WO2023080778A1 - Ensemble de verrouillage pour une partie de plancher d'échafaudage, partie de plancher d'échafaudage comprenant l'ensemble de verrouillage et procédé - Google Patents

Ensemble de verrouillage pour une partie de plancher d'échafaudage, partie de plancher d'échafaudage comprenant l'ensemble de verrouillage et procédé Download PDF

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Publication number
WO2023080778A1
WO2023080778A1 PCT/NL2022/050606 NL2022050606W WO2023080778A1 WO 2023080778 A1 WO2023080778 A1 WO 2023080778A1 NL 2022050606 W NL2022050606 W NL 2022050606W WO 2023080778 A1 WO2023080778 A1 WO 2023080778A1
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WO
WIPO (PCT)
Prior art keywords
locking
operating
main body
floor
locking assembly
Prior art date
Application number
PCT/NL2022/050606
Other languages
English (en)
Inventor
Franciscus Jozef Leonardus Hubertus Brinkmann
Original Assignee
Scafom Holding B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scafom Holding B.V. filed Critical Scafom Holding B.V.
Publication of WO2023080778A1 publication Critical patent/WO2023080778A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/28—Clips or connections for securing boards
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/152—Platforms made of metal or with metal-supporting frame
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/154—Non-detachably fixed and secured connections between platform and scaffold
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/08—Scaffold boards or planks

Definitions

  • the invention relates to a locking assembly for locking a scaffolding floor part to a ledger which can support the scaffolding floor part, as well as to a scaffolding floor part comprising the locking assembly, and to a method for adjusting a mutual locking of a scaffolding floor part and a ledger which can support the scaffolding floor.
  • a locking assembly for locking a scaffolding floor part to a ledger which can support the scaffolding floor part, where the locking assembly is for instance part of the scaffolding floor part.
  • Such locking assemblies generally serve to promote the safety of scaffolding constructions, and more particularly to counteract so-called wafting of scaffolding floor parts, which is also denoted by the terms of waft protection and anti-lift.
  • the locking counteracts the scaffolding floor part coming loose from the ledger, for instance because of an upward force resulting from wind to which the scaffolding floor part is exposed.
  • the locking if so desired, can be removed through an active manual operation of the locking assembly.
  • a locking assembly for a scaffolding floor part can be operated both from below and from above, that is, both by a person who is under the scaffolding floor part and by a person who is on the locked or to-be-locked scaffolding floor part itself.
  • Examples of such a locking assembly operable both from above and from below are known from US 5,704,449A.
  • a disadvantage of those known locking assemblies is that they have rather complex mechanical constructions which as a result of intensive use and weather influences can be sensitive to wear and other problems. Thus, improvement is desired.
  • An object of the current invention is to provide an improved locking assembly for locking a scaffolding floor part to a ledger which can support the scaffolding floor part.
  • An object is to provide a locking assembly that can be operated relatively easily both from above and from below.
  • An object is to provide a locking assembly that is relatively robust and hence relatively durable.
  • An object is to provide at least an alternative locking assembly.
  • a locking assembly according to claim 1 is provided for locking a scaffolding floor part to a ledger which can support the scaffolding floor part.
  • the locking assembly comprises a main body which is configured to be part of the scaffolding floor part.
  • the main body defines a receiving space for the ledger, with a receiving opening, facing down during use, through which the ledger can move into or out of the receiving space.
  • the locking assembly comprises a locking element which under displacement thereof relative to the main body is adjustable between a locking position and a release position.
  • the locking position the locking element extends along, for instance in and/or beside, the receiving opening for counteracting movement of the ledger from the receiving space through the receiving opening.
  • the release position the locking element extends less or not along the receiving opening for releasing movement of the ledger from the receiving space through the receiving opening.
  • the locking assembly comprises an operating element which from a floor upper side of the main body, facing away from the receiving opening, is manually movable relative to the main body.
  • the operating element is coupled to the locking element via a mutual hinge connection which is movable along with the locking element relative to the main body for manual adjustment of the locking element between the locking position and the release position from the floor upper side mentioned.
  • the term floor upper side is associated with a surface of the scaffolding floor part which is intended to be normally used as scaffolding floor surface, and so, for instance, to be walked on or to be loaded otherwise, for instance by someone carrying out work from the respective scaffold.
  • the floor upper side hence forms a side substantially facing up.
