Timing belt structure with corner groove
OwnerYoung Doo Kwon, Hyun Wook Kwon +2inventors
InventorsYoung Doo Kwon, Hyun Wook Kwon, Weon Kook Choi, Hyok Chun Kwon
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Abstract
The timing belt and a coupling structure of the same are disclosed, in which a stress focused at a corner portion decreases by forming an optimum shaped groove at a corner portion of a timing belt, so that it is possible to largely increase a fatigue life span of a timing belt and a durability of a timing belt. In addition, noises and vibrations can be minimized by forming a through hole at a threaded surface of a timing belt or a threaded portion of a sprocket. In the timing belt, which has threads at a belt body, there is provided an improved timing belt comprising a groove formed at a corner portion in which the threads and the belt body contact with each other.
Claims2
A timing belt structure comprising:
- a timing belt body having a base surface;
- a tooth protruding from said base surface, said tooth having a root portion adjacent to said base surface of said timing belt body;
- a corner groove formed in said root portion of said tooth in a width direction;
- and
- a reinforced layer coated on said base surface of said timing belt body, a surface of said tooth, and said corner groove;
- wherein said corner groove is recessed into said tooth such that said corner groove reduces the thickness of said tooth;
- and
- wherein substantially all portion of said corner groove is disposed within said tooth, and said corner groove is tangent to said base surface of said timing belt body.
Dependencies are inferred from the claim text.