The present invention relates to an anchor for a roof for use with a fall protection safety system.
Anchor devices, such as roof anchors, are commonly used as anchorage points for fall protection safety systems while performing roof construction or repair. Fall protection safety systems include many types of fall arrest and restraint equipment. For fall arrest purposes, the user dons a full body safety harness and connects to the roof anchor with a suitable type of connecting system such as an energy absorbing lanyard or a self-retracting lifeline when there is a risk of a free fall occurring before the fall is arrested. For restraint purposes, the user dons a full body safety harness and connects to the roof anchor with a lanyard or other suitable restraint device to restrain or tether the user from reaching a hazard, such as the leading edge of the roof, when there is no risk of a vertical free fall. Roof anchors may be temporary or permanent.
Prior art roof anchors secured to a roof structure such as a truss tend to peel away from the roof proximate the fasteners when subjected to a fall at an angle other than straight down from the roof anchor. Therefore, it is desired to provide a roof anchor that does not peel away from the roof when subjected to the forces of a fall.
In one aspect of the present invention, a roof anchor for use with a fall protection system includes a base member, a first interruption, a second interruption, and a connector. The base member has a first end, a second end, and an intermediate portion interconnecting the first end and the second end. The first end and the second end are proximate one another at an end opposite the intermediate portion. The first interruption is proximate the junction of the first end and the intermediate portion, and the second interruption is proximate the junction of the second end and the intermediate portion. The first interruption and the second interruption assist in bending the first end and the second end outward from one another and from the intermediate portion, which extends outward from the first end and the second end. The connector is operatively connected to the intermediate portion proximate an opposing end relative to the first end and the second end thereby extending outward from the first end and the second end.
In another aspect of the present invention, an anchor for a roof having a truss for use with a fall protection system includes a first leg having a first plurality of apertures, a second leg having a second plurality of apertures, an intermediate portion interconnecting the first leg and the second leg, a connector, and an interruption. The first leg, the second leg, and the intermediate portion are integral, and the intermediate portion is folded thereby creating two layers of the intermediate portion at one end and positioning the first leg and the second leg proximate one another at another end. The connector is positioned proximate the one end between the two layers of the intermediate portion. The interruption is proximate junctions of the intermediate portion and each of the first leg and the second leg. The interruption assists in bending the first leg and the second leg outward from one another and from the intermediate portion thereby being bendable to accommodate various angles of the roof and the truss. The first plurality of apertures and the second plurality of apertures are configured and arranged to align with the truss and through which fasteners are secured to the truss to operatively connect the first leg and the second leg thereto. The connector is captured between the two layers of the intermediate portion, the first leg, the second leg, and the truss. The intermediate portion and the connector extend outward from the first leg, the second leg, and the truss.
In another aspect of the present invention, an anchor assembly includes a roof having a truss, a first leg having a first plurality of apertures, a second leg having a second plurality of apertures, an intermediate portion interconnecting the first leg and the second leg, a plurality of fasteners, and a connector. The intermediate portion is at one end and the first leg and the second leg are proximate one another at another end opposite the intermediate portion. The first leg and the second leg extend outward from one another and from the intermediate portion, and the first plurality of apertures and the second plurality of apertures align with the truss. The plurality of fasteners extend through the first plurality of apertures and the second plurality of apertures to fasten the first leg and the second leg to the truss of the roof. The connector is operatively connected to the intermediate portion proximate an opposing end of the intermediate portion relative to the first leg and the second leg thereby extending outward from the first end, the second end, and the truss.
A preferred embodiment roof anchor constructed according to the principles of the present invention is designated by the numeral 100 in the drawings. The roof anchor 100 provides an anchorage point for various types of fall protection safety systems such as fall arrest and restraint equipment.
The roof anchor 100 is configured and arranged to be anchored to at least one truss 111 of a roof 110, as shown in
The roof anchor 100 includes a base member 101 and a connector 103 as shown in
The connector 103 is preferably a D-ring having a ring portion 103a and a bar portion 103b. The bar portion 103b of the connector 103 is inserted between the first leg 101a and the second leg 101b and the two layers of the intermediate portion 101c to be positioned within the loop 102 and captured therein between the fold and the two layers of the intermediate portion 101c as shown in
Proximate the junction of the intermediate portion 110c and each of the first leg 101a and the second leg 101b are interruptions 104a and 104b, respectively, which are preferably notches on each side of the respective first leg 101a and second leg 101b but it is recognized that perforations or any other suitable interruptions facilitating the bending of the first leg 101a and the second leg 101b may be used. The first leg 101a and the second leg 101b are bent proximate the interruptions 104a and 104b so that they extend outward from the intermediate portion 101c and away from one another. The first leg 101a and the second leg 101b are angled to accommodate various roof pitches such as peaked, sloped, or flat. The intermediate portion 101c may also be bent proximate the interruptions 104a and 104b toward one of the legs to conform the roof anchor 100 to the shape of the roof 110.