  • the receiving opening hence faces substantially down.
  • a particularly robust mechanism can be formed with which a scaffolding floor part can be locked to a ledger.
  • the operating element coupled via the hinge connection advantageously enables the locking assembly to be operated particularly easily not only from below but also from above.
  • the locking element and the operating element for the purpose of adjustment between the locking position and the release position can both rotate and translate relative to the main body, at least, within respective ranges within the locking assembly that can be associated with one or more guiding structures such as one or more walls of and/or openings in the main body.
  • Wear-sensitivity can furthermore be reduced in that the locking assembly can be advantageously free of biasing means such as biasing springs.
  • biasing means such as biasing springs.
  • the possible use of such biasing means in a locking assembly according to the invention is not excluded.
  • the locking assembly is configured to have the locking element move automatically, for instance under the influence of gravity, from the locking position to the release position when the ledger is being moved into the receiving space via the receiving opening.
  • the locking assembly need not be a hindrance to the quick and easy suspension of the scaffolding floor part from the ledger.
  • the locking element can be adjusted to the locking position at any desired moment, for instance through manual operation from above or from below.
  • a user For adjustment to the locking position from above, a user, in some embodiments, might possibly use his foot instead of his hand, so that bending down can be avoided and the operating action can be carried out particularly quickly, for instance during walking on the scaffolding floor part.
  • the adjustment For adjustment to the release position from above, it may be desirable that the adjustment cannot be carried out or is harder to carry out by foot, so as to counteract the locking being accidentally undone when walking on the scaffolding floor part.
  • the locking assembly can be configured accordingly.
  • a further aspect provides a scaffolding floor part comprising at least one locking assembly as described herein.
  • the above-mentioned advantages can be achieved, so that the scaffolding floor part can be operated in a particularly easy manner both from above and from below and at the same time can be particularly well resistant to intensive use and the action of weather influences.
  • a further aspect provides a method for adjusting a mutual locking of a scaffolding floor part and a ledger which can support the scaffolding floor part.
  • the method comprises: providing a scaffolding floor part as herein described; providing a ledger in the receiving space of the locking assembly of the scaffolding floor part; and adjusting the locking element of the locking assembly between the release position and the locking position.
  • the ledger can for instance be received via the receiving opening into the receiving space, after which the locking element can be adjusted from above or from below to the locking position so as to lock the scaffolding floor part to the ledger.
  • the locking can be removed by adjusting the locking element through operation from above or from below to the release position.
  • Figs. 1A and IB show an isometric view and a side view, respectively, of an example of a locking assembly with a ledger, where the locking element is in a locking position;
  • Figs. 2A and 2B show an isometric view and a side view, respectively, of the locking assembly of Figs. 1A-B, where the locking element is in an intermediate position;
  • Figs. 3 A and 3B show an isometric view and a side view, respectively, of the locking assembly of Figs. 1A-2B, where the locking element is in a release position;
  • Figs. 4A and 4B show side views of the locking assembly of Figs. 1A-3B, where the ledger is in different positions relative to the locking assembly;
  • Figs. 5A, 5B and 5C show side views of an example of a scaffolding floor part with two locking assemblies in different situations relative to ledgers which can support the scaffolding floor part;
  • Figs. 6 A and 6B show an isometric view and a side view in cross section, respectively, of a further example of a locking assembly with a ledger, where the locking assembly is in a locking position;
  • Figs. 7 A, 7B and 7C show side views in cross section of the locking assembly of Figs. 6A-B, where the locking element is in different positions;
  • Figs. 8A, 8B and 8C show side views in cross section of a further example of a locking assembly with a ledger, where the locking element is in different positions.
  • the figures show examples of embodiments of a locking assembly 2 for locking a scaffolding floor part 4 to a ledger 50 which can support the scaffolding floor part 4.
  • Figs. 5B-C show in an example of an embodiment how a scaffolding floor part 4 can be supported in a manner known per se by, in this case, two ledgers 50, which are here each provided along longitudinal ends 38 of the floor part 4.
  • the locking assembly 2 comprises a main body 6 which is configured to form part of the scaffolding floor part 4 and which defines a receiving space 8 for the ledger 50, with a receiving opening 10 facing downwards during use, through which the ledger 50 can move into and out of the receiving space 8.
  • the main body 6 comprises a series of, for instance, two supporting brackets having an inverted U-shape defining the receiving space 8 with receiving opening 10.
