• 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:
    The invention relates to a safety clamp for a formwork structure of the type comprising at least one putlog supported by at least one ledger disposed perpendicular to the putlog, the clamp comprising a top body and a bottom body able to move with respect to one another, wherein the bottom body comprises a terminal for receiving a ledger having a recess for receiving a matching projection of the ledger.
    公开号:ES2794674A2
    申请号:ES202090044
    申请日:2018-04-09
    公开日:2020-11-18
    发明作者:Felix Jose Luis Ubinana
    申请人:Sistemas Tecnicos de Encofrados SA；
    IPC主号:
    专利说明:

    [0002] Safety clamp for formwork structure
    [0004] The present invention refers to safety jaws for formwork structures. The present invention also refers to safety clamps that hold perimeter protection systems, for example, body guards, or other collective protection systems in temporary formwork constructions.
    [0006] Construction site safety and accident prevention have become vitally important in the construction industry.
    [0008] In the construction sector there are various risk situations. For example, there is a risk of people and objects falling at different levels, before which the need for edge protection arises. In particular, safety rails in temporary constructions protect workers and operators from falls from height through vertical gaps, formwork edges, slab edges, and running edges of sloping and flat roofs.
    [0010] There is also the risk that lateral pressure caused by the concrete -especially fresh concrete- in a floor will cause the extreme belt beam to move and move out of its place, causing an accident with serious consequences.
    [0012] A guardrail is a set made up of a safety railing, also called a perimeter railing, an intermediate slat or horizontal bar and a plinth or skirting board. The purpose of the bodyguard is to protect against the risk of accidental falls into the void of objects or people who work or circulate next to it.
    [0014] An upright or guard post is a vertical and elongated element, that is to say, a post or the like that allows the anchorage of the guard body assembly to the edge of the opening to be protected.
    [0016] Safety rails usually have a minimum height of three feet from floor level, while skirting boards usually have a minimum height of six inches.
    [0017] According to the UNE-EN 13374 standard, it is mandatory to use a guard for slopes greater than two meters. In addition, the railings have to be resistant, made of a rigid material and be able to withstand a minimum load of one hundred and fifty kilograms per linear meter. Normally steel, aluminum or wood are used to manufacture the bodyguards, although other materials such as plastics can also be used. Likewise, the bodyguard must not deviate from an angle greater than fifteen degrees above the vertical.
    [0019] Currently, clamps are known for fixing the elements of the formwork. However, these jaws have load limitations. Specifically, in the event that the applied load accidentally exceeds a certain amount, the formwork elements may come out of position due to the impacts produced by the load.
    [0021] It is an object of the present invention to disclose a safety device that can serve to position and hold uprights of the body guard at the same time as applying a clamping pressure on a strap beam and thus maintain the desired position of the body guard and safety clamp assembly. .
    [0023] More specifically, the present invention discloses a device that provides elements for restricting a rotational movement with respect to the formwork, even in the event that the applied load accidentally exceeds the clamping pressure clamping capacity of a safety jaw on the strap beam.
    [0025] In certain embodiments, the present invention also aims at a better adaptation of the strap beam and the strap holder and thus acquire stability once the clamping pressure of the jaw is applied. In certain embodiments, the present invention is adapted to two particular positions: a first position or positioning lateral to the strap beam and a second position or positioning at the end of the strap beam.
    [0027] More specifically, the present invention discloses a safety clamp for a formwork structure of the formwork structure type comprising at least one strap beam supported for at least one strap-bearing beam arranged perpendicular to the strap beam, the clamp comprising an upper body and a lower body capable of movement with respect to each other, the lower body comprising a terminal for receiving the belt-carrying beam with a recess for receiving a conjugate projection of the belt-carrying beam. Preferably, said terminal is a plate. More preferably, the entree has a triangular or prismatic triangular shape.
