Toe board for scaffolding and a method for producing a toe board
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E04G-005/14
E04G-007/28
출원번호
US-0448957
(2008-01-21)
등록번호
US-8973707
(2015-03-10)
우선권정보
EP-07001361 (2007-01-23)
국제출원번호
PCT/DE2008/000097
(2008-01-21)
§371/§102 date
20090716
(20090716)
국제공개번호
WO2008/089731
(2008-07-31)
발명자
/ 주소
Kreller, Helmut
출원인 / 주소
Wilhelm Layher Verwaltungs-GmbH
대리인 / 주소
Collard & Roe, P.C.
인용정보
피인용 횟수 :
1인용 특허 :
9
초록▼
A toe board of a scaffold system and a method of producing the toe board, the toe board configured to be attached to a working or walking surface of the scaffold in order to limit lateral movement upon the surface, the toe board made from a steel board unit having a hollow profile enclosed by covers
A toe board of a scaffold system and a method of producing the toe board, the toe board configured to be attached to a working or walking surface of the scaffold in order to limit lateral movement upon the surface, the toe board made from a steel board unit having a hollow profile enclosed by covers and mounting units inserted at each end with multiple types of fastenings.
대표청구항▼
1. A toe board for a scaffolding, the toe board comprising:an elongate board unit comprising a hollow profile of steel, the hollow profile having first and second ends facing away from one another in a longitudinal direction of the elongate board unit, the hollow profile being closed at the first an
1. A toe board for a scaffolding, the toe board comprising:an elongate board unit comprising a hollow profile of steel, the hollow profile having first and second ends facing away from one another in a longitudinal direction of the elongate board unit, the hollow profile being closed at the first and the second ends, the first and the second ends having respective end edges;a first end cap closing the first end of the hollow profile and comprising a first cover part, the first cover part protruding beyond the first end of the hollow profile and covering the end edges of the first end of the hollow profile;a second end cap closing the second end of the hollow profile and comprising a second cover part, the second cover part protruding beyond the second end of the hollow profile and covering the end edges of the second end of the hollow profile;a first fastening body connected with the first cover part and inserted into the hollow profile;a second fastening body connected with the second cover part and inserted into the hollow profile;a first mounting unit protruding in the longitudinal direction beyond the first end of the hollow profile, said first mounting unit being composed of metal, having a first fastening part inserted into the hollow profile, and being able to connect with at least one of the scaffolding and an adjacent toe board;a second mounting unit protruding in the longitudinal direction beyond the second end of the hollow profile, said second mounting unit being composed of metal, having a second fastening part inserted into the hollow profile, and being able to connect with at least one of the scaffolding and an adjacent toe board;a first fastening device connecting the first fastening body with at least one of the hollow profile and the first mounting unit;a second fastening device connecting the second fastening body with at least one of the hollow profile and the second mounting unit;the first fastening device or a third fastening device connecting the hollow profile with the first fastening part; andthe second fastening device or a fourth fastening device connecting the hollow profile with the second fastening part;wherein the first fastening body of the first end cap is formed with a resilient detent element;wherein the first mounting unit is mounted on the first end cap in a mounted state; andwherein, in the mounted state, the resilient detent element is in a recess of the first fastening part of the first mounting unit to form a shape-fit connection such that the first fastening part of the first mounting unit is secured at least against withdrawal in a direction opposite to a direction of insertion of the first fastening body of the first end cap into the hollow profile. 2. The toe board according to claim 1, wherein the first end cap has a slot; and wherein the first fastening part of the mounting unit is inserted into the slot of the first end cap to penetrate the hollow profile. 3. The toe board according to claim 2, wherein the first end cap has wall parts bounding the slot; and wherein the first fastening part is inserted into the slot such that the wall parts of the first end cap enclose the first fastening part over a full circumference of the first fastening part or substantially over the full circumference of the first fastening part. 4. The toe board according to claim 1, wherein the first fastening body is composed of plastics material and is connected integrally with the first cover part. 5. The toe board according to claim 1, wherein the first cover part is formed substantially from or by a thermoplastic plastics material. 6. The toe board according to claim 1, wherein at least one of the first end cap and the first fastening body is composed substantially of a plastics material, the plastics material being: filled with fillers,reinforced by reinforcing materials, orboth filled with fillers and reinforced by reinforcing materials. 