Abstract
A connecting component having a shuttering interface for releasably connecting to a frame of a formwork panel, wherein the shuttering interface comprises a first gripping device having at least one first gripping arm with a clamping jaw and a second gripping device having at least one second gripping arm with a clamping jaw, wherein the first gripping arms of the first gripping device are movable in a closing direction relative to the second gripping arms of the second gripping device in order to connect the clamping jaws to or release them from the frame, and having at least one fixture interface for releasably connecting to a fixture, wherein the shuttering interface and the fixture interface are actuatable independently of one another.
Claims
1. A connecting component having a shuttering interface for releasably connecting to a frame of a formwork panel, wherein the shuttering interface comprises a first gripping device having at least one first gripping arm with a clamping jaw and a second gripping device having at least one second gripping arm with a clamping jaw, wherein the first gripping arms of the first gripping device are movable in a closing direction relative to the second gripping arms of the second gripping device in order to connect the clamping jaws to or release them from the frame, and having at least one fixture interface for releasably connecting to a fixture, wherein the shuttering interface and the fixture interface are actuatable independently of one another.
2. The connecting component according to claim 1, wherein the fixture interface can be connected to a scaffold section, a platform section, a support, as an fixture.
3. The connecting component according to claim 1, wherein the shuttering interface has a locking mechanism in order to adjust and/or releasably fix the position of the gripping arms in the closing direction.
4. The connecting component according to claim 3, wherein the locking mechanism comprises a wedge.
5. The connecting component according to claim 4, wherein the two gripping devices each have recesses which at least partially overlap one another and into which the wedge is or is inserted.
6. The connecting component according to claim 5, wherein the wedge is captively arranged in the recesses.
7. The connecting component according to claim 1, wherein the first gripping device has two first gripping arms, and the second gripping device has a second gripping arm.
8. The connecting component according to claim 7, wherein the gripping arms run plane-parallel and at a distance from one another, and the second gripping arm is arranged in an intermediate space between the two first gripping arms.
9. The connecting component according to claim 7, wherein at least one bolt is present which bridges an intermediate space between the first gripping arms and is arranged such that it serves as a stop for the second gripping arm.
10. The connecting component according to claim 1, wherein the clamping jaws have a projection at their front ends, which projection is designed to engage in grooves of the frame.
11. The connecting component according to claim 1, wherein the shuttering interface and at least one of the fixtures are detachably connected to one another, wherein the shuttering interface and the fixture interface preferably each have a contact surface with an elongated hole, and wherein a fastening element can be introduced through the elongated holes in order to releasably connect the contact surfaces to one another.
12. The connecting component according to claim 11, wherein the fastening element is integrally connected to the contact surface of the fixture interface, and/or the second gripping arm has a projection which is designed and arranged such that a rotation of the fastening element is limited by the projection.
13. The connecting component according to claim 11, wherein the contact surface of the shuttering interface is formed by an angled surface of one of the first gripping arms, and/or the contact surface of the fixture interface is formed by a base of a rail U-shaped in cross section.
14. The connecting component according to claim 1, wherein at least one of the fixtures interfaces has a bore for fastening a push-pull prop.
15. The connecting component according to claim 14, wherein at least one of the first and/or second gripping arms has the bore.
16. A system for shuttering a wall element, comprising at least one formwork panel and at least one connecting component, wherein the formwork panel has a frame having multiple longitudinal struts and multiple cross struts, wherein the longitudinal struts and the cross struts are arranged substantially perpendicular to one another, wherein at least a section of the longitudinal struts and/or of the cross struts has at least two grooves which run in the longitudinal direction and on opposite side surfaces of the respective longitudinal strut and/or cross strut, and wherein the connecting component is a connecting component according to claim 1, wherein the gripping arms of the connecting component engage in the at least two grooves of a respective longitudinal strut and/or cross strut.
17. The connecting component according to claim 2, wherein the support is a push-pull prop.
18. The connecting component according to claim 4, wherein an outer contour of the wedge at least partially forms a control surface.