    [0029] In an especially preferred embodiment, the jaw is a jaw for holding a guard post as a formwork structure and the upper body comprises:
    [0031] a) an upper guide comprising a vertical section and a horizontal section;
    [0032] b) an upright guide for receiving the guard post, said guide being attached to the horizontal section of the upper guide, in which the longitudinal axis of said upright guide is parallel to the longitudinal axis of the vertical section;
    [0034] the lower body comprises:
    [0036] c) a lower guide substantially coaxial to the vertical section of the upper guide, in which the lower guide has a tubular profile with an inner wall size greater than an outer profile of the vertical section of the upper guide, in such a way that said guide The upper one has the ability to slide inside said lower guide, and thus the jaw allows a telescopic elongation between the upper guide and the lower guide; d) a projecting arm of the lower guide intended to support a strap beam on its upper face, wherein said projecting arm is parallel to the horizontal section of the upper guide and comprises a pivot on its upper face intended to be inserted into a recess of the strap beam on its underside to ensure correct positioning of the clamp with respect to the strap beam;
    [0038] and the jaw comprises:
    [0040] e) a threaded bar substantially coaxial to the vertical section and partially located inside the vertical section of the upper guide that has a lower end that remains integrally connected with the lower face of the lower guide and an upper end that projects from the upper guide , in such a way that the threading / unscrewing of a wing nut starts at the upper end and produces a rectilinear movement in the longitudinal direction of the threaded bar, allowing the jaw to adjust to the height of the belt beam.
    [0042] The safety jaw of the present invention has the advantage of temporarily joining body guards with other elements of the lattice assembly such as a strap beam so fast, easy and safe. In particular, the safety clamp combined with a strap beam form a rigid assembly that allows the guardrail uprights to be firmly and safely adapted to a lattice formwork system.
    [0044] Preferably, the upper end of the vertical section is directly connected to one end of the horizontal section. More preferably, the upright guide is connected directly to the end of the horizontal section of the upper guide that is not connected to the vertical section. More preferably, the lower end of the upright of the guard body is inserted through the upper part of the upright guide until contacting the lower face of the same.
    [0046] Preferably, the lower face of the upright guide is located in a lower position, that is to say, at a lower height than the lower face of the horizontal section of the upper guide. With this, it is achieved that the upright guide acts as a physical stop.
    [0047] length of the strap beam when the safety jaw is in the first position.
    [0049] Preferably, the horizontal section of the upper guide has a length that allows a central projection of the strap beam to be located between the upright guide and the vertical section of the upper guide when the side wall of the strap beam is in contact with the lower guide.
    [0051] Preferably, the upright guide has a tooth on its lower face which in a second position of the jaw allows the anchoring of the strap beam while wedging the deck.
    [0053] Preferably, the longitudinal axis of the upright guide is substantially equidistant from the side walls of the strap beam in a second position of the jaw. This avoids the creation of an additional bending moment since the force of the body is applied directly to the upright guide, and this directly to the upper face of the strap beam.
    [0055] Preferably, the jaw has two projecting arms at an intermediate height of the lower guide which are substantially perpendicular to it. More preferably, the two arms extend horizontally in the same direction as the substantially horizontal upper section of the upper guide.
    [0057] Preferably, the upright guide, the upper guide, the lower guide and the arm have a square section tubular profile.
    [0058] Preferably, the stud guide allows the placement of studs up to forty-one millimeters in diameter.
    [0060] The present invention also discloses a formwork system characterized in that it comprises, at least:
    [0062] a) a jaw according to the present invention;
    [0063] b) a strap beam;
    [0064] c) a strap beam that crosses and supports the strap beam;
    [0065] d) a formwork board that rests on said strap beam;
    [0067] wherein said clamp exerts a fixing pressure on the strap beam,
    [0069] and wherein said strap-bearing beam has at its end a projection with a shape conjugated with the recess of the receiving terminal of the strap-bearing beam.
    [0071] Preferably, in the formwork system, said conjugate-shaped projection has a prismatic triangular shape.
    [0073] Preferably, the strap carrier beam comprises an adapter that is located between the strap beam and the strap carrier, said adapter comprising a recess for receiving the strap beam. More preferably, the adapter comprises a U-shaped section that has a projection at each of the two ends of said adapter, separated by a distance equal to the width of the strap beam, in such a way that the lower face of the beam The strap is supported in the central area of the adapter and in which the mentioned projections act as a physical stop in the event of an undesirable rotational movement between the strap beam and the safety jaw. More preferably, the two protrusions on the adapter protrude between the two protruding arms of the jaw.
    [0075] For a better understanding, some drawings of an embodiment of the safety jaw object of the present invention are attached by way of explanatory but not limiting example.
    [0077] Figure 1 shows a side elevation view of a formwork, in which the lateral thrust suffered by the ends of the slab is shown.
    [0078] Figure 2 is a side elevation view illustrating the danger of the belt being thrown out of place caused by said thrust.
    [0080] Figure 3 shows a cross-sectional view of an embodiment of a purlin beam.
    [0082] Figure 4 shows a perspective view of an embodiment of the safety jaw according to the present invention.
    [0084] Figure 5 shows a perspective view of an embodiment of the lower guide, the two arms and the threaded bar.
    [0086] Figure 6 shows a perspective view of an embodiment of the head of the safety jaw.
    [0088] Figure 7 shows a side elevation view of the embodiment of the safety jaw corresponding to a first position of the jaw.
    [0090] Figure 8 shows another rear perspective view of the connection of the safety clamp with the strap beam and a formwork panel in a second position of the safety clamp.
    [0092] Figure 9 shows a side elevation view of the embodiment of the safety jaw of Figure 8 corresponding to the second position.
    [0094] Figure 10 shows a perspective view of an embodiment of a formwork system in a second position.
    [0096] Figure 11 shows a side elevation view of the embodiment of the formwork system shown in Figure 10.
    [0098] Figure 12 shows a perspective view of the adapter and strap holder.
    [0100] Figure 13 is a perspective view of a strap holder and a clamp illustrating the anti-tip function of the clamp.
    [0102] Thus, Figures 3 to 13 show a preferred embodiment of the present invention configured to adapt to two particular positions:
    [0104] a) a first position or lateral positioning to the strap beam;
    [0105] b) a second position or positioning at the end of the strap beam;
    [0107] where Figure 7 shows the safety clamp -1- in the first position, while Figures 8 to 11 show the safety clamp -1- in the second position.
    [0109] Figure 1 shows, in side view, a formwork. More specifically, it shows a detail of one of the ends. The formwork shown coincides with a slab and in the figure you can see: a strap-holder beam -8- that has adapter pieces or adapter -9- integrally attached to the strap-carrier beam -8- and which have a housing to receive strap beams -6- which in turn support boards -7- that act as support and formwork surface for a concrete slab -500-. As can be seen in the figure, the concrete floor -500- generates, at one end, a lateral thrust that is transmitted through the panels -7- towards the last strap beam -6-. The last strap beam -6- (left end of figure 1) supports the slab edge formwork but almost does not support concrete weight on top, unlike the other strap beams -6- that are placed under the slab slab. homigón -500-. As can be seen in figure 2, this can cause a serious accident when said last strap -6- overturns and comes out of its housing in the adapter -9- of the strap -8- holder.
    [0111] Figure 3 shows a purlin beam that has a cross-section with a general polygonal shape in which the base has been designated with the numeral -65-, the side walls with the numerals -64- and -64'- and presenting the face upper two zones -63- and -63'-symmetrical that delimit a central projection with a flat upper face -62- and lateral faces -66- and -66'-. The symmetrical zones -63- and -63'- are slightly inclined downwards to allow easy tilting of the formwork board -7- (not shown) at the time of its dismantling, to which the slight inward inclination of the side faces -66- and -66'-. The side walls -64- and -64'- also have a slight inward inclination, ending inferiorly in small vertical zones.
