Patent Application
20230407699
The present disclosure relates to door sills and, more specifically, to outswing ADA compliant door sills.
Outswing doors are hinged such that the door swings outward when opened. Typically, an outswing door includes a sill 510 that includes a vertical dam 520 with a weather strip 530 applied to the vertical dam 520 as shown in
The American with Disabilities Act (ADA) has requirements that limit a vertical rise of a door sill. Currently the ADA restricts vertical rises to 0.25 inches and a total sill height to 0.5 inches. Further, the ADA restricts a slope of a bevel of the sill to not steeper than 1:2 rise:run ratio. It has been difficult to provide a sill with the typical outswing configuration as shown in
This disclosure relates generally to an outswing door sill that meets the requirements of the ADA. Specifically, the outswing door sill disclosed herein does not have a vertical rise greater than 0.25 inches and has a total height of 0.5 inches or less. In addition, a slope of bevels of a top surface of the disclosed outswing door sill is 1:2 or less. The outswing door sill may include a sealing ramp that is engaged by a door sweep to form a seal with the sill. In some embodiments, when the disclosed outswing door sill is exposed to increased atmospheric pressure, the sealing surfaces may fit tighter (e.g., increased seal strength).
In an embodiment of the present disclosure, an outswing sill includes a top surface that extends from an outside edge that is configured to be positioned on an exterior side of a door when the door is in a closed configuration to an inside edge that is configured to be positioned on an inner side of the door when the door is in the closed configuration. The top surface has a sealing ram that increases in height in a direction from the outside edge towards an inside edge. The sealing ramp is configured to be engaged by a door sweep of the door to form a seal with the door sweep when the door is in the closed configuration. The entire top surface having vertical rises of 0.25 inches or less and a total height of 0.5 inches or less.
In embodiments, the outswing sill includes a first segment, a second segment, and a connector disposed between the first segment and the second segment. The first segment may extend from the outside edge to the connector and the second segment may extend from the connector to the inside edge. The first segment, the second segment, and the connector may each form a portion of the top surface.
In some embodiments, the first segment is configured to be positioned under the door in the closed configuration, the first segment may include the sealing ramp. The second segment may connect to the connector at a height greater than where the first segment connects to the connector.
In certain embodiments, the second segment has a height adjacent the connector greater than 0.25 inches and a ramp adjacent the inside edge such that a height of the second segment at the inside edge is 0.25 inches or less. The connector may provide a thermal break between the first segment and the second segment. The connector may be formed of a thermally insulative material.
In particular embodiments, the sealing ramp is configured such that the seal between the door sweep and the sealing ramp increases as the door sweep moves towards the inside edge. The outswing sill may include a sealing strip that underlies the sealing ramp. The sealing strip may be secured to an underside of the sill. The outswing sill may include a plurality of legs that extend from an underside of the outswing sill to support the top surface.
In another embodiment of the present disclosure, a door frame assembly includes a door frame, a first jamb boot, a second jamb boot, and an outswing sill disposed between the first jamb boot and the second jamb boot. The first jamb boot and the second jamb boot each support a bottom of the door frame. The outswing sill having a first side edge that is supported by the first jamb boot and a second side edge that is supported by the second jamb boot. The outswing sill has an outside edge and an inside edge that extend between the first side edge and the second side edge. The outside edge is configured to be positioned on an exterior side of a door when the door is in a closed configuration and the inside edge configured to be positioned on an inner side of the door when the door is in the closed configuration. The outswing sill has a top surface that includes a sealing ramp which increases in height in a direction from the outside edge towards the inside edge. The sealing ramp configured to be engaged by a door sweep of the door to form a seal with the door sweep when the door is in the closed configuration. The entire top surface has vertical rises of 0.25 inches or less and a total height of 0.5 inches or less.
In embodiments, the outswing sill includes a first segment, a second segment, and a connector. The first segment may extend from the outside edge of the connector and the second segment may extend from the connector to the inside edge. The first jamb boot may include an exterior surface and an interior surface opposite the exterior surface. The first jamb boot may include a stop surface that is parallel to and is disposed between the exterior surface and the interior surface. The stop surface may be configured to be engaged by an interior face of the door in the closed configuration. The stop surface may be positioned interior of the connector. The stop surface may cover a portion of the outswing sill.
In some embodiments, the first jamb boot may include a support surface that extends between the exterior surface and the interior surface. The support surface may be engaged with the first side edge of the outswing sill. The support surface may define an opening that is configured to receive a support that is engaged by the outswing sill to support the top surface of the outswing sill.
In certain embodiments, the sealing ramp is configured to increase a tightness of the seal as the door sweep moves towards the inside edge.
In another embodiment of the present disclosure, an outswing sill has an outside edge an inside edge including a first segment, a second segment, and a connector. The first segment extends from the outside edge towards the inside edge. The first segment includes a sealing ramp that increases in height as the sealing ramp extends towards the inside edge. The second segment extends from the inside edge towards the outside edge. The connector is disposed between and interconnecting the first segment and the second segment. Each of the first segment, the second segment, and the connector forming a portion of a top surface of the outswing sill. The entire top surface having vertical rises of 0.25 inches or less and a total height of 0.5 inches or less.
