Differential lever actuator including differentially force-trans

Details Differential lever actuator including differentially force-trans Differential lever actuator including differentially force-trans

1984-02-23

1985-05-21

Beha, Jr., William H.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

73517AV, 346139C, H01V 700

Patent

active

045188874

ABSTRACT:
In a differential lever actuator comprising transmission members (41, 42) for differentially transmitting oppositely sensed angular displacements from first and second weight points (P1, P3) of first and second lever members (31, 32) to first and second predetermined points (P2, P4) of a differential lever member (41), a distance between midpoints (S, T) between the first weight and predetermined points and between the second weight and predetermined points is kept constant irrespective of the angular displacements. Preferably, at least one transmission member should be perpendicular to a line passing through the related weight point and a fulcrum point (Q or R) of the associated one of the first and second lever members. When carried by the differential lever member for print of a dot, a rod should preferably have an axis passing through a point of intersection of the transmission members. Alternatively, the differential lever member should have a center of a rotational component of the distance (ST) at a point of percussion related to a reaction resulting from print of the dot. As a further alternative, at least one transmission member should be thicker than 0.05 times a length between the related weight and predetermined points.

REFERENCES:
patent: 3649857 (1972-03-01), Knappe
patent: 4104920 (1978-08-01), Albert et al.
patent: 4349183 (1982-09-01), Wirt et al.
patent: 4435666 (1984-03-01), Fukui et al.

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