7. The toe board according to claim 1, wherein at least one of the first mounting unit and the first end cap is connected with the hollow profile with a formation of a second shape-fit connection. 8. The toe board according to claim 1, wherein the first mounting unit and the first end cap are connected together with a formation of a second shape-fit connection. 9. The toe board according to claim 1, wherein at least one of the first mounting unit and the first end cap is connected, free of welding, with the hollow profile of the elongate board unit. 10. The toe board according to claim 1, wherein at least one of the first mounting unit and the first end cap is fastened via rivets to the hollow profile of the elongate board unit. 11. The toe board according to claim 7, wherein the formation of the second shape-fit connection is formed by a pressing process producing a local deformation of a wall part of the hollow profile. 12. The toe board according to claim 7, wherein the hollow profile comprises a hole edge region of a hole provided in a wall part of the hollow profile, wherein the formation of the second shape-fit connection is formed by drawing in or pressing in the hole edge region so that the hole edge region is positioned into a second recess of at least one of the fastening part of the first mounting unit and the fastening body of the first end cap. 13. The toe board according to claim 1, wherein the first fastening part of the first mounting unit is configured to be plugged onto or into the first end cap so that the plugging of the first fastening part onto or into the first end cap presses the resilient detent element of the first fastening body inwardly against spring forces of the resilient detent element; and wherein, during further plugging on or in of the first fasting part, the resilient detent element automatically detents in the recess of the first fastening part of the first mounting unit. 14. The toe board according to claim 1, wherein the first end cap has an abutment; and wherein the first fastening part of the first mounting unit can abut against the abutment during plugging of the first fastening part onto or into the first end cap so that the first mounting unit in a mounted state is disposed in a position relative to the first end cap predetermined by a position of the abutment. 15. The toe board according to claim 1, wherein the recess of the first fastening part is formed as a slot, the slot extending in the direction of insertion of the first mounting unit into the first end cap and having an inner contour; and wherein the resilient detent element has an outer contour corresponding with the inner contour of the slot. 16. The toe board according to claim 1, wherein the first fastening part is formed with at least two fastening limbs arranged at a spacing from one another. 17. The toe board according to claim 16, wherein each fastening limb of the at least two fastening limbs is formed with: at least one first recess serving for fastening of the respective fastening limb to the hollow profile, andat least one second recess serving for fixing of the respective fastening limb relative to the first end cap. 18. The toe board according to claim 1, wherein the first fastening body is formed with at least two insertion bodies arranged at a spacing from one another. 19. The toe board according to claim 18, wherein the first fastening part is formed with at least two fastening limbs; and wherein a number of the at least two insertion bodies corresponds with a number of the at least two fastening limbs. 20. The toe board according to claim 1, wherein the first end cap has an end facing away from the hollow profile in the longitudinal direction; and wherein the first end cap is formed to be chamfered at an angle at the end facing away from the hollow profile in the longitudinal direction. 21. The toe board according to claim 1, wherein the first cover part covers the end edges of the first end of the hollow profile in that a portion of the first cover part covers the end edges of the first end; wherein the portion of the first cover part forms an abutment; andwherein the abutment can be brought into contact with the end edges of the first end of the hollow profile or bears against the end edges of the first end of the hollow profile. 22. The toe board according to claim 1, wherein the end edges of the first end of the hollow profile span a plane arranged perpendicularly to a length direction of the toe board or perpendicularly to a longitudinal axis of the hollow profile. 23. The toe board according to claim 1, wherein the hollow profile is formed with at least one longitudinal beam. 24. The toe board according to claim 23, wherein the at least one longitudinal beam is an edge beam. 25. The toe board according to claim 23, wherein the at least one longitudinal beam comprises first and second longitudinal beams comprising edge beams. 26. The toe board according to claim 1, wherein the hollow profile is composed of a folded blank of a steel plate. 