Actuator assembly having optimized 4-bar linkage type...

Details Actuator assembly having optimized 4-bar linkage type... Actuator assembly having optimized 4-bar linkage type...

2005-11-02

2008-03-25

Korzuch, William (Department: 2627)

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Reexamination Certificate

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07349183

ABSTRACT:
An actuator arm of an actuator assembly includes a 4-bar linkage structure defined by a trapezoidal shaped opening formed between a front end of the actuator arm and a pivot shaft. A first rounded extension portion and a second rounded extension portion are formed at two corners adjacent to the pivot shaft of the opening, respectively, and a third rounded extension portion is formed at two corners adjacent to a front end of the opening, and hinges H1, H2, H3and H4are formed at the actuator arm by the first, second and third extension portions. Design factors determining a shape of the opening are optimized to meet the following relations for the structure of the 4-bar linkage: W(cos β−1)+Z(cos α−1)=δx=0, W sin β+Z sin α=δy=0.

REFERENCES:
patent: 5526205 (1996-06-01), Aoyagi et al.
patent: 6219203 (2001-04-01), Arya et al.
patent: 6297933 (2001-10-01), Khan et al.
patent: 6310746 (2001-10-01), Hawwa et al.
patent: 6989968 (2006-01-01), Takasugi et al.

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