TOE BOARD FOR SCAFFOLDING AND A METHOD FOR PRODUCING A TOE BOARD
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IPC분류정보
국가/구분
United States(US) Patent
공개
국제특허분류(IPC7판)
E04G-007/28
B23P-011/00
출원번호
US-0448957
(2008-01-21)
공개번호
US-0078264
(2010-04-01)
우선권정보
EP-07001361.0(2007-01-23)
국제출원번호
PCT/DE2008/000097
(2008-01-21)
발명자
/ 주소
Kreller, Helmut
대리인 / 주소
COLLARD & ROE, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
0
초록▼
The invention relates to a toe board (130.1.1) for a scaffolding (10) for the lateral limitation of walking and/or working surfaces (16) of scaffolding coverings (15), having an elongated board unit (31) configured of a hollow profile (132) made of steel (29), which is closed at the face end facing
The invention relates to a toe board (130.1.1) for a scaffolding (10) for the lateral limitation of walking and/or working surfaces (16) of scaffolding coverings (15), having an elongated board unit (31) configured of a hollow profile (132) made of steel (29), which is closed at the face end facing away from each other in the longitudinal direction (33) by an end cap (137), and which has a mounting unit (136) made of flat steel (70) that protrudes in the longitudinal direction beyond the respective face end. The end cap (137) comprises a cover part (140) protruding beyond the face end of the hollow profile (132), covering the face edges thereof, and substantially comprising plastic. The cap further comprises a fastening body connected to the cover part (140), the body being inserted in the hollow profile (132) and firmly connected thereto and/or to the mounting unit (136) via a fastening means (42). The mounting unit (136) comprises a fastening part inserted in the hollow profile (132), wherein the part is firmly connected to the hollow profile (132) via a fastening means (43). The invention further relates to a method for the production of a toe board (130.1.1).
대표청구항▼
1. Toe board (30; 30.1; 30.1.1, 30.1.2; 30.2; 130; 130.1.1, 130.1.2) for a scaffolding, for lateral bounding of walk and/or work surfaces (16) of scaffolding platforms (15), comprising an elongate board unit (31), which is formed by or from a hollow profile (32, 132) of steel, particularly of galva
1. Toe board (30; 30.1; 30.1.1, 30.1.2; 30.2; 130; 130.1.1, 130.1.2) for a scaffolding, for lateral bounding of walk and/or work surfaces (16) of scaffolding platforms (15), comprising an elongate board unit (31), which is formed by or from a hollow profile (32, 132) of steel, particularly of galvanised steel plate (29), which with the help of respective closure means (35) is closed at each of its ends (34.1, 34.2) facing away from one another in longitudinal direction (32) and which for producing a connection with the scaffolding (10) and/or with an adjacent toe board (30; 130) has a mounting unit (36; 36.1, 36.2; 136.1, 136.2) protruding in longitudinal direction (33) beyond its respective end (34.1, 34.2) and consisting of metal, preferably of steel, particularly of sheet steel (70), wherein the hollow profile (32, 132) of the board unit (31) is closed at each end (34.1, 34.2) thereof by a respective end cap (37, 137) comprising a cover part (40; 140) which protrudes beyond the end (34.1, 34.2) of the hollow profile (32, 132) and covers the end edges (38.1, 38.2) thereof and which preferably consists substantially of plastics material, the cap having a fastening body (41, 141) which is connected in single-part or multi-part manner with the cover part (40; 140) and which is inserted into the hollow profile (32, 132) and firmly connected therewith and/or with the mounting unit (36; 36.1, 36.2; 136.1, 136.2) with the help of fastening means (42), and that the mounting unit (36; 36.1, 36.2; 136.1, 136.2) has a fastening part (39; 139) which is inserted into the hollow profile (32, 132) and which is firmly connected with the hollow profile (32, 132) with the help of fastening means (43). 2. Toe board according to claim 1, wherein the fastening part (39; 139) of the mounting unit (36) is inserted into a recess (44) of the end cap (37, 137), particularly a slot (45) of the end cap (37, 137), to penetrate the hollow profile (32, 132). 3. Toe board according to claim 2, wherein the wall parts, which bound the recess (44) or the slot (45), of the end cap (37, 137) enclose the fastening part (39; 139) of the mounting unit (36; 136) over the full circumference or substantially over the full circumference. 4. Toe board according to claim 1, wherein the fastening body (41, 141) consists, preferably substantially, of plastics material and is connected, preferably integrally, with the cover part (40; 140). 5. Toe board according to claim 1, wherein the cover part (40; 140), preferably also the fastening body (41, 141) is or are formed substantially from or by a thermoplastic plastics material. 6. Toe board according to claim 1, wherein the end cap (37, 137) and/or the fastening body (41, 141) consists of consist substantially of a plastics material filled with fillers and/or reinforced by reinforcing materials, preferably by reinforcing fibres, particularly by glass fibres. 7. Toe board according to claim 1, wherein the mounting unit (36; 136) and/or the end cap (37, 137) is or are connected with the hollow profile (32, 132) with formation of a mechanically positive connection (46.1, 46.2; 146.1, 146.2). 8. Toe board according to claim 1, wherein the mounting unit (36; 136) and the end cap (37, 137) are connected together with formation of a mechanically positive connection (46.1, 46.2; 146.1, 146.2). 9. Toe board according to claim 1, wherein the mounting unit (36; 136) and/or the end cap (37, 137) is or are connected free of welding and exclusively by way of mechanical fastening means with the hollow profile (32, 132) of the board unit (31). 10. Toe board according to claim 1, wherein the mounting unit (136) and/or the end cap (137) is or are fastened by means of rivets (105), preferably by means of tubular rivets (105), to the hollow profile (132) of the board unit (31). 11. Toe board according to claim 1, wherein the mounting unit (36) and/or the end cap (37) is or are fastened free of welding and free of separate mechanical fastening means, such as rivets or screws, to the hollow profile (32) of the board unit (31). 12. Toe board according to claim 7, wherein the mechanically positive connection (46.1, 46.2) is achieved by a pressing process producing a local deformation of a wall part (47.1, 47.2) of the hollow profile (32). 13. Toe board according to claim 7, wherein the mechanically positive connection (46.1, 46.2) is carried out by drawing in or pressing in a hole edge region (48) of a hole (49) provided in a wall part (47.1, 47.2) of the hollow profile (32), preferably with the help of a press die (51.1, 51. 2, 51.3, 51.4), into a recess (52.1, 52.2; 54.1, 54.2), preferably into a passage hole (52.1, 52.2, 54.1, 54.2), of the fastening part (39) of the mounting unit (36) and/or of the fastening body (41) of the end cap (37). 14. Toe board according to claim 1, wherein the fastening part (39) of the mounting unit (36) and/or the fastening body (41) of the end cap (37) has or have at least one recess (52.1, 52.2; 54.1, 54.2), preferably a passage hole (52.1, 52.2; 54.1, 54.2), which extends transversely to a wall part (47.1, 47.2) of the hollow profile (32) and is open towards this wall part (47.1, 47.2) and the recess edge or hole edge (53; 55) of which is engaged behind by a hole edge (48′), which is integrally connected with the wall part (47.1, 47.2) and projects inwardly, preferably drawn in, of a hole (49′) of the hollow profile (32). 15. Toe board according to claim 1, wherein the mounting unit (36) and the end cap (37, 137) are mechanically positively connected together prior to insertion of the fastening part (39, 139) and of the fastening body (41, 141) into the hollow profile (32, 132) of the board unit (31). 16. Toe board according to claim 1, wherein the fastening body (41, 141) of the end cap (37, 137) is formed with a resilient detent element (60) which in the mounted state is so detented in a recess, preferably in a passage opening (61), of the fastening part (39; 139) of the mounting unit (36; 136) with formation of a mechanically positive connection that the fastening part (39; 139) of the mounting unit (36; 136) mounted on the end cap (37, 137) is secured at least against withdrawal in a direction opposite to the direction (62) of insertion of the fastening body (41, 141) of the end cap (37, 137) into the hollow profile (32, 132). 17. Toe board according to claim 1, wherein the fastening part (39; 139) of the mounting unit (36; 136) during plugging thereof onto or into the end cap (37, 137) presses the resilient detent element (60) of the fastening body (41, 141) of the end cap (37, 137) inwardly against the spring forces of the detent element (60), wherein in the course of further plugging on or in of the fastening part (39; 139) of the mounting unit (36; 136) the detent element (60) of the fastening body (41, 141) of the end cap (37, 137) automatically detents in the recess (61) of the fastening part (39; 139) of the mounting unit 36; 136). 