TORQUE TRANSMISSION STRUCTURE, TRACTION DRIVE TRANSMISSION DEVICE, AND STEERING DEVICE FOR VEHICLE

Title:

TORQUE TRANSMISSION STRUCTURE, TRACTION DRIVE TRANSMISSION DEVICE, AND STEERING DEVICE FOR VEHICLE

Document Type and Number:

WIPO Patent Application WO/2006/090796

Kind Code:

A1

Abstract:

A variable-speed traction drive transmission device compact and having high durability. The traction drive transmission device (10) varies, by the use of traction of rolling bodies (K) arranged between an input shaft (Si) and an output shaft (So), the speed of rotation of the input shaft (Si) into a desired transmission ratio to output the result by the output shaft (So). The traction drive transmission device (10) is placed inclined so that the rotation axes of the rolling bodies (K) are not orthogonal to the axes of the input shaft (Si) and the output shaft (So), and has a load regulation cam (50) and a transmission ratio variation mechanism of a differential type using a worm gear (55). The load regulation cam (50) automatically varies a preload applied to the rolling bodies (K) according to torque of the input shaft (Si). The transmission ratio variation mechanism is connected to a retainer (40) as the traction input-output member of the rolling bodies (K) and varies a transmission ratio by controlling the speed of rotation of the retainer (40).

Inventors:

TOZAKI YASUYOSHI (JP)
YOSHIMI TAKESHI (JP)
UMEDA AKIHIKO (JP)
SONOBE HIROYUKI (JP)
SHIOTSU ISAMU (JP)
HIRAYAMA TAKAYOSHI (JP)

Application Number:

PCT/JP2006/303314

Publication Date:

August 31, 2006

Filing Date:

February 23, 2006

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)
TOZAKI YASUYOSHI (JP)
YOSHIMI TAKESHI (JP)
UMEDA AKIHIKO (JP)
SONOBE HIROYUKI (JP)
SHIOTSU ISAMU (JP)
HIRAYAMA TAKAYOSHI (JP)

International Classes:

F16H13/08; F16H15/50

Foreign References:

JPH06288453A	1994-10-11
JP2004116670A	2004-04-15

Other References: