FI90684C - Holder for scaffolding handrails - Google Patents

Abstract

Attached to the pole (31.1) of a scaffold is a small wedge box (33), in the insertion space of which either one tab or two tabs (35) of railing bars (34) can be inserted. A wedge (65) which is displaceable and swivellable on a bolt (70) has an elongated hole (75) and an outer pressing surface (78) which is located at an appropriate wedge angle thereto and at the top end of which a lifting cam (97) is formed. The mounting and outer contour of the wedge (65) are selected such that insertion clearance (92) remains and the wedge can either slip through or be lifted by means of the cam surface (100) or of the lifting cam (97) during insertion. The outer pressing surface (78) and the elongated hole (75) are sufficiently long, taking the wedge angle into consideration, to clamp one tab (35) or two tabs (35) securely. <IMAGE>

Description

1 90684

I kept the racks on the railings. - Hållare for stallningars ledstangar.

The invention relates to holder railings for handrail racks with a wedge housing and a rotatable, non-disappearing wedge supported thereon.

According to DE-PS 27 57 189, the railings of the racks are provided with connecting plates which extend downwards from the baking and can be pushed into the wedge housing. In this case, the non-disappearing wedge is arranged with suitable wedge devices with a sufficient feed length, which makes it possible to fasten only only one or also two connecting plates with the same wedge. This known system has suitable support surfaces and separate members to prevent disappearance. In connection with the installation, it must be taken into account that the wedge is out of the inlet space and is suspended in the one and only possible place intended for it. If this is not taken into account, the installer must go to a possibly high rack without side securing at that point and turn the wedge to the suspended position. This is tricky and in some situations also dangerous. Due to the two grooves, the wedges extend relatively far into the working and lap space of the rack.

Other older structures have a similar wedge housing with a transversely extending notch in front of the post wall with connecting plate responses and a wedge guided laterally by support surfaces that push out into the insertion space. In the newer device according to DE-GM 87 06 723 = DE-OS 38 01 354 A1, it is arranged that, without other support measures, the long hole wedge is supported on the screw threads. In this case, both compression outer surfaces have different distances from the longitudinal hole on both sides of the wedge to take into account the different thicknesses that occur depending on whether one connecting plate or two connecting plates are applied. Such a wedge hangs in an unsafe position in an unsafe position if another joint plate is to be installed. As a result, before inserting the connecting plate, it must first be decided whether only one connecting plate or two connecting plates are to be installed and the user must be able to assess the position of the wedge with its different widths, possibly even remotely, to hang it in each end position. If an error estimate is made here, the connecting plate can be pushed in, but the wedge can no longer be moved to the locking position. It is also difficult to remove the connecting plate, because the wedge in the wrong position now partially fixes the inserted connecting plate. The wedge must be raised to a suitable position to insert the second connecting plate. In this case, the wedge of the straw should be kept raised with one hand, so that the person unloading the tax assembling the rack has only one hand free at the handrail. In this system and structure, large parts of the rack can only be installed by two people. In a one-person installation, it must be possible to assess the correct position of the wedge at any given time to bring the wedge into the correct position on the front cover in each housing. Such demands are cumbersome for Kay-tanto. Turning the wedge on a high scaffold without a railing is not safe. Supporting the wedge on one simple pin, in addition to a threaded pin, results in very fast, high wear and unspecified wedge ratios. The support on the wedge slabs and the compressive forces securing the slabs are applied directly to the post wall and thus provide unfavorable support conditions. The connecting plates of the side walls of the entrance space, which are individually welded to the supports, must be made very stable and oriented very precisely in order to obtain a serviceable system. Nevertheless, there are high loads and stress peaks in the corners.

U.S. Pat. No. 2,878,079, DE 2,634,465 and CH 638,859 also disclose various wedge structures, which, however, have the disadvantage of e.g. the fact that the wedge cannot be rotated freely to fill 3 90654 turns or that the structure is technically cumbersome and expensive to manufacture.

The patent (patent application) deals with a group of inventions which are related to each other in such a way that they implement a single general inventive idea, which consists in designing the wedge holder, fastening and support devices and related elements of such railing holders in such a way as to improve manufacture and use. whereby the structure of the wedge and the support of the forces present are improved and optimized.

