DE1814019U - FASTENING DEVICE FOR TENSION CONNECTIONS DURING PIT LINES IN METAL. - Google Patents

Description

Patent attorney RA. 194 949 * 25. I ßfj

D: Am ^ H ^ ithcuser * "

Eat, Ik-Tjoidsir. 9

! ssen, March 22nd, 1960 14 282 G.

B 36 479 / 5C Gm

Company Bergbaustahl G.m.b.H. & Co., Hagen i.V., Elberfelderstrasse,

"Locking of tensioning connections when building pit lines in metal"

I ¹ Multi-part frames or arches made of channel profile iron are often used for the construction of the pit or tunnel. The straight or curved profile iron forming the individual structures are placed one inside the other in such a way that their ends overlap, which are then braced in the direction of the inner depth. The bracing is carried out in such a way that the profile irons laid one inside the other are connected by a frictional connection, which then gives way when the load on the structures exceeds the maximum permissible limit, so that the profiles slide into one another telescopically.

For bracing the profile iron, those connections have proven to be particularly effective, the one the bottom of the have outer profile iron comprehensive half-clamp and clamping screws acting on it, which are hook-like or grasp with a bar connecting them in pairs around the edges of the inner profile iron.

As a rule, two such tension connections are arranged at each connection point of the structures, one near the end of the outer iron and one close to that of the inner iron.

Werni now the profile iron in case of overload in

slide together, the clamping connections must be in their position relative to the end of the respective profile iron end assigned to them, while they are relative to the have to move the other iron. For this purpose, the clamping connections are provided with locks, which have the shape of a closed or U-shaped bracket. The bracket assigned to the outer profile lies in front of the lower end edge of the outer profile and behind the Yoke pieces or the connecting web of the associated pair of clamping screws, while the other locking bracket of the connection point is assigned to the inner profile and at the same time in front of the upper end edge of the inner profile and behind the half clamp of the associated tensioning screws.

The aim of the innovation is to improve the locking of the clamping connections during expansion of the G-rubenstrecken or the like. and you consists in that the locking bracket assigned to the inner profile with ring-like bent ends each has a shaft of the clamping screw includes, while to lock the clamping means at the end of the outer profile on its flange laterally in the area the clamping screw head protruding cams are provided.

The new tion s according to executed locking results in a significantly reduced compared to the known designs Material expenditure a flawless permanent securing of the correct position of the clamping means relative to the outer and Inner profile and above all prevents an unintentional loosening of the locking means from the clamping means.

mm 3 -

The locking bracket assigned to the inner profile can be made in one piece, but it can also be made according to a Another feature of the innovation be provided with a joint in which the locking bracket with hook-like curved ends each a ring body encompassing the shaft of the clamping screw penetrates

Furthermore, instead of one with a continuous web provided bracket are used to lock the inner profile, two hook brackets, which either with ring-like curved Sriden 3e comprise a shaft of the clamping screw or with hook-like bent ends movable with the ring body, but expedient are inextricably linked.

The newly designed locking can also be attached after the erection of the building and later can be easily removed or replaced

On the drawing are some embodiments of the The innovation shown, namely show:

Jig. 1 the locking of a clamping connection in

Side view, namely one embodiment in solid lines and another embodiment. form in dashed lines, fig · 2 the same locking mechanism at the end of the inner profile

in top view, the form drawn on the right of the embodiment shown in solid lines in fig. 1 and the shape shown on the left in fig. 1 shown in dashed lines Embodiment corresponds to, and

Pig. 3 the lock at the end of the outer profile in top view

On the drawing is the gutter-shaped outer profile iron of the expansion arch at the connection point shown with 1, the inner profile with 2.

The clamping means consist of the half-clamps 3, 4, the ^{clamping screws 5, 6 acting on their indices 3% 4 1} , which with their hook-shaped bent head 5 ^f or 6 * grasp around the upper edge 2 ^{M of} the inner profile iron 2 «

The tensioning screw 6 is arrested at the end of the outer iron 1 by bolts 7 (Pig 3) welded to the two sides of the iron, against which the head 6 ^{1 of} the hook lies very tightly.

A U-shaped bracket 8 is used to lock the clamping screw 5 at the end of the inner iron 2, the web 9 of which lies in front of the end edges 2 * of the inner iron 5 below the end 3 ^{1 of} the half-clamp 3

Instead of a one-piece bracket 8, a bracket 12 provided with joints can also be provided, in which the joints are formed in that the arms of the bracket terminate in hooks 13 which each encompass the shaft of the clamping screw 5 ! Pass through ring body 14 · Included in this embodiment the single body 14 the clamping screw 5 below the end 3 * of the half-clamp 3 and is clamped by the nuts 11

It is also possible, instead of a U-shaped lock plate 8 or 12 to apply two hooked bracket 15 parts whose Endo ^ as shown in Mg. 2 dot-dash line drawn, around the edge 2 ¹¹ engage the inner iron. In this case, the hook end 13 of the bracket part 15 can be closed, as " ^{indicated at 16 in S 1} Ig. 1, so that the ring 14 and bracket part 15 form one component.

Claims (2)

i. 194 948 * 25. *. _ 6 S c h u t ζ a n s ρ r ü c h e ί 1.) Locking τοη clamping connections when extending the pit in steel using two nested gutter profiles, the ends of which cross each other with a A pair of tensioning screws connected by a half-clamp placed around the bottom of the outer profile are clamped together, bow-like means are provided in front of the end edges of the inner profile, characterized in that for locking of the inner profile is a bracket with hook-like bent ends that ge attached to the shaft of the clamping screw enforce chain link-like ring bodies 2.) Lock according to claim 1, characterized in that that instead of a single bracket two with hooks the end edges of the inner profile embracing bracket parts are provided which with hook-like bent ends movable with the ring body arranged on the clamping screw, but appropriately inseparable are connected, The patent attorney = ">To", qxörtfK * cftXJOrcfcSK ". Unfsr. ^ Ob _ D .. 1- ^ ^ _{nn3i1 jS} <3er> iibtich Pteisen delivered.