Synchronous Belt Sprocket and System
A sprocket system comprising a first sprocket ( 100 ) comprising a plurality of transverse first teeth ( 101 ) extending parallel to an axis of rotation (A-A) and having a first pitch (P 1 ), the first sprocket further comprising a plurality of transverse second teeth ( 102 ) having a second pitch (P 2 ) and disposed immediately adjacent the first teeth, the second teeth parallel to the first teeth, a tooth of said first teeth aligned with a radius (A) of said first sprocket, a tooth of said second teeth offset a distance (x) from said radius (A), wherein (x) is greater than zero, a second sprocket ( 200 ), and a toothed belt ( 300 ) entrained between the first sprocket and the second sprocket.
1 . A sprocket system comprising:
a first sprocket ( 100 ) comprising a plurality of transverse first teeth ( 101 ) extending parallel to an axis of rotation (A-A) and having a first pitch (P 1 );
the first sprocket further comprising a plurality of transverse second teeth ( 102 ) having a second pitch (P 2 ) and disposed immediately adjacent the first teeth, the second teeth parallel to the first teeth;
a tooth of said first teeth aligned with a radius (A) of said first sprocket;
a tooth of said second teeth offset a distance (x) from said radius (A), wherein (x) is greater than zero;
a second sprocket ( 200 ); and
a toothed belt ( 300 ) entrained between the first sprocket and the second sprocket.
2 . The sprocket system as in claim 1 , wherein (P 1 ) and (P 2 ) are equal.
3 . The sprocket system as in claim 2 , wherein distance (x) is equal to (P 1 )/2.
4 . The sprocket system as in claim 1 further comprising a second belt entrained between the first sprocket and the second sprocket.
5 . The sprocket system as in claim 1 , wherein the first teeth have a diameter (D) that is not equal to a diameter of the second teeth.
6 . The sprocket system as in claim 1 , wherein the second sprocket comprises:
a plurality of transverse first teeth ( 201 ) extending parallel to an axis of rotation (A-A) and having a pitch;
the second sprocket further comprising a plurality of transverse second teeth ( 202 ) having a pitch and disposed immediately adjacent the first teeth ( 201 ), the second teeth parallel to the first teeth;
a tooth of said first teeth ( 201 ) aligned with a radius (A) of said second sprocket; and
a tooth of said second teeth ( 202 ) disposed a distance (x) from said radius (A), wherein (x) is greater than zero.
7 . A drive system comprising:
a first sprocket ( 100 ) comprising a plurality of transverse first teeth ( 101 ) extending parallel to an axis of rotation (A-A) and having a first pitch (P 1 );
the first sprocket further comprising a plurality of transverse second teeth ( 102 ) having a second pitch (P 2 ) and disposed immediately adjacent the first teeth, the second teeth parallel to the first teeth;
a tooth of said first teeth aligned with a radius (R) of said first sprocket;
a tooth of said second teeth disposed a distance (x) from said radius (A), wherein (x) is greater than zero;
a second sprocket ( 200 ); and
a first toothed belt ( 300 ) and a second toothed belt ( 400 ), each belt entrained between the first sprocket and the second sprocket.
8 . The drive system as in claim 7 , wherein (P 1 ) and (P 2 ) are equal.
9 . The drive system as in claim 8 , wherein distance (x) is equal to (P 1 )/2.
10 . A drive system comprising:
a first sprocket ( 100 ) comprising a plurality of transverse first teeth ( 101 ) extending parallel to an axis of rotation (A-A) and having a first pitch (P 1 );
the first sprocket further comprising a plurality of transverse second teeth ( 102 ) having a second pitch (P 2 ) and disposed immediately adjacent the first teeth, the second teeth parallel to the first teeth;
a tooth of said first teeth aligned with a radius (A) of said first sprocket;
a tooth of said second teeth disposed a distance (x) from said radius (A), wherein (x) is greater than zero;
a second sprocket ( 200 ) comprising a plurality of transverse first teeth ( 201 ) extending parallel to an axis of rotation (A-A) and having a pitch;
the second sprocket further comprising a plurality of transverse second teeth ( 202 ) having a pitch and disposed immediately adjacent the first teeth ( 201 ), the second teeth parallel to the first teeth;
a tooth of said first teeth ( 201 ) aligned with a radius (A) of said second sprocket, a tooth of said second teeth ( 202 ) disposed a distance (x) from said radius (A), wherein (x) is greater than zero; and
a first toothed belt ( 300 ) and a second toothed belt ( 400 ) entrained between the first sprocket and the second sprocket.
11 . The drive system as in claim 10 , wherein (P 1 ) and (P 2 ) are equal.
12 . The drive system as in claim 11 , wherein distance (x) is equal to (P 1 )/2.