The object of the invention is to provide such a holder with a support and wedge device for the railings of the racks, which makes it possible to hang the handrail without sticking to the wedge in all wedge positions, possibly reducing wear and increasing stability and providing simple and safe manufacturing.

Holder according to the invention for rack railings; having the following characteristics: the racks have vertical posts; a wedge housing is attached to the post at a predetermined height, each of which has an inlet space at least open upwards; the handrails have downwardly extending railing connection plates that can be pushed into the wedge housing inlet space; the insertion space is limited by the side walls, a vertical connecting plate stop is formed at the post wall; a wedge holder is provided on the insertion side of the insertion plate opposite the connecting plate plate; the wedge holder has slit walls connected to the side walls and which rain-defines the open space opposite the post and into the inlet space and the upward, downward and outward open slots; a horizontal pin transverse to the post axis extends the slit walls; in order to fasten at least one handrail connecting plate, a wedge is movably and foldably arranged in the wedge holder 4 v 4 6 8 4; the wedge has a long hole through which the pin extends; the wedge has at least one pressing outer surface which comes into contact with the outer wall of the connecting plate of the respective handrail; a wedge angle is arranged between the compression outer surface and the longitudinal reference line; the outer perimeters surrounding the longitudinal shirt have a distance from the pin axis less than the distance between the pin axis and the splice plate abutment minus twice the thickness of the splice splice plate; is characterized by the following features: the length of the long hole and the pressing outer surface as well as the wedge angle are adapted to the thickness of the connecting plates so that one connecting plate or two connecting plates can optionally be pressed against the connecting plate stop on the same pressing outer surface; in the mounting wedge position, at the upper end of the pressing outer surface, there is a lifting cam; the outer circumferential surface opposite the pressing outer surface is at most at a distance from the longitudinal reference line less than the distance between the center of the pin and the splice plate minus twice the thickness of the splice splice plate or wedge formed in the middle of the longitudinal splice; the long hole in the wedge and the other parts of the pin are shaped so that the wedge can be freely pivoted in at least both of its suspension positions.

Because the shape of the wedge, as well as the length and position of the long hole with respect to the outer circumference, have fully defined and optimized ratios, the wedge can hang in any desired end position and it is possible to insert either one connecting plate or two connecting plates simultaneously or two joints without handling the wedge. . The wedge can then be placed in the fastening position without obstructions and attached to the soak li 5 90684. When the wedge is removed, it is possible to raise the connecting plate without sticking thanks to the skillful shape selection of the wedge. In addition, the measures are remarkably simple and ensure a significant simplification of installation without any increase in manufacturing costs. The safety during the installation and disassembly of the scaffolds is improved in some cases because the installation person does not have to go anywhere without the securing of the handrail to hang the handrail, because the hanging position of the wedge does not have to be checked and the wedge cannot be adjusted. Thanks to the freedom of infection, only one person is needed for disassembly and reassembly.

In order to solve the problem that the wedge frame is shaped in such a way that the wedge does not prevent insertion in any position, the removal position does not prevent pulling out and nevertheless in the manufacturing position allows both one and two connecting plates to be secured, there are two dimensions, angle and circumference. namely, to select the frame so that the essentially important wedge head allows either the wedge to be slid between the support and the splice plate response or to insert the splice plate, or forces do not occur when pulled out. In this case, the lifting principle can be used twice. In this case, no lap-slipping is required. This results in a symmetrical wedge or the sliding conditions can be maintained at one end and the lifting conditions at the other. This results in an asymmetrical wedge with only one side of the connecting plate pressing surface. Both slightly different structures in women in two possibilities solve the same task.

6 9 O 6 B 4

Due to the appropriate design of the lifting spout extending into the insertion space, the hanging wedge automatically moves to a partially raised position, regardless of whether one or two connecting plates are fitted in place and without any wedge effect. Thus, one person can fit either only one railing slab or another railing slab after fitting another railing slab without having to cover one wedge to hold the wedge in place. The wedge is then moved from its partially raised position to the securing position and possibly struck with a hammer. After removal, it can, like other wedges, hang down and the wedge no longer prevents disassembly, which can again be done by a single person.

