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EP3719235A1 - Porte-conducteur - Google Patents

Porte-conducteur Download PDF

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Publication number
EP3719235A1
EP3719235A1 EP20158445.5A EP20158445A EP3719235A1 EP 3719235 A1 EP3719235 A1 EP 3719235A1 EP 20158445 A EP20158445 A EP 20158445A EP 3719235 A1 EP3719235 A1 EP 3719235A1
Authority
EP
European Patent Office
Prior art keywords
fastening
ladder
spacer
base part
holder
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP20158445.5A
Other languages
German (de)
English (en)
Inventor
Andre Gaiser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peri GmbH
Original Assignee
Peri GmbH
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 Peri GmbH filed Critical Peri GmbH
Publication of EP3719235A1 publication Critical patent/EP3719235A1/fr
Withdrawn legal-status Critical Current

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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
    • E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/12—Clamps or clips for crossing members
    • E04G7/14—Clamps or clips for crossing members for clamping the members independently
    • E04G7/16—Clamps or clips for crossing members for clamping the members independently of which the clamping parts for the different members are rotatable with respect to one another
    • 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
    • E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/12—Clamps or clips for crossing members
    • E04G7/18—Clamps or clips for crossing members for clamping the members against one another or against a separate cushioning piece between them
    • 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
    • E04G7/26—Connections between parts of the scaffold with separate coupling elements for use with specially-shaped scaffold members
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/18—Devices for preventing persons from falling
    • E06C7/188—Accessories for temporary stabilising a ladder, e.g. temporary attaching devices
    • 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
    • E04G5/10—Steps or ladders specially adapted for scaffolds

Definitions

  • the invention relates to a fastening element for fastening a ladder to an object, for example to a scaffolding, comprising a fastening which is intended to be detachably fastened to an object, a ladder holder which is intended to grip around an element of a ladder or to be detachable to hold, a spacer and at least one joint, wherein the joint has at least one rotational degree of freedom, whereby the ladder holder is pivotable relative to the attachment.
  • the invention further relates to a system for safely reaching people from scaffolding elements arranged above the floor with at least one fastening element and the use of a fastening element for fastening a ladder to an object.
  • ladders When erecting buildings, ladders are required to enable people to climb and descend to elevated positions where they can work on the building. Scaffolding is often used from which this work is carried out. Ladders are required to reach the upper scaffolding levels. These ladders must be firmly connected to the scaffolding or to elements that belong directly to the building to be erected. Such a fixed connection is necessary to prevent the ladders from falling over or slipping accidentally when people use these ladders. Fastening elements are therefore required to secure the ladders to the scaffolding or building and thus prevent accidents at work. In some applications the ladders run purely vertically, also known as fixed ladders, in other applications the ladders are at an angle to the vertical, which facilitates ascent and descent. Such inclined ladders are also known as leaning ladders.
  • a very simple solution for connecting ladders to a scaffolding are simple hooks that are attached directly to the ladders and that are hooked onto the scaffolding or building using appropriate elements.
  • this simple hook solution is easily detached from the object to which the ladder is to be attached and therefore offers little work safety.
  • JP2011026770A discloses a fastener with which a ladder can be angularly attached to a platform. This solution is complex to assemble and is therefore not suitable for use on a construction site where the ladder has to be quickly assembled and disassembled. In addition, this fastener hinders the person using the ladder at the point of attachment.
  • the fastening has at least two elements which can be changed in their position relative to one another. More detailed configurations for fastening can be found in the subclaims and in the description below.
  • the conductor holder has at least two elements which can be changed in their position relative to one another. An element of a ladder is clamped between these two elements.
  • the spacer is designed in the form of a rod.
  • a rod-shaped spacer has a length that is significantly larger than its width and depth dimensions. This form is particularly advantageous because the Length dimension the required distance from the ladder to the object is established and the spacer has little volume and therefore little weight due to the smaller width and depth dimensions.
  • the fastening element is particularly light and therefore easy to attach.
  • connection points between the fastening, spacer and conductor holder, except for the connection point formed by the joint are made rigid.
  • the conductor is guided in one point or movable around an axis relative to the object. This is achieved in that there is only one movable connection point between the attachment and the conductor holder. It is avoided that uncontrolled movements occur simultaneously at several points between the attachment and the ladder holder. Such a targeted guidance of the movement of the ladder relative to the object serves for occupational safety.
  • the proposal advantageously provides that the joint is a ball joint.
  • the joint has more than one rotational degree of freedom.
  • This embodiment is particularly advantageous in order to prevent tension that occurs when a ladder is fastened to a rigid object with two fastening elements.
  • a ladder is usually attached to an object with a fastening element on each of its longitudinal struts.
  • the fastening has a fastening receptacle and a fastening bolt, the fastening receptacle being provided to enclose an object on at least three sides and the fastening bolt being insertable into the fastening receptacle and the fastening bolt being provided in the in the fastening receptacle introduced state to set the fastening (2).
  • the attachment is particularly easy and quick to attach to an object.
  • a fastening receptacle is provided which is pushed over the object and then encloses it on at least three sides.
  • the object is then completely enclosed by a fastening bar which can be inserted into the fastening receptacle and which surrounds the object in the inserted state on the fourth side.
  • a fastening bar which can be inserted into the fastening receptacle and which surrounds the object in the inserted state on the fourth side.
  • the fastening receptacle has a base plate, one side of which rests on the object in the mounted state on the object and the spacer is fastened to the opposite side, both sides of the base plate being designed to be flat.
  • the fastening receptacle has a base plate with two flat surfaces parallel to one another. One of these surfaces rests on the object, the spacer is attached or articulated to the other, opposite surface.
  • the extension axis of the spacer runs at right angles to the sides of the base plate or runs inclined to a normal to the sides of the base plate by an angle of up to 40 °.
  • the spacer is rigidly attached to the base plate.
  • the spacer points away from this base plate. This ensures that the spacer actually creates the desired distance between the object and the ladder, which is necessary for unobstructed access to the ladder.
  • An arrangement at a slightly inclined angle between the axis of extension and the surface of the base plate is also beneficial for producing the desired spacing.
  • the fastening receptacle has a substantially U-shaped cross section and the inner sides of the two legs of the U and the area connecting the two legs of the U are intended to rest on the object and to enclose it on three sides.
  • the mounting bracket consists of three elements that are connected to one another in the manner of a U.
  • a central area which is formed by a plate-shaped element, is adjoined on two sides by two further plate-shaped elements, each arranged at right angles to the central area.
  • This U-shape is particularly suitable for enclosing a cuboid element on three sides.
  • the framework elements to which the fastening element is attached are usually designed in such a cuboid shape.
  • the fastening receptacle has at least two slots into which the fastening bar can be inserted for fixing the object in the fastening receptacle. Since the embodiment described above only encloses the object on three sides, the fourth side of the object must also be enclosed in order to fix the fastening element, in particular the fastening. This fourth side is enclosed by the fastening bar inserted into the fastening receptacle. For secure storage and holding of the fastening bar in the fastening receptacle, it has at least two slots into which the fastening bar is inserted for fixing the fastening to the object. The two slots are dimensioned somewhat larger than the cross section of the fastening bar.
  • the fastening bar is designed in the shape of a wedge.
  • a wedge-shaped fastening bar is particularly favorable. Due to the wedge shape, the fastening bar is clamped into the slots when it is inserted. By applying a force in the longitudinal direction to the fastening bar, it is fixed in one or both slots with a force fit. To release the fastening bar, a light blow of the hammer on its underside is sufficient to release the frictional fixing again.
  • This embodiment can be attached to the object particularly quickly and easily, in particular because no screw connections have to be made. The fastening holder is simply pushed over the object, the fastening bar is inserted into the slots and fixed by a slight normal force. These steps can be carried out quickly and easily.
  • the base plate forms the area which connects the two legs of the U-shaped fastening receptacle and the slots for receiving the fastening bar are arranged in the limbs of the U of the fastening receptacle.
  • the fastening bar is arranged in the fastening in such a way that it penetrates the two legs of the fastening receptacle through the slots provided therein.
  • one of the two legs is pushed over the object, oriented vertically upwards.
  • other arrangements are also conceivable, for example an embodiment in which the central area of the U rests on the object, oriented vertically upwards, when used. In this case then lie the two legs of the U to the side surfaces of the object.
  • the fastening wedge can be aligned both vertically and horizontally in the application.
  • the ladder holder has a base part and a holding element, the holding element being releasably connectable to the base part and the holding element in operative connection with the base part being provided to grip around an element of a ladder.
  • the two elements of the conductor holder which are movable in their position relative to one another are formed by a base part and a holding element. These two elements are intended to hold one element of the ladder.
  • the base part of the ladder holder has at least one at least partially planar bearing surface which, in the neutral position of the joint, runs essentially perpendicular to the axis of extension of the spacer.
  • the holding element has a flat surface on which a surface of an element of the conductor is placed. This flat contact surface enables an optimal transmission of force between the conductor and the fastening element in the case in which the conductor element that is held also has a flat surface. This is usually the case when the conductor element has a rectangular cross section.
  • a curved recess is provided in a partial area of the support surface.
  • a curved recess is provided adjacent to or as a part of the previously described flat support surface. This curved recess is used to grip and hold a conductor element which does not have a flat support surface. This is the case when the conductor element has a round or oval cross-section. In this case, the conductor element rests exclusively in the curved recess on the base part.
  • This embodiment is particularly advantageous because it enables both conductor elements with a rectangular cross section and conductor elements with a round or oval cross section to be securely fixed. A single fastening element can thus be used safely for different ladders.
  • each flat side surfaces are arranged at right angles to the support surface.
  • the flat side surfaces described serve in combination with the flat support surface described above to laterally fix conductor elements with a rectangular cross section.
  • planar bevels are arranged adjacent to the side surfaces on the side facing away from the support surface, which bevels form an angle of less than 90 ° to the side surfaces.
  • These chamfers in turn adjoin the previously described side surfaces and are arranged at an angle to the rear from their surface.
  • These chamfers are intended to hold conductor elements with a round or oval cross-section, either alone or in combination with the curved recess described above.