27. The toe board according to claim 1, wherein, via a first region, the first mounting unit protrudes in the longitudinal direction beyond the first end of the hollow profile; wherein the elongate board unit has narrow longitudinal end faces extending in the longitudinal direction of the elongate board unit; andwherein the first region includes a slot extending substantially perpendicularly to a longitudinal axis of the hollow profile, and open towards one of the narrow longitudinal end faces of the elongate board unit. 28. The toe board according to claim 1, wherein the elongate board unit has first and second wide longitudinal sides facing away from one another and longitudinal ribs on the first and second wide longitudinal sides, the longitudinal ribs: extending over or substantially over an entire length of the elongate board unit, andenabling stacking of several toe boards one on the other to form a shape-fit connected stack, wherein displacement of each toe board in the stack perpendicularly to a length direction of the toe board is hindered or prevented. 29. The toe board according to claim 28, wherein at least one first longitudinal rib of the longitudinal ribs extends upwardly of an outer boundary surface of the first wide longitudinal side of the elongate board unit; and wherein at least one second longitudinal rib of the longitudinal ribs extends downwardly of an outer boundary surface of the second wide longitudinal side of the elongate board unit. 30. The toe board according to claim 28, wherein the hollow profile comprises at least one longitudinal beam; and wherein the longitudinal ribs are arranged in a region of the at least one longitudinal beam. 31. The toe board according to claim 28, wherein the elongate board unit has first and second narrow longitudinal side end faces; wherein the longitudinal ribs are associated with at least one of the first and second narrow longitudinal side end faces; andwherein the longitudinal ribs each have a spacing from the at least one of the first and second narrow longitudinal side end faces, the spacing enabling gripping of the elongate board unit, by a hand, from the at least one of the first and second narrow longitudinal end faces in such a manner that: at least one of the longitudinal ribs on the first wide longitudinal side of the elongate board unit can be gripped behind by at least one first finger of the hand, orat least one first finger of the hand can engage in at least one of the longitudinal ribs on the first wide longitudinal side of the elongate board unit,whilst simultaneously another finger of the hand can grip the second wide longitudinal side of the elongate board unit. 32. The toe board according to claim 31, wherein the spacing is between 15 and 35 millimeters. 33. The toe board according to claim 1, wherein the first mounting unit is formed from sheet steel; wherein, via a first region, the first mounting unit protrudes in the longitudinal direction beyond the first end of the hollow profile; andwherein the first mounting unit is bent in the first region transversely to the longitudinal direction. 34. The toe board according to claim 1, wherein the first mounting unit comprises a steel plate bent at least twice. 35. The toe board according to claim 1 in combination with the scaffolding, the scaffolding comprises surfaces configured to walk or work thereon, the scaffolding having vertical posts with first connecting units for connection to second connecting units of at least one of longitudinal rails, transverse rails and diagonals. 36. The toe board and scaffolding according to claim 35, wherein the first connecting units are constructed as a rosette surrounding a vertical post of said vertical posts and having recesses, and wherein the second connecting units comprise a connecting head configured to be plugged onto the rosette and have at least one wedge opening for insertion of a connecting wedge for tightening to the rosette. 37. The toe board and scaffolding according to claim 36, wherein the connecting head has vertical outer boundary surfaces, an upper head part and a lower head part, wherein a forwardly open slot for plugging of the connecting head onto the rosette is provided between the upper head part and the lower head part. 38. A method for producing the toe board according to claim 1, the method comprising the steps of: connecting the first fastening body with the first cover part;inserting the first fastening body into the hollow profile;connecting the second fastening body with the second cover part;inserting the second fastening body into the hollow profile;closing the first end of the hollow profile via the first end cap;closing the second end of the hollow profile via the second end cap;inserting the first fastening part of the first mounting unit into the hollow profile;inserting the second fastening part of the second mounting unit into the hollow profile;connecting the first fastening body with at least one of the hollow profile and the first mounting unit via the first fastening device;connecting the second fastening body with at least one of the hollow profile and the second mounting unit via the second fastening device;connecting the hollow profile with the first fastening part via the first or the third fastening device; andconnecting the hollow profile with