If the wedge is formed as a double wedge with a symmetrical appearance and then the length and distance of the wedge angle, longitudinal hole and compression outer surface from the longitudinal reference line are dimensioned so that the wedge in both possible positions has such an impact or optionally , in which case the wedge does not have to be placed in the ground position during installation and only needs to be folded up when fastened.

The surrounding walls of the receiving space to form the wedge housing and the appropriate shapes of the wedge housing are discussed in other claims and in the specification, whereby a one-piece structure with a notch on which the splice plate response is formed provides a large support surface and a waxy tendency to protrude. The gap may be suitably limited depending on the thickness of the wedge.

Tasteful quality structures of wedge housings of this type have had a separate surface supporting the wedge force, as in DE-PS 27 57 189, or shoulder-supported support surfaces protruding laterally next to the wedge. Both measures li 7 90634 result in relatively high surface pressures. If the possibilities discussed above are transferred to an appropriate circumferential wedge, the support of the wedge forces on the pin is obtained. In the case of a simple line contact and possibly only at the apex of the thread, the surface pressures of the tal-16 become so great that the cost of the pin and the longitudinal wall of the wedge reaches considerable dimensions in a short time. Here, the provision of assistance to the circumferential wedge, either symmetrical or asymmetrical or possibly without a lifting cam, can be carried out as set out in claim 7.

Thus, it has been proposed to arrange the enlarged support surface on the pin and to fit it appropriately with respect to the width of the long hole. Thanks to the enlarged support surface, it is possible to fasten inexpensive, low-wear, simple-to-manufacture and simple-to-build solutions with suitable materials, the details of which are discussed in other claims and in the following description together with other features, advantages and various aspects of the whole arrangement.

Embodiments and modifications of the invention will now be described with reference to the accompanying drawings.

Figure 1 shows an oblique part of a rack with handrail rods attached to wedge housings.

8 90684

Fig. 2 shows an internal view of the wedge housing with the railing rod end provided with a connecting plate inserted, however, the post of the scaffold is not shown.

Fig. 3 shows a plan view of the wedge housing with the rack post cut away and a plan view of the two recessed ends of the handrail rod, the wedge housing being bent from a steel plate and having an inclined rotating pin provided at an angle.

Fig. 4 shows a view similar to Fig. 3 with a wedge housing made of light metal and an accompanying rotating pin with two chamfered double wedges.

Fig. 5 shows a side view of a wedge housing next to the post without the built-in railing connecting plates, the wedge with a single lifting cam shown in the first embodiment hanging in place.

Fig. 6 shows a view corresponding to Fig. 5, in which the inserted railing connecting plate is fastened to the ki-1a 11a.

Fig. 7 shows a view corresponding to Fig. 5, in which the two mounting plates of the handrail are arranged in place, but not yet fixed with a wedge.

Fig. 8 shows a view similar to Fig. 7 with a wedge raised slightly before the fastening position.

Fig. 9 shows a view corresponding to Figs. 7 and 8, in which the wedge is in the fastening position, the parts, in particular to show the chamfer of the pin, being shown immediately cut in a vertical plane in front of the wedge.

9 90684

Fig. 10 shows a view corresponding to Fig. 5, in which the wedge hangs at the other end of the long hole so that the lifting cam is in the inlet port 1.

Fig. 11 shows a view corresponding to Fig. 10, in which already one connecting plate is in the insertion path while the other is partially pushed and raises the wedge by hitting the lifting cam.

Fig. 12 is a view similar to Fig. 11, in which both handrail connecting plates are arranged in place and the wedge is shown in the selected position to which it is hand-turned after first being slightly raised by means of the inlet bar and the lifting cam compared to Fig. 11 and when further raised, it slides past the connecting plates to turn the long end of the long hole to the wedge mounting position.

Fig. 13 shows a view corresponding to Fig. 5 of a double wedge. . another variant of the wedge in the form of.

Fig. 14 shows a view corresponding to Fig. 13 in a situation where the connecting plate of the handrail is slightly pushed into the entry space and raises the wedge slightly as a result of hitting the lifting cam.

Fig. 15 shows a view corresponding to Fig. 14, in which one connecting plate of the handrail is arranged in place and fastened to the wedge.

'! Fig. 16 shows a view corresponding to Fig. 14, in which one handrail connecting plate is fitted and the second handrail connecting plate at the beginning of the entrance has raised the wedge.