18. Toe board according to claim 1, wherein the end cap (37; 137) has an abutment (63) against which the fastening part (39; 139) of the mounting unit (36; 136) can abut during plugging onto or into the end cap (37, 137) so that the mounting unit (36; 136) in the mounted state is disposed in a position relative to the end cap (37, 137) predetermined by the position of the abutment (63). 19. Toe board according to claim 18, wherein the abutment (63) and the detent element (60) of the end cap (37, 137) are arranged at a spacing (64) relative to one another which is equal to or slightly larger than spacing (65) between the recess (61), which is associated with the detent element (60), of the fastening part (39; 139) of the mounting unit (36; 136) and an end edge (66), which is associated with the abutment (63), of the fastening part (39; 139) of the mounting unit (36; 136). 20. Toe board according to claim 16, wherein the recess (61) of the fastening part (39; 139) of the mounting unit (36; 136) is formed as a slot (61) extending in insertion direction (62) and that the detent element (60) has an outer contour (68) corresponding with the inner contour (67) of the slot (61). 21. Toe board according to claim 1, wherein the fastening part (39; 139) of the mounting unit (36; 136) is formed with at least two fastening limbs (71.1, 71.2) arranged at a spacing (72) from and preferably parallel to one another. 22. Toe board according to claim 21, wherein each fastening limb (71.1, 71.2) is formed with at least one recess (52.1, 52.2) serving for fastening thereof to the hollow profile (32, 132) and with at least one recess (61) serving for fixing thereof relative to the end cap (37, 137). 23. Toe board according to claim 1, wherein the fastening body (41, 141) of the end cap (37, 137) is formed with at least two insertion bodies (73.1, 73.2), which are arranged at a spacing (74) from, preferably also parallel to, one another. 24. Toe board according to claim 23, wherein the number of insertion bodies (73.1, 73.2) corresponds with the number of fastening limbs (71.1, 71.2). 25. Toe board according to claim 1, wherein the end cap (37, 137) is formed to be chamfered at an angle (76) of preferably approximately 45 degrees at the end thereof facing away from the hollow profile (32, 132) in longitudinal direction. 26. Toe board according to claim 1, wherein the part, which covers the end edges (38.1, 38.2) of the hollow profile (32, 132), of the covering part (40) forms an abutment (77) which can be brought into contact with the end edges (38.1, 38.2) of the hollow profile (32, 132) or bears thereagainst. 27. Toe board according to claim 1, wherein the end edges (38.1, 38.2) of the hollow profile (32, 132) span a plane arranged perpendicularly to the length direction (33) or perpendicularly to the longitudinal axis (56) of the hollow profile (32, 132). 28. Toe board according to claim 1, wherein the hollow profile (32, 132) is formed with at least one, preferably with at least two, longitudinal beams (80.1, 80.2) of closed cross-section. 29. Toe board according to claim 28, wherein the at least one longitudinal beam (80.1, 80.2) is constructed as an edge beam (81.1, 81.2). 30. Toe board according to claim 28, wherein two longitudinal beams (80.1, 80.2) constructed as edge beams (81.1, 81.2) are provided. 31. Toe board according to claim 28, wherein the longitudinal beam (80.1, 80.2) has, in a section perpendicular to the longitudinal axis thereof, a box-shaped and/or closed, particularly a trapezium-shaped, cross-section (82.1, 82.2). 32. Toe board according to any claim 1, wherein the hollow profile (32, 132) is formed by bending over and/or flanging a blank of steel plate (29), particularly in a profiling roll train. 33. Toe board according to claim 1, wherein the two longitudinal ends (83.1, 83.2) of the hollow profile (32, 132) produced from steel plate (29) are connected together, in overlapping manner or as a butt joint (93), free of separate mechanical fastening means, such as rivets or screws, and also free of welding methods requiring a separate joining material. 