Perforated wall system and fastening element

Description

[0001] The proposed solution concerns a perforated wall system and a fastening element for a perforated wall system.

[0002] A perforated wall system, such as that known from DE 20 2017 000 226 U1, GB 972 995 A, or US 4,457,650 A, comprises a perforated wall with multiple perforated wall openings, to each of which a fastening element can be variably fixed. The variable option of using the perforated wall for fixing a fastening element in terms of position, quantity, and type has previously regularly required a complex design of the perforated wall itself so that suitable fastening elements can be hung or otherwise fixed thereto. Similar fastening elements are also known from FR 3 014 510 A, DE 92 15 507 U, DE 40 32 865 A, and DE 94 07 340 U.

[0003] There is therefore a need for a variable, easily assembled perforated wall system and a corresponding easy-to-assemble fastening element for a perforated wall system. This object is achieved by a perforated wall system according to claim 1 and by a fastening element according to claim 8.

[0004] A proposed perforated wall system provides, in addition to a perforated wall having a front and a rear side and a plurality of perforated wall openings, at least one fastening element for fastening to the perforated wall. The fastening element comprises an element body and a locking element provided on the element body for releasably connecting the fastening element to the perforated wall at one of the perforated wall openings in the perforated wall. The locking element of the proposed perforated wall system protrudes through the perforated wall opening for fastening the fastening element. Furthermore, the locking element is rotatable and can be clamped against the rear side of the perforated wall, and the element body can be clamped against the front side of the perforated wall by actuating the element body accessible at the front side of the perforated wall.

[0005] Actuating the element body, accessible from the front of the perforated wall, rotates the locking element so that the locking element, inserted into and protruding through the perforated wall opening, engages behind the perforated wall at the perforated wall opening. The element body also clamps the locking element against the back of the perforated wall and the element body against the front of the perforated wall.

[0006] For example, the actuating element is provided for adjusting the locking element and the element body relative to one another. This includes, for example, that by rotating the actuating element, the locking element and the element body of the fastening element are brought closer together in order to clamp a section of the perforated wall having the perforated wall opening between the locking element and the element body and thus to fix the fastening element to the perforated wall. The proposed solution further includes in particular that an actuation of the actuating element follows or precedes an actuation of the element body, or both actuations are combined with one another in order to (a) rotate the locking element and clamp it against the back of the perforated wall and (b) clamp the element body against the front of the perforated wall.

[0007] When the fastener is properly secured, the locking element engages behind the perforated wall at the perforated wall opening. The locking element is then in a locked position and cannot be removed from the perforated wall opening without being rotated back to its original position. To do this, the locking element must first be rotated 90° (around a central axis of the fastener) from the locked position back to its original position before it can be removed from the perforated wall opening.

[0008] According to the invention, the locking element has a shoulder received in the perforated wall opening, which locks the locking element against rotation in the perforated wall opening by more than 90° (or another predetermined angle of rotation). Accordingly, the locking element can then, for example, protrude with a section through a perforated wall opening and, after rotation, engage behind the perforated wall at the perforated wall opening. In this case, a shoulder of the locking element received in the perforated wall opening locks the locking element against rotation by more than 90°, so that the locking element, which is inserted as intended into a perforated wall opening, can ultimately only pivot through a predetermined angular range between an initial position and a locking position on the perforated wall. In the locking position, for example, the locking element engages behind the perforated wall at the perforated wall opening and is then clamped against the back of the perforated wall by rotating the element body.

[0009] The shoulder that limits the rotation of the locking element in the hole wall opening has an eye-shaped cross-sectional area with two opposing radii and two opposing corners. The two opposing radii thus define, for example, opposing convex curves that are connected at the opposite corners.

[0010] According to the invention, the fastening element comprises a threaded bolt having an external thread engaging with an internal thread of the locking element. The threaded bolt is connected to the element body, so that rotation of the element body allows the threaded bolt to rotate, and the locking element can be moved closer to or away from the element body. By moving the locking element closer to the element body or an underside of the element body, the locking element can be clamped against the rear side of the perforated wall, and the element body can be clamped against the front side of the perforated wall.

[0011] An actuating element for the fastening element can be accessible on the front side of the perforated panel. The actuating element is, for example, positively connected to the threaded bolt. In one design variant, the actuating element is pivotably mounted on the threaded bolt.

[0012] Additionally, the actuating element can be rotatably held in a recess or depression of the element body via a section. In a further development based on this, a corresponding section of the actuating element rotatably held in a recess of the element body is designed, for example, as a pivot pin (section).

[0013] In one design variant, the threaded bolt provided on the fastening element is, on the one hand, rotatable together with the locking element so that the locking element can engage behind the perforated wall at the perforated wall opening (to secure the locking element protruding through the perforated wall opening against being pulled out of the perforated wall opening). On the other hand, the threaded bolt is rotatable relative to the locking element in order to clamp the locking element against the back of the perforated wall and the element body against the front of the perforated wall. Thus, a two-phase movement sequence can be realized with the threaded bolt.Thus, when mounting the fastening element to a perforated wall opening via the threaded bolt, the locking element can initially be rotated in order to bring the locking element inserted into the perforated wall opening into a locking position, before subsequent further turning of the threaded bolt clamps the locking element, which remains in its locking position, against the back of the perforated wall and the element body against the front of the perforated wall.

