BALANCER MECHANISM FOR ROTATING SHAFT

Title:

BALANCER MECHANISM FOR ROTATING SHAFT

Document Type and Number:

WIPO Patent Application WO/2016/143408

Kind Code:

A1

Abstract:

Provided is a balancer mechanism for a rotating shaft that can minimize displacement of the shaft center of a rotating shaft without augmenting a bearing member supporting the rotating shaft. A balancer mechanism (20) for a rotating shaft comprises an assist torque generating means (21) to generate assist torque to offset at least a portion of an unbalanced torque. The assist torque generating means (21) comprises a cam member (24) fixed to a rotating shaft (4), a cam follower member (25) that abuts and follows the cam member (24), and a gas spring (27) that applies the assist torque to the rotating shaft (4) via the cam follower member (25) and the cam member (24). The balancer mechanism is provided with a reactive force generating means (22) for generating a balancing moment that offsets a moment that inclines the rotating shaft (4) in a direction that separates the shaft from the assist torque generating means (21) around a bearing member (9) by way of the biasing force of the gas spring (27), wherein the reactive force generating means (22) is provided on the side approximately opposite to the assist torque generating means (21) with the rotating shaft (4) therebetween.

Inventors:

KITAURA ICHIRO (JP)
NINOMIYA TAKASHI (JP)

Application Number:

PCT/JP2016/052871

Publication Date:

September 15, 2016

Filing Date:

February 01, 2016

Export Citation:

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Assignee:

PASCAL ENG CORP (JP)

International Classes:

B23Q1/72; B23Q11/00; F16F15/16

Domestic Patent References:

WO2005038291A1	2005-04-28
WO2008029453A1	2008-03-13

Foreign References:

JPH1177460A

1999-03-23

Other References: