초록 ▼

The invention relates to the general field of construction, and more specifically, the protection of construction work sites. At least two vertical poles are positioned between two surfaces such as ceilings and floors. A center frame with one or more rotatable segments may be mounted between the ver

The invention relates to the general field of construction, and more specifically, the protection of construction work sites. At least two vertical poles are positioned between two surfaces such as ceilings and floors. A center frame with one or more rotatable segments may be mounted between the vertical poles and secured to a window sill. Construction materials may be passed over the rotatable segment and through the center frame with minimal or no damage to the window sill or surrounding structure. The vertical poles may be used with a sheet material to form a protective tunnel. Construction materials may be passed through the tunnel with minimal or no damage to the surrounding environment. Debris left by the construction materials is captured within the tunnel and can be safely and conveniently removed.

대표청구항 ▼

1. An apparatus for protecting a window or door frame while allowing objects to pass through the window or door frame comprising: first and second vertical supports each extending longitudinally from a first end to a second end, wherein the first and second vertical supports are secured between top

1. An apparatus for protecting a window or door frame while allowing objects to pass through the window or door frame comprising: first and second vertical supports each extending longitudinally from a first end to a second end, wherein the first and second vertical supports are secured between top and bottom horizontal surfaces of a building; anda center frame supported by the first and second vertical supports between the first end and the second end of the first and second vertical supports, the center frame comprising first and second horizontal beams, first and second vertical beams, first and second diagonal beams, first and second lateral beams, and a horizontal cross beam, each beam longitudinally extends from a first end to a second end;wherein the first and second horizontal beams are slidably attached to the first and second vertical supports between the first and second ends of the first and second vertical supports, such that the first and second horizontal beams can be vertically adjusted along the first and second vertical supports;wherein the first ends of the first and second vertical beams are connected to the first horizontal beam and wherein the second ends of the first and second vertical beams are connected to the second horizontal beam;wherein the first and second lateral beams extend perpendicularly from the second horizontal beam, wherein each of the first ends of the first and second lateral beams is connected to the second horizontal beam and to one of the second ends of the first and second vertical beams;wherein each of the first ends of the first and second diagonal beams is connected to the first horizontal beam and to one of the first ends of the first and second vertical beams, and wherein each of the second ends of the first and second diagonal beams is connected to one of the second ends of the first and second lateral beams;wherein the first end of the horizontal cross beam is connected to the second ends of the first diagonal and lateral beams, and wherein the second end of the horizontal cross beam is connected to the second ends of the second diagonal and lateral beams;wherein the first and second horizontal beams and the first and second vertical beams define a first opening, and wherein the first horizontal beam, the horizontal cross beam, and the first and second diagonal beams define a second opening;wherein the first vertical, diagonal, and lateral beams form a first triangle, and wherein the second vertical, diagonal, and lateral beams form a second triangle;wherein the center frame is placed within the window or door frame and wherein the first and second openings are provided for allowing objects to pass through the first and second openings and the window or door frame. 2. The apparatus of claim 1, wherein the first and second vertical supports comprise two or more telescoping segments for allowing the first and second vertical supports to be adjusted in length. 3. The apparatus of claim 1, further comprising adjustable feet coupled to the first and second vertical supports. 4. The apparatus of claim 3, wherein at least one of the feet comprises a locking mechanism. 5. The apparatus of claim 1, wherein each of the first and second vertical supports comprises a jack for securing the first and second vertical supports between the top and bottom horizontal surfaces of the building, wherein the jack is configured to expand for increasing the pressure between the first and second vertical supports and the top and bottom horizontal surfaces of the building. 6. The apparatus of claim 1, wherein the center frame comprises at least one clamp mounted below at least one of the first and second lateral beams for securing the center frame to a still of the window or door frame. 7. The apparatus of claim 6, wherein the at least one clamp comprises a clamp rail having at least one row of teeth disposed along a side of the clamp rail for adjusting the at least one clamp along the clamp rail. 8. The apparatus of claim 7, wherein the at least one clamp comprises at least one clamp button for locking the at least one clamp in place along the clamp rail. 9. The apparatus of claim 1, wherein the center frame comprises a plurality of beams coupled via one or more of: fittings, T-joints, T-L joints, L-U joints, and T-V joints. 10. The apparatus of claim 2, wherein the two or more telescoping segments comprise a locking mechanism for preventing the two or more telescoping segments from being expanded or contracted. 11. The apparatus of claim 10, wherein the locking mechanism comprises a hole and a pin. 12. The apparatus of claim 3, wherein the feet comprise material selected from the group consisting of soft material, gripper material, and a combination thereof. 13. The apparatus of claim 1, wherein at least one of the horizontal cross beam and the second horizontal beam comprises a rotatable casing for supporting and rolling objects passed over the at least one of the horizontal cross beam and the second horizontal beam. 14. The apparatus of claim 1, wherein the center frame comprises a plurality of expandable and contractible beams for allowing the plurality of beams to be adjusted in at least one of width and height. 15. An apparatus for protecting a window or door frame while allowing objects to pass through the window or door frame comprising: first and second vertical supports each extending longitudinally from a first end to a second end, wherein the first and second vertical supports are secured between top and bottom horizontal surfaces of a building; anda center frame supported by the first and second vertical supports between the first end and the second end of the first and second vertical supports, the center frame comprising: first and second horizontal beams slidably attached to the first and second vertical supports between the first and second ends of each of the first and second vertical supports, such that the first and second horizontal beams can be vertically adjusted along the first and second vertical supports;first and second vertical beams each comprising a first end, connected to the first horizontal beam, and a second end, connected to the second horizontal beam;first and second diagonal beams each comprising first and second ends, wherein the first ends of the diagonal beams are connected to the first horizontal beam;first and second lateral beams extending perpendicularly from the center frame, wherein the first and second lateral beams each comprising a first end, connected to the second horizontal beam, and a second end, connected to one of the second ends of the first and second diagonal beams;a horizontal cross beam comprising a first end, connected to the second end of the first lateral beam, and a second end, connected to the second end of the second lateral beam;a first opening between the first and second horizontal beams and the first and second vertical beams;a second opening between the first horizontal beam, the horizontal cross beam, and the first and second diagonal beams;wherein the center frame is placed within the window or door frame and wherein the first and second openings are provided for allowing objects to pass through the first and second openings and the window or door frame; andwherein at least one of the horizontal cross beam and the second horizontal beam comprises a rotatable casing for supporting and rolling objects passed over the at least one of the horizontal cross beam and the second horizontal beam.