[0014] To release the fastening element from the perforated wall, a spring washer can be provided that engages in a groove of the locking element and is attached to the threaded bolt. By turning the threaded bolt, the locking element can be moved (from a locked position) to a starting position, from which the locking element can be pulled out of the perforated wall opening from the front of the perforated wall.

[0015] The perforated wall opening of a perforated wall system according to the invention has a slotted hole shape.

[0016] In one embodiment, the element body has a plurality of T-slots and / or a plurality of bores for attaching an object and / or an attachment to the element body. T-slots and / or bores provided on the element body can thus be used to attach further components of the perforated wall system, in particular furnishings, i.e. in particular furniture, attachments and / or equipment of the perforated wall system. Via the plurality of T-slots and / or the plurality of bores, predefined attachment points for further components of the perforated wall system and / or other attachments are thus predetermined and formed on the element body.

[0017] Several T-slots and several holes can alternate along the circumference of the element body. For example, a design variant is provided with an element body with a hexagonal cross-section, in which the holes are located in the area of ​​the corners of the hexagonal cross-section with T-slots in between.

[0018] In a variant embodiment, which is not part of the present invention, the element body has a recess on an underside facing the perforated wall, from which the locking element protrudes from the element body. The recess is set back from the perforated wall when the element body is in intended contact with the perforated wall in the area of ​​a perforated wall opening. The fastening element for perforated walls with different wall thicknesses can, for example, be used via the recess on the underside of the element body. For example, a shoulder explained above, which limits the rotatability of the locking element in a perforated wall opening, can still be at least partially accommodated in the recess provided on the underside of the element body in the case of a thin-walled perforated wall, in particular if the shoulder does not fit completely into the perforated wall opening. For example, ifIf the wall thickness of the perforated wall is smaller than the height of the heel, the heel can still be partially accommodated in the recess on the underside of the element body.

[0019] In one embodiment, the actuating element has a bracket part. Such a bracket part can, for example, be formed by or encompass a shackle. The bracket part can alternatively or additionally comprise a ring nut or be formed by a ring nut. In principle, the bracket part can be used to suspend attachments or straps, in particular tensioning straps. Thus, a proposed perforated wall system can be provided via at least one fastening element or multiple fastening elements for securing transported goods in a vehicle. Alternatively or additionally, furnishings can be fastened to the perforated wall via the perforated wall system and the at least one fastening element.

[0020] In one embodiment variant, which is not part of the present invention, at least one elastic element is provided between a section of the actuating element and a section of the element body, which elastic element prestresses the actuating element against the element body. The at least one elastic element can, for example, ensure that when a force acts on the actuating element during use, the fastening element does not immediately lead to further tensioning of the element body and the locking element on the perforated wall or, conversely, to a loosening of the fastening element on the perforated wall. If, for example, a (lashing) force applied by a tensioning belt acts on the actuating element, the at least one elastic element can prevent...a force pointing in a corresponding direction, the fastening element tightens extremely against the hole wall and thus makes loosening considerably more difficult or, conversely, the fastening element no longer tightens sufficiently, as a result of which the fastening element can no longer have sufficient hold on the hole wall.

[0021] The at least one elastic element can comprise, for example, a disc spring. In a further development based on this, a spring assembly with several disc springs arranged in a row is provided for preloading the actuating element against the element body.

[0022] According to the invention, the fastening element has an indicator element on which the position of the locking element, which is invisible on the front side of the perforated wall after insertion into the perforated wall opening, can be visually and / or haptically recognized. Thus, the indicator element allows a user to visually or haptically recognize whether the locking element is, for example, in an initial position in which the locking element can be removed from the perforated wall opening, or in a locking position in which the locking element (maximally) engages behind the perforated wall at the perforated wall opening.

[0023] The indicator element may, for example, comprise a threaded bolt with a cross marking, a hammer head screw or a slotted screw.

[0024] According to the present invention, an elastic pressure element is further provided on the element body, which presses against an external thread of the threaded bolt in a transverse direction that runs transversely to the longitudinal extension direction of the threaded bolt (and a central axis of the fastening element that coincides therewith). The elastic pressure element ensures that the locking element and the indicator element are rotated when the element body is rotated. The elastic pressure element thus ensures that when the fastening element is fixed using the locking element, the indicator element is also rotated in order to indicate the correct position of the locking element. In a further development, in addition to the elastic pressure element, a pressure screw can be provided on the element body, by means of which the force with which the elastic pressure element presses against the external thread of the threaded bolt can be adjusted.