    [0113] Figure 4 shows the safety clamp -1- for securing a guard post that also has the function of abutting the front of the belt holder and preventing the belt from tipping over caused either by concrete pressure or by actions on the railing comprises a head, a base and a threaded bar -4- also called threaded spindle. The head in turn has an upper guide -3- that ends in an upright guide -5-. The upper guide -3- is shaped like an "inverted L" and has a substantially vertical lower section and a substantially horizontal upper section. Likewise, the upper end of the vertical section is attached to the left end of the horizontal section, presenting the aforementioned "inverted L" geometry. The upper guide -3- has a tubular profile with a square section and rigid material. The dimensions of the upper guide -3- are such that they allow the vertical section of the upper guide -3- to be inserted into the lower guide -2-. The upper face -31- of said horizontal section has a hole (not shown) adapted to receive said threaded bar -4-. The upper right end of the upper guide -3-, that is, the right end of the horizontal section, is joined by welding to the upright guide -5-. The upright guide -5- has a substantially vertical position and a tubular profile with a square section where the guardrail upright is inserted at its upper end. In particular, the lower end of the upright of the guard body is inserted through the upper part of the upright guide -5- up to the lower face thereof. The lower part of the outer face -52- of the guide -5- upright furthest from the belt beam has a tooth -51- that serves for the correct positioning of the clamp -1- with respect to the belt beam -6- and the board -7- in a second position of the jaw -1-, as will be described later in the explanation corresponding to the second position of the jaw -1-.
    [0115] The base of the safety jaw -1- has a substantially vertical lower guide -2- and two arms -22- and -22'- that extend horizontally from an intermediate height of said lower guide -2-. The two projecting arms -22- and -22'- are located at an intermediate height of the lower guide -2- substantially perpendicular to it. The upper faces -23- and -23'- of the two arms -22- and -22'- present a pivot -223- and -223'-or projection in each of the mentioned arms -22- and -22 ' -. Thus, said protruding arms -22-and -22'- serve as support in the formwork on which the clamp -1- is fixed, to achieve transverse stability thereof after its fixing. The dimensions of the section of the lower guide -2- are greater than the dimensions of the section of the upper guide -3-, allowing the vertical section of the upper guide -3- to be inserted into the lower guide -2-and furthermore, said vertical section of the lower guide -2- and the upper guide -3- are substantially coaxial. The upper guide -3- has the ability to slide within the mentioned lower guide -2-, in such a way that the safety jaw -1- allows a telescopic lengthening by means of a threading / unscrewing of the wing nut -41- on the bar -4- threaded.
    [0116] The threaded bar -4- is arranged in a substantially vertical position and partially located inside the vertical section of the upper guide -3-. It has a lower end that contacts the lower face -21- of the lower guide -2- and an upper end that projects from the upper guide -3-. The bar only contacts the face -21 -. It is joined in solidarity with the face -21 - by means of welding in other means, which allows it to work properly under traction. The downward movement of the wing nut -41- is given by the threading thereof, which causes the movement of the upper guide -3- substantially vertical inside the lower guide -2-. The wing -41- transfers a force that is substantially perpendicular to the upper face -62- of the strap beam -6- in the form of a clamping pressure. Additionally, the jaw -1- has a nut -42- with wing nut -41- to ensure its correct operation. Thus, the wing nut -41- produces its downward movement by fixing the clamp -1- with respect to the formwork in which it is desired to couple and allows its movement upwards to release the clamp -1-.
    [0118] The upper guide -3- together with its upright guide -5-, the lower guide -2- and the two arms -22- and -22'- have a square section tubular profile. The upright guide -5- allows the placement of uprights up to forty-one millimeters in diameter.
    [0120] Figure 7 shows the safety clamp -1- in the first position. It is observed that the lower face -34- of the horizontal section of the upper guide -3- is in contact with the upper face -62- of the strap beam -6- exerting a clamping pressure. The pivots -223- and -223'- of the arms -22- and -22'- are inserted in the first recess -651- of the strap beam -6-. Likewise, the maximum distance between the lower face of the upright guide -5- and the lower face -34- of the horizontal section of the upper guide -3- is such that it allows pressing the strap beam -6-superiorly on its upper face -62- and lower by its lower face -65- without there being interference with any part of the aforementioned strap beam -6-. The distance between the upper face -62- of the belt beam -6- and the face -63- of the belt beam -6- where the deck -7- rests must be greater than the distance between the lower face -34- of the horizontal section of the upper guide -3- and the lower face of the upright guide -5-. Furthermore, the horizontal section of the upper guide -3- has a length such that it allows a central projection of the strap beam -6- to be located between the upright guide -5- and the vertical section of the upper guide when the wall -64 ' - side of the belt beam -6- is in contact with the lower guide -2-.