In embodiments, the connector forms a thermal break between the first segment and the second segment. The sealing ramp may be configured to be engaged by a door sweep to form a seal.
Further, to the extent consistent, any of the embodiments or aspects described herein may be used in conjunction with any or all of the other embodiments or aspects described herein.
Various aspects of the present disclosure are described hereinbelow with reference to the drawings, which are incorporated in and constitute a part of this specification, wherein:
The present disclosure will now be described more fully hereinafter with reference to example embodiments thereof with reference to the drawings in which like reference numerals designate identical or corresponding elements in each of the several views. These example embodiments are described so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Features from one embodiment or aspect can be combined with features from any other embodiment or aspect in any appropriate combination. For example, any individual or collective features of method aspects or embodiments can be applied to apparatus, product, or component aspects or embodiments and vice versa. The disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. As used in the specification and the appended claims, the singular forms “a,” “an,” “the,” and the like include plural referents unless the context clearly dictates otherwise. In addition, while reference may be made herein to quantitative measures, values, geometric relationships or the like, unless otherwise stated, any one or more if not all of these may be absolute or approximate to account for acceptable variations that may occur, such as those due to manufacturing or engineering tolerances or the like. As used herein, the term “vertical rise” refers to a rise where the slope is greater than 1:2 rise:run ratio.
This disclosure is generally directed to ADA compliant door sills and in particular, to ADA compliant outswing door sills. As such, the door sills disclosed herein do not include vertical rises greater than 0.25 inches, have a total height of 0.5 or less, and have bevels with a rise:run ratio of 1:2 or less.
Referring now to
The outer segment 20, the inner segment 50, and the connector 40 may be formed by molding or extrusion. For example, the outer segment 20, the inner segment 50, or the connector may be formed as an extrusion and cut to a desired length based on a width of a closure. In some embodiments, the outer segment 20, the inner segment 50, or the connector 40 may be formed as a continuous extrusion.
The outer segment 20 and/or the inner segment 50 may be formed of a thermally conductive material including, but not limited to, aluminum or steel. In some embodiments, the connector 40 is formed of an insulative material that provides a thermal break between the outer segment 20 and the inner segment 50. For example, the connector 40 may be formed of a thermoplastic, a thermoset, or rubber to form a seal with and a thermal break between the outer segment 20 and the inner segment 450. The connector 40 includes an outer ear 42 and an inner ear 44. As shown, the connector 40 is supported above a surface or threshold underlying the sill such that the connector 40 may not contact the surface or threshold. The connector 40 may include a top shelf or extension 46 that forms a portion of the top surface 16 of the sill 10. In certain embodiments, the connector 40 may be formed of a thermally conductive material similar to the outer segment 20 and the inner segment 50.
In some embodiments, the outer segment 20 and the inner segment 50 may be of integral construction with one another such that there is no connector 40 between the outer segment 20 and the inner segment 50. In particular embodiments, the outer segment 20 and the inner segment 50 may be formed of unitary or monolithic construction. In some embodiments, the outer segment 20 and the inner segment 50 may be constructed of a material having a low thermal conductivity including a thermoplastic or a thermoset such that a thermal break is not necessary between the outer segment 20 and the inner segment 50. In certain embodiments when the outer segment 20 and the inner segment 50 are formed of a thermally conductive material, the outer segment 20 and the inner segment 50 may be of integral construction without a thermal break therebetween.
The outer segment 20 is configured to be positioned on the outside of a closure and forms the outside edge 12 of the sill 10. The outer segment 20 includes an outer slot 28 that is configured to engage and form a connection with the outer ear 42 of the connector 40. The outer segment 20 includes an upper surface 26 that forms a portion of the top surface 16 of the sill 10. The upper surface 26 extends from the outside edge 12 to the outer slot 28 to form a first or outer ramp 22 adjacent the outside edge 12 and a second or sealing ramp 24 adjacent the outer slot 28. The upper surface 26 forms a low ramp that gradually increases in height from the outside edge 12 to the outer slot 28. The rise:run of the upper surface 26 is 1:2 or less. The upper surface 26 has a height of less than 0.25 inches adjacent the outside edge 12 and may have height in a range of 0.0625 inches to 0.25 inches, e.g., 0.125 inches. The upper surface 26 has a height of less than 0.5 inches adjacent the outer slot 28 and may have a height in a range of 0.25 inches to 0.5 inches, e.g., 0.4375 inches.