[0025] In one embodiment, the display element is flush with an end face of the fastening element on which the plurality of bores are provided. Such a flush finish of the display element is suitable, for example, for a particularly flat element body. The flush-fitting display element then does not restrict the attachment of further components to the element body via the bores, and in particular to the end face. At the same time, however, the current position of the locking element remains visually and / or haptically recognizable via the display element. For example, in this context the display element can be implemented as a slotted screw whose head is flush with an end face of the element body.

[0026] In one embodiment, a connecting piece is provided on the fastening element, to which, in particular, a complete tensioning strap device can be attached. The connecting piece provided on the fastening element is thus designed and intended in particular for attaching a complete tensioning strap device of the perforated wall system. At the same time, however, such a connecting piece can also be designed and intended for connecting additional components and, in particular, additional attachments.

[0027] In principle, the perforated wall system can include a tensioning strap device with a retractable tensioning strap. Such a tensioning strap device can, for example, feature a mechanically, electrically, or hydraulically operated ratchet mechanism. Using the fastening element, a corresponding tensioning strap device can be attached to the perforated wall without major installation effort, allowing the tensioning strap device to be subsequently used to secure transported goods to the perforated wall.

[0028] In principle, the perforated wall can form part of a ceiling panel and / or a wall panel of a vehicle.

[0029] A further aspect of the proposed solution relates to a fastening element for fastening to a perforated wall according to claim 8.

[0030] Design variants of a proposed fastening element can be used, in particular, in design variants of a proposed perforated wall system, in accordance with the explanations above and below. Accordingly, the advantages and features explained above and below for design variants of a proposed perforated wall system also apply to design variants of a fastening element used therein, and vice versa. For example, a fastening element can be provided for fastening to a perforated wall that forms part of a floor panel, a wall panel, or a ceiling panel of a vehicle. Alternatively or additionally, a fastening element can be provided for fastening a bracket part, a tensioning belt device, and / or a piece of furniture to the perforated wall.

[0031] The attached figures illustrate possible design variants.

[0032] Here we show: Figures 1 to 7B show, in different views, a first set of embodiments of a perforated wall system and a fastening element, this first set not falling within the scope of protection of the independent claims; Figures 8 to 14 show, in different views, a second set of embodiments of a perforated wall system and a fastening element, this set not falling within the scope of protection of the independent claims; Figures 15 to 25 show, in different views, a third set of embodiments of a perforated wall system according to the invention and of a fastening element according to the invention; Figures 26 to 28 show, in different views, a tensioning belt apparatus for a perforated wall system.

[0033] In the Figures 1 to 28Different views show various design variants of a perforated wall system LS with design variants of a fastening element 1, by means of which individual objects, in particular cargo and mobile furnishings, e.g. in transport vehicles, can be fastened and fixed. Individual aspects of the different design variants can be easily combined with each other. In particular, aspects of the three sets of design variants according to the Figures 1 to 7B , 8 to 14 and 15 to 25 can be combined with each other and exchanged, whereby the design variants of the Figures 1 to 14 do not fall within the scope of protection of the independent claims.

[0034] The Figures 1 to 7Bshow a fastening element 1 for a perforated wall system LS, in which perforated wall openings 3 can basically have geometric cross-sections of all kinds and the fastening element 1 can be fixed in the perforated wall opening 3, as is the case, for example, Figure 1 shows. The perforated wall 2 can be used, for example, in transport vehicles, whereby the perforated wall 2 can be used not only as wall cladding, but also as floor or ceiling cladding.

[0035] The fastening element 1 is designed in such a way that a firm and detachable connection to the perforated wall 2 can be established by simply inserting and twisting it into the respective perforated wall opening 3. The fastening element 1 has a movable part 4, the shape and dimensions of which allow the perforated wall opening 3 to be used for fastening. The movable part, a so-called locking element 4, fits positively into a perforated wall opening 3 and, after insertion into the perforated wall opening 3, can be moved into a position that no longer allows withdrawal from the perforated wall opening 3 (see also Figures 3A-3C and 4 ). The movement of the locking element is a twist.

[0036] The locking element 4 has a geometric cross-section with different side lengths, such as a rectangle or a slot. For example, the locking element 4 has an area between the long sides of a slot geometry 3L, which, due to two opposite radii R1 and two opposite corners E, allows a rotation of a maximum of 90° and only in one direction, see in particular Figures 3A to 3C . The fastening element 1 is consequently inserted with its locking element 4 through the perforated wall 2 far enough to allow displacement or rotation of the locking element 4 relative to the geometry of the perforated wall opening 3. Rotating it by 90° then prevents the locking element 4 from being pulled out of the perforated wall opening 3.

[0037] The locking element 4 can rotate into an area which lies in a milled recess or milled pocket T on the back of the perforated wall 2 (cf. Figure 4). In this case, a reinforcing plate V can be inserted into the milled pocket T, which reinforces the material and better distributes and absorbs the forces. The reinforcing plate V inserted into the pocket T is fixed, for example, with at least one screw. The reinforcing plate V reinforces the material of the perforated wall 2 or a perforated base so that the locking element 4 cannot be pressed into a support surface A, even under greater load, and the forces are better distributed. This provides greater stability.