10 90634

Fig. 17 is a view similar to Fig. 16, in which both connecting plates of the handrail are arranged in place and fastened with a wedge, the parts, in particular to show both chamfers of the pin, shown directly in a vertical plane in front of the double beam.

Fig. 18 shows an enlarged partial vertical section along the line 18-18 in Fig. 2, showing the bevel of the pin, its other structure and support together with the simple wedge and its long hole.

Fig. 19 shows a schematic representation of a wedge with a long hole and a support for a chamfered support cylinder rotating on a support pin.

Fig. 20 shows a schematic representation corresponding to Fig. 19 of a second embodiment with a fixed support pin, as well as a long-hole end structure for rotation.

Fig. 21 shows a partial view of a long hole and a fixed, chamfered support pin corresponding to the previous figures.

Fig. 22 shows a view corresponding to Fig. 21 at the attachment of the support pin without a wedge.

For example, the rack 30 schematically shown in Figure 1 has vertical posts 31.1 and 31.2 which are connected by a transverse horizontal support 32 to form a frame. Two wedge housings 33 are attached to the posts 31.1 external to the building at predetermined heights suitable for the inside of the frame - as is customary in such scaffolding. railing connection plates 35.

They have a width 36 of about 33 nun and a thickness of 37 of about 6 mm. From the support surface 38 they extend to a length 39 downwards from the corners to the cut-off end edge 40. The connecting plates 35 of the handrail are pushed upwards in a known manner and here, for example, also downwards into the open wedge housing 33 inlet 41. The inlet spaces 41 are delimited by side walls. The side walls 42.1 and 42.2 are connected to them at the post wall 43 by means of a section 44 formed in one piece. This notch 44 is arranged according to the legion of a post with a tubular abutment surface 45.

Here, there are two structural alternatives according to Figures 3 and 4. The alternative according to Figure 3 is formed as a bent steel plate part. In this case, the notch 44 has a central abutment portion 46 which is formed straight. From there, two oblique arms 47 are bent approximately tangentially to the post wall 43 at about 30 ° C. At the ends of the branches, in the low-rounded corners 48, the side walls 42.1 and 42.2 are bent parallel to each other so as to obtain an inner gap 49 which - as can be seen - is considerably larger than the width 36 of the handrail connecting plate 35. At the corners 48, the wedge housing 33 is welded to the post 31.1 by means of two vertical V-seams 51, as shown in Fig. 3. Due to the bent shape, small cavities 52 are formed.

The embodiment according to Fig. 4 differs from the above only in that it is a light metal extrusion profile in which the inner abutment surface 55 of the section 44 is formed in a circular arc. All other elements are essentially similar. The wedge housing structures of both options are therefore discussed together.

12 90684

A wedge holder 60 is formed on the opposite side of the splice plate stop 50. It has a slot 61 radially with respect to the post cross-section, the width 62 of which is sufficiently large than the outer width 63 of the corrugated wedges 65 of the corrugated wedge 65, as shown in Figures 2 and 3. Due to the corrugated shape of the wedge shown in Figure 2, dirt is easily removed and easy sliding through the gap is achieved.

Slit 61 is bounded by both slit walls 66.1 and 66.2. They are arranged parallel inwards inwardly with respect to the side walls 42.1 and 42.2 and connected to the side walls 42.1 and 42.2 by means of connecting arms 67.1 and 67.2, which arms are perpendicular to them and delimit the outlet of the inlet space 41. As can be seen, the gap 61 is open up and down and open towards the entry space 41. Thus, the suitably constructed wedge 65 can rotate freely.

For supporting the wedge 65, there is a pin 70 extending through the slit walls 66.1 and 66.2, which may be shaped in different ways, as will be described later. The pin 70 extends through the longitudinal hole 75 of the wedge 65. Together, they provide support for the wedge forces and also prevent the wedge from disappearing.

In the case of the wedge 65, there are in principle two outer circumferential shapes, as shown in Figures 5 to 12 and 13 to 17.

