Balancer mechanism for rotating shaft
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United States of America Patent
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N/A
Issued Date -
Aug 24, 2006
app pub date -
Oct 20, 2003
filing date -
Oct 20, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
To provide a balancer mechanism where a balancing rotary moment, which offsets at least a part of a rotary moment operating on a rotary shaft, operates on the rotary shaft by a gas spring to reduce the rotary moment simply and reliably. The balancer mechanism for rotary shaft (8) is provided with a cam member (10) fixed to the left end of rotary shaft (3), a cam follow-up member (15) which makes contact with the cam member (10) to follow it up, and a gas spring (20) comprising a gas spring (20) elastically energizing the cam follow-up member (15) toward the cam member (10) and operates a balancing rotary moment offsetting at least a part of the rotary moment of rotary shaft on the rotary shaft (3) via the cam follow-up member (16) and the cam member (10).
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