  • These chamfers also improve the property of the conductor holder or the fastening element of securely holding conductors of different types, in particular with different cross-sections of the conductor elements.
  • each curved receiving areas are arranged adjacent to the side surfaces on the side facing away from the support surface.
  • This alternative embodiment has, instead of the flat bevels described above, curved receiving areas adjoining the side surfaces. These curved receiving areas are also provided to hold conductor elements with a round or oval cross-section.
  • the holding element has a bearing surface, at least two side surfaces and / or at least two chamfers, these surfaces being designed analogously to the corresponding surfaces on the base part.
  • a mirrored design is particularly favorable, in which the type and dimensions of the surfaces on the base element correspond to the surfaces on the holding element. This enables the conductor element to be accommodated symmetrically in the conductor holder.
  • the support surface and the other surfaces, which serve to receive and hold a conductor element, are thus designed analogously on the holding element arranged opposite the base part.
  • the at least one screw connection is provided which connects the holding element to the base element and in this connection the contact surface of the base part is arranged opposite the contact surface of the holding element.
  • the holding elements and the base element are aligned with one another and pulled together, but advantageously by two screw connections.
  • the conductors are fixed by tightening the screw connection (s).
  • the advantage of screw connections is that screws of different lengths can be used and the conductor holder can thus be easily adapted to different dimensions of conductor elements.
  • a disadvantage of screw connections is that the tightening of these connections is more complex than, for example, in an embodiment described below with a differently designed locking mechanism.
  • the base part and the holding element are designed in the form of a bow and have a central area in which the bearing surfaces are arranged, connecting legs being arranged adjacent to this central area on both sides.
  • the base part and the holding element are bow-shaped.
  • a central area in which the bearing surfaces are arranged on the inside are adjoined by connecting legs on both sides.
  • These connecting legs also have a flat surface which is used to connect to the respective opposite element.
  • These surfaces of the connecting legs run parallel to the bearing surfaces, but are arranged offset from them due to the bow shape.
  • the bearing surfaces are set back in relation to the surfaces of the connecting legs which are used for the connection.
  • the proposal advantageously provides that the base part and the holding element are movably connected to one another at one of their connecting legs by means of a swivel joint and a locking mechanism is arranged on the opposite connecting legs, by means of which the two connecting legs can be releasably and firmly locked to one another.
  • This embodiment represents an alternative to that before described embodiment with screw connections between the base part and the holding element.
  • the base part and the holding element are movably connected on one side via a swivel joint, which enables the holding element to be opened and closed.
  • a locking mechanism is arranged on the side opposite the swivel joint, which is used to fix the holding element in relation to the base part when the conductor is received.
  • the locking mechanism comprises a rod-shaped pivot pin which is firmly connected to a pivot axis arranged at right angles to the pivot pin, the pivot axis being rotatably received and supported in a recess of the connecting leg of the base part and the pivot pin at least one pin slot and the connecting leg of the holding part has a locking recess running in the longitudinal direction of the holding part, which is open on the side of the connecting leg facing away from the support surface and the pivot pin can be pivoted into the locking recess and the locking mechanism further comprises a wedge-shaped bolt that can be inserted into the pin slot is.
  • This embodiment represents a particularly easy-to-use solution for receiving and fixing a conductor element in the conductor holder.
  • the last step in fixing the holding element to the base part is successful by introducing a wedge-shaped bolt.
  • This latch is simply inserted into the mortise of a pivot pin.
  • This fixing of the holding element to the base part can be carried out particularly quickly and easily. No tools are required for this and no screw connections have to be tightened, which simplifies and speeds up the fixing of the conductors.
  • the locking mechanism can assume an open state and a locked state, wherein in the open state the bolt is removed from the pin slot and the pivot pin is pivoted about the pivot axis on the side of the base part facing away from the pivot joint, so that the The pivot pin is not located in the locking recess, so that the retaining element can be pivoted about the pivot joint away from the base part and in the locked state the connecting legs of the base part and the retaining element rest on one another, the pivot pin is pivoted about the pivot axis into the locking recess and the bolt is inserted into the pin slot so that the bolt presses against the connecting leg and so the holding element to the base part locked.
  • the locking mechanism can assume an open and a locked state. The transition from one state to the other is possible with just a few simple steps. As a result, the conductor holder can be quickly and easily connected to a conductor element and also separated from it again. This enables the ladder to be quickly fixed to an object.
  • the fastening has a fastening base part and a fastening holding element, the fastening holding element being firmly connectable to the fastening base part and the fastening holding element in operative connection with the fastening base part being provided to grip around an object and the fastening at least one, advantageously has two screw connections which connect the fastening retainer element to the fastening base element.
  • the two elements of the fastening which are variable in their position relative to one another, are formed by a fastening base part and a fastening holding element.
  • the fastening is carried out similarly or analogously to the first described embodiment of the conductor holder.
  • the object is held between the fastening base part and a fastening holding element. These two elements are connected to one another by two screw connections.
  • the fastening base part and the fastening holding element are shaped in such a way that they together form a receiving space for the object.
  • support surfaces, side surfaces, bevels and curved recesses are provided analogously to the embodiment described above for the conductor holder.