  • a central or bridge section of the brackets can be supported on the received ledger 50, while leg sections of the brackets can counteract lateral displacement relative to the received ledger 50.
  • the main body 6 further comprises a connecting portion which in this case may be formed from a plate section and which fixedly interconnects the brackets on a lateral or leg side thereof and which is preferably configured to be connected with a floor profile 40 of the scaffolding floor part 4.
  • the brackets are, for instance by welding, fixedly and durably connected with the connecting part, so that together with the connecting part they form a relatively rigid main body 6.
  • main body may be formed in ways other than from brackets and a plate section.
  • the main body 6, for instance brackets and/or a connecting part thereof, is preferably manufactured from steel or aluminium, though other possible materials such as plastic materials and composite materials are not excluded.
  • the main body 6 for clarity and simplicity of the drawings, is represented as being relatively narrow, that is, having a proportionally small dimension along the length direction of the ledger 50. It will be clear, for instance from Fig. 6A, that the main body 6 can be proportionally wider, for instance corresponding to a width of the scaffolding floor part 4. In general, the width or length-to-width ratio of the main body 6 and/or the scaffolding floor part 4 can be chosen as desired, for instance corresponding to a standard width or a width of a scaffolding floor part to be adapted or to be replaced.
  • ledger 50 in Figs. 1A, 2A, 3A and 6A, in each case only a longitudinal section is shown, where it will be clear that the ledger 50 preferably continues at both ends of the section shown, in particular for connection with one or more other scaffolding parts such as one or more standards.
  • the locking assembly 2 comprises a locking element 12 which, under displacement thereof relative to the main body 6, is adjustable between a locking position and a release position. In the locking position, the locking element 12 extends along the receiving opening 10 for counteracting movement of the ledger 50 from the receiving space 8 through the receiving opening 10. In the release position, the locking element 12 extends less, or not, along the receiving opening 10 for releasing movement of the ledger 50 from the receiving space 8 through the receiving opening 10.
  • Figs. 1A-B, 5C, 6A-B and 8A show examples of such a locking position.
  • Figs. 3A-B, 5B, 7C and 8C show examples of such a release position.
  • the locking element 12 may optionally take up one or more possible intermediate positions, or, at least, pass through them.
  • Figs. 2A-B, 4A-B, 5A, 7A-B and 8B show examples of such intermediate positions. The positions are explained in more detail elsewhere in this description.
  • the locking element 12 is or comprises for instance a substantially elongate element and is preferably manufactured from steel or aluminium, although other materials such as plastic materials and composite materials are not excluded.
  • the locking assembly 2 further comprises an operating element 14 which, from a floor upper side 16 of the main body 6 that faces away from the receiving opening 10, is manually movable relative to the main body 6.
  • the operating element 14 is coupled to the locking element 12 via a mutual hinge connection 18 which is displaceable along with the locking element 12 relative to the main body 6 for manual adjustment of the locking element 12 between the locking position and the release position from the floor upper side 16 mentioned.
  • a locking assembly 2 can be provided that is particularly easily operable both from above (that is, from the floor upper side 16) and from below (for instance via a floor lower space 26).
  • the hinge connection 18 being displaceable relative to the main body 6 makes it possible for the locking assembly 2 to be particularly well resistant to intensive use and weather influences.
  • the displaceable hinge connection 18 may for instance be an only hinge connection of the locking assembly 2 and may be implemented in a robust manner, for instance with a nonbearing-mounted hinge pin 42 and possibly with some play to counteract jamming.
  • the locking assembly 2 may further also be free from any wearsensitive parts or connections such as vulnerable biasing springs, narrow sliding guides, etc., which are used in known locking assemblies.
  • the operating element 14 is or comprises for instance a substantially elongate element and is preferably manufactured from steel or aluminium, though other materials such as plastic materials and composite materials are not excluded.
  • Respective sizes and/or dimensions of the locking element 12 and the operating element 14 can be in the same order of magnitude.
  • the operating element 14 can have approximately the same length, thickness and/or width as the locking element 12.
  • a length of the locking element 12 and/or the operating element 14 may for instance be in the same order of magnitude as a width and/or height of the receiving space 8 and/or the ledger 50.
  • a width of the locking element 12 and/or the operating element 14 can for instance be in the range of 5% through 30% of the respective length.
  • a thickness of the locking element 12 and/or the operating element 14 may for instance be in the range of 0.5% through 30% of the respective length.
