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US 2026/0055650 A1Published application
Door closer casings
AssigneeSchlage Lock Company LLC
InventorsMitchell T. Barbon, Jonah M. Pattar
Life of this patent
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Abstract
An example door closer includes a casing and a pinion rotatably mounted to the casing. The pinion is operable to rotate through a plurality of movement zones, and the door closer is configured to exert forces on the pinion as the pinion moves through the plurality of movement zones. The door closer further includes a plurality of adjustment mechanisms, each operable to adjust the force exerted on the pinion as the pinion travels through a corresponding movement zone. The casing is provided with indicia that correlate each of the adjustment mechanisms to the corresponding movement zone.
Claims20
A door closer, comprising:
- a casing defining a hydraulic chamber, wherein the hydraulic chamber contains a hydraulic fluid;
- a pinion rotatably mounted to the casing;
- a rack gear positioned in the hydraulic chamber and engaged with the pinion, the rack gear dividing the hydraulic chamber into a plurality of sub-chambers, wherein the rack gear is movable through a plurality of movement zones in a first direction and an opposite second direction;
- a spring disposed in the first chamber, the spring urging the rack gear in the first direction;
- a plurality of hydraulic passages defined by the casing such that the hydraulic fluid flows between the plurality of sub-chambers as the rack gear moves through the plurality of movement zones;
- a plurality of adjustable valves, wherein each adjustable valve corresponds to a respective one of the movement zones, and wherein each adjustable valve is operable to adjust an effective cross-section of a corresponding one of the hydraulic passages to adjust a hydraulic resistance provided to the rack gear as the rack gear moves through the respective one of the movement zones;
- a plurality of valve function indicia positioned on the casing, wherein each valve function indicium is associated with a corresponding one of the adjustable valves and relates to the respective one of the movement zones;
- and
- a plurality of valve adjustment indicia positioned on the casing, wherein each valve adjustment indicium is associated with a corresponding one of the adjustable valves and relates a first rotational direction of the valve with a first adjustment effected by rotating the adjustable valve in the first rotational direction.
6 more elements
A door closer, comprising:
- a casing;
- a pinion rotatably mounted to the casing, wherein the pinion is operable to rotate through a plurality of movement zones including a first movement zone and a second movement zone;
- means for exerting forces on the pinion as the pinion rotates through the plurality of movement zones, wherein the means for exerting forces is configured to exert a first force on the pinion as the pinion rotates through the first movement zone, and wherein the means for exerting forces is configured to exert a second force on the pinion as the pinion rotates through the second movement zone;
- a plurality of adjustment mechanisms, the plurality of adjustment mechanisms comprising:
- a first adjustment mechanism mounted to the casing and operable to adjust the first force;
- and
- a second adjustment mechanism mounted to the casing and operable to adjust the second force;
- a plurality of adjustment mechanism function indicia, the plurality of adjustment mechanism function indicia comprising:
- a first adjustment mechanism function indicium provided to the casing and associated with the first adjustment mechanism;
- and
- a second adjustment mechanism function indicium provided to the casing and associated with the second adjustment mechanism;
- and
- a plurality of movement zone indicia, the plurality of movement zone indicia comprising:
- a first movement zone indicium representing the first movement zone;
- and
- a second movement zone indicium representing the second movement zone;
- wherein each of the first adjustment mechanism function indicium and the first movement zone indicium includes a first shared indicium, thereby indicating that the first adjustment mechanism corresponds to the first movement zone;
- and
- wherein each of the second adjustment mechanism function indicium and the second movement zone indicium includes a second shared indicium different from the first shared indicium, thereby indicating that the second adjustment mechanism corresponds to the second movement zone.
16 more elements
Dependencies are inferred from the claim text.