[0038] An element body 5 of the fastening element 1, on which the locking element 4 is provided, is penetrated by a threaded bolt 7, which is connected on an upper side to a ring nut 6 with a cross pin 7A and on the underside to the locking element 4 in a threaded bore 13. In other words, the threaded bolt 7 passes through the element body 5 and ends at an actuating element, here in the form of the ring nut 6. By turning the ring nut 6, the threaded bolt 7 rotates into the locking element 4 and thus clamps the locking element 4 against the back of the perforated wall 2 and the element body 5 against the front of the perforated wall 2.

[0039] The threaded bolt 7 further has at one end a spring ring 7B in a groove (see in particular Figures 2 and 2A), which safely carries the locking element 4 during a reverse rotational movement when the connection is released and brings it to a starting position which allows the fastening element 1 to be removed from the perforated wall 2 (see also Figures 3A to 3C). When the connection is released, the ring nut 6 is turned in the opposite direction to the screwing-in direction. The tension is released and the locking element 4 rotates back into the starting or inserted position. The spring ring 7B, which is inserted in the groove in the threaded bolt 7, causes the locking element 4 to rotate with the threaded bolt 7. In the area of ​​the spring ring 7B, the threaded hole 13 of the locking element 4 is enlarged because the spring ring 7B has a larger diameter or radius R2 than the threaded bolt 7. The central threaded hole 13 of the locking element 4, in the embodiments shown, therefore has an area that corresponds almost to the outer diameter of the spring ring 7B inserted in the groove on the threaded bolt 7 and thus not only ensures that the locking element 4 is driven along during the backward movement, but also makes the locking element 4 captive.

[0040] The fastening element 1 can, for example, be used on the floor and serve as a movement-blocking element. For example, relatively heavy goods to be transported can be placed on the floor of a vehicle, e.g. a van, and then pushed against one or more fastening elements 1, each fastened in a respective perforated wall opening 3 of the perforated wall 2 located on the floor. On the other side of the goods to be transported, further fastening elements 1 are inserted into perforated wall openings 3. It is now possible to lash the goods to be transported using tensioning belts. During braking, the goods to be transported are secured against slipping by the fastening elements 1 against which the goods to be transported.

[0041] In with the Figures 5, 5A and 6In the embodiments shown, a fastening element 1 does not have a ring nut 6, which is connected to the threaded bolt 7 by a cross pin 7A. Rather, the threaded bolt 7 is directly connected to the element body 5 of the fastening element 1 by means of a cross pin Q. As a result, after insertion into the perforated wall opening 3, the fastening element 1 can be fixed directly by turning the element body 5. Subsequently, further objects or adapter plates can be attached to the element body 5 by means of the (threaded) bores 26. The element body 5 can be designed in any length and thus adapted in particular to the transported goods. Thus, the embodiment of the Figure 6 exemplarily no cylindrical element body 5, but one e.g. compared to the variant of the Figures 5 and 5A flatter, disc-like element body 5.

[0042] In principle, the Figures 7A and 7BThe individually illustrated element body 5 can be formed by a drawn profile, e.g., an aluminum profile, with a round or square cross-section, in particular with a hexagonal cross-section. The element body 5, and in particular such a profile, can have T-slots 23 in the longitudinal direction and bores 26 on an end face of the fastening element 1, to which adapter plates, extensions, and attachments can be attached. The T-slots 23 can be used as a fastening option for additional extensions and attachments by means of T-slot nuts or T-slot stones. The bores 26 can also be provided with threads.

[0043] In the design variants of the Figures 8 to 14 the threaded bolt 7 is designed as an eyebolt (see in particular Figures 10 and 14). The threaded bolts 7 also pass through the element body 5 and end, at the front of the fastening element 1, at an actuating element 6, which is positively connected to the threaded bolt 7 (cf. in particular Figure 11 ). The actuating element 6 can have a ring or eyelet shape, which can each have a closed or partially open shape.

[0044] By turning the actuating element 6, the threaded bolt 7 designed as an eyebolt also turns into the locking element 4 in this embodiment and thus clamps the locking element 4 against the back of the perforated wall 2 and the element body 5 against the front of the perforated wall 2 (cf. e.g. Figure 10). The element body 5 has in the present case on its underside, from which the locking element 4 protrudes, a recess 50, into which the locking element 4 - with its shoulder 16 - can protrude if the thickness of the hole wall 2 is smaller than the dimension of the shoulder 16, as can be seen in particular from the Figure 14 is evident.

