• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Connecting device (1) of a modular slab formwork supporting structure secondary member or the like on a modular slab formwork supporting structure primary beam or the like. The connecting device (1) comprises a lower hooking structure (2) comprising a first (3) and a second (4) hooking lug spaced laterally apart from each other, and further comprising less a third hooking lug (8) eccentric between the first and second hooking lugs (3, 4).
    公开号:FR3021985A1
    申请号:FR1455142
    申请日:2014-06-05
    公开日:2015-12-11
    发明作者:Pascal Perrotin；Sebastien Philippe；Alexandre Souvignet
    申请人:Alphi SAS；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a device for connecting a secondary element of modular slab formwork support structure or the like to a primary beam of modular slab formwork support structure or the like. Document WO 2013/098159 A1 discloses a secondary element of modular slab formwork support structure or the like comprising at its respective ends connection devices for connection to a primary beam of modular slab formwork support structure or similar. Each connecting device comprises a lower hooking structure shaped to come into vertical support by simple downward movement on a lateral structure receiving the primary beam in a vertical bearing zone, and to hook onto the lateral structure of reception so as to oppose any axial displacement towards and away from the primary beam. In the document WO 2013/098159 A1, each connecting device comprises a picking nose provided with a transverse groove opening downwards, the hooking nose and its transverse groove extending along the entire width of the secondary element. The secondary element thus bears continuously along its entire width on the lateral receiving structure of the primary beam, which is in the form of a lateral chute. The disadvantage of such connecting devices is that the lateral receiving structure of the primary beam, in the form of side trough with an upwardly facing opening face, may contain concrete debris accidentally received during its use. This concrete debris prevents a good connection of the secondary element by hooking connecting devices in the lateral trough of the lateral structure receiving the primary beam. In addition, a poor connection compromises the good flatness of the upper face of the modular slab formwork structure or the like on which are laid plywood planks for pouring a concrete slab. Poor flatness can result in a concrete slab with critical flatness defects. To limit the risk of conflict between concrete debris and a connection device of a secondary element of modular slab formwork support structure or the like, it has been proposed a secondary element E as illustrated in FIGS. 2 of the prior art. The secondary element E 74FDEP.docx 2 comprises two secondary beams P2 arranged one away from the other and interconnected rigidly by spacer means. The secondary element E comprises, at each of its ends, a connecting device D with a lower hooking structure constituted by two hooking pins C1 and C2 laterally spaced apart from one another by projecting towards the low at the ends of the connecting device D and able to engage in the lateral chute G of the lateral receiving structure of the primary beam P1. The disadvantage of such connecting devices is that when several secondary elements E are arranged in bearing on primary beams PI to form a modular slab formwork support structure or the like S, the gap to be respected between the secondary elements E can cause a positioning of the hooking pin C1 in the space between the chute of the PI primary beam and the lateral SLR receiving structure of the PP support plate of the adjacent ES support stay, as illustrated FIG. 2. And it is then not possible to move the secondary element so as to bring the picking pin C1 onto the lateral receiving structure SLR of the carrying plate PP since this would leave a too large gap between the secondary element E and the adjacent secondary element E '.
    [0002] The claw lug C1 being unsupported, the secondary element E is then not held in a stable position and presents a risk of tilting may cause the fall of a user wandering on top of the modular support structure of Slab formwork or the like S. A problem proposed by the invention is to design a device for connecting a subframe of modular slab formwork support structure or the like to a slab formwork support structure primary beam. or similar, avoiding the risks of unstable position of the secondary element while limiting the risk of conflict with concrete debris that would be present in the lateral structure receiving the primary beam. To achieve these objects as well as others, the invention proposes a device for connecting a secondary element of modular slab formwork support structure or the like on a primary beam of modular slab formwork support structure or the like, comprising a lower hooking structure shaped to bear vertically by simply moving downward on a lateral structure for receiving the primary beam in a vertical bearing zone, and for hooking on the lateral structure 74FDEP.docx 3 receiving to oppose any axial displacement to and away from the primary beam, the lower hook structure comprising first and second hooking pins laterally spaced apart from each other. protruding downwards at the ends of the connecting device and adapted to engage in a lateral trough of the lateral receiving structure of the primary beam according to the invention: the lower hooking structure comprises at least one third hooking lug disposed between the first and second hooking lugs, the third hooking lug is eccentric between the first and second hooking lugs. The lower hooking structure of the connecting device has a discontinuous nature making it possible to limit the risk of conflict with concrete debris that may be in the lateral receiving structure of the primary beam and / or in the lateral structure for receiving the plate. carrying the support stay. In the case where one of the first or second hooking lugs is located between the lateral receiving structure of a primary beam and the lateral structure of receiving the support plate of a support stay, the connection device according to the invention may nevertheless rest stably on the primary beam by means of the third hooking lug and the other of the first or second hooking lugs, engaged in the lateral structure of receiving the primary beam. The eccentric nature of the third hooking lug between the first and second hooking lugs ensures that there is always a stable solution of the secondary element on the primary beam effectively limiting the risks of tilting of the secondary element around the direction of elongation of said secondary element. Indeed, the setting of the connection device in the lateral structure of reception of the primary beam can always be done by at least two hooking pins spaced from each other by at least more than half the width of the connecting device. Preferably, the third hooking lug may be spaced laterally away from the nearest of the first or second hooking lugs at a distance of at least about 6 cm, and preferably at most 10 cm.