34. Toe board according to claim 1, wherein the two longitudinal ends (83.1, 83.2) of the hollow profile (32, 132) made of steel plate (29) are connected with one another or with an oppositely disposed wall part (47.1) of the hollow profile (32, 132) with the help of a press-joining method, for example by means of through-joining, clinching and/or roller cutting and stamping. 35. Toe board according to claim 1, wherein the two longitudinal ends (83.1, 83.2) of the hollow profile (32, 132) made of steel plate (29) are connected with one another or with an oppositely disposed wall part (47.1) of the hollow profile (32, 132) preferably over the entire length of the hollow profile (32, 132), by means of laser welding. 36. Toe board according to claim 1, wherein the mounting unit (36; 136) has in the region projecting out beyond the end (34.1, 34.2) of the hollow profile (32, 132) a slot (84), which extends substantially perpendicularly to the longitudinal axis (56) thereof and is open towards one of the narrow longitudinal end faces (87.2)—which extends in longitudinal direction (33)—of the board unit (31) and the slot base (85) of which is preferably arranged at approximately half the height of the board unit (31). 37. Toe board according to claim 1, wherein the board unit (31) is provided on its wide longitudinal sides (86.1, 86.2), which face away from one another, with longitudinal ribs (88.1, 88.2; 88.3, 88.4), which extend over or substantially over the entire length thereof and are preferably formed as corrugations and which enable stacking of several of the toe boards (30-30, 130-130) one on the other with formation of a mechanically positive connection of the toe boards (30-30, 130-130) stacked one on the other, which connection hinders or prevents displacement of the toe boards (30-30, 130-130) perpendicularly to the length direction (33) thereof. 38. Toe board according to claim 37, wherein at least one first longitudinal rib (88.1, 88.2) of the longitudinal ribs (88.1, 88.2; 88.3, 88.4) extends upwardly of the outer boundary surface (89.1) of a first wide longitudinal side (86.1) of the wide longitudinal sides (86.1, 86.2) of the board unit (31) and that at least one second longitudinal rib (88.3, 88.4) of the longitudinal ribs (88.1, 88.2; 88.3, 88.4) extends downwardly of the outer boundary surface (89.2) of the second wide longitudinal side (86.2), which faces away from the first wide longitudinal side (86.1), of the board unit (31). 39. Toe board according to claim 37, wherein the longitudinal ribs (88.1, 88.2; 88.3, 88.4) are arranged in the region of at least one longitudinal beam (80.1, 80.2), preferably each in the region of an edge beam (81.1, 81.2). 40. Toe board according to claim 37, wherein the longitudinal ribs (88.1, 88.2; 88.3, 88.4) have from the narrow longitudinal side end face (87.1, 87.2), which is associated therewith, of the board unit (31) a spacing (90.1, 90.2) which enables gripping of the board unit (31) by hand from one of its narrow longitudinal end faces (87.1, 87.2) in such a manner that at least one of the longitudinal ribs (88.1, 88.2) on a first wide longitudinal side (86.1) of the wide longitudinal sides (86.1, 86.2) of the board unit (31) can be gripped behind by at least one first finger of the hand or that at least one first finger of the hand can engage in at least one of the longitudinal ribs (88.3, 88.4) on a first wide longitudinal side (86.2) of the wide longitudinal sides (86.1, 8.2) of the board unit, whilst at the same time another finger, preferably the thumb, of the same hand can grip the second wide longitudinal side (86.2 or 86.1), which faces away from the first wide longitudinal side (86.1 or 86.2), of the board unit (31). 41. Toe board according to claim 40, wherein the spacing (90.1, 90.2) is between 15 and 35 millimetres, preferably between 20 and 30 millimetres, particularly approximately 24 millimetres. 42. Toe board according to claim 1, wherein the mounting unit (36; 136) formed from sheet steel (70) is cranked in its region, which protrudes beyond the end (34.1, 34.2) of the hollow profile (32, 132), transversely to the longitudinal direction (33), preferably at an angle, particularly of approximately 45 degrees or approximately 90 degrees. 43. Toe board according to claim 1, wherein the mounting unit (36; 136) consists of a cranked steel plate (70) bent at least twice. 