The first leg 101a and the second leg 101b each include a plurality of apertures 105a and 105b, respectively, which are preferably pre-drilled holes that facilitate anchorage to the truss 111 of the roof 110 using fasteners 107. The fasteners 107 extend through the apertures 105a and 105b to anchor each leg 101a and 101b to the truss 111. The first leg 101a and the second leg 101b preferably each include four staggered apertures. The intermediate portion 101c includes apertures 106a and 106b proximate the loop 102 and the connector 103, an aperture being in each layer of the intermediate portion 101c and in alignment with the other aperture. The apertures 106a and 106b are preferably pre-drilled holes that facilitate anchorage to the truss 111 of the roof 110 using fastener 108. The fastener 108 extends through the apertures 106a and 106b to anchor the intermediate portion 101c to the truss 111. Fasteners 107 and 108 are preferably galvanized, vinyl-coated, or cement-coated nails, but it is recognized that the fasteners may be any suitable fastener known in the art.
The dimensions of the roof anchor 100 are preferably approximately ⅝ inch by 4 inches by 17 inches. The total capacity of the roof anchor 100 is preferably 310 pounds, and the roof anchor 100 is capable of withstanding approximately 3,600 pounds of force in any direction of loading. The roof anchor 100 is preferably used as a permanent roof structure, and the base member 101 may be covered with shingles 114 or flashing to protect the roof 110 from water damage as well as to help conceal the roof anchor 100, leaving only the connector 103 exposed and readily accessible. The roof anchor 100 provides an anchorage point during construction of the roof 110 and during subsequent repair of the roof 110 for fall protection safety systems. To connect to the roof anchor 100, snap hooks, carabineers, or other suitable connectors well known in the art may be used.
There are many ways known in the art for using the roof anchor 100 with fall protection safety systems. Two examples are shown in
In use, the roof anchor 100 is in a flattened condition for compactness during shipping. The first leg 101a and the second leg 101b of the base member 101 are bent outward and spread apart proximate the interruptions 104a and 104b to correspond with the angle of the surface, the roof 110, upon which the roof anchor 100 will be mounted. This is shown by arrows A in
The intermediate portion 101c is bent downward toward either the first leg 101a or the second leg 101b to also conform to the slope or the angle of the roof 110. This is shown by arrow B in
Preferably, the roof anchors 100 should be positioned at least 6 feet from any exposed roof edge and should be spaced approximately 8 feet apart. Preferably, only one fall protection safety system should be connected to the roof anchor 100 at a time, and the user should stay within 30 degrees from the roof anchor 100 to minimize swing falls.
The intermediate portion 101c preferably deforms when subjected to a load should a fall occur which allows the fasteners 107 to be subjected to shearing loads, thereby providing greater load-carrying capacity than pulling or prying on the fasteners 107. Should a fall occur, the anchor 100 tends to twist proximate the interruptions 104a and 104b, which prevents the fasteners 107 from being pulled out of the truss 111 as tends to occur with prior art roof anchors. The ninth fastener 108 will disengage under load allowing this deformation, which provides visual indication that the roof anchor 100 has been subjected to a load and should be replaced. The connector 103 is preferably centered on the length of the base member 101 with fasteners 107 through the base member 101 on both sides of the connector 103, which provides greater load-carrying capacity than if a connector were located at each end of the base member 101. The connector 103 may be positioned and repositioned toward either of the legs 101a and 101b proximate one end of the anchor 100 in its assembled form which allows roofing materials to be installed to cover the anchor 100. The connector 103 is free to slide within the loop 102 of the intermediate portion 101c, allowing the load to be balanced between the fasteners 107 securing the legs 101a and 101b of the anchor 100 to the roof 110, which provides greater load-carrying capacity than a fixed connector.
The above specification, examples and data provide a complete description of the manufacture and use of the composition of the invention. Since many embodiments of the invention can be made without departing from the spirit and scope of the invention, the invention resides in the claims hereinafter appended.