  • the attachment base is first placed on the object and then the attachment holder element is connected to the attachment base via the screw connections in such a way that the attachment clamps the object and thus fixes it to it.
  • This embodiment offers the advantage that it can be adapted very easily to different dimensions of objects using different screw lengths.
  • connection by screw connections is more time-consuming than the embodiment described above with a fastening receptacle and a fastening bolt.
  • different embodiments of fastening can be freely combined with different embodiments of conductor holders for a fastening element. All such combinations are considered to be disclosed.
  • a system according to the invention consists of the elements fastening element, ladder and scaffolding. These elements are interconnected so that the ladder is securely attached to the scaffolding. It is particularly advantageous that the ladder can be moved to a limited extent with respect to the object which belongs to the framework and to which the ladder is attached by the fastening element, due to the inherently movable fastening element. This limited mobility makes it possible to transfer the ladder from a purely vertical orientation to an inclined orientation without the system according to the invention having to be dismantled.
  • a system according to the invention is thus flexible, easy to assemble and ensures a high level of work safety.
  • the object of the invention is finally achieved by the use of a fastening element according to one of the embodiments described above for fastening a ladder to an object, the object being part of a framework.
  • the use according to the invention enables a work ladder to be securely and flexibly attached to an object, for example a scaffolding element.
  • the same advantages apply to the use as previously described for the fastener and the system.
  • Fig. 1 shows a perspective view of a first embodiment of a fastening element 1.
  • the fastening element 1 comprises two assemblies: the fastening 2 shown at the back, which is intended to be connected to an object to which a ladder is to be fastened, and a ladder holder 3 shown at the front, which is intended to be permanently connected to a ladder.
  • a fastening element 1 can also be used to connect other elements, such as pipelines or the like, to an object instead of a ladder.
  • the ladder holder 3 is movably connected to the fastening 2. This makes it possible, when the fastening element 1 is installed, to pivot the conductor holder relative to the fastening 2 within certain limits. This allows the angle of the ladder, which is fastened in the ladder holder 3, to be changed with respect to the object.
  • the fastening 2 has a rigidly designed fastening receptacle 21 which is guided over the object during assembly.
  • the fastening receptacle 21 viewed from the side, is designed essentially U-shaped and has a centrally arranged base plate 24, on both sides of which legs arranged at right angles are attached.
  • the fastening receptacle 21 encloses the object on three sides. In this case, the sides or surfaces of the base plate 24 and the two adjacent legs facing in the direction of the inside of the fastening receptacle 21 lie against the object or are at a very small distance from the object.
  • the fastening bar 22 is provided for secure fastening of the fastening 2.
  • the fastening bar 22 is wedge-shaped in the embodiment shown.
  • the fastening bar 22 is inserted into two slots 211 in the fastening receptacle 21 and interacts with them.
  • the fastening receptacle 21 is first pushed over the object.
  • the fastening bar 22 is then introduced into the two slots 211.
  • the fastening bolt 22 locks the object in the fastening 2.
  • the fastening bolt 22 is usually fastened with hammer blows on its upper end.
  • the fastening bolt 22 already falls into the slots 211 by itself due to the force of gravity acting on it and thereby creates a first fixation of the fastening 2.
  • the fastening element 1 can thus be fixed to the object with little effort and very easily.
  • the fastening bar 22 introduced into the fastening receptacle 21 then encompasses the object on its fourth side, which is not enclosed by the fastening receptacle 21.
  • the attachment 2 is simple and robust and can be attached to the object quickly and easily. In contrast to the prior art, no screw connections need to be attached when mounting the fastening 2, which significantly speeds up the assembly.
  • an upwardly selected catching area 212 is formed adjacent to the slot 211. This catching area 212 represents a bulge of the upper leg upward.
  • the slot 211 penetrates the catching area 212.
  • a securing bolt 221 is attached at the bottom of the fastening bar 22. This securing bolt 221 projects beyond the fastening bolt 22 in the thickness direction.
  • the one in the in Fig. 1 A recess 213, which is provided to enable the protruding securing bolt 221 to be pushed through, is arranged at the slot 211 introduced there, the leg of the fastening receptacle 21 shown below. Starting from the state shown, the fastening bar 22 can be raised upwards, whereby the Fastening bar 22 leaves the lower slot 211. In the process, the securing bolt 221 passes the recess 213. If the fastening bolt 22 is pulled out further upwards, the securing bolt 221 finally strikes the catching area 212.
  • the fastening bar 22 can then no longer be moved upwards and is thus connected to the fastening receptacle 21.
  • This securing is used to ensure that the fastening bar 22 cannot be lost and can fall out during assembly, for example.
  • the securing bolt 221 is then in the catching area, whereby the rearward-facing opening of the fastening receptacle 21 is freely accessible and in particular neither the fastening bolt 22 nor the securing bolt 221 protrude into the opening.
  • the fastening receptacle can be pushed over the object without obstruction.
  • the fastening bolt 22 is then moved downwards, then penetrates the slot 211 in the lower leg and then secures the fastening receptacle 21 on the object.
  • the fastening 2 can also be constructed in two parts, the two parts of the fastening 2 being connected to one another via screw connections.
  • the fastening 2 can thus also be designed analogously to the ladder holder 3 described below.
  • the provision of screw connections on the fastening 2 has the advantage that screw connections enable objects of different sizes to be accommodated.
  • An embodiment of a fastening 2 analogous to the ladder holder 3 is selected when the objects to be encompassed have different dimensions or the fastening 2 is to be suitable for holding different objects.
  • the fastening 2 is firmly connected to a spacer 8 which, in the embodiment shown, is arranged on the side of the base plate 24 facing away from the fastening bar 22.
  • the spacer 8 can, however, also be arranged on one of the two legs of the U-shaped fastening receptacle 21.
  • the spacer 8 is used to arrange the ladder holder 3 at a distance from the fastening 2. This distance is important so that the ladder fastened in the ladder holder 3 is at a distance from the object. As a result, a person who uses the ladder is prevented from walking on the ladder either by the fastening element 1 or by the object. This represents a significant advantage over the prior art, since all rungs of the ladder are unrestricted can be used.
  • the spacer 8 is designed as a rod.
  • a rod-shaped design is to be understood as meaning that the length dimension of the spacer 8 is significantly larger than its width and depth dimensions.
  • the spacer 8 is cylindrical. It is of course also possible for the spacer to have an angular cross section.
  • the spacer 8 has an axis of extension 81 which runs in the middle in the direction of the length dimension of the spacer 8. The axis of extension 81 runs between a first end of the spacer 8, which is firmly connected to the fastening receptacle 21, to a second, opposite end of the spacer 8, which is movably connected to the conductor holder 3.
  • the axis of extension 81 is an imaginary axis which is used to describe the mobility of the conductor holder 3 for fastening 2 and the alignment of the spacer 8 to the fastening receptacle 21 is to be defined.
  • the axis of extension 81 is inclined slightly upwards from the base plate 24.
  • the axis of extension 81 is thus inclined at an angle of approximately 25 ° with respect to a normal one on the base plate 24. It is also possible to arrange the axis of extension 81 directly at right angles to the surface of the base plate 24.
  • the spacer 8 ensures that in the assembled state of the fastening element 1 all rungs of the attached ladder can be walked on without hindrance, a slight upward inclination of the spacer 8, as shown, is particularly advantageous.
  • the ladder fastened in the ladder holder 3 can be fastened particularly well at an angle slightly inclined with respect to the vertical.
  • the spacer 24 is not connected to the central base plate 24 but to one of the two legs which are arranged on both sides of the base plate.
  • the spacer 8 can also be arranged at a corner between the central base plate 24 and one of the two legs adjoining it.
  • a joint 4 which in FIG Fig. 1 is covered by the ladder holder 3.
  • This joint 4 is for example in Fig. 2 better to recognize and in Fig. 8 shown in a sectional view.
  • the joint 4 ensures that the ladder holder 3 can move relative to the fastening 2 or relative to the spacer 8.
  • the ladder holder 3 is designed to be pivotable about the joint 4 for fastening 2.
  • the joint 4 can also be arranged between the spacer 8 and the fastening 2.
  • the spacer 8 is firmly connected to the conductor holder 3.
  • the joint 4 has at least a rotational degree of freedom about an axis which is perpendicular to the axis of extension 81 described above.
  • the axis about which the conductor holder 3 can be pivoted is usually on the one hand perpendicular to the axis of extension 81 and, on the other hand, runs horizontally in the assembled state of the fastening element 1.
  • a mobility about a horizontal axis of the joint 4 enables the above-described adaptation of the angle of the ladder to the vertical.
  • the joint 4 can also have further degrees of freedom about axes which are also perpendicular to the axis of extension 81.
  • the joint 4 has been found to be particularly favorable for the joint 4 to be designed as a ball joint which has several rotational degrees of freedom.
  • two fastening elements 1 are used per ladder, one on each longitudinal spar of the ladder.
  • the conductor holder 3 On the side of the joint 4 opposite the fastening 2, the conductor holder 3 is arranged, which comprises the base part 31 connected to the joint 4 and a holding element 32 that can be releasably connected to the base part 31.
  • the conductor to be fastened is fastened, in particular clamped, between base part 31 and holding element 32.
  • the base part 31 and the holding element 32 have several contact surfaces which rest on the ladder when the ladder is attached.
  • Centrally arranged in the base part 31 is an at least partially planar support surface 311.
  • Such a planar support surface 311 is particularly well suited to holding or tensioning a ladder stile with a rectangular cross-section, which also has planar outer surfaces.
  • the support surface 311 has a centrally arranged curved recess 312.
  • this curved recess touches 312 the ladder stile and holds it tight.
  • a support surface 321 with a corresponding recess 322 is also provided on the holding element 32 in the assembled state opposite the base part 31. This is especially good in the top view Fig. 3 to recognize.
  • both the base part 31 and the holding element 32 are bow-shaped.
  • the central part of the bracket is located in the area of the support surfaces 311 and 321.
  • connecting legs 315 and 325 Adjacent to this central part, connecting legs 315 and 325 are arranged on two opposite sides.