19. The connecting component according to claim 6, wherein the wedge has stops, each projecting beyond the recesses at its front ends to form the captive securing.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0071] In the drawings:
[0072] FIG. 1 shows a perspective partial view of a formwork panel on which multiple connecting components according to the invention are releasably fixed;
[0073] FIG. 2 shows a perspective view of a transverse or longitudinal strut on which a connecting component according to the invention is fixed;
[0074] FIG. 3 shows a side view according to FIG. 2;
[0075] FIG. 4a shows a sectional view of a detail of the formwork panel with a representation of a cross strut with grooves in a first configuration engaging into the gripping arms of the connecting component;
[0076] FIG. 4b shows a sectional view of a detail of the formwork panel with a representation of a cross strut with grooves in a second configuration engaging into the gripping arms of the connecting component;
[0077] FIG. 5 shows a perspective view of the connecting component in conjunction with an fixture in a design as an intermediate bar of a scaffold section;
[0078] FIG. 6 shows a perspective view of the connecting component according to FIG. 2 in conjunction with an fixture designed as a push-pull prop;
[0079] FIG. 7 shows a perspective view of the connecting component according to FIG. 2 in conjunction with an fixture designed as a scaffold section, in particular as a vertical bar;
[0080] FIG. 8 shows a simplified sectional view through a longitudinal or cross strut of a frame of a formwork panel with advantageous dimensions which are particularly suitable for a connection to a connecting component according to the invention;
[0081] FIG. 9 shows a perspective view of a system for shuttering a wall element;
[0082] FIG. 10 shows a side view of a system for shuttering a wall element;
[0083] FIG. 11 shows a front view of the connecting component in a first embodiment in the unlocked state;
[0084] FIG. 12 shows a sectional view according to the line XII-XII according to FIG. 11;
[0085] FIG. 13 shows a front view of the connecting component in the first embodiment in the closed position;
[0086] FIG. 14 shows a sectional view according to the line XIV-XIV according to FIG. 13;
[0087] FIG. 15 shows a front view of the connecting component in a second embodiment in the unlocked state;
[0088] FIG. 16 shows a sectional view according to the line XVI-XVI according to FIG. 15;
[0089] FIG. 17 shows a front view of the connecting component in the second embodiment in the closed position;
[0090] FIG. 18 shows a sectional view according to the line XVIII-XVIII according to FIG. 17;
[0091] FIG. 19 shows a side view of a wedge;
[0092] FIG. 20 shows a perspective view of the wedge according to FIG. 19;
[0093] FIG. 21 shows another perspective view of the wedge according to FIG. 19;
[0094] FIG. 22 shows a side view of the connecting component in which one of the first gripping arms is removed and a projection of the second gripping arm is drawn in a broken line which can serve as an anti-rotation device for a fastening element connecting the fixture interface and the shuttering interface;
[0095] FIG. 23 shows another view of the connecting component according to FIG. 22;
[0096] FIG. 24 shows another view of the connecting component according to FIG. 22;
[0097] FIG. 25 shows a side view of the connecting component according to FIG. 22, in which the second gripping arm is removed as well; and
[0098] FIG. 26 shows a side view of the rear side of the contact surface of the fixture interface, wherein a fastening element designed as a double T is inserted into an elongated hole in the contact surface.
[0099] Functionally identical elements are provided with the same reference signs in the figures.
DETAILED DESCRIPTION OF THE FIGURES
[0100] FIG. 1 shows a formwork panel 1 which, together with connecting components 2, form a system 3 for shuttering a wall element (not shown). The formwork panel 1 has a frame 4 which has multiple cross struts 5 and multiple longitudinal struts 6, wherein the longitudinal struts 6 and the cross struts 5 are arranged substantially perpendicular to one another. At least a part of the longitudinal struts 6 and/or of the cross struts 5 has at least two grooves 7, 8 which run in the longitudinal direction and on opposite side surfaces 9 (or on the upper side and the underside) of the respective longitudinal strut 6 and/or cross strut 5. In FIG. 1, only the upper side surfaces 9 of the cross struts 5 with the grooves 7 are visible. Only the cross struts 5 are also provided with the grooves 7. The grooves 8 in the lower side surfaces 9 of the cross struts 5 can be seen in more detail in FIG. 2. As shown further in FIG. 1, a scaffold section 10 with vertical bars 10a and horizontal bars 10b is attached to the formwork panel 1 by means of the connecting components 2.
[0101] As can also be seen from FIG. 1, the formwork panel 1 has a formwork facing 11 which, when in a state connected to the frame 4, rests on at least a part of the longitudinal struts 6 and/or the cross struts 5. The side surfaces 9 of the respective longitudinal strut 6 and/or cross strut 5 in which the grooves 7, 8 are arranged run substantially perpendicular to a front side of the frame 4 provided for attaching the formwork facing 11.