Number | Name | Date | Kind |
---|---|---|---|
175415 | Bunker | Mar 1876 | A |
600478 | Cottier | Mar 1898 | A |
834924 | Meech | Nov 1906 | A |
1048501 | Dawson | Dec 1912 | A |
1127832 | Voigt | Feb 1915 | A |
1130438 | Schmidt | Mar 1915 | A |
1509781 | Roth | Sep 1924 | A |
1516292 | Holstein | Nov 1924 | A |
D87730 | Silverman et al. | Sep 1932 | S |
2406270 | Torell et al. | Aug 1946 | A |
2606727 | De Haven | Aug 1952 | A |
2686920 | Meeker | Aug 1954 | A |
2851135 | Woodruff Sr | Sep 1958 | A |
3165168 | Rose | Jan 1965 | A |
4121688 | Lirakis | Oct 1978 | A |
4138806 | Miller | Feb 1979 | A |
4175304 | Bentley | Nov 1979 | A |
D254534 | Glynn et al. | Mar 1980 | S |
4249713 | Glynn et al. | Feb 1981 | A |
4298091 | Anderson | Nov 1981 | A |
4365391 | Chapalain | Dec 1982 | A |
4396091 | Anderson | Aug 1983 | A |
4478311 | Anderson | Oct 1984 | A |
4632105 | Barlow | Dec 1986 | A |
D298867 | Herron | Dec 1988 | S |
5010850 | Sailer | Apr 1991 | A |
5014470 | Lane et al. | May 1991 | A |
5146876 | McPhail | Sep 1992 | A |
5174410 | Casebolt | Dec 1992 | A |
5248021 | Nichols | Sep 1993 | A |
5261728 | Carmichael | Nov 1993 | A |
5279386 | Cearley | Jan 1994 | A |
5319896 | Winger | Jun 1994 | A |
5361558 | Thornton et al. | Nov 1994 | A |
5361726 | Harris et al. | Nov 1994 | A |
5425485 | Carlo | Jun 1995 | A |
5438734 | Anderson | Aug 1995 | A |
D367949 | Vallance | Mar 1996 | S |
5522184 | Oviedo-Reyes | Jun 1996 | A |
D375924 | Kramer | Nov 1996 | S |
5579794 | Sporta | Dec 1996 | A |
5623788 | Bimberg et al. | Apr 1997 | A |
5664639 | Worth | Sep 1997 | A |
D384486 | Herrli | Oct 1997 | S |
5678379 | Quattrociocchi | Oct 1997 | A |
5730407 | Ostrobrod | Mar 1998 | A |
5785146 | Palmer | Jul 1998 | A |
5819483 | Wells | Oct 1998 | A |
5896719 | Thornton | Apr 1999 | A |
5960480 | Neustater et al. | Oct 1999 | A |
5967095 | Greves | Oct 1999 | A |
5983760 | Clarke | Nov 1999 | A |
6038745 | Rapp | Mar 2000 | A |
6085500 | Keppick | Jul 2000 | A |
6138425 | Wendt | Oct 2000 | A |
D434544 | Goldman | Dec 2000 | S |
6176056 | MacKarvich | Jan 2001 | B1 |
6199246 | Cibin et al. | Mar 2001 | B1 |
6273113 | Streyckmans | Aug 2001 | B1 |
D449136 | Vallance | Oct 2001 | S |
6343449 | MacKarvich | Feb 2002 | B1 |
D454670 | Weller | Mar 2002 | S |
D457688 | Cordero | May 2002 | S |
6412540 | Hendee | Jul 2002 | B2 |
6418685 | Oliver et al. | Jul 2002 | B1 |
6581726 | Petzl et al. | Jun 2003 | B1 |
6606768 | Henry et al. | Aug 2003 | B2 |
6609340 | Moore et al. | Aug 2003 | B2 |
6637077 | Doty | Oct 2003 | B2 |
6648381 | Holton et al. | Nov 2003 | B2 |
6668509 | Krebs | Dec 2003 | B1 |
6786020 | Poldmaa | Sep 2004 | B2 |
6851393 | Bremm | Feb 2005 | B2 |
6945356 | Luke et al. | Sep 2005 | B2 |
D527166 | Hoeksema | Aug 2006 | S |
7103943 | Lambert | Sep 2006 | B2 |
D535058 | Boutin | Jan 2007 | S |
20020023595 | Kaufman | Feb 2002 | A1 |
20020079164 | Choate | Jun 2002 | A1 |
20030093884 | Doty | May 2003 | A1 |
20040069565 | Luke et al. | Apr 2004 | A1 |
20050139419 | Green | Jun 2005 | A1 |
20050166468 | Pierce | Aug 2005 | A1 |
20050230184 | Ansaldo | Oct 2005 | A1 |
20050257446 | Wolner et al. | Nov 2005 | A1 |
20060048998 | Wolner et al. | Mar 2006 | A1 |
20060070798 | DiCristina et al. | Apr 2006 | A1 |
20060236601 | Barber | Oct 2006 | A1 |
20060272890 | Harmon et al. | Dec 2006 | A1 |
20070012262 | Cole | Jan 2007 | A1 |
20070022672 | Bachynski | Feb 2007 | A1 |
Number | Date | Country |
---|---|---|
WO2006123979 | Nov 2006 | WO |
Number | Date | Country | |
---|---|---|---|
20060260260 A1 | Nov 2006 | US |