    [0122] Thus, it can be seen in Figure 7 corresponding to a first position of the safety clamp -1-, that the clamping pressure exerted on the strap beam -6- is carried out by means of the lower face of the horizontal section -31- of the upper guide -2- and the face upper arms -22- and -22'- protruding, in such a way that the outer face of the lower guide -3-closest to the belt beam -6- and the two pivots -223- and -223'- that inserted in the first recess -651- of the strap beam -6- they prevent the clamp -1- from a rotational movement with respect to the strap beam -6-. As can be seen in figure 7, the first position of the safety jaw -1- is not completely useful to stabilize the strap beam against overturning since it does not contact the strap holder.
    [0124] Figure 7 shows the guide -5- upright acting as a physical stop.
    [0125] direction perpendicular to the aforementioned figure, that is, in the longitudinal direction of the belt beam -6-.
    [0127] Figures 8 to 11 show the safety jaw -1- in the second position. In the aforementioned figures it is observed that the lower face of the upright guide -5- is in contact with the upper face -62- of the strap beam -6- exerting a clamping pressure. The position of the upright guide -5- can be controlled through the threading / unscrewing of the wing nut -41- which causes the vertical movement of the upper guide -3- that is attached to the mentioned upright guide -5-. The strap beam -6- rests on the two arms -22- and -22'-through the lower face -65- of said strap beam -6-. The pins -223- and -223'- are inserted in the second recess -651'- of the strap beam -6-. The lower part of the guide -5-upright has a tooth -51- that allows fixing the position of the safety clamp -1- with respect to the strap beam -6- while wedging the board -7-. Thus, the tooth -51- allows the anchoring of the safety clamp -1- perpendicularly to the strap beam -6-. The strap beam -6- has a transverse position with respect to the clamp -1-, that is to say, the longitudinal axis of said strap beam -6- is substantially perpendicular to the vertical section and to the horizontal section of the upper guide -3-. Likewise, the safety clamp -1- is fixed to the strap beam -6- at three key points: the tooth -51- that fixes the upper part of the strap beam -6-, the pivots -223- and -223 ' - which are inserted into the second recess -651'- of the strap beam -6- and a lower adapter -9- of the strap holder -8- that embraces the strap beam, leaving the clamp -1- centered with respect to it.
    [0129] Figures 8 to 11 correspond to a second position of the clamp -1-, which show how the longitudinal axis of the upright guide -5- is substantially equidistant from the side walls -64- and -64'- of the belt beam -6-. It is important to mention that the load of the guardrail upright is transferred directly to the guide -5- upright, and this directly to the upper face -62- of the strap beam -6- without using any bar in a horizontal or diagonal position. which would cause an additional bending moment. So Therefore, the fact that the longitudinal axis of the upright guide -5- is substantially equidistant from the side walls -64- and -64'- of the belt beam -6- avoids the creation of an unnecessary and counterproductive bending moment for the stability and clamping of the jaw -1-.
    [0131] Likewise, it can be seen that in Figures 8 to 11, the clamping pressure exerted on the strap beam -6- is carried out by the lower face of the upright guide -5- and the upper face of the arms -22- and - 22'-, in such a way that the two projections of the adapter -9- and the two pivots -223- and -223'- that are inserted in the second recess -651'- of the strap beam -6- prevent the clamp -1- of a rotation movement with respect to the belt beam -6-.
    [0133] The two pivots -223- and -223'- found on the upper faces of the arms -22-and -22'- are inserted in the first recess -651- of the strap beam -6- in a first position according to Figure 7, while in a second position, the same pins -223- and -223'- are inserted into the second recess -651'- of the strap beam -6- according to Figures 8 to 11.
