Title:
SPROCKET
Document Type and Number:
WIPO Patent Application WO/2020/213578
Kind Code:
A1
Abstract:
A bottom land (13) has a first arc face (13a) having a first radius (R) and a second arc face (13b) having a first radius (R'). An operating flank (15) has a third arc face (27) connected to the first arc face (13a) and having a second radius (r). A non-operating flank (16) has a fourth arc face (31) connected to the second arc face (13b) and having a third radius (r') larger than the second radius (r). The center angle (A) of the first arc face (13a) is larger than the center angle (A') of the second arc face (13b). The center (O3) of the third arc face (27) is closer to the center of a sprocket (11) than the center (O4) of the fourth arc face (31) is.
Inventors:
HAYASHI KOHEI (JP)
Application Number:
PCT/JP2020/016349
Publication Date:
October 22, 2020
Filing Date:
April 13, 2020
Export Citation:
Assignee:
DAIDO KOGYO KK (JP)
International Classes:
F16H55/30
Foreign References:
| JP2009275788A | 2009-11-26 | |||
| JP2002340142A | 2002-11-27 | |||
| JP2005511983A | 2005-04-28 |
Attorney, Agent or Firm:
CHIKASHIMA & ASSOCIATES (JP)
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