  • the locking element 12 and/or the operating element 14 may, between respective ends thereof, extend substantially straightly, for instance as in the example of Figs.lA-5C.
  • the locking element 12 and/or the operating element 14 can be substantially curved or angular, for instance as in the examples of Figs. 6A-8C.
  • the locking element 12 and/or the operating element 14 can have one or more shape details that contrast with a main shape or main direction of the respective element. See, as far as that is concerned, for instance, a slightly divergently directed end 30 of locking element 12 in Fig. IB and an end 22 of operating element 14 bent over substantially at right angles in Fig. 2A.
  • one or more openings and/or recesses may be provided, for instance for saving weight. See, as far as that is concerned, for instance, an elongate recess in the locking elements 12 in Figs. 3A and 6A and triangular recesses in the operating element 14 in Fig. 6A. Such and other optional elaborations of the locking element 12 and the operating element 14 are discussed in more detail elsewhere in this description.
  • the operating element 14 comprises an operating main section 20 and an adjacent operating end section 22, while the hinge connection 18 is formed on the operating main section 20 at a distance from the operating end section 22.
  • the hinge connection 18 and hence the operating element 14 can advantageously be displaced from a distance, so that the locking element 12 can extend substantially along the receiving opening 10 facing downwards during use, while adjustment between the locking position and the release position can be operated from a floor upper side 16.
  • an operating opening 24 is formed which connects the floor upper side 16 with a floor lower area 26 which is defined by the main body 6, while the operating main section 20 both in the locking position and in the release position extends through the operating opening 24, such that the operating end section 22 is on the floor upper side 16 while the hinge connection 18 is in the floor lower area 26.
  • the operating opening 24 is for instance formed in a wall section of the main body 6 at the floor upper side 16, which wall section, moreover, can then help counteract the operating end section 22 sinking to a position that is not manually accessible from the floor upper side 16.
  • the operating end section 22, to that end is preferably configured correspondingly, for instance with a bent-over portion, a widening and/or thickening which at least in the locking position and the release position does not fit through the operating opening 24.
  • the operating opening 24 and the operating main section 20 are dimensioned with mutual play to enable an operating movement of the operating main section 20 relative to the main body 6.
  • Such play can make it possible, in particular, that the operating main section 20 can be moved relative to the operating opening 24 not only by translation but also by rotation, which makes adjustment between different positions easier. Moreover, a friction between the operating opening 24 and the operating main section 20 can thus be relatively low, which can promote easy operation.
  • At least one of the operating main section 20 and the locking element 12 is configured at the hinge connection 18 to counteract movement of the hinge connection 18 through the operating opening 24.
  • the hinge connection 18 being unintendedly moved up too far during adjustment between the different positions can thus be counteracted.
  • a widening or thickening is provided which does not fit through the operating opening 24.
  • Such a widening or thickening is preferably part of the locking element 12, so that the operating element 14 at the hinge connection can be narrow enough, during assembly of the locking assembly 2, in particular before the hinge connection 18 has been formed, to still fit through the operating opening 24 from above.
  • the main body 6 defines a floor plane V along which the scaffolding floor part 4 substantially extends during use, with the receiving opening 10 defining along the floor plane V a receiving opening range Bl, and with the operating opening 24 defining along the floor plane V an operating opening range B2 which does not overlap the receiving opening range Bl.
  • such ranges B 1 and B2 are designated in Fig. IB, while in the remaining examples corresponding ranges can be seen, which, for the purpose of clarity and simplicity of the drawings, are not explicitly indicated.
  • the locking element 12 comprises a locking main section 28 and an adjacent locking end section 30, with the hinge connection 18 formed on the locking main section 28 remote from the locking end section 30.
  • the locking element 12 in the locking position can extend sufficiently far along the receiving opening 10 to lock the ledger 50 effectively in the receiving space 8, while the hinge connection 18 can remain outside the range of the receiving opening 10 so as to make operation from above easier.
  • a locking opening 32 is formed which connects a receiving opening area 34, in which is the receiving opening 10, with a floor lower area 26 which is defined by the main body 6.
  • the floor lower area 26 is in particular near the receiving space 8 and near the floor upper side 16, for instance substantially defined by a part of the main body 6 which is formed from a plate section and which forms a mutual connection between support brackets of the main body 6 which define the receiving space 8. See, as far as that is concerned, for instance the examples of Figs. 5A-C, 6B and 8A-C.
