, on the pedal side end of car's accelerator cable, the cushion is disposed between the pedal and the cable and device in order to absorb a vibration of the engine. However, a rocking movement of the pedal causes the cable end device to be eccentrically pressed against the cushion.
Consequently, the accelerator cable exerts a bending load upon the cushion which is thereby inflected, on one hand, and the accelerator cable intensely rubs the cushion which is thereby abraded. These problems have made it difficult to improve a durability of the cable end structure.
SUMMARY OF THE INVENTION
This invention aims to solve these problems left behind by the prior art and to date remains unsolved.
The object set forth above is achieved, by forming one of the cable end device and the cushion with a convex portion and forming the other with a concave portion so that these convex portion and concave portion may be tightly engaged with each other and thereby the cable end device and the cushion may be maintained in a close contact with each other. Infection of the cushion as well as interfacial contact pressure due to such inflection can be minimized and the durability of the cushion can be effectively improved because there is no apprehension that said cable end device and said cushion might be shifted relatively to each other. The invention further proposes that said cable end device and said cushion are maintained in a close contact with each other by a tight engagement between a conical convex portion and a conical concave portion formed on end surfaces of said cable end device and said cushion, respectively. With such arrangement, even if the accelerator cable slacks and consequently the cable end device is disengaged from the cushion for some reason, the cable end device an be automatically brought in a concentric engagement with the cushion.
REFERENCES:
patent: 4738155 (1988-04-01), Stocker
patent: 4773278 (1988-09-01), Hanaoka et al.
patent: 5493934 (1996-02-01), Kelley
patent: 5570611 (1996-11-01), Pospisil et al.
patent: 5579663 (1996-12-01), Likich et al.
Chuohatsujo Kabushiki Kaisha
Green Mary Ann
Lackenbach Siegel Marzullo Aronson & Greenspan
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