the second fastening part via the second or the fourth fastening device;mounting the first mounting unit on the first end cap to produce the mounted state; andperforming a pressing process producing a local deformation of a wall part of the hollow profile to provide a second shape-fit connection between the hollow profile and at least one of the first mounting unit and the first end cap. 39. The method according to claim 38, wherein the second shape-fit connection is produced by drawing in or pressing in a hole edge of a hole provided in the wall part of the hollow profile via a press die pressed into a second recess of the fastening part of at least one of the first mounting unit and the fastening body of the first end cap. 40. The method according to claim 38, wherein the second shape-fit connection is produced by several press dies engaging the hollow profile on longitudinal sides of the hollow profile facing away from one another. 41. A method for producing the toe board according to claim 1, the method comprising the steps of: connecting the first fastening body with the first cover part;inserting the first fastening body into the hollow profile;connecting the second fastening body with the second cover part;inserting the second fastening body into the hollow profile;closing the first end of the hollow profile via the first end cap;closing the second end of the hollow profile via the second end cap;inserting the first fastening part of the first mounting unit into the hollow profile;inserting the second fastening part of the second mounting unit into the hollow profile;connecting the first fastening body with at least one of the hollow profile and the first mounting unit via the first fastening device;connecting the second fastening body with at least one of the hollow profile and the second mounting unit via the second fastening device;connecting the hollow profile with the first fastening part via the first or the third fastening device; andconnecting the hollow profile with the second fastening part via the second or the fourth fastening device;mounting the first mounting unit on the first end cap to produce the mounted state; andwherein at least one of the first mounting unit and the first end cap is fastened, free of welding, to the hollow profile of the board unit. 42. A method for producing the toe board according to claim 1, the method comprising the steps of: connecting the first fastening body with the first cover part;inserting the first fastening body into the hollow profile;connecting the second fastening body with the second cover part;inserting the second fastening body into the hollow profile;closing the first end of the hollow profile via the first end cap;closing the second end of the hollow profile via the second end cap;inserting the first fastening part of the first mounting unit into the hollow profile;inserting the second fastening part of the second mounting unit into the hollow profile;connecting the first fastening body with at least one of the hollow profile and the first mounting unit via the first fastening device;connecting the second fastening body with at least one of the hollow profile and the second mounting unit via the second fastening device;connecting the hollow profile with the first fastening part via the first or the third fastening device; andconnecting the hollow profile with the second fastening part via the second or the fourth fastening device;mounting the first mounting unit on the first end cap to produce the mounted state;wherein at least one of the first mounting unit and the first end cap is fastened to the hollow profile of the elongate board unit via rivets. 43. The method according to claim 38, further comprising the following steps: initially connecting the first mounting unit and the first end cap together, wherein the first fastening body of the first end cap and the first fastening part of the first mounting unit form an insertion unit;subsequently inserting the insertion unit into the hollow profile; andsubsequently connecting the first fastening part of the first mounting unit with the hollow profile. 44. The method according to claim 41, further comprising the following steps: initially connecting the first mounting unit and the first end cap together, wherein the first fastening body of the first end cap and the first fastening part of the first mounting unit form an insertion unit;subsequently inserting the insertion unit into the hollow profile; andsubsequently connecting the first fastening part of the first mounting unit with the hollow profile. 45. The method according to claim 42, further comprising the following steps: initially connecting the first mounting unit and the first end cap together, wherein the first fastening body of the first end cap and the first fastening part of the first mounting unit form an insertion unit;subsequently inserting the insertion unit into the hollow profile; andsubsequently connecting the first fastening part of the first mounting unit with the hollow profile.
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이 특허에 인용된 특허 (9)
Whitson Frederick A. (5433 Provence Pl. Riverside CA 92506), Collapsible scaffolding.
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