[미국특허]
Barricade system and barricade bracket for use therein
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E04G-003/00
E04G-007/00
E01D-021/00
출원번호
US-0257472
(2005-10-24)
등록번호
US-7509702
(2009-03-31)
발명자
/ 주소
Cantis,Douglas Mark
McKenzie, Jr.,Eugene Anthony
Bobick,Thomas Gordon
Edgell, III,Herbert David
출원인 / 주소
The United States of America as represented by the Secretary of the Department of Health and Human Services, c/o Centers for Disease Control and Prevention
대리인 / 주소
Klarquist Sparkman, LLP
인용정보
피인용 횟수 :
5인용 특허 :
14
초록▼
A protective barricade system to prevent persons from accidentally falling through holes in roofs or floors or from the edges of stairwells, balconies, or pitched roofs. The barricade system comprises a plurality of barricade brackets that are spaced apart and can be releasably attached to the under
A protective barricade system to prevent persons from accidentally falling through holes in roofs or floors or from the edges of stairwells, balconies, or pitched roofs. The barricade system comprises a plurality of barricade brackets that are spaced apart and can be releasably attached to the underlying surface.
대표청구항▼
What is claimed is: 1. A portable barricade bracket for working on a surface, comprising: a base member having a longitudinal axis, an anchor plate and a pair of opposing base side members extending from opposing edge portions of the anchor plate and defining a first pair of opposing first openings
What is claimed is: 1. A portable barricade bracket for working on a surface, comprising: a base member having a longitudinal axis, an anchor plate and a pair of opposing base side members extending from opposing edge portions of the anchor plate and defining a first pair of opposing first openings and a spaced at least one second pair of opposing second openings, a support member having a longitudinal axis, a back plate and a pair of opposing support side members extending from opposing edge portions of the back plate and defining a third pair of opposing third openings and a spaced at least one fourth pair of opposing fourth openings; a step member having a longitudinal axis, a top plate and a pair of opposing step side members extending from opposing edge portions of the top plate defining a fifth pair of opposing fifth openings and a spaced sixth pair of opposing sixth openings; a first shaft adapted to mount therein the first pair of the base member and the fifth pair of the step member such that the step member can be pivotally moved relative to the base member about an axis of the first pivot shaft; a second shaft adapted to mount therein one of the second pair of the base member and the third pair of the support member such that the support member can be positioned relative to the base member; a third shaft adapted to mount therein the one of the fourth pair of the support member and the sixth pair of the step member such that the step member can be positioned relative to the support member, wherein, the respective base, support and step members are fixed relative to each other when the respective first, second and third shafts are mounted therein, and wherein the step member is selectively and releasably positioned at a plurality of predetermined acute angles with respect to the base member; a pole and a mount, wherein the mount is connected to the back plate of the support member and extends substantially parallel to the longitudinal axis of the support member, and wherein the mount defines a bore that is sized and shaped for complementary receipt of the pole; a rail assembly comprising: a spine member having a longitudinal axis and at least one bracket side member extending therefrom an edge of the spine member, wherein the spine member defines a passage, and wherein the at least one bracket defining an opening that is shaped and sized for complementary receipt of a predetermined dimensioned piece of lumber; a sleeve that defines a conduit that is sized and shaped for slidable engagement with a portion of the pole, wherein the sleeve defines an opening in communication with the conduit; a threaded member that defines a threaded bore, the threaded member mounted therein the passage of the spine member, wherein the threaded member is connected to the sleeve such that the threaded bore is coaxial to the conduit of the sleeve and such that the sleeve is positioned substantially parallel to the longitudinal axis of the spine member; and a fastener having a distal end that is adapted to engage the threaded bore of the threaded member, whereby the distal end can selectively engage a portion of the pole to selectively secure the rail assembly to the pole. 2. The barricade bracket of claim 1, wherein each base side member defines a first opening and at least one second opening, and wherein the first opening is spaced from the at least one second opening. 3. The barricade bracket of claim 2, wherein the first opening is positioned on a top portion of the base side member, and wherein the at least one second opening is positioned on a bottom portion of the base side member. 4. The barricade bracket of claim 3, wherein the at least one second opening comprises a plurality of second openings. 5. The barricade bracket of claim 4, wherein the plurality of second openings extends linearly substantially parallel to the longitudinal axis of the base member. 6. The barricade bracket of claim 4, wherein each of the plurality of second openings is spaced from an adjacent second opening a predetermined distance. 7. The barricade bracket of claim 6, wherein the predetermined distance is substantially uniform. 8. The barricade bracket of claim 6, wherein the predetermined distance varies between at least two of the second openings of the plurality of second openings. 9. The barricade bracket of claim 6, wherein the predetermined distance is variable. 10. The barricade bracket of claim 1, wherein each support side member defines a third opening and at least one fourth opening, and wherein the third opening is spaced from the at least one fourth opening. 11. The barricade bracket of claim 10, wherein the third opening is positioned adjacent a lower portion of the support side member, and wherein the at least one fourth opening is positioned on an upper portion of the support side member. 12. The barricade bracket of claim 11, wherein the at least one fourth opening comprises a plurality of fourth openings. 13. The barricade bracket of claim 12, wherein the plurality of fourth openings extends linearly substantially parallel to the longitudinal axis of the support member. 14. The barricade bracket of claim 12, wherein each of the plurality of fourth openings is spaced from an adjacent fourth opening a predetermined distance. 15. The barricade bracket of claim 14, wherein the predetermined distance is substantially uniform. 