Torsional rocker

A torsional rocker comprising:

• a movable element having opposite ends;
• a pair of torsion spring structures for rockably supporting the movable element at both of the opposite ends;
• and
• fixing means for fixing the torsion spring structures;
• wherein each of the torsion spring structures comprises a pair of leaf springs extending parallel to each other with a swing axis between the paired leaf springs;
• and
• wherein each said leaf spring has a parallelogrammatic shape, said paired leaf springs are located symmetrically with respect to the swing axis, and each said leaf spring includes a first portion near the swing axis, the first portion having two ends both of which are constrained on an axis parallel to the swing axis, and second portions on outer sides of the first portion, the second portions having two ends one of which is constrained on the swing axis and the other one of which is free, the first and second portions being integral and continuous with one another.

A torsional rocker comprising:

• a movable element having opposite ends;
• a pair of torsion spring structures for rockably supporting the movable element at both of the opposite ends;
• and
• fixing means for fixing the torsion spring structures;
• wherein each of the torsion spring structures comprises a pair of leaf springs extending parallel to each other with a swing axis between the paired leaf springs;
• and
• wherein each said leaf spring has a substantially rectangular shape, said paired leaf springs are located symmetrically with respect to the swing axis, and each said leaf spring includes a first portion near the swing axis, the first portion having two ends both of which are constrained on an axis parallel to the swing axis, and second portions on outer sides of the first portion, the second portions having two ends one of which is constrained on the swing axis and the other one of which is free, the first and second portions being integral and continuous with one another.

A torsional rocker comprising:

• a movable element having an end and a primary plane;
• a torsion spring structure for rockably supporting the movable element at only the end;
• and
• fixing means for fixing the torsion spring structure;
• wherein the torsion spring structure comprises a pair of leaf springs that extend parallel to each other and that are spaced apart from each other in a direction normal to the primary plane of the movable element;
• and
• wherein a swing axis of the movable element extends between the paired leaf springs of the torsion spring structure.

A torsional rocker comprising:

• a movable element having an end;
• a torsion spring structure for rockably supporting the movable element at only the end;
• and
• fixing means for fixing the torsion spring structure,
• wherein the torsion spring structure comprises a pair of leaf springs extending parallel to each other with a swing axis between the paired leaf springs;
• wherein each said leaf spring has a parallelogrammatic shape, said paired leaf springs are located symmetrically with respect to the swing axis, and each said leaf spring includes a first portion near the swing axis, the first portion having two ends both of which are constrained on an axis parallel to the swing axis, and second portions on outer sides of the first portion, the second portions having two ends one of which is constrained on the swing axis and the other one of which is free, the first and second portions being integral and continuous with one another.

A torsional rocker comprising:

• a movable element having an end;
• a torsion spring structure for rockably supporting the movable element at only the end;
• and
• fixing means for fixing the torsion spring structure,
• wherein the torsion spring structure comprises a pair of leaf springs extending parallel to each other with a swing axis between the paired leaf springs;
• wherein each said leaf spring has a substantially rectangular shape, said paired leaf springs are located symmetrically with respect to the swing axis, and each said leaf spring includes a first portion near the swing axis, the first portion having two ends both of which are constrained on an axis parallel to the swing axis, and second portions on outer sides of the first portion, the second portions having two ends one of which is constrained on the swing axis and the other one of which is free, the first and second portions being integral and continuous with one another.