44. Scaffolding (10), which comprises scaffolding coverings (15), which have walk and/or work surfaces (16), and vertical posts (11) with first connecting units (17) for connection of longitudinal rails (12), transverse rails (13) and/or diagonals with the help of second connecting units (22) as well as at least one toe board (30; 130) according to claim 1. 45. Scaffolding (10) according to claim 44, wherein the first connecting unit (17) is constructed as a rosette (18), particularly as an apertured disc (19), which surrounds a vertical post (11) and has recesses (20), and that the second connecting unit (22) is formed as a connecting head (23), which can be plugged onto the rosette (18) and which has at least one wedge opening (24) for insertion of a connecting wedge (25) serving for tightening to the rosette (18). 46. Scaffolding according to claim 44, wherein the connecting head (23), which has vertical outer boundary surfaces (26.1, 26.2) running together in wedge-like manner, has an upper head part (27.1) and a lower head part (27.2), between which a forwardly open slot (28) for plugging of the connecting head (23) onto the rosette (18) is provided. 47. Method for producing a toe board (30), which has, in particular, the features of claim 1, for a scaffolding (10), for lateral bounding of walk and/or work surfaces (16) of scaffolding platforms (15), comprising an elongate board unit (31), which is formed by or from a hollow profile (32) of steel, particularly of galvanised steel (29), which with the help of respective closure means (35) is closed at each of its ends (34.1, 34.2) facing away from one another in longitudinal direction (33) and which for producing a connection with the scaffolding (10) and/or with an adjacent toe board (30) is provided with a mounting unit (36; 36.1, 36.2) protruding in longitudinal direction (33) beyond its respective end (34.1, 34.2) and consisting of metal, preferably of steel, particularly of sheet steel (70), wherein the hollow profile (32) of the board unit (31) is closed at each end (34.1, 34.2) thereof by a respective end cap (37) comprising a cover part (40) which protrudes beyond the end (34.1, 34.2) of the hollow profile (32) and covers the end edges (38.1, 38.2) thereof and which consists preferably substantially or preferably entirely of plastics material, the cap having fastening body (41) which is connected in single-part or multi-part manner with the cover part (40) and which is inserted into the hollow profile (32) and firmly connected therewith and/or with the mounting unit (36) with the help of fastening means (42), and that the mounting unit (36) has a fastening part (39) which is inserted into the hollow profile (32) to penetrate, for preference, a recess (44), particularly a slot, of the cover part (40) and which is firmly connected with the hollow profile (32) of the board unit (31) with the help of fastening means (43), wherein the mounting unit (36) and/or the end cap (37) is or are connected with the hollow profile (32) by a pressing process, which produces a local deformation of a wall part (47.1, 47.2) of the hollow profile (32), with formation of a mechanically positive connection (46.1, 46.2). 48. Method according to claim 47, wherein the mechanically positive connection (46.1, 46.2) is produced by drawing in or pressing in a hole edge (48) of a hole (49), which is provided in a wall part (47.1, 47.2) of the hollow profile (32), with the help of a press die (51.1, 51.2, 51.3, 51.4) into a recess (52.1, 52.2; 54.1, 54.2), preferably into a passage hole (52.1, 52.2; 54.1, 54.2), of the fastening part (39) of the mounting unit (36) and/or of the fastening body (41) of the end cap (37). 49. Method according to claim 47, wherein the mechanically positive connection (46.1) of the mounting unit (36) with the hollow profile (32) and the mechanically positive connection (46.2) of the end cap (37) with the hollow profile (32) are produced under the action, preferably simultaneously, of several press dies (51.1, 51.2, 51.3, 51.4) engaging the hollow profile (32) on longitudinal sides (86.1, 86.2) thereof, which face away from one another, in opposite directions (95, 96). 