[0045] The actuating element 6 is in this case movable in two directions, so that the actuating element 6 can adapt to the direction from which, for example, a lashing force Z comes, which is exerted by a tensioning belt S4 suspended from the actuating element 6 via a suspension device S8 (cf. Figures 12 and 13 ). For this purpose, the actuating element 6 is provided with a commercially available shackle, for example. Such a (commercially available) shackle has a bracket part 6A and is connected to the eyebolt by a cross bolt 6B, so that the shackle can be replaced quickly and easily if necessary (see, for example, Figures 10, 11 and14 ).

[0046] If the lashing force Z) comes from an 'unfavorable' direction, it is possible that the fastening element 1 will tighten extremely tightly against the hole wall 2, making it very difficult to loosen, or that it will not tighten sufficiently and therefore not provide sufficient hold. For this purpose, an elastic element is provided, e.g. in the form of an elastic assembly, in particular in the form of a spring assembly 40 consisting of one or more disc springs 400, which has a set preload and sufficient tightening distance so that after tightening, the optimal direction with optimal hold can be set within one full turn (cf. Figure 13 ). Through the number and arrangement of the disc springs 400, a specific tightening force and a specific elastic tightening distance can be preset.

[0047] The spring assembly 40 is located, for example, in a recess or countersink 30 on the upper side of the element body 5 on the (longitudinal) axis of the threaded bolt and is therefore almost invisible (see in particular Figure 14 ). The spring assembly 40 is supported on the one hand in the recess 30 and on the other hand on a support section 6C assigned to the actuating element 6.

[0048] A fastening element of the Figures 8 to 14 can thus be inserted into a hole wall opening 3, whereby by subsequently turning the actuating element 6, the locking element 4 and the element body 5 can each be tightened against the hole wall 2. The elastic element 40 of the fastening element of the Figures 8 to 14 has a set preload and sufficient tightening distance so that an almost constant tightening force is achieved within one full rotation of the actuating element 6.

[0049] In the inventive embodiments of the Figures 15 to 25 A fastening element 1 is provided with an indicator element. With the aid of such an indicator element, the exact position of the locking element 4 relative to the perforated wall opening 3 can be visible to the user at any time after insertion of the locking element 4 into a perforated wall opening 3 and, if necessary, can also be felt in the dark by touching it with a finger. In particular, a user can see on the front of the perforated wall 2 whether the locking element 4 is in the optimal locking position, i.e. the position in which the long side of the locking element 4 is perpendicular to the long side of the perforated wall opening 3 (cf. e.g. Fig. 22A and 22B ).

[0050] The locking element 4 also has in the design variants of the Figures 15 to 25 a centrally arranged threaded hole 13 (cf. e.g. Figures 17 and 21). In this threaded hole 13, a threaded sleeve 35 engages, in which in turn a smaller threaded bolt with an integrated display element, e.g. a threaded screw with a hammer head, thus a hammer head screw 7, engages. This hammer head screw is firmly connected to the threaded sleeve 35 and firmly to the locking element 4, in particular by a transverse pin 9 (cf. in particular Figures 17, 18 and 21 ). The long sides 14 of the locking element 4 and the long sides 8 of a hammer head of the hammer head screw 7 have been brought into a parallel position before fixing, in particular before pinning; cf. Figure 17 The hammer head screw 7 passes through the element body 5 and a pivot pin 10, the element body 5 having a central threaded bore 11 and the pivot pin 10 having a through bore 17.

[0051] The exact rotational position of the locking element 4, which is no longer visible after insertion into the hole wall opening 3 because the element body 5 is arranged in front of it on the front side of the hole wall 2, can be read from the position of the hammer head of the hammer head screw 7, which is clearly visible, as is the case, for example, with the Figures 15, 16 and 21 illustrate.

[0052] The element body 5 according to the Figure 18has a further threaded bore 18, which is positioned transversely to the central threaded bore 11, in particular perpendicular thereto. An elastic pressure element 19, in particular a plastic part, and a pressure screw 20 are installed in this further threaded bore 18. The elastic pressure element 19 is pressed onto the threaded bolt 7 by variably tightening the pressure screw 20 and thereby causes the threaded sleeve 35 together with the hammer head screw 7 and thus the locking element 4 to be rotated when the element body 5 is rotated until it rests against the long side of the hole wall opening 3. Due to the eye-shaped geometry 33 of the shoulder 16, the locking element 4 also has a maximum rotational freedom of 90° (cf. e.g. Figures 22A and 22B ). The element body 5 can be rotated further against the hole wall 2, since the elastic pressure element 19 presses against the threaded sleeve 35, which only makes rotation difficult.

[0053] When a contact surface 12 on the underside of the element body 5 is in contact with the perforated wall 2 and the locking element 4 is pressed against the rear side of the perforated wall 2, the entire fastening element 1 sits firmly on the perforated wall 2. The shoulder 16 of the locking element 4 and the recess 50 in the center of the contact surface 12 of the element body 5 also ensure that the design variants of the Figures 15 to 25 different thicknesses of the perforated wall 2 are compensated, in particular if the thickness of the perforated wall 2 is smaller than the (height) dimension of the shoulder 16 of the locking element 4. Adequate clamping can thus always be guaranteed.