[0102] The frame 4 comprises two outer frame cross struts 5a and two outer frame longitudinal struts 6a, between which the inner cross struts 5 and/or the inner longitudinal struts 6 are arranged, wherein the inner cross struts 5 have the grooves 7, 8.
[0103] All inner cross struts 5 and/or all inner longitudinal struts 6 can have the grooves 7, 8, and the outer frame cross struts 5a and/or the outer frame longitudinal struts 6a can preferably have no grooves 7, 8.
[0104] In the present exemplary embodiment, all inner cross struts 5 comprise the grooves 7, 8.
[0105] FIG. 2 shows a cross strut 5 of a formwork panel 1 (not shown in FIG. 2) with a connecting component 2 which engages in the grooves 7, 8 of the cross strut 5. In another exemplary embodiment, the cross strut 5 could also be a longitudinal strut 6. Viewed in cross section of the respective longitudinal strut 6 and/or cross strut 5, the grooves 7, 8 are arranged axially symmetrically relative to one another and are arranged opposite one another.
[0106] The grooves 7, 8 can extend at least over a partial length or over the entire length of the respective longitudinal strut 6 and/or cross strut 5.
[0107] The connecting component 2 has a shuttering interface 200 for detachably connecting to the frame 4 of the formwork panel 1. The shuttering interface 200 comprises a first gripping device 210 having at least one first gripping arm 211 having a clamping jaw 212 and a second gripping device 220 having at least one second gripping arm 221 having a clamping jaw 222 (see FIG. 3).
[0108] In the exemplary embodiments (see also FIGS. 11 to 18 and FIGS. 22 to 25), the first gripping device 210 has two first gripping arms 211, each having a clamping jaw 212. The second gripping device 220 has a second gripping arm 221 which is arranged in an intermediate space between the two first gripping arms 211.
[0109] The first gripping arms 211 of the first gripping device 210 are movable relative to the second gripping arm 221 of the second gripping device 220 in a closing direction (indicated by the double arrow R in FIG. 3) in order to connect or release the clamping jaws 212, 222 with the frame 4, in particular a cross strut 5 or also a longitudinal strut 6 of the frame 2.
[0110] The connecting component 2 furthermore has at least one fixture interface 300 for detachably connecting to an fixture, in particular the scaffold section 10, wherein the shuttering interface 200 and the fixture interface 300 can be operable independently of one another. The mounting of the fixture interface 300 for attaching the fixture is well known, so that it will not be discussed in detail. The mounting of the attachment interface 300 for connection to the scaffold section 10 can in particular be a connecting clamp or a pipe clamp or the like.
[0111] The at least one attachment interface 300 can be connectable to a scaffold section 10, a platform section, a support, in particular a push-pull prop 13 (as explained below) as an fixture.
[0112] The shuttering interface 200 can have a locking mechanism 230 in order to adjust and/or releasably fix the position of the gripping arms 211, 221 in the closing direction R. The locking mechanism 230 can comprise a wedge 231, the outer contour of which preferably forms at least partially a control surface 232.
[0113] FIG. 3 shows a side view of the arrangement from FIG. 2. As can be seen from FIG. 3, the grooves 7, 8 of the respective longitudinal strut 6 and/or cross strut 5 have at least approximately the same shape as viewed in cross section.
[0114] At least one of the gripping arms 211 preferably has a bore 240 for fastening a push-pull support 13 (see, for example, FIGS. 6, 9 and 10). In the context of the invention, the bore 240 represents an fixture interface 300 for connecting in particular the push-pull support 13 or another support. The fixture interface 300 designed as a bore 240 can also serve to fix tools by means of a carabiner or the like. Furthermore, the fixture interface 300 can also be formed by hooks or angles in one of the gripping arms 211 instead of a bore 240 in one of the gripping arms 211.
[0115] The connecting component 2 shown in the exemplary embodiment according to FIG. 3 thus has two fixtures 300, wherein an fixture interface 300 is provided or designed for connection to a scaffold section 10 and an fixture interface 300 for connection to a push-pull support 13. Additional fixture interfaces 300 or only one of the two fixture interfaces 300 can also be provided.