50. Method for producing a toe board (30; 130), which has, in particular, the features of claim 1, for a scaffolding (10), for lateral bounding of walk and/or work surfaces (16) of scaffolding platforms (15), particularly according to any one of claims 47 to 49, comprising an elongate board unit (31), which is formed by or from a hollow profile (32, 132) of steel, particularly of galvanised steel (29), which with the help of a respective closure means (35) is closed at each of its ends (34.1, 34.2) facing away from one another in longitudinal direction (33) and which for producing a connection with the scaffolding (10) and/or with an adjacent toe board (30; 130) is provided with a mounting unit (36; 36.1, 36.2; 136; 136.1, 136.2) protruding in longitudinal direction (33) beyond its respective end (34.1, 34.2) and consisting of metal, preferably of steel, particularly of sheet steel (70), wherein the hollow profile (32, 132) of the board unit (31) is closed at each end (34.1, 34.2) thereof by a respective end cap (37, 137) comprising a cover part (40; 140) which protrudes beyond the end (34.1, 34.2) of the hollow profile (32, 132) and covers the end edges (38.1, 38.2) thereof and which consists preferably substantially or preferably entirely of plastics material, the cap having a fastening body (41, 141) which is connected in single-part or multi-part manner with the cover part (40; 140) and which is inserted into the hollow profile (32, 132) and firmly connected therewith and/or with the mounting unit (36; 136) with the help of fastening means (42), and that the mounting unit (36; 136) has a fastening part (39; 139) which is inserted into the hollow profile (32) to penetrate, for preference, a recess (44), particularly a slot, of the cover part (40; 140) and which is firmly connected with the hollow profile (32; 132) of the board unit (31) with the help of fastening means (43), wherein the mounting unit (36; 136) and/or the end cap (37, 137) is or are fastened to the hollow profile (32, 132) of the board unit (31) exclusively by way of mechanical fastening means and free of welding. 51. Method for producing a toe board (130), which has, in particular, the features of claim 1, for a scaffolding (10), for lateral bounding of walk and/or work surfaces (16) of scaffolding platforms (15), particularly according to any one of claims 47 to 50, comprising an elongate board unit (31), which is formed by or from a hollow profile (132) of steel, particularly of galvanised steel (29), which with the help of respective closure means (35) is closed at each of its ends (34.1, 34.2) facing away from one another in longitudinal direction (33) and which for producing a connection with the scaffolding (10) and/or with an adjacent toe board (130) is provided with a mounting unit (136; 136.1, 136.2) protruding in longitudinal direction (33) beyond its respective end (34.1, 34.2) and consisting of metal, preferably of steel, particularly of sheet steel (70), wherein the hollow profile (132) of the board unit (31) is closed at each end (34.1, 34.2) thereof by a respective end cap (137) comprising a cover part (140) which protrudes beyond the end (34.1, 34.2) of the hollow profile (132) and covers the end edges (38.1, 38.2) thereof and which consists preferably substantially or preferably entirely of plastics material, the cap having a fastening body (141) which is connected in single-part or multi-part manner with the cover part (140) and which is inserted into the hollow profile (132) and firmly connected therewith and/or with the mounting unit (136) with the help of fastening means (42), and that the mounting unit (136) has a fastening part (139) which is inserted into the hollow profile (132) to penetrate, for preference, a recess (44), particularly a slot, of the cover part (140) and which is firmly connected with the hollow profile (132) of the board unit (31) with the help of fastening means (43), wherein the mounting unit (136) and/or the end cap (137) is or are fastened to the hollow profile (132) of the board unit (31) by means of rivets (105), preferably by means of tubular rivets (105). 52. Method for producing a toe board (30, 130), particularly according toclaim 1, by further comprising the following steps: initially the mounting unit (36; 136) and the end cap (37, 137) are firmly connected together, wherein the fastening body (41, 141) of the end cap (37, 137) and the fastening part (39; 139) of the mounting unit (36, 136) form an insertion unit (97; 197); subsequently the insertion unit (97; 197) is inserted into the hollow profile (32, 132); and subsequently thereto the fastening part (39; 139) of the mounting unit (36; 136), preferably also the fastening body (41, 141) of the end cap (37, 137), is or are firmly connected with the hollow body (32, 132).
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