  • Such a locking opening 32 is for instance provided between positions of such supporting brackets.
  • the main body 6 can be relatively sturdy while the locking element 12 can yet be relatively easily adjusted between the different positions.
  • the locking main section 28 extends through the locking opening 32 both in the locking position and in the release position, such that the locking end section 30 is preferably in the receiving opening area 34 while the hinge connection 18 is in the floor lower area 26.
  • the hinge connection 18 can thus remain in the floor lower area 26, easy operation from above via the operating element 14 can remain possible.
  • the locking end section 30 is in the receiving opening area 34 not only in the locking position but also in the release position, a relatively small operating movement can suffice for adjustment from the release position to the locking position.
  • the locking opening 32 can guide the locking element 12 from the release position to the locking position during operation from above via the operating element 14.
  • the locking opening 32 and the locking main section 28 are dimensioned with mutual play to enable a locking movement of the locking main section 28 relative to the main body 6.
  • Such play can make it possible in particular that the locking main section 28 can be moved relative to the locking opening 32 not only by translation but also by rotation, thereby making adjustment between different positions easier. Moreover, thus, a friction between the locking opening 32 and the locking main section 28 can be relatively low, which can promote easy operation.
  • Figs. 4A-B it can be seen, as an example, that such play can make a relatively large range of positions of the locking element 12 within the locking opening 32 possible.
  • the range provided by the play can be smaller at the locking opening 32, for instance substantially corresponding to the play at the operating opening 24.
  • At least one of the locking main section 28 and the operating element 14 is configured to counteract movement of the hinge connection 18 through the locking opening 32.
  • a widening or thickening is provided at the hinge connection 18, for example as part of the locking element 12, as can for instance be seen in Figs. 1A and 3A.
  • the locking opening 32 is provided along the floor plane V between the receiving opening range Bl and the operating opening range B2, as can for instance be seen in Fig. IB.
  • the locking end section 30, which in the locking position is preferably within receiving opening range Bl, can be coupled via the locking opening 32 with the operating end section 22, which in the locking position is preferably within or near the operating opening range B2.
  • the locking end section 30 and the operating end section 22 in the release position are closer to each other than in the locking position, in particular by mutual hinging of the locking main section 28 and the operating main section 20 at the hinge connection 18.
  • the release position is a substantially folded-in position in which the locking end section 30 does not extend into or at least extends less far into the receiving opening range Bl than in the locking position, while the operating end section 22 in both positions mentioned is in or near the operating opening range B2 for easy accessibility and for good stability of both positions.
  • the main body 6 defines a floor lower area 26 which is located near the receiving space 8 and near the floor upper side 16, while the hinge connection 18 is displaceable within the floor lower area 26 relative to the main body 6 for adjustment of the locking element 12 between the locking position and the release position.
  • the displaceability of the hinge connection 18 within the floor lower area 26 concerns in particular two-dimensional displaceability along a plane that during use is transverse to a main direction of the received ledger 50, that is, a plane that extends perpendicularly to the floor upper side 16 along the length direction L of the scaffolding floor part 4.
  • the locking assembly 2 is configured to substantially counteract displacement of the hinge connection 18 normal to the plane mentioned, at least, in the locking position and/or the release position.
  • the locking assembly 2 is configured to enclose the hinge connection 18 in the floor lower area 26 and to make it possible that the locking element 12 and the operating element 14 extend at least partly outside the floor lower area 26. This concerns in particular the dimensioning of the operating opening 24 and the locking opening 32 relative to a widening or thickening which at the hinge connection 18 may be provided on the locking element 12 and/or the operating element 14.
  • the operating element 14 in the release position extends further outside the floor lower area 26 than in the locking position. See, as far as that is concerned, for instance Fig. 3B (release position) relative to Fig. IB (locking position), Fig. 7C (release position) relative to Fig. 6B (locking position), and Fig. 8C (release position) relative to Fig. 8A (locking position).
  • the locking assembly 2 is in the release position, which in some use situations can be a less safe position than the locking position.
  • adjustment from the release position to the locking position can be relatively still easier than adjustment the other way around, in the case where the operating end section 22 in the release position may for instance be operable by a foot whereas foot operation in the locking position, for reasons of safety, may be made more difficult or impossible.
  • safety can be additionally promoted.