    [0135] Figure 12 shows the adapter -9- with a U-shaped profile, allowing the reception of a strap beam -6- through the central part of said adapter -9-. The adapter is joined in a solid way to the strap carrier beam -8 -. Said strap beam -6- is arranged substantially perpendicular to the profile of the adapter -9-. In particular, the adapter -9- has a projection at each end, separated by a distance substantially equal to the width of the strap beam -6-, in such a way that the lower face -65- of the strap -6 - it rests on the central part of the adapter -9- and on the upper faces -23- and -23'- of the arms -22- and -22'- (shown in figures 10 and 11). Therefore, the central part of the adapter -9- and the upper faces -23- and -23'- are at the same height. Said projections of the adapter -9- protrude between the two arms -22- and -22'- of the jaw -1-. Advantageously, the adapter -9- is integrally attached to the strap holder -8- and / or forms part of it and consequently the jaw -1- acquires greater stability due to the aforementioned projections that act as physical stops. Thus, the adapter -9- has the objective of increasing the stability of said jaw -1 - in the second position. Furthermore, the adapter -9- is placed on top of the aforementioned strap holder -8-. Additionally, the longitudinal axis of the belt holder -8- is arranged perpendicular to the longitudinal axis of the upright guide -5- and to the longitudinal axis of the belt beam -6-, that is, the longitudinal axis of the belt holder -8- is parallel to the stretch horizontal of the upper guide -3-.
    [0137] Figure 13 illustrates in a didactic way the "anti-tip" function of the clamp shown in the previous figures. The figure shows how the lower terminal -21- incorporated in the clamp contacts the front terminal -82- of the strap holder -8- to avoid the possible overturning of the strap beam. Therefore, the lower terminal -21- and the front terminal -82- preferably have conjugate forms. The interaction between both terminals -21-, -82- can also be observed in figure 11. By fitting together both terminals -21-, -82- movements and / or twists of the strap support beam -8- are avoided and, therefore Therefore, its adapter -9-, which complements the action of the clamp on the strap beam -6- through the guide -5-upright, which prevents the overturning indicated in figure 2 in a much more effective than solely with the action of the jaw upright guide -5-, since its vertical action -5- may be insufficient if the strap-bearing beam -8- moves or rotates. Said movements or turns are prevented by the action of said terminals -21-, -82 on the clamp and the strap-carrying beam.
    [0139] Although the invention has been described with respect to examples of preferred embodiments, these should not be considered as limiting of the invention, which will be defined by the broader interpretation of the following claims.
    权利要求:
    Claims (17)
    [1]
    1. Safety clamp for formwork structure type of formwork structure comprising at least one strap beam supported for at least one strap-bearing beam arranged perpendicular to the strap beam, the clamp comprising an upper body and a lower body with capacity of movement with respect to each other, characterized in that the lower body comprises a terminal for receiving the belt-carrying beam with a recess for receiving a conjugate projection of the belt-carrying beam.
    [2]
    2. Clamp, according to claim 1, characterized in that said terminal is a plate.
    [3]
    3. Jaw, according to claim 1 or 2, characterized in that the recess has a triangular or triangular prismatic shape.
    [4]
    4. Clamp, according to any of the preceding claims, characterized in that it is a clamp for holding a guard post and in that the upper body comprises:
    a) an upper guide comprising a vertical section and a horizontal section;
    b) an upright guide for receiving the guard post, said guide being attached to the horizontal section of the upper guide, in which the longitudinal axis of said upright guide is parallel to the longitudinal axis of the vertical section;
    and why the lower body comprises:
    c) a lower guide substantially coaxial to the vertical section of the upper guide, in which the lower guide has a tubular profile with an inner wall size greater than an outer profile of the vertical section of the upper guide, in such a way that said guide The upper one has the ability to slide inside said lower guide, and thus the jaw allows a telescopic elongation between the upper guide and the lower guide; d) at least one projecting arm of the lower guide intended to support a strap beam on its upper face, in which said projecting arm is parallel to the horizontal section of the upper guide and comprises a pivot on its upper face intended to be inserted into a recess of the strap beam on its underside to ensure the correct positioning of the clamp with respect to the strap beam;
    and why the gag includes:
    e) a threaded bar substantially coaxial to the vertical section and partially located inside the vertical section of the upper guide that has a lower end that remains integrally connected with the lower face of the lower guide and an upper end that projects from the upper guide , in such a way that the threading / unscrewing of a wing nut starts at the upper end and produces a rectilinear movement in the longitudinal direction of the threaded bar, allowing the jaw to adjust to the height of the belt beam.