[0054] Also the element body 5 of the design variants of the Figures 15 to 25can consist of a drawn aluminum profile 22, which is equipped with T-slots 23 on the sides. Additional components can be attached to these T-slots 23, for example, using T-slot blocks. Likewise, the element body 5 can have hole-shaped recesses, in particular bores 26, on the end faces, which are parallel to the central axis and thus to the hammer-head screw 7. These bores 26 can be provided with threads and thus serve to attach additional components.

[0055] The element body 5 can also be made smaller. A so-called mini fastening element 1 shows an example - in addition to the Figure 6 - the Figure 24 . The fastening element 1 of the Figure 24also has (threaded) bores 26 to which all types of components can be attached. In order to create a continuous surface, a threaded bolt with a transverse marking, in particular a slotted screw 27, is used in this case instead of a hammer-head screw 7. The slotted screw 27 is connected or pinned to the locking element 4 in such a way that the position of a transverse marking in the form of a slot 31 of the slotted screw 27 indicates the position of the locking element 4 and does not protrude beyond an end face 32 of the element body 5 with the bores 26. The entire end face is thus available for the attachment of additional add-on parts. The slotted screw 27 (or another threaded bolt with a transverse marking) can have a further fastening bore 28 in the center, possibly also with an internal thread.The indicator element of the locking element 4 in the form of the slotted screw 27, which indicates the position of the locking element 4 on the front, is therefore installed flush with the end face 32 having the holes 26.

[0056] The design variants of the Figures 15 to 25thus show a (safety) fastening element 1 for a perforated wall system LS, in which fastening elements 1 can be inserted into perforated wall openings 3, wherein in these fastening elements 1, by turning an actuating element 6, a locking element 4 and an element body 5 can each be tightened against a perforated wall 2. In this case, a fastening element has at least one indicator element, on which the actual position of the locking element 4, which is no longer visible after insertion into a perforated wall opening 3, can be read optically and / or haptically. The indicator element can be, for example, a threaded bolt with a cross marking or a hammer-head screw 7 or a slotted screw 27. As explained above, the indicator element can be firmly connected to the locking element (cf. in particular ( Figures 17, 18 and 21 ).

[0057] As stated with reference to the Figures 17, 18 and 24As explained, the display element can in particular comprise a threaded bolt with a transverse marking in the form of a hammer-head screw 7 or a slotted screw 27. An elastic pressure element 19 can press in a transverse direction onto the respective thread with a force that can be adjusted by means of a pressure screw 20 in order to ensure that when the element body 5 is rotated, the locking element 4 and thus the display element are also rotated.

[0058] A ring-shaped suspension element, in particular in the form of a shackle bracket 6, which is rotatably attached to the pivot pin 10 with two threaded screws 37, which end in recesses 36 on the pivot pin 10, also serves in the embodiments of the Figures 15 to 25 for attaching, for example, a tensioning belt S4 or similar lashing elements (see in particular Figures 17 , 20 , and 21). The pivot pin 10 can be rotated around the hammer head screw 7 and can therefore also adapt to the direction from which a lashing force Z comes (cf. in particular Figs. 19 and 20 . Furthermore, the pivot pin 10 is recessed in a recess 30 of the element body 5 in order to counteract lateral forces during lashing.

[0059] Instead of a suspension element, such as the shackle 6, in a further development according to the Figure 25 A complete tensioning belt device 24 can be attached by means of a connecting piece 34 fixed to the element body 5. This tensioning belt device 24 can then, together with the fastening element 1, form a tensioning device for perforated wall systems, a so-called belt box. Such a tensioning device for a perforated wall system LS is shown as an example in the following Figures 26 to 28 shown.

[0060] The tensioning belt device S1 of the Figures 26 to 28 for a perforated wall system LS of the Figures 1 to 25has a tensioning strap S4 with a ratchet mechanism S5 and is fixed directly to an adapter plate S6. The adapter plate S6 has a connecting device S7, which can be connected directly to the perforated wall 2 or a connecting piece 34 of a fastening element 1.

[0061] The tensioning belt device S1 can further comprise a suspension device S8, which is also fixed to an adapter plate S9 and has a rotatable and pivotable suspension eyelet S11. The suspension eyelet S11 allows the retractable tensioning belt S4 to be positively attached using a suspension bracket S10. The entire tensioning device shown thus consists of a tensioning element or tensioning belt device S1 with a ratchet mechanism S5, which is fixed to an adapter plate S6, and a suspension device S8, which is fixed to an adapter plate S9. This special tensioning device is also referred to herein as a belt box.

[0062] Using the tensioning device, securing S3 loads is incredibly easy. The following few steps are required: 1. Position the goods to be transported S3 in the loading space of the means of transport, 2. Position and secure the tensioning belt device S1 on the perforated wall 2 - if necessary using a fastening element 1 -, 3. Position and secure the suspension device S8 on the perforated wall 2. 4. Unwind the tensioning belt S4 and hook the suspension bracket S10 positively onto the suspension eyelet S11, and 5. Actuate the ratchet mechanism S5, which tightens the tensioning belt S4 until sufficient tension is applied and the goods to be transported S3 are sufficiently secured.