  • the locking element 12 in the locking position extends further outside the floor lower area 26 than in the release position, so that the locking element 12, in particular the locking end section 30 in the locking position, can be effectively positioned in and/or along the receiving opening to lock the ledger 50 in the receiving space.
  • the main body 6 is configured to make the hinge connection 18 manually accessible for adjustment of the locking element 12 between the locking position and the release position from an underside 36 (see Fig. 5A) of the scaffolding floor part 4, remote from the floor upper side 16.
  • the locking element 12 can be easily operated not only from above but also from below.
  • the main body 6 is for instance of a relatively open configuration, in particular to make the floor lower area 26, in which is the hinge connection 18, accessible from below.
  • the locking assembly 2 is configured to have the locking element 12 under the influence of gravity move automatically from the locking position to the release position when the ledger 50 is moved via the receiving opening 10 into the receiving space 8.
  • a ledger 50 has been moved partly through the receiving opening 10 from outside of the receiving space 8, while the locking element 12 was in the locking position, in particular while the locking end section 30 was positioned within the receiving opening range Bl.
  • This movement of the ledger 50 relative to the receiving space 8 thus takes care of the ledger, as it were, pushing before it the locking end section 30 into the receiving space 8.
  • Fig. 4B it can be seen that the ledger has been moved further into the receiving space 8, whereby the locking end section 30, as it were, slides off the ledger 50 under the influence of its inherent weight in combination with the inclined shape of the ledger at the point of engagement with the locking end section 30.
  • the locking element 12 can be urged to hinge relative to the operating element 14.
  • the hinge connection 18 can thus be urged to move away from the receiving space 8 (that is, to the right in the view of Figs. 4A-B).
  • the locking element 12 can thereby be automatically adjusted to the release position, such as that release position can be seen in, for instance, Figs. 3A-B.
  • the locking assembly 2 need not constitute any impediment to the quick and easy placement of a scaffolding floor part 4 on one or more ledgers 50, not even when the locking element 12 at that moment is still in the locking position (for instance in that the scaffolding floor part 4 has been stored in the locking position or has passed into the locking position during transportation and/or placement, for instance by tilting).
  • the locking element 12 can be adjusted, by operation from above or from below, to the locking position to lock the ledger 50 in the receiving space 8.
  • the locking assembly 2 is configured to keep the locking element 12 normally, in particular in the absence of active operation, in the release position, as soon as the locking element 12 is in the release position.
  • a stabilization cam 44 may be formed which can engage a lower edge of the locking opening 32 to stabilize the locking element 12 in the release position.
  • the locking element 12 can be stably held in a release position through at least partial enclosure between the ledger 50 and a wall part of the main body 6 in which wall part the locking opening 32 (see Fig. 6A) is formed.
  • mass centres of the locking element 12 and/or the operating element 14 can be so arranged that the locking element 12 can normally be stably held in the release position by gravity, as is for instance the case in the example of Fig. 8C.
  • the locking assembly 2 is configured to keep the locking element 12 normally, in particular in the absence of active operation, in the locking position, as soon as the locking element 12 is in the locking position.
  • a stabilization cam 46 may be formed which can engage a lower edge of the locking opening 32 to stabilize the locking element 12 in the locking position.
  • mass centres of the locking element 12 and/or the operating element 14 can be arranged to stabilize the locking element 12 in the locking position.
  • the operating end section 22 besides serving as an operating means, can also serve as a stabilization or supporting structure, in particular to stabilize the operating element 14 by being supported on an edge of the operating opening 24.
  • a supporting cam 48 (see Fig. IB) may be provided, by way of which the locking element 12 in the locking position can be supported on or against a wall part of the main body 6 that is located near a lower edge of locking opening 32.
  • the locking assembly 2 in the locking position is configured for, through slanting between the locking element 12 and the main body 6, counteracting movement of the ledger 50 from the receiving space 8 through the receiving opening 10, in particular when a respective scaffolding floor part 4 receives an upward force, for instance from a gust of wind.
  • Slanting generally involves relative great forces which are opposed at a relatively small distance from each other.
  • such an effect can occur in particular at the locking opening 32 when the locking element 12 is in the locking position and the ledger 50 exerts a downward force on the locking element 12 (in other words: the ledger 50 then behaves as if it is trying to exit the receiving space 8 via the receiving opening 10, against the locking by the locking element 12).