The wedge 65 of Figures 5-12 has an asymmetrical outer circumference with one lifting cam 97, and the wedge of Figures 13-17 has a symmetrical wedge with two lifting cams 97.1 and 97.2. In both wedge shapes, there is only one long hole 75, the length of which is denoted by reference numeral 76 and the width by reference numeral 77, and which hole extends through a flat wedge. The wedge is suitably formed of a cut steel plate or possibly a light metal plate or reinforced plastic, depending on the design and requirements of the rest of the rack. Each wedge has a pressing outer surface 13 90684 78. It extends along the wedge angle 79 with respect to the reference line 80 of the long hole 75. The pressing outer surface 78 is formed straight. According to an important feature of the invention, the length 81 of the straight compression outer surface 73 and the length 76 and the wedge angle 79 of the long hole 75 are matched so that either one handrail plate 35 or two handrail plates 35 of the handrail 35 can be superimposed by the same compression surface 78.

The reference line 80 passes through the axis of rotation or pivot axis of the wedge 70 formed by the shaft 90 and is displaced in the case of a simple wedge 65 by a recess 121 of the longitudinal center axis of the long hole 75 with respect to the pin sheath line direction 78 as shown in Figs. In the wedge 115, which has two lifting cams 97.1 and 97.2 and two chamfers 121, 141, both lines coincide with the reference line 80, as shown in Figs.

In the example of the first embodiment of the wedge 65 of Figures 5-12, the second long outer circumferential surface 82 is parallel to the longitudinal hole 75 reference line 80 and spaced 83 therefrom, as will be described in more detail below.

;;; The connecting ring 85 in the narrower portion 84 of the wedge 65 from the pressing outer surface 78 to the outer circumferential surface 32 is formed by a portion 85.1 adjacent to the outer circumferential surface 82 in the shape of a quarter arc. to the transition point 88 of the outer surface 78.

The distance 89 (Fig. 3) from the splice plate stop 50 to the shaft 90 of the pin 70 is adapted to the thickness 37 and distance 83 or radius 87 of the railing plates 35 so that when inserting two railing connecting plates 35 - as shown in Fig. 7 90684 - with the wedge 65 suspended down and supported there is no contact with the end 91 of the long hole 75 at the narrow side 84 of the wedge 65. The distance 89 is thus greater than the sum of the two thicknesses 37 and the distance 83 or rain 87, so that the ice insertion clearance 92 and the railing slabs can be pushed into place without wedge contact either as single slabs or both simultaneously or sequentially without blocking the wedge 35 slide freely with its outer surfaces. On the other hand, the distance 89 is dimensioned so that in the fastening position of the wedge 65 (Figs. 6 and 9), one or two railing joints 35 can be securely fastened by means of its compression outer surface 78 and its wedge angle 79.

The wedge 95 is provided on the outer circumference of the wedge leveåmmån side 96 of the lifting cam 65 and 97 formed so that the outer compression surface 78 is derived from the drawing that occur in måårån pitkåreian påahån 103 degree rotation point 102 over 80 normal direction of the reference line 105 to the corner. Thereafter, it leads to the end 98 of the transition body portion 99 continuously on the cam surface 100, whereby the distance 101 from the pivot point 103 of the longitudinal hole 103 in the wide wedge portion 96 is larger than the radius 87. The transition body portion 99 is guided on the parallel outer surface surface 82. Here, the distances from the pivot point 102 are formed larger than in the narrower part so that when inserting the railing plates of the handrail - completely regardless of whether one or two of the handrail connecting plates 35 are pushed into the corner 105 or the cam 100 of the lifting cam 97 which point coincides with the center of the pin 70 or its shaft 90, as shown in Fig. 11. Thus, although the lifting cam 97 depends on the insertion path 41, the insertion of the slab 35 can also be carried out from a distance without any problems and the handrail bars 34 are so ensured with respect to lateral falling out and moves the wedge 65 through the intermediate position of Figure 12 and through the narrower portion 84 to the mounting position shown in Figures 6 and 9. In it, the wedge 65 is suitably fastened from above with a hammer blade. The wedge 65 can be removed by hitting from below. The figures show that the wedge 65 also protrudes slightly in the case of the connecting plates 35 of the two built-in railings slightly past the side walls 42 and the slit walls 66 and can thus be used properly.