    [0003] Such a distance ensures that at worst: - either the third hooking lug is supported in the lateral structure receiving the primary beam, while the nearest first or 74FDEP.docx 4 second hooking lugs is in a vacuum between the carrier plate of the support stay and the lateral structure of reception of the primary beam, - or the third hooking pin is in a vacuum between the carrying plate of the support stay and the lateral receiving structure of the primary beam, while the nearest of the first or second hooking lugs is in support on the lateral structure of receiving the support plate of the support forestay. Preferably, the third hooking lug may be spaced laterally with respect to the nearest of the first or second hooking lugs at a distance of at most about 10 cm. Such a distance makes it possible to avoid reducing too much the stability of the support of the connecting device when the latter is resting on the lateral structure of reception of the primary beam by means of one of the first and second pins of hooking and third picking hook.
    [0004] Preferably, it can be provided that: the lower hooking structure comprises a fourth hooking lug disposed between the first and second hooking lugs, the third hooking lug is closer to one of the first or second hooking lugs. the fourth hooking lug is closer to the other of the first or second hooking lugs. The presence of the fourth hooking pin makes it possible to overcome the positioning in the vacuum of any one of the first or second hooking lugs without requiring the user to invert the secondary element when it is placed on the primary beam of modular structure slab formwork support or the like. As for the third hooking lug, the fourth hooking lug may be spaced laterally away from the nearest of the first or second hooking lugs at a distance of at least about 6 cm, and preferably from plus about 10 cm. Advantageously, the connecting device can extend laterally in a width of about 30 cm. Preferably, the hooking lugs may have a width of between about 10 mm and about 20 mm, width that allows a satisfactory hooking and support in the lateral structure of reception of the primary beam, limiting the risk of deterioration of the structure the lateral beam receiving the primary beam, but also effectively limiting the risk of conflict with concrete debris present in the lateral structure receiving the primary beam. Advantageously, the connecting device may furthermore comprise an upper structure connected by two lateral struts to the lower hooking structure, the upper structure, the two lateral struts and the lower hooking structure thus forming a frame provided with an opening. The connecting device, thanks to its opening, can thus serve as a handle for the porting and handling of the secondary element. Advantageously, the upper structure may be an upper axial support structure adapted to come bearing laterally against the primary beam to ensure optimal lateral wedging of the secondary element between two primary beams in the longitudinal direction of elongation of the secondary element. Advantageously, the connecting device may be metal, preferably aluminum or aluminum alloy. According to another aspect of the invention, there is provided a secondary element of modular slab formwork support structure or the like, comprising two connecting devices such as the connection device described above.
