1. Field of the Invention
This application relates generally to window components, and more particularly to a draft guard window balancer system.
2. Description of Related Art
Fenestration products, such as windows and doors, clearly benefit from weather barriers such as weatherstripping as well as sound and tight fitting interrelational parts and components. Such weather barriers serve not only to prevent drafts, but also deter moisture entry as well as insect, dust and pollen infiltration. Over the years, energy efficiency standards as well as an overall awareness of the environmental benefits of energy efficient fenestration products have furthered the demand for proper and improved weather barriers, seals, and fittings. Many improved weatherstripping products now exist to perimeter seal windows and doors. While perimeter weatherstrips are necessary and highly beneficial, there are small openings in windows and doors that, without proper seals, can leak air, water, dust, pollen or even insects into the interior airspace of a building. Often these small openings are due to an interoperable mechanical arrangement that may be difficult to seal off without impacting the mechanical functionality between attendant components. One example of such a situation is that of the ever popular double hung window. A double hung window commonly has two sashes that travel vertically in a tracked frame. A spring assembly is often utilized to facilitate ease of vertical travel of each sash. Oftentimes, a pivot bar inserts into a balancer shoe which connects to a spring assembly to allow a sash to tilt out for cleaning. The use of a tracked frame and a traveling sash setup, while practical, creates a break in the weather barrier of the window that allows air, dust, pollen, moisture, or even insects, to travel up the track and into the building. In a strong wind, the track may even create a chimney effect where cold outside air is forced up the track and into the building through the meeting rail and sill areas. Since the sashes and related components move in the track, it has been difficult to properly weather seal this area of a double hung window. It is therefore an object of the present invention to provide a draft guard that seals the track of a double hung window from environmental factors. It is another object of the present invention to provide a draft guard that travels with a moveable window sash in a double hung window. It is another object of the present invention to provide a draft guard that works in conjunction with a pivoting sash arrangement for a double hung window. It is yet another object of the present invention to provide a draft guard that does not interfere with normal usage movement of a sash in a double hung window. It is a further object of the present invention to provide a window balancer with a draft guard. It is yet another object of the present invention to provide a method of manufacturing a double hung window.
These and other objects of the present invention will be further brought to light upon reading this specification and claims and viewing the attached drawings.
In accordance with the present invention, there is provided a draft guard for a window balancer comprising a vertical component having a first edge, a second edge, a third edge and a fourth edge; a horizontal component having a first edge, a second edge, a third edge and a fourth edge; the second edge of the horizontal component being joined to the second edge of the vertical component at a generally right angle; the horizontal component further having a first cut and a second cut in proximity to and generally parallel to the second edge; and the vertical component having a pivot bar hole.
The foregoing paragraph has been provided by way of introduction, and is not intended to limit the scope of the invention as described by this specification, claims, and the attached drawings.
The invention will be described by reference to the following drawings, in which like numerals refer to like elements, and in which:
The present invention will be described in connection with several preferred embodiments; however, it will be understood that there is no intent to limit the invention to the embodiments described. On the contrary, the intent is to cover all alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by this specification, claims, and the attached drawings.
Balances or balancers, as used herein, describe the mechanical component or components that contain a spring or balance assembly that connects a window sash to a master frame to allow for ease of operation. While such balances or balancers are commonly used with double hung windows, other window arrangements may benefit from such hardware such as, for example, sliding windows. Windows may be wood, vinyl, aluminum, fiberglass, or the like. A window balancer configuration allows a window sash to be tilted in a plane outside its normal operating plane to allow for cleaning.
The present invention solves the problem of a draft or chimney effect originating from the hollow chamber tracks in a window frame and the space between a sash and master frame, by adding a draft guard component to a balance or balancer. The draft guard mechanically attaches to a constant force balancer and the balancer pivot bar at the balancer shoe of a block and tackle balancer or a spiral balancer. The present invention includes not only the draft guard, but a balance or balancer having a draft guard, along with a method of manufacturing fenestration products that have a draft guard. In addition, the present invention includes modifications, variations, additions, improvements and enhancements to the present invention that will be known or contemplated after reading this specification and the accompanying drawings.
For a better understanding of the present invention and the various embodiments described and envisioned herein, a double hung window is depicted in
Lastly,
The draft guard is used in a fenestration product such as a double hung window. It may be incorporated into the fenestration product during manufacture and assembly, or may, in some embodiments of the present invention, be added to an existing fenestration product either by fastening the draft guard to an existing balancer or balancer shoe, or replacing the balancer with a new balancer or new balancer shoe having a draft guard. To manufacture a double hung window using the present invention, a sash side of the balancer and pivot bar having a draft guard is attached to a first sash, a frame side of a balancer is attached to a double hung window frame, the first sash is installed in the double hung window frame, and a spring is connected between the sash side of the balancer having a draft guard and the frame side of the balancer. Modifications and variations to this manufacturing process may also be contemplated after reading this specification and viewing the attached drawings.
It is, therefore, apparent that there has been provided, in accordance with the various objects of the present invention, a draft guard for a balancer. While the various objects of this invention have been described in conjunction with preferred embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. Accordingly, it is intended to embrace all such alternatives, modifications and variations that fall within the spirit and broad scope of the present invention as defined by this specification, claims and the attached drawings.
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Number | Date | Country | |
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Parent | 13155382 | Jun 2011 | US |
Child | 14259986 | US |