  • the locking assembly 2 can provide a particularly reliable locking and moreover be particularly durable.
  • At least one of the locking element 12 and the operating element 14 is movable relative to the main body 6 through a combined rotation-translation movement, in particular in that the hinge connection 18 can be two -dimension ally displaceable along a surface, as has been explained elsewhere in this description, while the operating opening 24 and the locking opening 32 provide play.
  • FIG. 2A-B, 4A-B, 5A, 7A-B and 8B show intermediate positions which can be taken up or passed upon transition from the release position to the locking position and/or vice versa.
  • the locking element 12 and the operating element 14 are both free of any fixedly positioned connection with the main body 6.
  • Fixedly positioned connections are a fixedly positioned hinge connection, a fixed sliding guide, and a play-free enclosure.
  • the locking element 12 and the operating element 14 can cooperate with the main body 6 in a particularly robust manner, while the locking assembly 2 is easily operable using the displaceable hinge connection 18.
  • Figs. 5A-C show an example of an embodiment of a scaffolding floor part 4 comprising two locking assemblies 2.
  • the locking assemblies 2 are configured according to the example of Figs. 1A-4B.
  • a locking assembly 2 may for instance be alternatively or additionally configured according to one or more other examples shown and/or described herein.
  • Fig. 5A shows the scaffolding floor part 4 in a position corresponding to that of Fig. 4A, that is, where the ledgers 50 are moved into the receiving spaces 8 as a result of which the locking elements 12 are automatically moved to the release position.
  • Fig. 5B shows the scaffolding floor part 4 in a position corresponding to that of Figs. 3A-B, that is, a release position.
  • Fig. 5C shows the scaffolding floor part 4 in a position corresponding to that of Figs. 1A-B, that is, a locking position.
  • the scaffolding floor part 4 extends along a length direction L between two respective floor part ends 38, while on at least one of the floor part ends 38, a respective locking assembly 2 is provided.
  • the scaffolding floor part 4 can advantageously at opposite ends 38 thereof be locked to a respective ledger 50 to effectively counteract coming loose for instance as a result of wafting, so that the scaffolding floor part 4 can be particularly safe in use.
  • the scaffolding floor part 4 comprises a floor profile 40 which forms a floor surface at the floor upper side 16 of the main body 6.
  • the floor profile 40 can be of a type known per se and may for instance be connected with a connecting part of the main body 6, formed from a plate section.
  • the floor profile 40 preferably has a substantially open underside so as to allow the floor lower space 26 to be accessible for operation of the locking element 12 and/or the operating element 14 from below.
  • the figures illustrate examples of embodiments of a method for adjusting a mutual locking of a scaffolding floor part 4 and a ledger 50 which can support the scaffolding floor part 4.
  • the method comprises: providing the scaffolding floor part 4; providing a ledger 50 in the receiving space 8 of the locking assembly 2 of the scaffolding floor part 4; and adjusting the locking element 12 of the locking assembly 2 between the release position and the locking position.
  • a ledger 50 is received via the receiving opening 10 into the receiving space 8. If the locking element 12 at that moment was still in the locking position, the thus receiving of the ledger 50 can have the locking element 12 move automatically to the release position, as explained herein with reference to Figs. 4A-B, and as can also be seen in Figs. 5A-B. After the ledger 50 has been received in the receiving space 8, the locking element 12 can be adjusted manually to the locking position, as desired, for instance from below via the floor lower space 26 or from above from the floor upper side 16.
  • the operating end section 22 is moved substantially up, that is, away from the operating opening 24, for instance along a path that is schematically indicated in Fig. 3B with arrow I.
  • the locking element 12 can be moved through the locking opening 32 out of the floor lower space 26 towards the locking position (shown in Figs. 1A-B), by moving the operating element along a path schematically indicated in Fig. 3B with arrow II. Doing so, the locking element 12 and the operating element 14 pass an intermediate position which is represented in Figs. 2A-B.
  • the described combination of movements can be carried out substantially in reverse, whereby the intermediate position of Figs. 2A-B is then also passed in a reverse direction.
  • the locking position of Figs. 6A-B can be achieved via, in succession, the intermediate positions of Figs. 7B and 7 A.
  • the release position of Fig. 7C can be achieved via, in succession, the intermediate positions of Fig. 7A and 7B.
  • a scaffolding floor part can comprise a number of locking assemblies other than two, for instance a single locking assembly or four locking assemblies.