    [0005] In a first embodiment, the secondary element comprises two secondary beams arranged parallel and one away from each other between the two connecting devices. In another embodiment, the secondary element comprises a single substantially inverted U-shaped section section defining an upper face and two secondary panel side faces, said profile extending longitudinally between the two connecting devices. Other objects, features and advantages of the present invention will become apparent from the following description of particular embodiments, with reference to the accompanying figures, in which: FIG. 1 is a perspective view of a modular support structure slab formwork or the like provided with secondary elements with known connection devices; Figure 2 is a perspective detail view of the modular slab formwork support structure or the like of Figure 1; FIG. 3 is a perspective view of a particular embodiment of connection device according to the invention; Fig. 4 is a side view of the connecting device of Fig. 3; FIG. 5 is a perspective detail view of a modular secondary member support structure using the connecting device of FIG. 3; FIG. 6 is a side view of the modular slab formwork support structure; or the like illustrated in Figure 5; FIG. 7 is a perspective view of a first embodiment of secondary elements provided with connection devices according to the invention; FIG. 8 is a perspective view of a second embodiment of secondary elements provided with connection devices according to the invention; and FIG. 9 is a cross section of the secondary element of FIG. 8. In FIGS. 3 to 5 is illustrated a particular embodiment of connection device 1 according to the invention. Such a connecting device 1 is intended to ensure the connection of a secondary element 15 of modular slab formwork support structure or the like on a primary beam 7 of modular slab formwork support structure or the like. To do this, the connecting device 1 comprises a lower hooking structure 2 shaped to come into vertical support by simple downward movement on a lateral receiving structure of the primary beam 7, according to a vertical bearing area Z, and to cling to the lateral receiving structure 6 so as to oppose any axial displacement (in the axial direction II) to and away from the primary beam. The lower hooking structure 2 comprises a first lug 3 and a second hooking lug 4 laterally spaced apart from each other in the transverse direction II-II projecting downwards at the ends of the connecting device. 1. The first and second hooking lugs 3 and 4 are able to engage in a lateral chute 5 of the lateral receiving structure 6 of the primary beam 7 (see FIGS. 5 and 6). The lower hooking structure 2 further comprises a third hooking lug 8 and a fourth hooking lug 9, arranged between the first and second hooking lugs 3 and 4. The third and fourth hooking lugs 8 and 9 are eccentric between the hooks first and second hooking lugs 3 and 4. The third hooking lug 8 is closer to the first hooking lug 3, while the fourth hooking lug 9 is closer to the second hooking lug 4. 741, DEP.docx 7 More specifically, each of the hooking lugs 3, 4, 8 and 9 has a respective lower face 3a, 4a, 8a or 9a intended to rest on the lateral receiving structure 6 of the primary beam 7. The sum of the lower faces 3a, 4a, 8a and 9a thus form the zone of vertical support Z.
    [0006] The hooking lugs 3, 4, 8 and 9 also have side surfaces 3b, 3c, 4b, 4c, 8b, 8c, 9b and 9c. The third hooking lug 8 is laterally spaced apart from the first hooking lug 3 by a distance d.sub.1 such that the respective remote surfaces 3c and 8b of the third hooking lug 8 and the first hooking lug 3 are spaced apart. on the other, not less than 6 cm and not more than 10 cm. In the same way, the fourth hooking lug 9 is spaced laterally away from the second hooking lug 4 by a distance d2 such that the respective remote surfaces 9c and 4b of the fourth hooking lug 9 and the second hooking lug 4 are at least 6 cm apart and not more than 10 cm apart. The connecting device 1 extends laterally in a width L of about 30 cm. The hooking lugs 3, 4, 8 and 9 have a respective width L1, L2, L3 or L4 of between about 10 mm and about 20 mm.
    [0007] It will be seen more particularly in FIG. 3 that the connecting device 1 further comprises an upper structure 10 connected by two lateral spacers 11 and 12 to the lower hooking structure 2. The upper structure 10, the two spacers 11 and 12, and that the lower hooking structure 2 thus form a frame 13 provided with an opening 14.
    [0008] FIG. 6 shows more particularly that the upper structure 10 is an upper axial support structure able to bear laterally against the primary beam 7. The connecting device 1 is made of metal, preferably of aluminum or aluminum alloy. aluminum.
    [0009] In FIGS. 7 to 9 are illustrated two particular embodiments of secondary elements 15 of modular slab formwork support structure or the like comprising two connecting devices 1a and 1b identical to the connecting device of FIG. the embodiment illustrated in Figure 7, the connecting devices 1a and 1b are interconnected by two secondary beams 16 and 17, arranged parallel and one away from the other. In the embodiment illustrated in FIGS. 8 and 9, the connecting devices 1a and 1b are interconnected by a single section 18 extending longitudinally in the longitudinal direction I-I. It is seen more particularly in Figure 9 that the profile 18 has a cross section substantially inverted U-shaped defining an upper face 18a and two side faces 18b and 18c. Due to the continuous character of the upper face 18a of the profile 18, the secondary element 15 is thus of the secondary panel type. The use of a connection device 1 according to the invention will now be explained in more detail with the aid of FIG.
    [0010] As explained in detail by means of prior art FIGS. 1 and 2, a modular slab formwork support structure or the like is constructed from ES support struts and P1 primary beams on which secondary elements E or E 'are reported. FIG. 5, relating to the invention, shows a support support 19 with a bearing plate 20 on which a primary beam 7 is supported by means of its attachment nose 21. The secondary element 15, which is of the secondary panel type with its profile 18 with a substantially inverted U-shaped cross-section, is then placed on the primary beam 7 in a simple downward vertical movement illustrated by the arrow 22 in FIG. 5. The displacement according to the arrow 22 makes it possible to bring the lower hooking structure 2 in vertical support on the lateral receiving structure 6 of the primary beam 7 which is here a lateral chute 5. At the end of setting of the secondary element 15 on the primary beam 7, it is in the configuration shown in Figure 6 in which the secondary element 15 is hooked to the receiving side structure 6 of the primary beam 7, the lower structure of eighth 2 being attached to the lateral receiving structure 6 so as to oppose any axial displacement in the longitudinal direction I-I towards and away from the primary beam 7.
