Robotic arm driving mechanism

Details Robotic arm driving mechanism Robotic arm driving mechanism

2011-07-12

2011-07-12

Krause, Justin (Department: 3656)

Machine element or mechanism

Control lever and linkage systems

Multiple controlling elements for single controlled element

C074S490050, C901S019000

Reexamination Certificate

active

07975568

ABSTRACT:
A robotic arm assembly is provided comprising a driving mechanism including a rotor which is rotatable relative to a stator. The rotor is coaxially rotatable about a columnar shaft having a substantially hollow central longitudinal axis. A first arm having proximal and distal pivotal ends is rigidly mounted on the rotor such that the first arm is drivable to rotate by the driving mechanism. A proximal pivotal end of a second arm having proximal and distal pivotal ends is pivotally connected to the proximal pivotal end of the first arm. A first timing pulley is mounted coaxially onto the columnar shaft, and a second timing pulley which is spaced from the first pulley is drivable to rotate together with rotation of the first arm. A timing belt connects the first and second timing pulleys and is operative to rotate the second arm relative to the first arm as the first arm is driven to rotate by the driving mechanism, such that the distal pivotal ends of the first and second arms are configured to always lie along a substantially straight line.

REFERENCES:
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patent: 6709521 (2004-03-01), Hiroki
patent: 6737826 (2004-05-01), Gilchrist
patent: 6893204 (2005-05-01), Suzuki et al.
patent: 2002/0148320 (2002-10-01), Kimata et al.
patent: 2005/0115352 (2005-06-01), Tanaka

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