Device for establishing or releasing a coupling
AssigneeLeica Camera AG
InventorReiner Geller
Life of this patent
Estimating the term…
Abstract
A device is provided for establishing or releasing the coupling between an adjustment ring, which can be rotated on a base element by way of a detent mechanism and is provided with an adjustment shaft for optical elements, and a cylindrical index ring, which is inserted between the adjustment ring and the base element so as to rotate in relation to an index mark provided on the base element, wherein an inwardly directed ring surface is integrally formed on the edge of the index ring pointing toward the adjustment ring, at least one friction element under spring pressure is inserted between the adjustment ring and the ring surface, and the spring pressure can be removed by way of a pressure element inserted into the top face of the adjustment ring or by way of a lever mechanism.
Claims7
A device that establishes or releases a coupling, comprising:
- a base element having an index mark provided thereon;
- a detent mechanism;
- an adjustment ring, which is rotatable on the base element, the adjustment ring being secured in place via the detent mechanism and having an adjustment shaft for optical elements;
- a cylindrical index ring, which is inserted between the adjustment ring and the base element so as to rotate in relation to the index mark;
- an inwardly directed ring surface integrally formed on an edge of the cylindrical index ring pointing toward the adjustment ring;
- at least one o-ring that is inserted between the adjustment ring and the inwardly directed ring surface;
- and
- a pressure element that is inserted into a top face of the adjustment ring, wherein
- a spring pressure is removable via the pressure element.
A telescopic sight comprising:
- an optical element;
- an adjustment ring;
- a cylindrical index ring;
- a base element;
- an adjustment shaft;
- a detent mechanism;
- at least one o-ring;
- a first pressure element;
- and
- a second pressure element;
- wherein
- the adjustment ring is rotatable on the base element and secured in place via the detent mechanism,
- the cylindrical index ring is inserted between the adjustment ring and the base element so as to rotate in relation to an index mark provided on the base element,
- the adjustment shaft is connected to the adjustment ring and is used to adjust, through the base element, the optical element,
- an inwardly directed ring surface is integrally formed on an edge of the index ring pointing toward the adjustment ring,
- the at least one o-ring is subject to pressure generated by the first pressure element and is inserted between the adjustment ring and the inwardly directed ring surface, and
- the pressure applied via the first pressure element is removable by way of the second pressure element inserted into a top face of the adjustment ring.
Dependencies are inferred from the claim text.