    [0011] The positioning of the secondary element 15 in the longitudinal elongation direction III-III of the primary beam 7 is determined by multiple parameters, among which the position of the adjacent secondary elements already bearing on the primary beam 7. In the figure 5, the user is thus forced to arrange the secondary element 15 on the primary beam 7, so that the first hooking lug 3 is inadvertently located in correspondence of the free space between the lateral receiving structure 6 of the primary beam 7 and the structure 741, DEP.docx 9 receiving side 23 of the carrying plate 20. The second hooking lug 4 is itself well positioned vis-à-vis the lateral structure of reception 6 of the primary beam 7. If the connection device 1 had only the first and second hooking lugs 3 and 4, the secondary element 15 would present a risk of failover. at the end of its installation on the primary beam 7, or even rock. Fortunately, thanks to the connecting device 1 according to the invention, the third hooking lug 8 located near the first hooking lug 3 is located in correspondence of the lateral receiving structure 6 where it will provide a satisfactory support of the device connection 1 to limit the risk of tilting of the secondary element 15 around the longitudinal direction II. This risk of tilting is all the more effectively limited as the third hooking lug 8 is eccentric between the first and second hooking lugs 3 and 4 so that the connecting device 1 bears on the primary beam 7 according to a distance greater than half of its width. It is of course possible that, during another setting of the secondary element 15 on the primary beam 7, the third hooking lug 8 will come this time in correspondence of the space situated between the lateral receiving structure 6 and the receiving side structure 23. But in such a case, because of the distance dl of at least about 6 cm (see FIG. 3), the first hooking peg 3 bears against its bottom face 3 a on the lateral structure 23 of the carrying plate 20, so that the connecting device will rest according to a support having a width equal to the entire width of the connecting device 1. The fourth hooking pin 9 has exactly the same utility as the third hooking lug 8 in the connecting device 1 at the other end of the secondary element 15 for which, in the case of the installation of Figure 5, it is the second lug 4 which is located located in correspondence of the space between a receiving lateral structure 6 and a receiving lateral structure 23. The present invention is not limited to the embodiments which have been explicitly described, but it includes the various variants and generalizations thereof. within the scope of the claims below.
    权利要求:
    Claims (12)
    [0001]
    CLAIMS1 - Device for connecting (1) a secondary element (15) of modular slab formwork support structure or the like on a primary beam (7) of modular slab formwork support structure or the like, comprising a lower structure hooking device (2) shaped to come into vertical support by simple downward movement on a lateral receiving structure (6) of the primary beam (7) in a vertical bearing zone (Z), and for holding on to the lateral receiving structure (6) so as to oppose any axial displacement towards and away from the primary beam (7), the lower hooking structure (2) comprising a first (3) and a second ( 4) hooking lugs laterally spaced apart from each other by projecting downwards at the ends of the connecting device (1) and able to engage in a lateral trough (5) of the lateral structure reception (6) of the primary beam (7), characterized in that: - the lower hooking structure (2) comprises at least one third hooking lug (8) arranged between the first (3) and second (4) hooking lugs, - the third picking lug (8) is eccentric between the first (3) and second (4) hooking lugs.
    [0002]
    2 - Connecting device (1) according to claim 1, characterized in that the third hooking lug (8) is laterally spaced apart from the nearest of the first (3) or second (4) hooking lugs according to a distance (dl) of at least about 6 cm, and preferably at most about 10 cm.
    [0003]
    3 - Connecting device (1) according to one of claims 1 or 2, characterized in that: - the lower hooking structure (2) comprises a fourth hooking lug (9) disposed between the first (3) and second (4) hooking lugs, - the third hooking lug (8) is closer to one of the first (3) or second (4) hooking lugs, - the fourth hooking lug (9) is closer to the other of the first (3) or second (4) hooking lugs.
    [0004]
    4 - Connecting device (1) according to claim 3, characterized in that the fourth hooking lug (9) is spaced laterally away from the nearest of the first (3) or second (4) hooking lugs according to a distance (d2) of at least about 6 cm, and preferably at most about 10 cm.