In this asymmetrical wedge 65, the reference line 8C does not coincide with the longitudinal central axis of the long hole 75 but is - as can be seen above all in Figure 9 - additionally displaced by the amount of the bevel 121 described above and passes through the shaft 90 of the pin 70. Thus, såde 87 is also a guided pair of shafts 90.

Preferably, due to the shape or outer circumference of the wedge 60, which is selected and optimized according to many aspects, with its adapted lengths, angles, end roundings and the shape of the lifting cams, the operating spirit would be in the mounting position of Figure 6 for mounting the handrail. In this case, there is of course a handrail near the wedge housing, which can be gripped by the installation spirit16 and is thus safe.

The previously described shape of the wedge uses the principle of sliding through the part of the outer circumference of the wedge when the wedge is not in the securing position. The application example discussed in Figs. 13 to 17 shows a wedge housing 115 of the same shape and with the same reference numerals, but with respect to the center of the reference line 80 between the pivot point 102 and the end 91 of the longitudinal hole 75. 97. It has two compression outer surfaces 78.1 and 78.2 and two the outer perimeters are shaped in the same way as shown in connection with the first application example.

It will be seen from Xute's drawings that one or two connecting plates are struck into the inlet space 41 when one of the lifting lugs 97.1 or 97.2 is inserted and the wedge 115 is brought into its partially raised position. By simply raising it, the wedge can then be moved to the locking position. Also, there is no situation in this wedge 115 in which the insertion of one or two connecting plates is prevented when the wedge is not in the securing position. The wedge 115 can likewise be attached or detached. It still has the advantage that it only needs to be raised to make it slide into the safety position.

In this application example, the longitudinal centerline of the long hole 75 and the center line 80 of the displacement of the wedge 115 and the dimensions of the outer circumference coincide, since both long hole walls of the long hole 75 each rest on one of the two opposite pin vents.

In order to allow the wedge to turn and nevertheless to support the forces present in a good and meaningful way, the pin 70 must be shaped in a meaningful manner in the slotted walls 65.1 and 66.2. The design and support of the long hole will be discussed with the following application examples.

The meaningful design of the pin is clearly visible e.g. of Figures 3, 6 and 18.

The entire fastening force for fastening the railing slabs 35 must be supported by a long hole wall 120 adjacent to the compression outer surface 78. In order to reduce the surface compression in the wall of the pin 70, the pin is therefore provided with a chamfer 121 in the support area. The chamfer is in the gap 61 between the slit walls 66.1 and 66.2.

Near the end 122 of the pin 70 is a cylindrical support surface 123 having a diameter 124 corresponding to the diameter of the support hole 125 taking into account the rotational clearance. At one end is a locknut 126 having a shoulder 127 and a support stop 128. The support stopper 128 has the same outer diameter 124 as the support surface 123. The locknut 126 is threaded against the support surface 129 of the pin 70 by the outer threads 130 of the pin so that the end 122 and shoulder 131 have a slight axial clearance 66.1 and 66.2 on both sides so that the support surfaces can also rotate properly in connection with the pin 70 1 being dislodged. The distance of the chamfer 121 from the outer wall line of the pin opposite it is slightly smaller than the width 77 of the long hole, the chamfer 121 being formed so deep that taking into account the clearance and wear and abutments 123 and 128 in the support holes 125 of the slit walls 66.1 and 66.2. The support force is then also transferred to the slit walls 66.1 and 66.2 at a low surface pressure. As shown in Fig. 18, the thickness 136 of the wedge 65 is smaller than the outer width 63 of the corrugated wedge 65. however, the material thickness is adjusted according to the size of the chamfer 121, taking into account the forces present and according to the size of the support surfaces in the slit walls 66.1 and 66.2.

In contrast to the previously known, only very inadequately dimensioned wedge supports for through-pin pins for tax bolts, a simple, safe and durable solution has been proposed here, which on the one hand allows the wedge to be turned in each position and on the other hand

The pin shown in Figure 3 has - without further explanation - two chamfers at the same distance from the shaft 90. .. and the pin is thus intended for a symmetrical wedge 115 with a wedge having two lifting lugs 97.1 and 97.2. The mounting of the pin is arranged appropriately.

le 90684

Another possibility for the support of the reversible symmetrical wedge 115 or possibly also the simple wedge on the large chamfered support surfaces 141 is shown in Fig. 19. In this case, the support cylinder 140 is rotatably supported on the fixed pin 139. It is shaped taking into account the clearance and the gap 61. rotatably on the pin 133. In this case, a simple, fixed pin can be pushed and fastened to a suitably large bore in the slit wall 66.1 and 66.2.