16. The barricade bracket of claim 14, wherein the predetermined distance varies between at least two of the fourth openings of the plurality of fourth openings. 17. The barricade bracket of claim 14, wherein the predetermined distance is variable. 18. The barricade bracket of claim 1, wherein each step side member defines a fifth opening and a sixth opening, and wherein the fifth opening is spaced from the sixth opening. 19. The barricade bracket of claim 18, wherein the fifth opening is positioned adjacent a proximal end of the step side member, and wherein the sixth opening is positioned adjacent a distal end of the support side member. 20. The barricade bracket of claim 1, wherein the support member is positioned substantially normal to the base member. 21. The barricade bracket of claim 1, wherein at least a portion of the base member, the support member and the step member defines a U-shaped channel. 22. The barricade bracket of claim 1, wherein the anchor plate of the base member defines a plurality of anchor openings adapted to receive a fastener for releasable connection to the surface. 23. The barricade bracket of claim 1, wherein the top plate of the step member defines a plurality of mount openings adapted to receive a fastener. 24. The barricade bracket of claim 23, further comprising a shoulder member that defines at least one opening that is adapted to receive the fastener, whereby the shoulder member can be selectively connected to the top plate of the step member. 25. The barricade bracket of claim 24, wherein the shoulder member further comprises a stop that extends substantially transverse therefrom a distal end of the shoulder member. 26. The barricade bracket of claim 1, wherein the pole has a first end portion and a second end portion, wherein the first end portion is positioned at an obtuse angle with respect to the second end portion, and wherein the first and second end portions are adapted to be received therein the bore of the mount. 27. The barricade bracket of claim 1, wherein the at least one bracket side member comprises an opposed pair of bracket side members, each bracket side member extending from opposing edges of the spine member. 28. The barricade bracket of claims 1 or 24, further comprising at least one U-shaped trough member, one side of the trough member being connected to a portion of an upper edge of the support side member, each trough member adapted to seat a board therein such that the board is positioned in a plane substantially parallel to the back plate of the support member. 29. The barricade bracket of claim 1, wherein the first shaft is releasably mounted therein the first pair of the base member and the fifth pair of the step member. 30. The barricade bracket of claim 29, wherein the first shaft comprises a bolt. 31. The barricade bracket of claim 1, wherein the second shaft is releasably mounted therein one of the second pair of the base member and the third pair of the support member. 32. The barricade bracket of claims 1 or 31, wherein the third shaft is releasably mounted therein the one of the fourth pair of the support member and the sixth pair of the step member. 33. The barricade bracket of claim 1, wherein each of second and third shafts comprises a pin and a clip that is adapted to releasably mount to a distal end of the pin. 34. A barricade for working on a work surface comprising: a base for attaching to the work surface; a support member coupled to the base and extending substantially perpendicular to the base; a step member coupled at one end to the base and at an opposite end to the support member, the step member for supporting a walking surface adjacent to the work surface; at least one pole for coupling to the support member for attaching a railing; a sleeve coupled to the pole that can slide on the pole for selecting a height of the railing; and a fastener for securing the sleeve to the pole. 35. The barricade of claim 34, wherein the pole has at least one curved end for allowing the railing to extend at an angle from the walking surface. 36. The barricade of claim 34, wherein the pole is removable from the support member. 37. The barricade of claim 34, wherein the support member includes a pole mount along a longitudinal axis of the support member, the pole mount having a bore therein for removably securing the pole. 38. The barricade of claim 34, wherein the pole has a curved end and a straight end for adjusting an angle from which the pole extends relative to the support member. 39. The barricade of claim 34, wherein the support member further includes a U-shaped member for securing a toe board that is separate from the walking surface. 40. A method of erecting a barricade for working on a work surface comprising: attaching a first and second base to the work surface; attaching a first support member to the first base so that the first support member extends perpendicular to the first base and a second support member to the second base so that the second support member extends perpendicular to the second base; attaching one end of a first step member to the first base and another end of the first step member to the first support member; attaching one end of a second step member to the second base and another end of the second step member to the second support member; attaching a walking surface on the first and second step members so that the walking surface is adjacent to the work surface; attaching a first pole to the first support member; attaching a second pole to the second support member sliding a first sleeve on the first pole until it is set at a desired height for a railing; sliding a second sleeve on the second pole until it is set at the desired height for the railing; and securing the first and second sleeves to the first and second poles using first and second threaded members, respectively, so that the railing extends between the first and second sleeves. 41. The method of claim 40, wherein each pole has at least one curved end for allowing the railing to extend at an angle from the walking surface. 42. The barricade of claim 40, wherein each pole is removable from its respective support member. 43. The barricade of claim 40, wherein each of the first and second support members include pole mounts along a longitudinal axis of the support members, each of the pole mounts having a bore therein for removably securing the pole. 44. The barricade of claim 40, wherein each pole has a curved end and a straight end for adjusting an angle from which the railing extends relative to the support member. 45. The barricade of claim 40, wherein each support member further includes a U-shaped member for securing a toe board that is separate from the walking surface.
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