    [5]
    5. Jaw according to claim 4, in which an upper end of the vertical section is directly connected to one end of the horizontal section.
    [6]
    Clamp, according to claim 4 or 5, in which the upright guide is directly connected to the end of the horizontal section of the upper guide that is not connected to the vertical section.
    [7]
    Clamp according to any of claims 4 to 6, in which the horizontal section of the upper guide has a length such that it allows a central projection of the strap beam to be located between the upright guide and the vertical section of the upper guide when a side wall of the strap beam is in contact with the lower guide.
    [8]
    Clamp according to any one of claims 4 to 7, in which the lower face of the upright guide is located in a lower position than the lower face of the horizontal section.
    [9]
    9. Jaw, according to any of claims 4 to 8, in which the jaw has two projecting arms at an intermediate height of the lower guide that are substantially perpendicular to it.
    [10]
    10. Jaw according to any one of claims 4 to 9, in which the upright guide, the upper guide, the lower guide and the arm have a square section tubular profile.
    [11]
    11. Formwork system characterized by comprising at least:
    a) a jaw according to claims 1 to 10;
    b) a strap beam;
    c) a strap beam that crosses and supports the strap beam;
    d) a formwork board that rests on said strap beam;
    wherein said clamp exerts a fixing pressure on the strap beam,
    and wherein said strap-bearing beam has at its end a projection with a shape conjugated with the recess of the receiving terminal of the strap-bearing beam.
    [12]
    System according to claim 11, in which said conjugate shaped projection has a prismatic triangular shape.
    [13]
    Formwork system, according to claim 11 or 12, characterized in that the strap beam comprises an adapter that is located between the strap beam and the strap beam, in which said adapter comprises a recess for receiving the strap beam.
    [14]
    Formwork system according to claim 13, in which the adapter comprises a U-shaped section that has a projection at each of the two ends of said adapter, separated by a distance equal to the width of the strap beam. , in such a way that the underside of the strap beam rests on the central area of the adapter.
    [15]
    Formwork system according to claims 13 or 14, in which the protrusions of the adapter protrude with respect to the two protruding arms of the jaw.
    [16]
    System according to any of the preceding claims, in which the jaw is a jaw according to any of claims 4 to 10 and the longitudinal axis of the upright guide is substantially equidistant from the side walls of the belt beam in a second position of the jaw.
    [17]
    17. System according to any of claims 11 to 16, wherein the jaw is a jaw according to any of claims 4 to 10 and the upright guide has a tooth on the lower face of the upright guide that allows the anchoring of strap beam at the same time wedging a formwork board.
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    同族专利:
    公开号 | 公开日
    CO2020013628A2|2020-11-20|
    WO2019197687A1|2019-10-17|
    ES2794674B2|2022-01-25|
    ES2794674R2|2021-04-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2154869A5|1971-09-28|1973-05-18|Mag|
    ES1021222Y|1992-05-07|1993-04-01|Iraolagoitia Ugalde Sixto|STRUCTURE FOR THE CONFORMATION OF RECOVERABLE FORMWORKS.|
    DE19813857C1|1998-03-27|2000-01-05|Peri Gmbh|Support bracket for shuttering for concrete overhang profiles|
    ES2270686B1|2005-01-17|2008-01-01|Sistemas Tecnicos De Encofrados, S.A.|CLAMP FOR PROTECTION RAILINGS IN WORKS.|
    ES2294884B1|2005-04-15|2009-02-16|Maquiobras, S.A.|PROTECTIVE SYSTEM FOR FLAT WINDOWS.|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    PCT/ES2018/070301|WO2019197687A1|2018-04-09|2018-04-09|Safety clamp for formwork structure|
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