[0063] During unwinding, the tensioning strap S4 is released at the ratchet mechanism S5, the suspension bracket S10 is unhooked from the suspension eyelet S11, and the tensioning strap S4 is wound up by the spring force of the ratchet mechanism S5. The transported load S3 is free again and can be removed from the transport vehicle. The tensioning process can also be carried out using an electrically, hydraulically, or purely spring-driven mechanism.

[0064] The tensioning belt device S1 and the suspension device S8 can each be positioned at any location on the perforated wall 2 when not in use to save space.

[0065] The Figures 26 to 28The tensioning device shown for a perforated wall system LS, which is used to secure transported goods in means of transport using tensioning belts, has a special tensioning element or a tensioning belt device S1, which is fixed to a connecting device S7, by means of which the tensioning belt device S1 can be connected directly to any perforated wall opening 3 of a perforated wall 2 or to a fastening element 1. The tensioning belt device S1 can be rotatably mounted on the connecting device S7 in order to be able to tension a tensioning belt S4 in all required directions.

[0066] A further part of the tensioning device is a suspension device S8, which can also be directly connected to any perforated wall opening 3 of a perforated wall 2 or to a fastening element 1. The suspension device S8 can have a rotatable and / or pivoting suspension eye S11, which can thus assume any position for the respective desired tensioning direction. For attachment to the suspension eye S1, the tensioning belt S4 of the tensioning belt device S1 can comprise a suspension bracket S10. List of reference symbols

[0067] 1 Fastening element 10 Pivot pin 11 Threaded hole in the element body 12 Contact surface of the element body 13 Threaded hole 14 Long side of the locking element 16 Shoulder of the locking element 17 Through hole of the pivot pin 18 Further threaded hole 19 Elastic pressure element 2 Perforated wall 20 Pressure screw 22 Drawn aluminum profile 23 T-slot 24 Tensioning strap device 26 (Threaded) hole 27 Slotted screw 28 Further hole 3 Perforated wall opening 30 Recess / countersink in the element body 31 Cross marking / slot 32 End face 33 Geometry of the shoulder 34 Connecting piece 35 Threaded sleeve 36 Recess on the pivot pin 37 Threaded screw 3 Long side of the slotted hole geometry 4 Locking element 40Spring assembly (elastic element) 400Disc spring 5Element body 50Recess 6Actuating element (eye nut / shackle) 6ABracket part 6BCross bolt 6CSupport section 7Threaded bolt / hammer head screw 7ACross pin (threaded bolt to eye nut) 7BSpring washer 8Long side of the hammer head 9Cross pin ASupport surface EEcorner QCross pin (threaded bolt toElement body) R1, R2Radius S1Tensioning belt device S10Hanging bracket S11Hanging eyelet S3Transported goods S4Tensioning belt S5Ratchet mechanism S6Adapter plate tensioning belt device S7Connecting device S8Hanging device S9Adapter plate hanging device TRecess / pocket VReinforcement plate ZLashing force

Claims

1. Perforated wall system, with - a perforated wall (2) which comprises a front side and a rear side and a plurality of perforated wall openings (3), and - at least one fastening element (1) for fastening to the perforated wall (2), wherein the at least one fastening element (1) is designed such that a fixed and detachable connection to the perforated wall (2) can be produced by simply inserting and twisting it into the respective perforated wall opening (3), wherein the at least one fastening element (1) comprises a threaded bolt (7), an element body (5) and a locking element (4) provided on the element body (5) for releasably connecting the fastening element (1) to the perforated wall (2) at said perforated wall opening (3), wherein the element body (5) is penetrated by the threaded bolt (7) and by an actuation of the element body (5) accessible at the front side of the perforated wall (2) (a) the locking element (4) is rotatable and tensionable against the rear side of the perforated wall (2), and (b) the element body (5) is tensionable against the front side of the perforated wall (2), characterised in that the perforated wall openings (3) comprising the form of an elongated hole and the locking element (4) for fastening the fastening element (1) protrudes through said perforated wall opening (3), wherein the rotatable blocking element (4) is designed such that it fits positively into the respective perforated wall opening (3) and, after insertion into said perforated wall opening (3), can be moved into a position which no longer allows it to be pulled out of said perforated wall opening (3), wherein the locking element (4) comprises a shoulder (16) received in said perforated wall opening (3), which locks the locking element (4) against rotation in said perforated wall opening (3) by more than 90°, wherein the shoulder (16) comprises an eye-shaped cross-sectional area with two opposing radii (R1) and two opposing corners (E), wherein the fastening element (1) comprises a display element (7, 27) on which the position of the locking element (4), which is not visible on the front side of the perforated wall (2) after insertion into opening (3) in the perforated wall, is visually and / or haptically detectable at the front side of the perforated wall (2), wherein the threaded bolt (7) comprises an external thread engaging with an internal thread of the locking element (4), wherein the threaded bolt (7) is also firmly connected to the locking element (4) and the element body (5) comprises a central threaded bore (11) in which the external thread of the threaded bolt (7) engages, and wherein an elastic pressure element (19) is provided on the element body (5) which presses in a transverse direction, which extends transversely to a longitudinal extension direction of the threaded bolt (7), onto an external thread of the threaded bolt (7) in order to ensure that when the element body (5) is rotated, the locking element (4) and the display element are rotated until the locking element (4) is locked against rotation in the said perforated wall opening (3) by more than 90° due to the eye-shaped geometry (33) of the shoulder (16), and, after locking the locking element (4), the element body (5) can be rotated further in order to clamp the locking element (4) against the rear side of the perforated wall (2) and the element body (5) against the front side of the perforated wall (2).

