Title:
TRACTION DRIVE MECHANISM
Document Type and Number:
WIPO Patent Application WO/2012/014611
Kind Code:
A1
Abstract:
Assuming that N1 and N2 are the respective number of pinion rollers (23, 63); ρ1 is the ratio between the inner diameter of a ring roller (22) and the outer diameter of a sun roller (21); ρ2 is the ratio between the inner diameter of a ring roller (62) and the outer diameter of a sun roller (61); and it holds that N1=3 and (ρ1+1)×(ρ2+1) ≥ 24+16×20.5,
if N2=3, then it holds that
ρ1 ≥ 0.102×(ρ1+1)×(ρ2+1)+1.196, and
ρ1 ≤ min[0.204×(ρ1+1)×(ρ2+1)+3.123, 7+4×30.5], and
if N2=4, then it holds that
ρ1 ≥ (2-20.5)×(ρ1+1)×(ρ2+1)/4-1, and
ρ1 ≤ min[0.185×(ρ1+1)×(ρ2+1)+1.320, 7+4×30.5].
Inventors:
MIZUNO YOSHIHIRO (JP)
HAYAKAWA KISABURO (JP)
NISHIZAWA HIROYUKI (JP)
YAMAGUCHI HIROYUKI (JP)
SUNAMI KIYOKAZU (JP)
HAYAKAWA KISABURO (JP)
NISHIZAWA HIROYUKI (JP)
YAMAGUCHI HIROYUKI (JP)
SUNAMI KIYOKAZU (JP)
Application Number:
PCT/JP2011/064649
Publication Date:
February 02, 2012
Filing Date:
June 27, 2011
Export Citation:
Assignee:
TOYOTA CHUO KENKYUSHO KK (JP)
MIZUNO YOSHIHIRO (JP)
HAYAKAWA KISABURO (JP)
NISHIZAWA HIROYUKI (JP)
YAMAGUCHI HIROYUKI (JP)
SUNAMI KIYOKAZU (JP)
MIZUNO YOSHIHIRO (JP)
HAYAKAWA KISABURO (JP)
NISHIZAWA HIROYUKI (JP)
YAMAGUCHI HIROYUKI (JP)
SUNAMI KIYOKAZU (JP)
International Classes:
F16H13/08
Foreign References:
| JPH0942398A | 1997-02-10 | |||
| JPS5022970A | 1975-03-12 | |||
| JP2007071248A | 2007-03-22 | |||
| JPS6196040U | 1986-06-20 | |||
| JPS6174952A | 1986-04-17 | |||
| JPH0754946A | 1995-02-28 | |||
| JPH05332413A | 1993-12-14 | |||
| JPH0721303A | 1995-01-24 |
Other References:
AKIHIKO KONO: "Regarding planetary roller type traction drive speed reducing unit for printing machine", KOYO ENGINEERING JOURNAL NO. 165, 2004, pages 60 - 64
Attorney, Agent or Firm:
YKI Patent Attorneys (JP)
Patent business corporation YKI international patent firm (JP)
Patent business corporation YKI international patent firm (JP)
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Claims: