Lock Cylinder
AssigneeHuf Hülsbeck & Fürst GmbH & Co. KG
InventorMatthias Löw
Life of this patent
Estimating the term…
Abstract
A lock cylinder includes a housing, in which a sleeve having a cylinder core accommodated therein is rotatably supported. The cylinder core has spring-loaded tumblers forming a form closure with recesses arranged in the sleeve when a key engaging the tumblers is removed. Inside the housing, the sleeve is coupled to a coupling element by means of a disengaging sleeve. The coupling element is supported inside the housingand connected to a bearing in a rotationally-fixed manner. The bearing supports an output element. At least one of the sleeve and the coupling element forms a form closure with the bearing to block the rotation of the output element if an improper object is used in operative connection with the cylinder core.
Claims19
A lock cylinder comprising:
- a housing:
- a first sleeve rotatably mounted in said housing;
- a cylinder core accommodated in said sleeve and having spring-loaded tumblers engageable with said first sleeve, wherein engagement of said tumblers with said first sleeve resists rotation of said first sleeve in said housing;
- a coupling element mounted in said housing;
- a second sleeve coupling said coupling element to said first sleeve;
- and
- a bearing rotatably fixed to said coupling element and supporting an output element, wherein when said tumblers engage said first sleeve, one of said coupling element and said second sleeve engage said bearing to resist rotation of said output element, and when said tumblers disengage from said first sleeve, said at least one of said coupling element and said second sleeve disengage from said bearing to allow rotation of said output element.
A lock cylinder comprising:
- a housing:
- a first sleeve rotatably mounted in said housing;
- a cylinder core accommodated in said sleeve and having spring-loaded tumblers engageable with said first sleeve, wherein engagement of said tumblers with said first sleeve resists rotation of said first sleeve in said housing;
- a coupling element mounted in said housing;
- a second sleeve coupling said coupling element to said first sleeve, wherein when said tumblers engage said first sleeve, one of said coupling element and said second sleeve engage said housing to resist longitudinal movement of said second sleeve, and when said tumblers disengage from said first sleeve, said at least one of said coupling element and said second sleeve disengage from said housing to allow longitudinal movement of said second sleeve;
- and
- a bearing rotatably fixed to said coupling element and supporting an output element.
A lock cylinder comprising:
- a housing:
- a first sleeve rotatably mounted in said housing;
- a cylinder core accommodated in said sleeve and having spring-loaded tumblers engageable with said first sleeve, wherein engagement of said tumblers with said first sleeve resists rotation of said first sleeve in said housing;
- a coupling element mounted in said housing;
- a second sleeve coupling said coupling element to said first sleeve, wherein when said tumblers engage said first sleeve, one of said coupling element and said second sleeve engage said housing to resist longitudinal movement of said second sleeve, and when said tumblers disengage from said first sleeve, said at least one of said coupling element and said second sleeve disengage from said housing to allow longitudinal movement of said second sleeve;
- and
- a bearing rotatably fixed to said coupling element and supporting an output element, wherein when said tumblers engage said first sleeve, one of said coupling element and said second sleeve engage said bearing to resist rotation of said output element, and when said tumblers disengage from said first sleeve, said at least one of said coupling element and said second sleeve disengage from said bearing to allow rotation of said output element.
Dependencies are inferred from the claim text.