  • a ledger on which the scaffolding floor part can be supported need not be cylinder-shaped and may instead have, for instance, an angular profile.
  • a locking assembly and/or an associated scaffolding floor part may possibly be configured to have the operating end section of the operating element countersunk to a point below or just up to a walkable floor surface, at least in the locking position and possibly in the release position, for instance by means of a recess in the main body and/or in the floor part, which recess provides preferably next to the countersunk operating end section an operating space accessible from above so as to still allow the operating end section to be engaged manually from above.
  • a main body of a locking assembly may possibly be integrally formed with another part or portion of a scaffolding floor part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Ladders (AREA)

Abstract

L'invention concerne un ensemble de verrouillage destiné à verrouiller une partie de plancher d'échafaudage à un longeron qui peut supporter la partie de plancher d'échafaudage. Ledit ensemble de verrouillage comprend : un corps principal qui définit un espace de réception pour le longeron, avec une ouverture de réception à travers laquelle le longeron peut se déplacer dans ou hors de l'espace de réception ; un élément de verrouillage qui, sous l'effet de son déplacement par rapport au corps principal, est réglable entre une position de verrouillage et une position de libération, l'élément de verrouillage dans la position de verrouillage s'étendant le long de l'ouverture de réception pour empêcher le déplacement du longeron de l'espace de réception à travers l'ouverture de réception, l'élément de verrouillage dans la position de libération s'étendant peu, ou pas du tout, le long de l'ouverture de réception ; et un élément de commande qui, à partir d'un côté supérieur de plancher du corps principal à distance de l'ouverture de réception, est mobile manuellement par rapport au corps principal et qui est accouplé à l'élément de verrouillage par l'intermédiaire d'une liaison articulée mutuelle qui peut être déplacée conjointement avec l'élément de verrouillage par rapport au corps principal.
PCT/NL2022/050606 2021-11-02 2022-10-28 Ensemble de verrouillage pour une partie de plancher d'échafaudage, partie de plancher d'échafaudage comprenant l'ensemble de verrouillage et procédé WO2023080778A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2029598A NL2029598B1 (nl) 2021-11-02 2021-11-02 Borgingssamenstel voor een steigervloerdeel, steigervloerdeel omvattende het borgingssamenstel, en werkwijze
NL2029598 2021-11-02

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WO2023080778A1 true WO2023080778A1 (fr) 2023-05-11

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5704449A (en) 1995-04-14 1998-01-06 Ono; Tatsuo Scaffolding planks
FR2781534A1 (fr) * 1998-07-21 2000-01-28 Entrepose Echafaudages Dispositif de verrouillage sur une traverse horizontale
KR200331244Y1 (ko) * 2003-06-30 2003-10-30 주식회사 봉천 접철식 작업대에 사용되는 작업판용 조인트
KR20050115215A (ko) * 2005-11-22 2005-12-07 김광부 볼플렌져로 고정되는 비계용 발판의 고정 클램프
DK201970414A1 (en) * 2019-06-28 2021-03-04 Pcp Corp A/S A retention member adapted for retaining a scaffold plank, a scaffolding system having a retention member, a method for retaining a scaffold plank to a scaffold beam and a method for releasing a scaffold plank being retained to a scaffold beam
CN214462475U (zh) * 2021-02-07 2021-10-22 安徽工业大学 一种高稳定性脚手架支撑板

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5704449A (en) 1995-04-14 1998-01-06 Ono; Tatsuo Scaffolding planks
FR2781534A1 (fr) * 1998-07-21 2000-01-28 Entrepose Echafaudages Dispositif de verrouillage sur une traverse horizontale
KR200331244Y1 (ko) * 2003-06-30 2003-10-30 주식회사 봉천 접철식 작업대에 사용되는 작업판용 조인트
KR20050115215A (ko) * 2005-11-22 2005-12-07 김광부 볼플렌져로 고정되는 비계용 발판의 고정 클램프
DK201970414A1 (en) * 2019-06-28 2021-03-04 Pcp Corp A/S A retention member adapted for retaining a scaffold plank, a scaffolding system having a retention member, a method for retaining a scaffold plank to a scaffold beam and a method for releasing a scaffold plank being retained to a scaffold beam
CN214462475U (zh) * 2021-02-07 2021-10-22 安徽工业大学 一种高稳定性脚手架支撑板

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