Patent Application
20170260799
Not Applicable
Not Applicable
Not Applicable
1. Field of the Invention
The present invention relates to weather-proof constructions for doors, windows or other fenestration members and more particularly to a construction which includes a system for sealing the bottom or side of the fenestration member to an adjacent surface such as the threshold saddle, frame or jamb when the fenestration member is closed.
2. Description of Prior Art Including Information Disclosed Under 37 CFR 1.97 and 1.98
Various methods have been used to weather strip doors, windows or other fenestration members to avoid air from entering a building or other enclosure through the gap between the fenestration member and the adjacent surfaces including the saddle, jamb or frame when the fenestration member is closed. Strips of insulating products such as metal, felt, foam, rubber or other resilient materials have been attached to the fenestration member or surfaces adjacent the fenestration member in order to seal the gap between the fenestration member and those surfaces. Metal strips with rubber gaskets have been attached to the fenestration member such that they extend over the gap to prevent air from entering beneath or around the fenestration member when the fenestration member is closed. However, regardless of the materials or configurations, stationary strips must allow sufficient clearance for the fenestration member to open and close without interference and thus cannot seal the fenestration member completely.
Elongated articles of insulating material of different sizes and shapes have also been placed against the bottom of the fenestration member to prevent air from passing under the fenestration member. However, those articles must be removed each time when the fenestration member is opened.
Because none of those methods have proved satisfactory, there is a need for a system which will create a highly effective seal between the fenestration member and adjacent surfaces of fenestration member frame, jamb or saddle when the fenestration member is closed and automatically retract when the fenestration member is unlatched to allow the fenestration member to be opened without interference.
It is, therefore, a prime object of the present invention to provide a fenestration member sealing system.
It is another object of the present invention to provide a fenestration member sealing system which includes a gasket mounted to the fenestration member which is moved from a position remote from the adjacent surface of the fenestration member frame or saddle to a sealing position abutting the adjacent surface to seal the gap between the fenestration member and the adjacent surface.
It is another object of the present invention to provide an automatic fenestration member sealing system which includes a gasket mounted to the fenestration member which is automatically moved to a position abutting the adjacent surface as the fenestration member is latched.
It is another object of the present invention to provide an automatic fenestration member sealing system which includes a gasket mounted to the fenestration member which is automatically moved to the abutting position by a mechanism including oppositely oriented triangular members with inclined surfaces which cooperate to cause the gasket to move to the abutting position as the fenestration member is latched.
It is another object of the present invention to provide an automatic fenestration member sealing system which includes a gasket mounted to the fenestration member which is automatically moved to the abutting position by a mechanism which includes a rack and gear assembly.
It is another object of the present invention to provide an automatic fenestration member sealing system which includes a gasket mounted to the fenestration member which is automatically moved to the abutting position by an internal mechanical linkage extending between the fenestration member latch control and the structure that moves the gasket as the fenestration member is latched.
In general, the above noted objects are achieved by the present invention which relates to a system for sealing a fenestration member to an adjacent frame surface such as a saddle, jamb or frame. The fenestration member has a latch and a member which controls the position of the latch to engage or disengage the fenestration member frame. The system includes a gear mounted for rotation relative to the fenestration member. A mechanical linkage connects the latch control member and the gear such that the gear is rotated from a first position, where the latch is disengaged, to a second position as the latch is moved to engage the fenestration member frame. A rack in engagement with the gear is mounted to the fenestration member for linear movement in a given direction as the gear is rotated. A first triangular member moves with the rack. A second triangular member cooperates with the first triangular member to move the second triangular member in a direction substantially perpendicular to the direction of rack movement. A gasket moves with the second cam member to a position abutting the adjacent frame surface to seal the fenestration member as the latch is moved to engage the fenestration member frame.
The first triangular member includes an inclined surface. The second triangular member includes a second inclined surface. The first inclined surface and the section inclined surface cooperate to move the gasket toward and away from the adjacent fenestration member surface.
A spring connects extends between the gasket and the fenestration member. The spring urges the first triangular member and the second triangular member toward each other.
The rack and the first triangular member are mounted on a bar. The bar extends across and is movable along the fenestration member. The bar has an opening aligned with the spring such that the spring does not interfere with the movement of the bar.
Means are provided for preventing the gasket from moving relative to the fenestration member in the direction of rack movement.
In accordance with another aspect of the present invention, a system for sealing a fenestration member to an adjacent surface such as a fenestration member saddle, jamb or frame. The fenestration member has a latch and a member which controls the position of the latch to engage or disengage the fenestration member frame. The system includes a gear mounted for rotation relative to the fenestration member. A mechanical linkage connects the latch control member and the gear such that the gear is rotated from a first position, where the latch is disengaged, to a second position as the latch is moved to engage the fenestration member frame. A rack in engagement with the gear is mounted on a first bar for linear movement in a given direction as the gear is rotated. First and second triangular member sets are provided. Each triangular member set includes a first triangular member and a second triangular member. The first triangular member of each set moves with the first bar. The second triangular member of each set is mounted on a second bar and cooperates with the first triangular member of that set to move the second bar in a direction substantially perpendicular to the direction of movement of the first bar. A gasket moves with the second bar to a position abutting the adjacent frame surface to seal the fenestration member as the latch is moved to engage the fenestration member frame.
