Garage door carrier system
OwnerHermel R. Cloutierinventor
Life of this patent
Estimating the term…
Abstract
A garage door carrier system carries an overhead garage door between a closed position blocking entry of a vehicle into a garage, and an open position allowing entry of the vehicle into the garage. The garage door is in rolling engagement with a track that guides the garage door. A lever, rotating about a pivot, has a counterweight at a first end and is rotatably connected to the garage door at a second opposite load end. The counterweight provides in-force at the first end that translates as out-force at the load end as the lever rotates about the pivot to carry the garage door between the closed position and the open position.
Claims19
A carrier system for carrying a garage door between a defined closed position in which the garage door is generally vertical and blocks entry of a vehicle into a garage through an opening, and a defined open position in which the garage door is generally horizontal and allows entry of the vehicle into the garage through the opening, the carrier system comprising:
- a track for guiding the garage door by rolling engagement with the track;
- a lever rotatable about a pivot, the lever having an in-lever arm at a first side of the pivot and an out-lever arm at a second, opposing, side of the pivot, the out-lever arm extending from the pivot to a load end, the load end rotatably connected to the garage door;
- and
- a counterweight connected to the in-lever arm to provide force at the in-lever arm, translated as force at the load end of the out-lever arm, as the lever rotates about the pivot, to carry the garage door between the defined closed position and the defined open position;
- wherein the counterweight is connected to the in-lever arm so that an obtuse angle defined between a reference axis passing through the centre of gravity of the counterweight and the pivot and a vertical axis passing through the pivot is equal to an angle of rotation of the out-lever arm about the pivot as the lever rotates about the pivot to carry the garage door between the defined closed position and the defined open position.
A carrier system for carrying a garage door between a defined closed position in which the garage door is generally vertical and blocks entry of a vehicle into a garage through an opening, and a defined open position in which the garage door is generally horizontal and allows entry of the vehicle into the garage through the opening, the carrier system comprising:
- a track for guiding the garage door by rolling engagement with the track;
- a lever rotatable about a pivot axis, having load end and rotatably interconnected with the garage door to move the garage door on the track;
- a counterweight connected to the lever to provide a force at the load end, as the lever rotates about the pivot axis, to carry the garage door between the defined closed position and the defined open position;
- wherein said counterweight is mounted so that the center of gravity of the counterweight travels a defined angle between 120° and 150° about said pivot axis, as said door moves from the defined closed position to said defined open position.
Dependencies are inferred from the claim text.