[0116] The grooves 7, 8 preferably run off-center in the side surfaces 9 of the respective longitudinal struts 6 and/or cross struts 5.
[0117] As can also be seen in FIG. 1, the cross struts 5 have holes 12 in the side surfaces 9 that are spaced apart from the grooves 7, 8 for liquid drainage. The holes 12 can of course also be present in other exemplary embodiments in the struts 5, 5a, 6, 6a.
[0118] As can be seen from FIGS. 2 and 3, the first and second gripping arms 211, 221 of the connecting component 2 are designed to engage in the at least two grooves 7, 8 of a respective longitudinal strut 6 and/or cross strut 5 of the formwork panel 1.
[0119] FIG. 4a (and FIG. 4b analogously) show a sectional view through a cross strut 5 of a formwork panel 1. FIG. 4a shows greatly simplified the cross strut 5 which is connected to the shuttering interface 200 of the connecting component 2 in FIG. 3. The cross strut 5 is shown cut in a plane perpendicular to its longitudinal direction. In the illustration on the left of the cross strut 5, the formwork facing 11, which is connected to the frame 4, can also be seen in section. The formwork facing 11 rests flat on the side or front side of the cross struts 5 facing the left. In the background, a region of longitudinal strut 6 can be seen which is connected to the strut 5 in section. In the illustration, the two gripping arms 211, 221 of the gripping devices 210, 220 of the connecting component 2 can also be seen which are connected to the cross strut 5 in a force-fit and form-fit. The cross strut 5 is formed by a profile tube which has the shape of a bone or an H. On the side of the cross strut 5 pointing upwards in the illustration and on the side pointing downwards in the illustration, a groove 7, 8 can be seen in each case, which extends in the longitudinal direction of the cross strut 5, i.e. into the plane of the drawing in the illustration. Here, the grooves 7, 8 have an identical, rectangular cross-section. The two grooves 7, 8 are arranged symmetrically in the vertical direction and opposite one another on the cross strut 5. The regions of the gripping arms 211, 221, which are shown in FIG. 4a, are designed identically. The two gripping arms 211, 221 have, on their tip facing the left in the illustration, a projection or a clamping jaw 212, 222 which here forms a region which in each case engages in one of the grooves 7, 8. As can be seen, the clamping jaws 212, 222 have a projection at their front ends which is designed to engage in the grooves 7, 8 of the frame 4. In the shown embodiment, the lower of the two gripping arms 221 is designed to be movable in a direction parallel to the formwork facing 11, whereby the distance between the two gripping arms 211, 221 is designed to be adjustable. To produce a connection between the shuttering interface 200 and the formwork panel 1, the lower gripping arm 221 is moved in the direction symbolized by an arrow in the illustration or vertically downward in the closing direction R, so that the distance between the two clamping jaws 211, 212 is greater than the width of the cross strut 5 in the vertical direction. Subsequently, the two gripping arms 211, 221 are pushed partially over the cross strut 5 until the clamping jaws 212, 222 are located adjacent to the two grooves 7, 8. Subsequently, the lower gripping arm 221 is moved toward the upper gripping arm 211, and the distance between the two gripping arms 211, 221 is reduced. In this case, the two projections or clamping jaws 212, 222 each engage in a groove 7, 8, thereby creating a form fit. In this state, in which the two clamping jaws 212, 222 already form a positive-form-fit with the grooves 7, 8, the connecting component 2 can be displaced parallel to the running direction of the grooves 7, 8 along the cross strut 5 until the desired relative position between the connecting component 2 and cross strut 5 is reached. Subsequently, the lower gripping arm 221 is moved toward the upper gripping arm 211 until the two gripping arms 211, 221 clamp the cross strut 5. In this state, a frictional connection is then also present between the clamping element or the shuttering interface 200 of the connecting component 2 and the cross strut 5. The described adjustability of the relative position of the connecting component 2 along the grooves 7, 8 is particularly advantageous for a flexible connection between the connecting component 2 and the formwork panel 1. Such a connection can also be made between a connecting component 2 and a longitudinal strut 6. In the background, a groove 7 is also arranged in the shown longitudinal strut 6 and is aligned with the grooves 7, 8 in the cross strut 5.