The first triangular member of each triangular member set includes an inclined surface. The second triangular member of each of triangular member set includes a second inclined surface. The first inclined surface and the second inclined surface of the triangular members of each triangular member set cooperate to move the second bar toward and away from the adjacent surface.
The system includes first and second spaced springs connecting the first bar and the second bar. The springs urge the first triangular member and the second triangular member of each triangular member set toward each other.
The first bar includes first and second openings aligned with the first and second springs, respectively, such that the springs do not interfere with the movement of the first bar.
The system includes means for preventing the second bar from moving in a direction substantially parallel to the first bar.
The system includes a rubber layer or gasket on the second bar.
In accordance with another aspect of the present invention, a combination of a fenestration member and system for sealing the fenestration member to an adjacent surface is provided. The fenestration member is associated with a frame and includes a latch and a member for controlling the position of the latch to engage and disengage the frame. The system includes a gear mounted for rotation relative to the fenestration member between a first position and a second position. A mechanical linkage connects the latch control member and the gear such that the gear is rotated from a first position wherein the latch does not engage the frame to a second position as the latch engages the frame. The gear engages a rack to move in a given direction as the gear is rotated between its first position and its second position. A first triangular member is movable with the rack. A second triangular member cooperates with the first triangular member to move the second triangular member in a direction substantially perpendicular to the direction of rack movement. A gasket is movable with the second triangular member to position abutting the adjacent frame surface to seal the fenestration member as the latch engages the frame.
To these and to such other objects that may hereinafter appears, the present invention relates to an automatic fenestration member sealing system as described in detail in the following specification and recited in the annexed claims, taken together with the accompanying drawings, in which like numerals refer to like parts and in which:
For purposes of explanation, the preferred embodiment of the present invention is described and illustrated as it would be used to seal a fenestration member in the form of a door to an adjacent surface such as a saddle, jamb or frame against air passing around the door, through an entranceway and into a building. However, it should be understood that the present invention could be used to seal any type of fenestration member, such as a window, to an adjacent frame surface. Further, the seal created by the present invention could also be used to prevent water, dust particles, odors, fumes and the like from entering the building, as well as air.
Moreover, the present invention is intended for use with any type of fenestration member having a moveable latch control member. Such a moveable latch control member could take the form of a rotatable or moveable knob, lever or handle.
As seen in the drawings, the preferred embodiment of the sealing system of the present invention is designed for use on a fenestration member such as a door 10 which has a rotatable door knob 12 accessible from the exterior of the door. Door knob 12 controls the position of a latch 14 which is moved toward and away from an opening in door frame 16 to engage or disengage the door frame.
Inside the door is a gear 18 mounted near the bottom of the door for rotation relative to the door between a first position wherein the latch is withdrawn and the door is disengaged from the door frame such that the door can be opened (as seen in
A mechanical linkage, generally designated 20, extends within the door to connect knob 12 and gear 18. As knob 12 is rotated in a clockwise direction from its first position shown in
As best seen in
A second bar 30 is mounted below and spaced a short distance from first bar 28. Second bar 30 is connected to first bar 28 at two locations by assemblies that allow the second bar to move toward and away from first bar 28 but not in a direction parallel to first bar 28.
Each of the bar connecting assemblies includes a spring 32 and a bolt 34. In each assembly, spring 32 urges second bar 30 toward first bar 28. Each bolt 34 has an enlarged head which is captured in a bore hole in first bar 28 having an opening smaller than the bolt head such that the bolt can move up and down within the bore but not exit the bore opening. In this manner, second bar 30 and can move relative to first bar 28 only in a direction which is substantially perpendicular to the adjacent saddle surface 29.
Springs 32 urge second bar 30 toward first bar 28 in order to maintain contact between the inclined surfaces of oppositely oriented triangular shaped members. The triangular members form spaced triangular member sets, three of which are shown. Each triangular member set 36, 38 and 40 includes two triangular members which cooperate to regulate the vertical distance between the first and second bars.
Triangular member set 36 includes triangular members 36a and 36b. Triangular member set 38 includes triangular members 38a and 38b. Triangular member set 40 includes triangular members 40a and 40b. In each triangular member set, the upper triangular member 36a, 38a and 40a is attached to first bar 28 and the lower triangular member 36b, 38b and 40b is attached to second bar 30.
Rack 26 and the upper triangular members 36a, 38a and 40a of each set are attached to and move with the first bar 28, as gear 18 is rotated. Because the lower triangular members are mounted on and move with the second bar, and the second bar can only move in a direction perpendicular to the path of movement of first bar 28, as the first bar 28 moves, the upper and lower triangular members in each triangular member set cooperate to move second bar 30 toward and away from the first bar 28.
A rubber gasket or layer 42 is attached to the bottom of second bar 30. When second bar 30 is moved to its position abutting saddle surface 29, rubber gasket or layer 42 will press against the surface of the door saddle and seal the bottom of the door to the saddle surface, as illustrated in
When knob 12 is rotated to unlatch the door, mechanical linkage 20 will rotate gear 18. The rotation of gear 18 will cause rack 26 and thus first bar 28 to move back to the position seen in
While only a single preferred embodiment of the present invention has been disclosed for purposes of illustration, it is obvious that many modifications and variations could be made thereto. It is intended to cover all of those modifications and variations which fall within the scope of the present invention, as defined by the following claims.