2. Perforated wall system according to claim 1, characterised in that the element body (5) comprises multiple T grooves (23) and / or multiple bores (26) for fastening an object and / or attachment part to the element body (5).

3. Perforated wall system according to claim 2, characterised in that the multiple T grooves (23) and the multiple bores (26) are provided on the element body (5) and the T grooves (23) and bores (26) alternate along a circumference of the element body (5), and / or element body (5) comprises, on a bottom side facing the perforated wall (2), a recess (50) at which the locking element (4) protrudes from the element body (5).

4. Perforated wall system according to claim 1, characterised in that the element body (5) comprises multiple bores (26) for fastening an object and / or attachment part to the element body (5) and the display element (27) is flush with an end face of the fastening element (1) on which the multiple bores (26) are provided.

5. Perforated wall system according to one of the preceding claims, characterised in that a connecting piece (34) is provided on the fastening element (1), to which in particular a complete tensioning strap apparatus (24) can be fastened, and / or the perforated wall system (LS) comprises a tensioning strap apparatus (24, S1) with a windable tensioning strap (S4).

6. Perforated wall system according to one of the preceding claims, characterised in that a bracket part (6), a tensioning strap apparatus (24, S1) and / or a fixture is fastened to the perforated wall (2) via the fastening element (1).

7. Vehicle, with a perforated wall system according to one of the preceding claims, wherein the perforated wall forms part of a floor panelling, ceiling panelling and / or wall panelling of the vehicle.

8. Fastening element for fastening to a perforated wall (2), comprising an element body (5), a threaded bolt (7) and a locking element (4) provided on the element body (5) and protruding from a bottom side of the element body (5) for releasably connecting the fastening element (1) to the perforated wall (2) at an elongate perforated wall opening (3), wherein the fastening element (1) is designed such that a fixed and detachable connection to the perforated wall (2) can be produced by simply inserting and twisting it into the perforated wall opening (3) of the perforated wall (2), wherein the element body (5) is penetrated by the threaded bolt (7), and by actuation of the element body (5) (a) the locking element (4) is rotatable and tensionable against a rear side of the perforated wall (2), and (b) the element body (5) is tensionable against the front side of the perforated wall (2), characterised in that the locking element (4) is set up, for the fastening of the fastening element (1), to project through the opening (3) in the perforated wall to protrude from a rear side of the perforated wall (2), wherein the rotatable locking element (4) is designed such that it fits positively into the perforated wall opening (3) and, after insertion into the perforated wall opening (3), can be moved into a position which no longer allows it to be pulled out of the perforated wall opening (3), wherein the locking element (4) comprises a shoulder (16) to be received in the perforated wall opening (3), which locks the locking element (4) against rotation in the perforated wall opening (3) by more than 90°, wherein the shoulder (16) comprises an eye-shaped cross-sectional area with two opposing radii (R1) and two opposing corners (E), wherein the fastening element (1) comprises a display element (7, 27) on which the position of the locking element (4), which is not visible on the front side of the perforated wall (2) after insertion into opening (3) in the perforated wall, is visually and / or haptically detectable at the front side of the perforated wall (2), wherein the threaded bolt (7) comprises an external thread engaging with an internal thread of the locking element (4), wherein the threaded bolt (7) is also firmly connected to the locking element (4) and the element body (5) comprises a central threaded bore (11) in which the external thread of the threaded bolt (7) engages, and wherein an elastic pressure element (19) is provided on the element body (5) which presses in a transverse direction, which extends transversely to a longitudinal extension direction of the threaded bolt (7), onto an external thread of the threaded bolt (7) in order to ensure that when the element body (5) is rotated, the locking element (4) and the display element are rotated until the locking element (4) is locked against rotation in the said perforated wall opening (3) by more than 90° due to the eye-shaped geometry (33) of the shoulder (16), and, after locking the locking element (4), the element body (5) can be rotated further in order to clamp the locking element (4) against the rear side of the perforated wall (2) and the element body (5) against the front side of the perforated wall (2).