[0120] FIG. 4b shows an embodiment of the connecting component 1 with a design of the fixture interface 300 deviating from FIG. 2. Only an fixture interface 300 designed as a bore 240 is shown; an fixture interface 300 for a scaffold section 10 is not provided, but could however be connected, preferably detachably, to the contact surface of the shuttering interface 200 shown in more detail below.
[0121] FIG. 5 shows a perspective detailed view of another embodiment of a shuttering interface 200 of a connecting component 2. The connecting component 2 of the embodiment shown in FIG. 5 has an intermediate rod 10c as an fixture interface 300 which is formed by a tube section with a round cross-section. The size and shape of the cross section of the pipe section of the intermediate rod 10c corresponds to the shape and size of a vertical rod 10a of the scaffold section 10. The two gripping arms 211, 221 of the shuttering interface 200 and the locking mechanism 230 are arranged on the intermediate rod 10c and are connected to a cross strut 5 of the formwork panel 1 (not shown in detail). The scaffold section 10 is connected to the intermediate rod 10c via a horizontal rod 10b via a scaffold interface (not shown in detail).
[0122] FIG. 6 shows a perspective detailed view of a cross strut 5 into which a connecting component 2 is clamped. Furthermore, a push-pull support 13 is attached to the bore 240 of the gripping arm 211 of the connecting component 2.
[0123] FIG. 7 shows a perspective detailed view of a cross strut 5 on which a scaffold section 10 is connected by means of the connecting component 2.
[0124] FIG. 8 shows a simplified sectional view through a longitudinal strut 6 or a cross strut 5 of the frame 4 of the formwork panel 1. The dimensions are to be understood here purely by way of example and not in a limiting manner but have, however, proven to be advantageous.
[0125] The side walls 7b, 8b of the respective grooves 7, 8 are inclined outwardly from a groove base 7a, 8a of the respective grooves 7, 8, wherein the side walls 7b, 8b preferably enclose an angle of 95 to 125, in particular 110, with the groove base 7a, 8a.
[0126] Furthermore, the grooves 7, 8 can have a depth of 9 mm to 16 mm, preferably of 13 mm.
[0127] FIG. 9 shows a perspective view of a system 3 for shuttering a wall element. In the exemplary embodiment, the system 3 is composed of three formwork panels 1, wherein a corresponding system is also to be positioned opposite to form a receiving space for, for example, concrete, for example as described in WO 2021/148232 A1.
[0128] FIG. 9 is intended to illustrate that the grooves 7, 8 can be used to attach connecting components 2 to the cross struts 5. The connecting components 2 can serve to fix the scaffold section 10 to the formwork panel 1 with vertical bars 10a, a horizontal rod 10b and a tread surface 10d and also push-pull props 13.
[0129] In the grooves 7, 8, the connecting component 2 can be fixed continuously along the extension of the grooves 7, 8.
[0130] The grooves 7, 8 and the connecting components 2 enable a scaffold or a scaffold section 10 to be connected directly to the formwork panel 1.
[0131] FIG. 10 shows a side view of a system 3 for shuttering of a wall element.
[0132] FIG. 11 shows a front view of the connecting component 2 in a first embodiment in the unlocked state.
[0133] FIG. 12 shows a sectional view according to the line XII-XII of FIG. 11.
[0134] As can be seen, the two gripping devices 210, 220 each have recesses 233 which at least partially overlap one another and into which the wedge 231 is insertable or inserted. Only the recess 233 in the second gripping device 220 is visible in the figure. The recess 233 of the first gripping device can be seen, for example, in FIGS. 2, 3, 4b, 6 and 7. The wedge 231 can be arranged in a captive manner in the recesses 233, wherein the wedge 231 preferably has stops 231c, 231d projecting beyond the recesses 233 at each of its end faces 231a, 231b to form the captive securing (see in particular also FIGS. 2, 3, 6 and 7). As can be seen from FIG. 11, the gripping arms 211, 221 run plane-parallel and at a distance from one another, and the second gripping arm 221 is arranged in an intermediate space 250 between the two first gripping arms 211. At least one bolt 251 can be present, which bridges the intermediate space 250 between the first gripping arms 211 and is arranged such that it serves as a stop for the second gripping arm 221.
[0135] FIG. 13 shows a front view of the connecting component in the first embodiment in the closed position.
[0136] FIG. 14 shows a sectional view according to line XIV-XIV of FIG. 13.