    [0005]
    5 - Connecting device (1) according to any one of claims 1 to 4, characterized in that the connecting device (1) extends laterally in a width (L) of about 30 cm.74FDEP.docx 11
    [0006]
    6 - Connecting device (1) according to any one of claims 1 to 5, characterized in that the hooking lugs (3, 4, 8, 9) have a respective width (L1, L2, L3, L4) included between about 10 mm and about 20 mm.
    [0007]
    7 - Connecting device (1) according to any one of claims 1 to 6, characterized in that the connecting device (1) further comprises an upper structure (10) connected by two lateral spacers (11, 12) to the lower hooking structure (2), the upper structure (10), the two lateral spacers (11, 12) and the lower hooking structure (2) thus forming a frame (13) provided with an opening (14).
    [0008]
    8 - Connecting device (1) according to claim 7, characterized in that the upper structure (10) is an upper axial bearing structure adapted to come bearing laterally against the primary beam (7).
    [0009]
    9 - Connecting device (1) according to any one of claims 1 to 8, characterized in that it is metal, preferably aluminum or aluminum alloy.
    [0010]
    10 - Secondary element (15) of modular slab formwork support structure or the like comprising two connecting devices (1a, 1b) according to any one of claims 1 to 9.
    [0011]
    11 - secondary element (15) according to claim 10, characterized in that between the two connecting devices (1a, 1b) extend longitudinally two secondary beams (16, 17) arranged parallel and one away the other.
    [0012]
    12 - secondary element (15) according to claim 10, characterized in that between the two connecting devices (1a, 1b) extends longitudinally a single section (18) with a substantially inverted U-shaped cross section defining a face upper (18a) and two side faces (18b, 18c) of secondary panel.
    类似技术:
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    同族专利:
    公开号 | 公开日
    FR3021985B1|2018-05-25|
    引用文献:
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    GB2338260A|1998-06-09|1999-12-15|Sgb Services Plc|Scaffold comprising platform and ladders|
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    FR2916006A1|2007-05-10|2008-11-14|Nord Coffrage Sa|Concrete beam maintaining equipment, has horizontal metallic installation plates supporting beam during wedging operation and fixed on vertical supports e.g. shoring towers, and guide rails arranged on three sides of plates|
    EP2039848A1|2007-09-18|2009-03-25|Salemo & Merca, LDA|Support hooks and headboard for scaffold platforms|
    EP2309076A2|2009-10-02|2011-04-13|Johannes Weiss|Scaffold click-in board|
    WO2013098159A1|2011-12-29|2013-07-04|Friedr. Ischebeck Gmbh|Panel for a system ceiling formwork, and a system ceiling formwork|
    DE102012220034A1|2012-11-02|2014-05-08|Wilhelm Layher Verwaltungs-Gmbh|Adjustable scaffold floor|EP3798387A1|2019-09-26|2021-03-31|Sistemas Técnicos de Encofrados, S.A.|Support system for formworks|
    US10982452B1|2020-07-31|2021-04-20|Bond Formwork Systems, LLC|Secondary joist profile for grid systems|
    US11047142B1|2020-07-31|2021-06-29|Bond Formwork Systems, LLC|Main beam structure and profile for formwork grid systems|
    US11268289B2|2020-07-31|2022-03-08|Bond Formwork Systems, LLC|Drophead nut for formwork grid systems|
    US11225802B2|2017-10-12|2022-01-18|George CHARITOU|Prop head assembly|
    法律状态:
    2015-05-30| PLFP| Fee payment|Year of fee payment: 2 |
    2015-12-11| PLSC| Publication of the preliminary search report|Effective date: 20151211 |
    2016-04-29| RM| Correction of a material error|Effective date: 20160329 |
    2016-04-29| TQ| Partial transmission of property|Owner name: ALPHI, FR Effective date: 20160329 Owner name: UNIVERSITE DE CHAMBERY, FR Effective date: 20160329 |
    2016-06-13| PLFP| Fee payment|Year of fee payment: 3 |
    2017-06-06| PLFP| Fee payment|Year of fee payment: 4 |
    2018-06-11| PLFP| Fee payment|Year of fee payment: 5 |
    2019-06-20| PLFP| Fee payment|Year of fee payment: 6 |
    2020-06-16| PLFP| Fee payment|Year of fee payment: 7 |
    2021-06-02| PLFP| Fee payment|Year of fee payment: 8 |
    2021-10-15| CA| Change of address|Effective date: 20210909 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1455142|2014-06-05|
    FR1455142A|FR3021985B1|2014-06-05|2014-06-05|CONNECTING DEVICE WITH IMPROVED STABILITY|FR1455142A| FR3021985B1|2014-06-05|2014-06-05|CONNECTING DEVICE WITH IMPROVED STABILITY|
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