US 11,867,274 B2
Apparatus for securing a sprocket to a sprocket carrier
James Hobbs, Bristol (GB); and Lee Michele Ricciardi, Berkeley (GB)
Appl. No. 17/264,285
Filed by James Hobbs, Bristol (GB); and Lee Michele Ricciardi, Berkeley (GB)
PCT Filed Aug. 9, 2019, PCT No. PCT/GB2019/052238
§ 371(c)(1), (2) Date Jan. 28, 2021,
PCT Pub. No. WO2020/030922, PCT Pub. Date Feb. 13, 2020.
Claims priority of application No. 1812953 (GB), filed on Aug. 9, 2018.
Prior Publication US 2021/0277986 A1, Sep. 9, 2021
Int. Cl. F16H 55/30 (2006.01); F16B 35/04 (2006.01); F16H 55/10 (2006.01)
CPC F16H 55/30 (2013.01) [F16B 35/041 (2013.01); F16H 55/10 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A sprocket assembly, comprising:
a sprocket carrier,
a sprocket, and
a securing arrangement for releasably securing the sprocket to the sprocket carrier;
each of the sprocket carrier and the sprocket defines a plurality of fixing apertures for use in securing the sprocket to the sprocket carrier, and
said securing arrangement comprises a plurality of fixing devices;
each of said plurality of fixing devices comprises a bolt and a nut, the bolt having a head portion, a threaded shank portion and a knurled shank portion, the knurled shank portion disposed between the threaded shank portion and the head portion, and the nut engageable with the threaded shank portion of the bolt;
the bolt of each of said plurality of fixing devices insertable through one of the plurality of fixing apertures of the sprocket carrier into a fitted condition in which the bolt is retained within the sprocket carrier by an interference fit between the knurled shank portion of the bolt and the sprocket carrier; and
said sprocket defines a plurality of first fixing apertures for use in releasably securing the sprocket to the sprocket carrier, each of said plurality of first fixing apertures of the sprocket comprises a first portion and a second portion, the second portion extending in a first circumferential direction from the first portion, the first portion shaped to allow the passage of a nut of one of the plurality of fixing devices therethrough and the second portion shaped to prevent the passage of said nut of said one of the plurality of fixing devices therethrough.