[0137] FIG. 15 shows a front view of the connecting component 2 in a second embodiment in the unlocked state. In this case, no separate fixture interface 300 is provided, but the bore 240 can be used as an fixture interface 300, for example for fastening a push-pull support 13.
[0138] FIG. 16 shows a sectional view according to the line XVI-XVI of FIG. 15.
[0139] FIG. 17 shows a front view of the connecting component 2 in the second embodiment in the closed position.
[0140] FIG. 18 shows a sectional view according to the line XVIII-XVIII from FIG. 17.
[0141] In FIGS. 19 to 21, different views of the wedge 231 are shown. As can be seen, the wedge 231 or its main surface has different widths to be able to be introduced or driven in the recesses 233 in a correspondingly fixed and secured manner in order to be braced.
[0142] FIG. 22 shows a side view of the connecting component 2 in which one of the first gripping arms 211 is removed, and a projection 221a of the second gripping arm 221 is drawn in a broken line which can serve as an anti-rotation device for a fastening element 301 connecting the fixture interface 300 and the shuttering interface 200. A contact surface of the fixture interface 300 is provided with the reference sign 302.
[0143] FIGS. 23 and 24 show further views of the connecting component 2 according to FIG. 22.
[0144] FIG. 25 shows a side view of the connecting component 2 according to FIG. 22, in which the second gripping arm 221 is additionally removed as well.
[0145] The shuttering interface 200 and at least one of the fixture interfaces 300 can be detachably connected to one another, wherein the shuttering interface 200 and the fixture interface 300 preferably each have a contact surface 202, 302 with an elongated hole 203, 303 (see also FIGS. 12 and 14), and wherein the fastening element 301 can be introduced through the elongated holes 203, 303 in order to releasably connect the contact surfaces 202, 302 to one another.
[0146] The fastening element 301 can be integrally connected to the contact surface 302 of the fixture interface 300 (for example by welding), and/or the second gripping arm 221 can have the projection 221a which is designed and arranged such that a rotation of the fastening element 301 is limited by the projection 221a.
[0147] The contact surface 202 of the shuttering interface 200 can be formed by an angled surface of one of the first gripping arms 211, and/or the contact surface 302 of the fixture interface 300 can be formed as shown in FIG. 26 by a base of a rail which is U-shaped in cross section.
[0148] FIG. 26 shows a side view of the rear side of the contact surface 302 of the fixture interface 300, wherein the fastening element 301 designed as a double T is inserted into an elongated hole 303 of the contact surface 302.
[0149] For assembly, the fastening element 301 is inserted through the two elongated holes 203, 303, then rotated by 90 and welded to the bottom of the U-shaped rail to achieve captive securing. In this embodiment, the fastening element is thus part of the fixture interface 300.
LIST OF REFERENCE SIGNS
[0150] 1 Formwork panel [0151] 2 Connecting component [0152] 3 System [0153] 4 Frame [0154] 5 Cross strut [0155] 5a Frame cross strut [0156] 6 Longitudinal strut [0157] 6a Frame longitudinal strut [0158] 7 Groove [0159] 7a Groove bottom [0160] 7b Side walls of the groove [0161] 8 Groove [0162] 8a Groove bottom [0163] 8b Side walls of the groove [0164] 9 Side surfaces [0165] 10 Scaffold section [0166] 10a Vertical bar [0167] 10b Horizontal bar [0168] 10c Intermediate rod [0169] 10d Tread surface [0170] 11 Formwork facing [0171] 12 Holes [0172] 13 Push-pull support [0173] 200 Formwork interface [0174] 202 Contact surface of the shuttering interface [0175] 203 Elongated hole [0176] 210 First gripping device [0177] 211 First gripping arm [0178] 212 Clamping jaw [0179] 220 Second gripping device [0180] 221 Second gripping arm [0181] 221a Projection of the second gripping arm [0182] 222 Clamping jaw [0183] 230 Locking mechanism [0184] 231 Wedge [0185] 231a End face of the wedge [0186] 231b End face of the wedge [0187] 231c Stop [0188] 231d Stop [0189] 232 Control surface [0190] 233 Recess [0191] 240 Hole [0192] 250 Intermediate space [0193] 251 Bolt [0194] 300 Fixture interface [0195] 301 Fastening element [0196] 302 Contact surface of the fixture interface [0197] 303 Elongated hole [0198] R Closing direction
