Positioning apparatus, in particular for adjusting lenses or lens system in optical devices

摘要

The invention relates to a positioning apparatus, comprising a rotatable spindle, a sliding member, wherein a spindle counter segment of the sliding member is displaced along the spindle when the spindle rotates, a first guide for the sliding member, which interacts with a first guide counter segment of the sliding member and, in the process, leaves the sliding member with a linear mobility along the first guide axis and a pivotability about the first guide axis, and a second guide for the sliding member, which interacts with a second guide counter segment of the sliding member and, in the process, restricts the pivotability of the sliding member about the first guide axis.

主权项

1. A positioning apparatus, comprising
a rotatable spindle, a sliding member to be positioned along a positioning axis, wherein a spindle counter segment of the sliding member and the spindle are arranged relative to one another and cooperatively matched to one another in such a way that—if there is a contact force acting relatively between the spindle counter segment and the spindle against one another—the spindle counter segment is displaced along the spindle when the spindle rotates, a first guide, defining a first guide axis extending parallel to the positioning axis, for the sliding member, wherein the first guide and a first guide counter segment of the sliding member are arranged relative to one another and cooperatively matched to one another in such a way that the sliding member is guided along the first guide axis and a linear mobility along the first guide axis and a pivotability about the first guide axis remain for the sliding member, a second guide for the sliding member, comprising a second guide element extending parallel to the positioning axis, wherein the second guide element and a second guide counter segment of the sliding member are arranged relative to one another and cooperatively matched to one another in such a way that, if a contact force, against the second guide element, acting on the second guide counter segment is present, the second guide counter segment is guided along the second guide element and the pivotability of the sliding member about the first guide axis is restricted, wherein: a clamping element arranged in such a way and causing such a force that, thereby, the sliding member—in respect of the pivotability thereof about the first guide axis, granted by the first guide—is respectively clamped between the spindle and the second guide element with the spindle counter segment thereof and the second guide counter segment thereof such that, on the basis of the force caused by the clamping element, firstly, both the spindle counter segment and the spindle and, secondly, the second guide counter segment and the second guide element are respectively pressed against one another together with anchoring of the sliding member caused by the first guide.