  • the connecting legs 315 and 325 of the embodiment in FIG Fig. 1 correspond to the in Fig. 4 illustrated embodiment.
  • These connecting legs 315 and 325 are arranged offset with respect to the bearing surfaces 311 and 321, respectively.
  • the connecting legs 315 and 325 respectively project in the direction of the bearing surfaces 311 and 321 into the interior of the conductor holder 3.
  • the connecting legs 315 and 325 are placed on top of one another and connected to one another. In the interior of the conductor holder 3 there is then a space for receiving the conductors, which space is delimited on opposite sides by the bearing surfaces 311 and 321, respectively.
  • the bearing surfaces 311 and 321, viewed the other way around, are thus set back relative to the connecting legs 315 and 325 in order to form a receiving space for the conductors.
  • the base part 31 and the holding element 32 are connected to one another by two screw connections 33. These screw connections 33 are guided through recesses in the connecting legs 315 and 325, respectively.
  • the screw connections 33 are tightened, as a result of which the holding element 32 is pulled towards the base part 31 and the conductors are thereby clamped or enclosed.
  • the connection of the holding element 32 with the base part 31 can also be made by other connection mechanisms, such as in FIGS Figures 4 to 6 is shown.
  • the fastening 2 can also be designed analogously to the ladder holder 3 and comprise two bow-shaped elements that are pulled together with two screw connections.
  • the embodiment with screw connections has the advantage both of the ladder holder 3 and of the fastening 2 that ladder stiles or objects with different dimensions can be picked up very easily.
  • simply longer Screw connections are provided.
  • a conductor holder 3 can thus be adapted to different embodiments of a conductor over the length of the screw connections.
  • Fig. 2 shows a side view of a first embodiment of a fastening element 1.
  • the fastening 2 which is firmly connected to the spacer 8 arranged in the center, is shown on the left.
  • the spacer 8 is movably connected to the ladder holder 3 arranged on the right via the joint 4.
  • the spacer 8 can also be firmly connected to the ladder holder 3 and the joint 4 can be arranged between the spacer 8 and the fastening 2.
  • the joint 4 is designed as a ball joint. A sectional view of such a ball joint is shown in FIG Fig. 8 shown and described.
  • the axis of extension 81 which runs from the first end of the spacer 8 firmly connected to the fastening 2, to its second end, on which the joint 4 is arranged, is shown in dashed lines.
  • the axis of extension 81 runs parallel to the length dimension 82 of the spacer 8. In the embodiment shown, this length dimension 82 is 60 mm. Of course, other dimensions for the length dimension 82 are also part of the invention.
  • the length dimension 82 is favorably in the range of 10-100 mm.
  • the joint 4 comprises at least one rotational degree of freedom about an axis which runs perpendicular to the axis of extension 82 and at the same time, in the embodiment shown, runs into the plane of the drawing.
  • Fig. 3 shows a plan view of a first embodiment of a fastening element 1.
  • Fig. 3 are the areas that come into contact with the ladder when it is fastened detect. The arrangement of these surfaces is described using the example of the base part 31.
  • the at least partially planar support surface 311 can be seen centrally, directly adjacent to the fastening of the joint 4.
  • Centrally curved recesses 312, which are used to accommodate round or oval conductor elements, are arranged in the support surface 311. Adjacent to this and arranged at right angles, planar side surfaces 313 are provided on two sides.
  • the surfaces of these chamfers 314 are inclined with respect to the surfaces of the side surfaces 313 away from the central support surface 311 and typically assume an angle of 45 ° to this.
  • the bevels 314 can also be inclined at a different angle, which is less than 90 °, with respect to the side surfaces 313.
  • the bevels 314, like the curved recess 312, have the task of accessing or receiving conductor elements with a round or oval cross section.
  • FIG. 4 shows a perspective view of a second embodiment of a fastening element 1.
  • This second embodiment of a fastening element 1 also comprises a fastening 2 and a conductor holder 3.
  • the fastening 2 here is identical to that in FIG Figs. 1 to 3 shown and described first embodiment executed. Thus, for the attachment 2 in Fig. 4 the same descriptions and explanations previously for the first embodiment were shown.
  • the connection of the holding element 32 and the base part 31 of the conductor holder 3 is different in the second embodiment from the first embodiment.
  • the holding element 32 is movably connected to the base part 31 by the swivel joint 7.
  • the swivel joint 7 is arranged in the connecting legs 315 and 325 facing to the rear to the right.
  • the connecting legs 315 and 325 are arranged adjacent to the central area of the bracket-shaped elements, the base part 31 and the holding element 32. Similarly designed connecting legs 315 and 325 are shown on the view in FIG Fig. 4 forward facing side of base part 31 and holding element 32 are arranged.
  • the holding element 32 can be pivoted about the swivel joint 7.
  • a locking mechanism 6 is attached to the connecting legs 315 and 325 which are arranged opposite the swivel joint 7.
  • This locking mechanism 6 comprises a pivot pin 61 which is firmly connected to a pivot axis 62 arranged at right angles thereto.
  • the pivot axis 62 is rotatably mounted in the connecting leg 315 of the base part 31.