As shown in
The outer segment 20 may include one or more supports that extend from an underside thereof. As shown, from the outside edge 12 to the outer slot 28, the outer segment 20 includes a first or leading leg 31, a second leg 33, a first tab 35, a third leg 37, and a fourth or trailing leg 39. The first, second, third, and fourth legs 31, 33, 37, 39 may be configured to contact a threshold to support the outer segment 20 of the sill 10. In some embodiments, one or more of the legs 31, 33, 37, 39 and the first tab 35 may engage a sealing strip 70 that underlies the outer segment 20.
The outer segment 20 of the sill 10 may be secured to a sealing strip 70 that is secured to a threshold. The sealing strip 70 may be configured to underlie a door when the door is in a closed position. The sealing strip 70 may be adhered, bonded, or secured to the threshold with one or more fasteners (not shown). The sealing strip 70 may include channels 72 that receive caulk to form a seal between the threshold and the sill 10. The sealing strip 70 may include a first or leading prong 75 and a second or trailing prong 79. The leading prong 75 may be engaged by the first tab 35 of the outer segment 20 to secure the outer segment 20 to the sealing strip 70. The trailing prong 79 may engage the trailing leg 39 of the outer segment to secure the outer segment 20 to the sealing strip 70. In embodiments, the third leg 37 and/or the trailing leg 39 may be supported on the sealing strip 70.
Continuing to refer to
The inner segment 50 may include a first support 61, a second support 63, and a third support 65 that support the inner segment 50 above a surface or threshold. The first support 61 may be adjacent the inner slot 52 to support the inner segment 50 adjacent the connector 40. The second support 63 may be positioned adjacent a midpoint of the inner segment 50 to support the upper surface 54. The third support 65 may be positioned at the inside edge 18 of the sill 10 to support the inside edge 18.
With reference to
With additional reference to
The sill support wall 134 may define a portion of an inner side edge of the jamb boot 130 that faces the sill 10. A portion of the support surface 133 may extend from the sill support wall 134 to be positioned above the top surface 16 of the sill 10. Specifically, a lower surface 135 that is opposite the support surface 133 may contact the upper surface 54 of the inner segment 50 of the sill 10. As shown, an inner extremity of the lower surface 135 may conform to the trailing ramp 58 of the inner segment 50. A junction where the sill 10 meets the sill support wall 134 may be sealed such that a side of the sill 10 is sealed at the jamb boot 130. The seal between the sill 10 and the jamb boot 130 may prevent water from infiltrating around the side of the sill 10. In some embodiments, the seal between the side of the sill 10 and the jamb boot 130 may be formed with caulk or a gasket material. In certain embodiments, the seal may be formed with an adhesive gasket that is sized and dimensioned to seal the side of the sill 10 at the jamb boot 130.
The sill support wall 134 may define one or more openings 137 that receive supports for the sill 10. With particular reference to
Referring now to
The sill 210 include includes a top surface 216 that is configured to form a ramp and a portion of a seal. The sill 210 includes an outer segment 220 and an inner segment 250. As shown, the outer segment 220 and the inner segment 250 are monolithically or unitarily formed with one another. For example, the outer segment 220 and the inner segment 250 may be formed during a single extrusion process or a single molding process. The sill 210 may be formed of a thermally conductive material, e.g., aluminum or steel, or may be formed of a thermally insulative material, e.g., a thermoset or thermoplastic. In some embodiments, the sill 210 may be extruded or molded in a length longer than desired and cut to a desired length based on a width of a closure. In some embodiments, sill 210 be formed as a continuous extrusion.
The outer segment 220 is configured to be positioned on the outside of a closure and forms the outside edge 212 of the sill 210. The outer segment 220 includes an upper surface 226 that forms a portion of the top surface 216 of the sill 210. The upper surface 226 extends from the outside edge 212 to a first or outer ramp 222 adjacent the outside edge 212 and a second or sealing ramp 224 inward from the outer ramp 222. The upper surface 226 forms a low ramp that gradually increases in height from the outside edge 212 to the inner segment 220. The rise:run of the upper surface 226 is 1:2 or less. The upper surface 226 has a height of less than 0.25 inches adjacent the outside edge 212 and may have height in a range of 0.0625 inches to 0.25 inches, e.g., 0.125 inches. The upper surface 226 has a height of less than 0.5 inches adjacent the inner segment 250 and may have a height in a range of 0.25 inches to 0.5 inches, e.g., 0.4375 inches.
As shown in
Continuing to refer to
Although not explicitly shown, the outer segment 220 and the inner segment 250 may include one or more legs or supports that extend from an underside thereof similar to the outer segment 20 and the inner segment 50 detailed above. In some embodiments, one or more of the legs may engage a sealing strip that underlies a portion of the sill 210.
With reference to
While several embodiments of the disclosure have been shown in the drawings, it is not intended that the disclosure be limited thereto, as it is intended that the disclosure be as broad in scope as the art will allow and that the specification be read likewise. Any combination of the above embodiments is also envisioned and is within the scope of the appended claims. Therefore, the above description should not be construed as limiting, but merely as exemplifications of particular embodiments. Those skilled in the art will envision other modifications within the scope of the claims appended hereto.