Another alternative for supporting wedge forces over a relatively large surface is shown in Figure 20, which has a long hole comprising both ends. the rotating portions 150.1 and 150.2 extending approximately 180 ° yii, the radius 151 corresponding exactly to the outer wall of the support pin 152 to be fixed between the slit walls 66.1 and 66.2. The support pin 152 has a chamfer 121. As can be seen from the figure, the wedge can be moved in the desired wedge position in the long hole 155 over the entire area so that when wedging one or even two connecting plates there is always a large abutment surface for supporting the forces. However, if the wedge is in its end position, it can rotate freely due to the circular design of the rotating parts 150.1 and 150.2 of the long hole 155.

Another modification option for the large-area support of wedge forces is shown in Figures 21 and 22.

In this case, a flat oval-shaped support pin 160 is fixed to the slit walls 66.1 and 66.2 through them and non-rotatably relative thereto. In this way, each slit wall can have a suitable long oval and oblique profile hole 161. The ends can be fastened in a suitable manner with screws, shocks, wedges or the like. The flat oval profile is dimensioned such that the abutment chamfer 121 is dimensioned according to the support forces present, while the two outer end portions in this exemplary cat 90904 are formed into semicircles 162 and the intermediate transition surface 163 is formed planar. It may well be curved as well. The outer distance 165 between the two vertices of the arcs 162 arranged on the end faces is slightly smaller than the width 77 of the gap 75.

Thus, the wedge can be supported on the chamfer 121 - as described above - however, it can also be rotated freely in the area between the longitudinal ends to achieve the application described above. Various other designs for large-area support of the wedge and free rotation at the longitudinal ends are within the scope of the invention. The wedge can also be made thicker and the slit walls can be moved farther apart. However, the housing shape shown is optimized in terms of stability, material consumption and size due to problems in use, since the outer corners of the wedge housing and also the wedge itself do not extend very much into the rack workspace. for the installation of the rack and in such a way that it is achieved that the wedge housings with their wedges are not an obstacle when trampling from one field to another. In this respect, the wedge and housing structures shown in the drawings are also optimal in terms of material consumption, forces and solutions.

Claims (14)