  • the pivot pin 61 can be pivoted about the pivot axis 62.
  • a pin slot 611 is provided in the pivot pin 61 on its side facing away from the pivot axis 62.
  • This pin slot 611 represents a continuous recess in the pivot pin 61.
  • the locking mechanism 6 comprises a bolt 63, which here is wedge-shaped and can be introduced into the pin slot 611.
  • a locking recess 326 is provided in the holding element 32 on the side facing the locking mechanism 6. The width and the depth of this locking recess 326 is selected such that the pivot pin 61 can be introduced, in particular pivoted, into the locking recess 326.
  • the locking recess 326 is arranged in the connecting leg 325 facing forward.
  • the ladder in the ladder holder 3 To fasten the ladder in the ladder holder 3, it is first placed on the support surface 311 of the base part 31.
  • the holding element 32 is then pivoted around the swivel joint 7 around the ladder or the ladder element until the connecting leg 325 rests on the corresponding connecting leg 315 on the side opposite the swivel joint 7.
  • the pivot pin 61 is then pivoted about the pivot axis 62 into the locking recess 326.
  • the bolt 63 is finally inserted into the tenon slot 611, whereby the holding element 32 is firmly connected to the base part 31.
  • Holding areas 327 are arranged, which directly adjoin the locking recess 326.
  • the holding areas 327 protrude beyond the surface of the connecting leg 325 that faces forward in the illustration.
  • the holding areas 327 prevent the pivot pin 61 with the inserted bolt 63 from being inadvertently twisted about the pivot axis 62.
  • the bolt 63 rests against the holding areas 327.
  • pivoting pin 61 is no longer possible and the conductor element is securely clamped in conductor holder 3.
  • Fig. 5 shows a side view of a second embodiment of a fastening element 1.
  • the illustration in Fig. 5 essentially corresponds to the representation in Fig. 2 so that too Fig. 2 Also described for Fig. 5 applies.
  • the ladder holder is 3 in Fig. 5 accordingly after Fig. 4 executed.
  • the spacer 8 can alternatively also be firmly connected to the conductor holder 3 and the joint 4 can be arranged between the fastening 2 and the spacer 8. Details of the joint 4 are shown in the sectional view in FIG Fig. 8 to recognize.
  • Fig. 6 shows a plan view of a second embodiment of a fastening element 1.
  • Fig. 3 in contrast to the in Fig. 3
  • the embodiment shown in FIG Fig. 6 no chamfers 314 or 328.
  • each curved receiving areas 319 and 329 are arranged adjacent to the side surfaces 313 and 323. These curved receiving areas 319 and 329 serve to receive or clamp conductor elements, in particular ladder stiles, which are round or oval.
  • Fig. 7 shows a plan view of a second embodiment of a fastening element 1 with identification of the cutting plane for Fig. 8.
  • Fig. 7 . is a simplified representation of Fig. 6 .
  • a section plane AA is shown, which is necessary for the illustration in Fig. 8 is used.
  • Fig. 8 shows a sectional side view of a second embodiment of a fastening element 1. Details of the joint 4 can be seen in this sectional view.
  • the joint 4 is arranged between the spacer 8 and the conductor holder 3.
  • the spacer 8 here has a bore which extends along the extension axis 81.
  • a screw 41 which has a conical head, is screwed into this bore.
  • a recess 3110 is arranged in the base part 31 of the conductor holder 3 and is accessible through the base area 311, not shown.
  • the screw 41 of the joint 4 is screwed through the receiving surface 311 and the recess 3110 provided therein into the hole in the spacer 8.
  • the head of the screw 41 is larger than the opening of the recess 3110, which points in the direction of the spacer 8. As a result, the conductor holder 3 can no longer be separated from the spacer 8 when the screw 41 is screwed in. There is thus a form fit between the screw 41 and the conductor holder 3, which, however, allows the conductor holder 3 to move relative to the spacer 8.
  • the joint 4 is thus formed by the interaction between the screw 41 and the recess 3110. This interaction forms a ball joint which has several rotational degrees of freedom.
  • the head of the screw 41 can also be designed hemispherical instead of the illustrated conical shape. The mobility of the joint 4 can be adjusted by how far the screw 41 is turned into the hole in the spacer 8.
  • a screw lock for example a screw lock that acts like an adhesive
  • a joint 4 can alternatively also be arranged between the spacer 8 and the fastening 2.
  • a recess is provided in the fastening, from which a screw is turned into the hole in the spacer 8.
  • a joint 4, as shown, can then be provided between spacer 8 and ladder holder 3 or the connection between spacer 8 and ladder holder 3 can be rigid.
  • the joint 4 can also be formed by further and alternative elements.
  • there are standard parts that are used to connect between spacer 8 and Ladder holder 3 and / or attachment 2 can be installed. Such standard parts can be different ball joints or also hinges.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
EP20158445.5A 2019-04-05 2020-02-20 Porte-conducteur Withdrawn EP3719235A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019002495.8A DE102019002495A1 (de) 2019-04-05 2019-04-05 Leiterhalter

Publications (1)

Publication Number Publication Date
EP3719235A1 true EP3719235A1 (fr) 2020-10-07

Family

ID=69804412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20158445.5A Withdrawn EP3719235A1 (fr) 2019-04-05 2020-02-20 Porte-conducteur

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EP (1) EP3719235A1 (fr)
DE (1) DE102019002495A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4407122A1 (fr) * 2023-01-26 2024-07-31 Adelie, LLC Ensemble de serrage pour échafaudage

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1185169A (fr) * 1956-10-26 1959-07-30 étançon pour mines ou analogues
US2947555A (en) 1954-03-15 1960-08-02 Olsen Charles Scaffold ladder clamp
CH393709A (it) * 1964-04-08 1965-06-15 Pedroli Dante Giunto per il collegamento di strutture tubolari o di profilati
FR2359300A2 (fr) * 1976-07-19 1978-02-17 Somefran Bride a clavettes imperdables pour la jonction d'elements tubulaires
NL8800573A (nl) * 1988-03-08 1989-10-02 Alprokon Promotie Ontwikk Bv Buis- en klemsamenstel.
JPH0473373A (ja) * 1990-07-16 1992-03-09 Satake Tekko Kk 足場用パイプ支柱の固定方法
JP3000733U (ja) * 1994-02-03 1994-08-16 丸井産業株式会社 足場クランプ
GB2276414A (en) * 1993-03-27 1994-09-28 Edward Joseph Russell Campbell Scaffolding bracket
WO1997003273A1 (fr) * 1995-07-12 1997-01-30 Eduardo Antunes Dispositif de securite assurant la stabilite des echelles par fixation intermediaire de l'echelle aux structures tubulaires ou rectangulaires d'echafaudages ou garde-corps quelle que soit leur inclinaison
GB2394748A (en) 2004-02-27 2004-05-05 Presco Scaffolding Ltd Securing ladder to scaffolding
JP2011026770A (ja) 2009-07-21 2011-02-10 Nikko Sekku Kk 連結具及び梯子付き作業台
KR200460481Y1 (ko) 2010-02-23 2012-05-25 주식회사 금호 사다리 고정용 클램프
US20160208554A1 (en) * 2015-01-15 2016-07-21 Ronald Lee Harris Uplock ladder anchoring safety attachment
WO2017100272A1 (fr) * 2015-12-11 2017-06-15 David Johnson Échelle motorisée pour véhicules industriels de grandes dimensions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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DE2029352A1 (de) * 1970-06-13 1971-12-23 Löhrer, August, Steinach, St. Gallen (Schweiz) Mobile Arbeitsbühne
DE2705149A1 (de) * 1977-02-08 1978-08-10 Eberhard Layher Auflageriegel fuer metallrohrgerueste
US4566819A (en) * 1982-03-01 1986-01-28 Aluma Systems, Incorporated Clamp for shoring and scaffolding frames
EP2505741A1 (fr) * 2011-03-30 2012-10-03 Marcegaglia Buildtech S.R.L Joint pour l'installation de tubes d'échafaudage et échafaudage comprenant ledit joint

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947555A (en) 1954-03-15 1960-08-02 Olsen Charles Scaffold ladder clamp
FR1185169A (fr) * 1956-10-26 1959-07-30 étançon pour mines ou analogues
CH393709A (it) * 1964-04-08 1965-06-15 Pedroli Dante Giunto per il collegamento di strutture tubolari o di profilati
FR2359300A2 (fr) * 1976-07-19 1978-02-17 Somefran Bride a clavettes imperdables pour la jonction d'elements tubulaires
NL8800573A (nl) * 1988-03-08 1989-10-02 Alprokon Promotie Ontwikk Bv Buis- en klemsamenstel.
JPH0473373A (ja) * 1990-07-16 1992-03-09 Satake Tekko Kk 足場用パイプ支柱の固定方法
GB2276414A (en) * 1993-03-27 1994-09-28 Edward Joseph Russell Campbell Scaffolding bracket
JP3000733U (ja) * 1994-02-03 1994-08-16 丸井産業株式会社 足場クランプ
WO1997003273A1 (fr) * 1995-07-12 1997-01-30 Eduardo Antunes Dispositif de securite assurant la stabilite des echelles par fixation intermediaire de l'echelle aux structures tubulaires ou rectangulaires d'echafaudages ou garde-corps quelle que soit leur inclinaison
GB2394748A (en) 2004-02-27 2004-05-05 Presco Scaffolding Ltd Securing ladder to scaffolding
JP2011026770A (ja) 2009-07-21 2011-02-10 Nikko Sekku Kk 連結具及び梯子付き作業台
KR200460481Y1 (ko) 2010-02-23 2012-05-25 주식회사 금호 사다리 고정용 클램프
US20160208554A1 (en) * 2015-01-15 2016-07-21 Ronald Lee Harris Uplock ladder anchoring safety attachment
WO2017100272A1 (fr) * 2015-12-11 2017-06-15 David Johnson Échelle motorisée pour véhicules industriels de grandes dimensions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4407122A1 (fr) * 2023-01-26 2024-07-31 Adelie, LLC Ensemble de serrage pour échafaudage

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