1. Holders for steel handrails with the following determinations: - the stalls (30) have vertical posts (31; 31.1); - a pillar box (33), each with a least upwardly enclosed space (41), is fixed to the posts (31.1); - the handrails (34) have adjustable downwardly extending bar joint plates (35) in the stuffing space (41) of the lock box (33); - the stopping area (41) is bounded by side walls (42.1), (42.2); - at the pole wave (43) a vertical joint plate assembly (50) has been formed; - a wedge holder (60) has been arranged on the outside of the enclosure space opposite to the joint plate (50); - the wedge holder (60) has slot walls (66) which are joined to the side walls and which delimit a radially to the post and to the enclosure space (41) and up, down and out open slots (61); a waveguide and in relation to the stub axle transverse pin (70 ;; 152; 139, 140; 160) penetrates the slit walls; - in order to secure at least one rod joint plate, a wedge (65; 115) has been slidably and pivotally arranged in the wedge holder (60); - the wedge (65; 115) has a long hole (75) through which the pin (70, ...) extends; - the wedge has at least one pressure outer surface (78.1, 78.2), which will abut the outer wall of the joint plate in the respective case, outside the exposed rod; - a wedge angle (79) has been formed between the pressure surface area and the longitudinal reference line (80) of the long hole (75); - the long contours of the long holes surrounding the outer contours (85, 95) have a distance (87, 101) to the shaft (90) which is smaller than the distance (89) between the shaft (90) and the joint plate (50) minus twice the rod plate thickness; 90684 characterized by the jointed characteristic: - the length of the long hole and the pressure exterior surface and the wedge angle are adjusted according to the thickness of the joint plates in such a way that with the same pressure outer surface one joint plate or two joint plates can be pressed against the joint plate insert; - a lifting cam (97) is provided in the locking compartment at the upper end of the pressure outer surface (78; 78.1, 78.2); - the outer contour surface (82) located opposite the pressure-exterior surface (78) lies at a distance (83) from the longitudinal line (80) of the long hole (75) which is less than the distance (89) between the middle portion of the pin and the joint plate minus twice the thickness of the bar joint plate or the wedge (115) forms a center-symmetrical double wedge (2) between the spirits of the long holes (75) with two lifting lugs (97.1, 97.2); the longitudinal hole (70, 155) in the wedge (65) and the other parts of the pin (70; 139, 140; 152; 160) are designed so that the wedge (65, 115) is at least freely pivotal in its arched hinged flames. 2. A holder according to claim 1, characterized in that the side walls (42; 42.1, 42.2) and the joint plate (50) forming the threshold (44) in the sliding space (33) in the sliding space (33) are integrally connected and welded close to the horns between the threshold (44) and the side walls (42; 42.2, 42.2) of the bar (31.1). Holder according to Claim 1 or 2, characterized in that the ball box (33) is formed by an extruded cut-out sectional part of the sheet metal. Holder according to claim 1 or 2, characterized in that the ball box (33) is formed by a part made of steel plate. I:: 27 90684 5. A holder according to claim 1 or 2, characterized in that the cowl box (33) is formed as a metal molded part. Holder according to any one of the preceding claims, characterized in that the slot (61, 66.2), delimited by the mutually parallel slit walls (61) in the wedge holder (33) of the barrel (33) has a width (62) corresponding to the outer width (63) of the corrugated chambers (64) of the corrugated wedge (65) without a sufficient clearance during the fouling, and that the slit walls (66.1, 66.2) are joined by the connecting branches (67.1, 67.2) with the side walls (42.1, 42.2). Holder according to any of the preceding claims: characterized in that the support surface on which the long-hole wave (120) rests at the pin (70; 152; 139, 140; 160) is designed as a flat support surface (bevel 121, 141) . 8. Holder according to claim 7, characterized in that the support element (pin 70; the support cylinder 140) is rotatably raised with the flat support surface against the slot walls (66.1, 66.2) and the width (77) of the long hole (75) corresponds to the support surface (bevel 121, 141). spacing (133) from the casing line (70) opposite the pivot pin (70) or the spacing of the support surface (141) equal to the offset clearance. Holder according to Claim 8, characterized in that the pin (70) at the slot (61) has a bevel (102.1) and at the pin's spirits at least to a large extent cylindrical support surfaces (123, 128), which are rotatably connected thereto and rotatably stored in the slot walls (66.1, 66.2). Holder according to Claim 9, characterized in that the pin (70) has a fixed head (122), a support (123) and a counter nut (126) provided with a 28 90 684 support (128) and which support ( 123, 128) are rotatable in the support holes (125) in the slot walls (66.1, 66.2). 11. Holder according to claim 9, characterized in that the pin has a head and a shaft part connected thereto, which over a certain length is cylindrical, which length corresponds to the outer width of the slit cradle, and which has a continuous bevel over a length extending to the base part. and an axial stud ring resting on the outer surface of the second slot cradle. 12. Holder according to claim 8, characterized in that the pin (139) is fixed between the slit cradles (66.1, 66.2) and carries a support cylinder (140) rotatable in the long bore (75) which extends over the width (77) of the long bore (75). ) corresponding to the distance from the existing cylinder casing line or or from a second planar surface (141) has a planar supporting surface (141). Holder according to claim 8, characterized in that the support pin (152) is rotatably arranged between the slit walls (66.1, 66.2) and has an analogue with the bevel angle (79) inclined bevel (121) and the long hole (155) at its spirit parts. cylindrical pivot members (150.1, 150.2), the diameter of which corresponds to the outer diameter of the fixed support pin (152) with a clearance clearance. Holder according to Claim 8, characterized in that the support pin (160) is formed into a rotatable between the slot cradles (66.1, 66.2) arranged in profile flat oval shaped element, which is arranged below the wedge angle (79) at a distance from the joint plate (50) correspondingly. the wedge wedge and the width (77) of the long hole (75) correspond to the arc (162) arc (162) of the arc top (165) outer distances (165) ok with twisting clearance. n